[dpdk-dev] [PATCH v9] net/i40e: determine number of queues per VF during run time

[Zhang, Helin]

> -----Original Message-----
> From: Dai, Wei
> Sent: Tuesday, December 26, 2017 11:25 PM
> To: Wu, Jingjing; Xing, Beilei; Zhang, Helin
> Cc: dev at dpdk.org; Dai, Wei
> Subject: [PATCH v9] net/i40e: determine number of queues per VF during run
> time
> 
> Without this patch, the number of queues per i40e  VF is defined as 4 by
> CONFIG_RTE_LIBRTE_I40E_QUEUE_NUM_PER_VF=4 in config/common_base.
> It is fixed value determined in building time and can't be changed during run
> time.
> With this patch, the number of queues per i40e VF can be determinated during
> run time. For example, if the PCI address of an i40e PF is aaaa:bb.cc, with the
> EAL parameter -w aaaa:bb.cc,queue-num-per-vf=8 , the number of queues per
> VF created from this PF is 8.
> If there is no "queue-num-per-vf" setting in EAL parameters, it is 4 by default as
> before. And if the value after the "queue-num-per-vf"
> is invalid, it is set as 4 forcibly. The valid values include 1, 2, 4, 8, 16 .
> 
> Signed-off-by: Wei Dai <wei.dai at intel.com>
> Acked-by: Konstantin Ananyev <konstantin.ananyev at intel.com>
> ---
> v9:
>     v9 = v8+v7, is a complete version for maintainer's convenience.
> v8:
>     As v7 patch has been accepted into dpdk-next-net-intel, this patch
>     is based on v7 patch.
>     add description in i40e document
>     fix the last member of valid_keys[] for rte_kvargs_parse( )
>     add RTE_PMD_REGISTER_PARAM_STRING for this feature
> v7:
>     use the macro instead of natural number
>     correct git log message as the EAL parameter is only valid for PF
> v6:
>     fix a small bug when detecting end character of strtoul
> v5:
>     fix git log message and WARNING of coding stype
> v4:
>     use rte_kvargs instead of pervious parsing function;
>     use malloc/free instead of rte_zmalloc/rte_free.
> v3:
>     fix WARNING of coding style issues from checkpatch at dpdk.org
> v2:
>     fix WARNING of coding style issues from checkpatch at dpdk.org
> ---
>  config/common_base             |  1 -
>  doc/guides/nics/i40e.rst       | 12 ++++---
>  drivers/net/i40e/i40e_ethdev.c | 75
> +++++++++++++++++++++++++++++++++++++++---
>  3 files changed, 78 insertions(+), 10 deletions(-)

BTW, I think release notes should be updated for your modifications.