[dpdk-dev] [PATCH] drivers: advertise kmod dependencies in pmdinfo

[Trahe, Fiona]

Hi Oliver,

> -----Original Message-----
> From: Olivier Matz [mailto:olivier.matz at 6wind.com]
> Sent: Thursday, September 15, 2016 3:23 PM
> To: dev at dpdk.org; nhorman at tuxdriver.com
> Cc: thomas.monjalon at 6wind.com; vido at cesnet.cz; Trahe, Fiona
> <fiona.trahe at intel.com>; stephen at networkplumber.org
> Subject: [PATCH] drivers: advertise kmod dependencies in pmdinfo
> 
> Add a new macro DRIVER_REGISTER_KMOD_DEP() that allows a driver to
> declare the list of kernel modules required to run properly.
> 
> Today, most PCI drivers require uio/vfio.
> 
> Signed-off-by: Olivier Matz <olivier.matz at 6wind.com>
> ---
> 
> rfc -> v1:
> - the kmod information can be per-device using a modalias-like
>   pattern
> - change syntax to use '&' and '|' instead of ',' and ':'
> - remove useless prerequisites in kmod lis: no need to
>   specify both uio and uio_pci_generic, only the latter is
>   required
> - update kmod list in szedata2 driver
> - remove kmod list in qat driver: it requires more than just loading
>   a kmod, which is described in documentation
> 
The per-device info is a nice addition to this feature. 
Though for the reasons already described the qat driver dependencies are better 
handled through documentation and scripts.

Acked-by: Fiona Trahe <fiona.trahe at intel.com>