Hi Raslan, PSB
> -----Original Message----- > From: Raslan Darawsheh <rasl...@mellanox.com> > Sent: Thursday, May 14, 2020 11:24 AM > To: Thomas Monjalon <tho...@monjalon.net>; dev@dpdk.org > Cc: Adrian Chiris <adri...@mellanox.com>; Moshe Levi > <mosh...@mellanox.com>; Matan Azrad <ma...@mellanox.com>; Shahaf > Shuler <shah...@mellanox.com>; Slava Ovsiienko > <viachesl...@mellanox.com>; John McNamara > <john.mcnam...@intel.com>; Marko Kovacevic > <marko.kovace...@intel.com> > Subject: RE: [dpdk-dev] [PATCH] doc: add required Linux capabilities in mlx5 > guide > > Hi, > > > -----Original Message----- > > From: dev <dev-boun...@dpdk.org> On Behalf Of Thomas Monjalon > > Sent: Tuesday, March 3, 2020 1:09 AM > > To: dev@dpdk.org > > Cc: Adrian Chiris <adri...@mellanox.com>; Moshe Levi > > <mosh...@mellanox.com>; Matan Azrad <ma...@mellanox.com>; Shahaf > > Shuler <shah...@mellanox.com>; Slava Ovsiienko > > <viachesl...@mellanox.com>; John McNamara > <john.mcnam...@intel.com>; > > Marko Kovacevic <marko.kovace...@intel.com> > > Subject: [dpdk-dev] [PATCH] doc: add required Linux capabilities in > > mlx5 guide > > > > If running DPDK as non-root, some extra capabilities may be required. > > The Mellanox devices, using a bifurcated model with Linux drivers, > > have some specific requirements summarized in mlx5 PMD guide. > > > > Signed-off-by: Thomas Monjalon <tho...@monjalon.net> > Reviewed-by: Raslan Darwsheh <rasl...@mellanox.com> > > --- > > doc/guides/nics/mlx5.rst | 26 ++++++++++++++++++++++++++ > > 1 file changed, 26 insertions(+) > > > > diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst index > > afd11cd830..7650e57dd0 100644 > > --- a/doc/guides/nics/mlx5.rst > > +++ b/doc/guides/nics/mlx5.rst > > @@ -359,6 +359,32 @@ Run-time configuration > > > > - **ethtool** operations on related kernel interfaces also affect the PMD. > > > > +Run as non-root > > +^^^^^^^^^^^^^^^ > > + > > +In order to run as a non-root user, > > +some capabilities must be granted to the application:: > > + > > + setcap cap_sys_admin,cap_net_admin,cap_net_raw,cap_ipc_lock+ep > > <dpdk-app> > > + > > +Below are the reasons of the need for each capability: > > + > > +``cap_sys_admin`` > > + When using physical addresses (PA mode), with Linux >= 4.0, > > + for access to ``/proc/self/pagemap``. > > + > > +``cap_net_admin`` > > + For MTU and link state modifications It more than that like change mac address . maybe better to write for interface configuration You can see the full list in [1] look for CAP_NET_ADMIN [1] - http://man7.org/linux/man-pages/man7/capabilities.7.html . > > + > > +``cap_net_raw`` > > + For raw ethernet queue allocation through kernel driver. Maybe can you add a note that for containers the net_raw is enabled by default see [1] and you don't need to specify it. [1] - https://docs.docker.com/engine/reference/run/#runtime-privilege-and-linux-capabilities > > + > > +``cap_ipc_lock`` > > + For DMA memory pinning. > > + > > +Driver options > > +^^^^^^^^^^^^^^ > > + > > - ``rxq_cqe_comp_en`` parameter [int] > > > > A nonzero value enables the compression of CQE on RX side. This > > feature > > -- > > 2.25.1 > > > Patch applied to next-net-mlx, > > Kindest regards, > Raslan Darawsheh
