[dpdk-dev] [PATCH v5 0/27] net/ena: new features and fixes

[Ferruh Yigit]

On 6/11/2018 12:00 PM, Michal Krawczyk wrote:
> The ENA driver was updated with the new features and few fixes and minor
> changes are introduced.
> First of all, the communication layer which is delivered by vendor was
> updated - the version in the HEAD is a bit outdated now. ENA is able to
> communicate with the driver through Admin queue by using admin interrupts
> instead of polling.
> Admin interrupts are also used for handling AENQ events, which are used for
> the following new features:
>   - LSC handlers
>   - watchdog and device rest
>   - monitoring the admin queue
>   - handling ENA notifications (getting hints from device)
> For the watchdog and admin queue monitoring, the timers had to be used, so
> the makefile was modified to do not cut out the librte_timer.
> 
> From other fixes and changes:
>   - legacy LLQ was removed which is now deprecated API
>   - Rx out of order completion was added to enable cleaning up packets out
>     of order
>   - Tx mbufs are now linearized if they exceed supported number of segments
>   - pass information about maximum number of Tx and Rx descriptors
>   - the IO queue number is now taking into consideration maximum number of
>     sq and cq
>   - Tx id requested for sending is now being validated and the reset is
>     being triggered if it is invalid
>   - branch predictioning was added for better performance
>   - error checking and returned values were fixed
>   - macros for allocating memory in communication layer were fixed
>   - information about numa mode is now being passed to the NIC
> 
> ---
> v5:
> * Fix icc compile error in ena_com (timestamp unsused if debug not set)

perhaps no so important but to clarify, this is not an ICC specific issue, this
is a unused variable warning!