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From: Thomas Monjalon <thomas@monjalon.net>
To: David Marchand <david.marchand@redhat.com>
Cc: dev <dev@dpdk.org>, Jerin Jacob Kollanukkaran <jerinj@marvell.com>,
 Bruce Richardson <bruce.richardson@intel.com>,
 "Ruifeng Wang (Arm Technology China)" <ruifeng.wang@arm.com>,
 Jan Viktorin <viktorin@rehivetech.com>,
 David Christensen <drc@linux.vnet.ibm.com>, "Ananyev,
 Konstantin" <konstantin.ananyev@intel.com>
Date: Wed, 07 Oct 2020 12:06:13 +0200
Message-ID: <1639188.Are77gBJog@thomas>
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Subject: Re: [dpdk-dev] [PATCH] maintainers: improve coverage of
	arch-specific files
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07/10/2020 09:44, David Marchand:
> On Tue, Oct 6, 2020 at 10:23 PM Thomas Monjalon <thomas@monjalon.net> wrote:
> >
> > The sub-directories of config/ are maintained by
> > different architecture maintainers.
> >
> > Some wildcards are used to describe the lib and drivers files
> > which are specific to some architectures.
> 
> I noticed "some" misses, see below.
> 
> >
> > The EAL Arm files have split responsibilities depending on 32/64 suffix,
> > and the common files are shared between Armv7 and Armv8 sections.
> >
> > Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
> > ---
> >  MAINTAINERS | 23 +++++++++++------------
> >  1 file changed, 11 insertions(+), 12 deletions(-)
> >
> > diff --git a/MAINTAINERS b/MAINTAINERS
> > index 75a17d51c0..349fc9c38a 100644
> > --- a/MAINTAINERS
> > +++ b/MAINTAINERS
> > @@ -256,32 +256,31 @@ F: app/test/test_rand_perf.c
> >  ARM v7
> >  M: Jan Viktorin <viktorin@rehivetech.com>
> >  M: Ruifeng Wang <ruifeng.wang@arm.com>
> > +F: config/arm/
> >  F: lib/librte_eal/arm/
> > +X: lib/librte_eal/arm/include/*_64.h
> >
> >  ARM v8
> >  M: Jerin Jacob <jerinj@marvell.com>
> >  M: Ruifeng Wang <ruifeng.wang@arm.com>
> > -F: lib/librte_eal/arm/include/*_64.h
> > -F: lib/librte_net/net_crc_neon.h
> > -F: lib/librte_acl/acl_run_neon.*
> > -F: lib/librte_bpf/bpf_jit_arm64.c
> > -F: lib/librte_lpm/rte_lpm_neon.h
> > -F: lib/librte_hash/rte*_arm64.h
> > -F: lib/librte_efd/rte*_arm64.h
> > -F: lib/librte_table/rte*_arm64.h
> > -F: drivers/net/ixgbe/ixgbe_rxtx_vec_neon.c
> > -F: drivers/net/i40e/i40e_rxtx_vec_neon.c
> > -F: drivers/net/virtio/virtio_rxtx_simple_neon.c
> > +F: config/arm/
> > +F: lib/librte_eal/arm/
> > +X: lib/librte_eal/arm/include/*_32.h
> > +F: lib/*/*_neon.*
> > +F: lib/*/*_arm64.*
> > +F: drivers/*/*/*_neon.*
> 
> app and examples directory are not caught in this:
> 
> ./lib/librte_net/net_crc_neon.h
> ./lib/librte_acl/acl_run_neon.h
> ./lib/librte_acl/acl_run_neon.c
> ./lib/librte_lpm/rte_lpm_neon.h
> ./lib/librte_node/ip4_lookup_neon.h
> ./examples/l3fwd/l3fwd_lpm_neon.h
> ./examples/l3fwd/l3fwd_em_hlm_neon.h
> ./examples/l3fwd/l3fwd_neon.h
> ./app/test-pmd/macswap_neon.h
> ./drivers/net/hns3/hns3_rxtx_vec_neon.h
> ./drivers/net/bnxt/bnxt_rxtx_vec_neon.c
> ./drivers/net/mlx5/mlx5_rxtx_vec_neon.h
> ./drivers/net/virtio/virtio_rxtx_simple_neon.c
> ./drivers/net/ixgbe/ixgbe_rxtx_vec_neon.c
> ./drivers/net/i40e/i40e_rxtx_vec_neon.c
> 
> Can we use a wildcard at dpdk root?
> */*/*_neon.*
> 
> The drivers/*/*/*_neon.* entry would still be needed though.
> 
> 
> >
> >  IBM POWER (alpha)
> >  M: David Christensen <drc@linux.vnet.ibm.com>
> > +F: config/ppc/
> >  F: lib/librte_eal/ppc/
> > -F: drivers/net/i40e/i40e_rxtx_vec_altivec.c
> > +F: drivers/*/*/*_altivec.*
> >  F: examples/l3fwd/*altivec.h
> 
> Idem neon, lib files missing.
> 
> ./lib/librte_eal/ppc/include/rte_altivec.h
> ./lib/librte_acl/acl_run_altivec.c
> ./lib/librte_acl/acl_run_altivec.h
> ./lib/librte_lpm/rte_lpm_altivec.h
> ./examples/l3fwd/l3fwd_altivec.h
> ./examples/l3fwd/l3fwd_lpm_altivec.h
> ./drivers/net/mlx5/mlx5_rxtx_vec_altivec.h
> ./drivers/net/virtio/virtio_rxtx_simple_altivec.c
> ./drivers/net/i40e/i40e_rxtx_vec_altivec.c
> 
> 
> >
> >  Intel x86
> >  M: Bruce Richardson <bruce.richardson@intel.com>
> >  M: Konstantin Ananyev <konstantin.ananyev@intel.com>
> > +F: config/x86/
> >  F: lib/librte_eal/x86/
> 
> Nothing for avx/sse ?

I was not extending the scope too much.
I think you're right, we can go further in apps and x86-specific files.