[dpdk-dev] [PATCH v2 00/26] net/ena: new features and fixes

[Ferruh Yigit]

On 6/4/2018 1:09 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 updated - the version in the HEAD is a bit outdated now.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
> 
> ---
> v2:
> * Rebased on top of dpdk-next-net
> * Added link speed patch
> * Added fix when allocating coherent memory in the PMD

Hi Michał,

I am getting build error for ICC [1] and shared library [2], can you please check?


[1]
.../drivers/net/ena/base/ena_com.c(323): error #592: variable "flags" is used
before its value is set
        ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags);
        ^
.../drivers/net/ena/base/ena_com.c(534): error #3656: variable "flags" may be
used before its value is set
                  ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags);
                  ^
.../drivers/net/ena/base/ena_com.c(589): error #592: variable "flags" is used
before its value is set
                ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags);
                ^
.../drivers/net/ena/base/ena_com.c(634): error #592: variable "flags" is used
before its value is set
        ENA_SPINLOCK_LOCK(mmio_read->lock, flags);
        ^
.../drivers/net/ena/base/ena_com.c(1297): error #592: variable "flags" is used
before its value is set
        ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags);
        ^
.../drivers/net/ena/base/ena_com.c(1341): error #592: variable "flags" is used
before its value is set
        ENA_SPINLOCK_LOCK(admin_queue->q_lock, flags);
        ^


[2]
ena_ethdev.o: In function `eth_ena_pci_probe':
.../drivers/net/ena/ena_ethdev.c:(.text+0x6de): undefined reference to
`rte_timer_subsystem_init'
.../drivers/net/ena/ena_ethdev.c:(.text+0x6ea): undefined reference to
`rte_timer_init'
ena_ethdev.o: In function `eth_ena_pci_remove':
.../drivers/net/ena/ena_ethdev.c:(.text+0x854): undefined reference to
`rte_timer_stop_sync'
ena_ethdev.o: In function `ena_start':
.../drivers/net/ena/ena_ethdev.c:(.text+0x1ff6): undefined reference to
`rte_timer_reset'
ena_ethdev.o: In function `ena_stop':
.../drivers/net/ena/ena_ethdev.c:(.text+0x21a1): undefined reference to
`rte_timer_stop_sync'
ena_ethdev.o: In function `ena_close':
.../drivers/net/ena/ena_ethdev.c:(.text+0x21d8): undefined reference to
`rte_timer_stop_sync'