Re: [dpdk-dev] [PATCH v2 1/1] ethdev: distinguish between drop and error stats

[Thomas Monjalon <thomas.monjalon@6wind.com>]

2015-10-19 13:20, Maryam Tahhan:
> Make a distniction between dropped packets and error statistics to allow
> a higher level fault management entity to interact with DPDK and take
> appropriate measures when errors are detected. It will also provide
> valuable information for any applications that collects/extracts DPDK
> stats, such applications include Open vSwitch.
> After this patch the distinction is:
> ierrors = Total number of packets dropped by hardware (malformed
> packets, ...) Where the # of drops can ONLY be <=  the packets received
> (without overlap between registers).
> ipkterrors = Total number of erroneous received packets. Where the #
> of errors can be >= the packets received (without overlap between
> registers), this is because there may be multiple errors associated with
> a packet.
[...]
> -	uint64_t ierrors;   /**< Total number of erroneous received packets. */
> +	uint64_t ierrors;
> +	/**< Total number of packets dropped by hardware (malformed packets...)
> +	 * Where the # of drops can ONLY be <=  the packets received (without
> +	 * overlap between registers).
> +	 */
>  	uint64_t oerrors;   /**< Total number of failed transmitted packets. */
> +	uint64_t ipkterrors;
> +	/**< Total number of erroneous received packets. Where the number of
> +	 * errors can be >= the packets received (without overlap between
> +	 * registers), this is because there may be multiple errors associated with
> +	 * a packet.
> +	 */

There was not a lot of comments on this proposal.
If the idea is well received, it needs to be implemented in drivers, at least
few of them.