lkml.org 
[lkml]   [2019]   [Aug]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH -next] net: mlx5: Kconfig: Fix MLX5_CORE_EN dependencies
Date
On Tue, 2019-08-27 at 17:51 +0800, maowenan wrote:
>
> On 2019/8/27 15:24, walter harms wrote:
> >
> > Am 27.08.2019 05:12, schrieb Mao Wenan:
> > > When MLX5_CORE_EN=y and PCI_HYPERV_INTERFACE is not set, below
> > > errors are found:
> > > drivers/net/ethernet/mellanox/mlx5/core/en_main.o: In function
> > > `mlx5e_nic_enable':
> > > en_main.c:(.text+0xb649): undefined reference to
> > > `mlx5e_hv_vhca_stats_create'
> > > drivers/net/ethernet/mellanox/mlx5/core/en_main.o: In function
> > > `mlx5e_nic_disable':
> > > en_main.c:(.text+0xb8c4): undefined reference to
> > > `mlx5e_hv_vhca_stats_destroy'
> > >
> > > This because CONFIG_PCI_HYPERV_INTERFACE is newly introduced by
> > > 'commit 348dd93e40c1
> > > ("PCI: hv: Add a Hyper-V PCI interface driver for software
> > > backchannel interface"),
> > > Fix this by making MLX5_CORE_EN imply PCI_HYPERV_INTERFACE.
> > >
> > > Fixes: cef35af34d6d ("net/mlx5e: Add mlx5e HV VHCA stats agent")
> > > Signed-off-by: Mao Wenan <maowenan@huawei.com>
> > > ---
> > > drivers/net/ethernet/mellanox/mlx5/core/Kconfig | 1 +
> > > 1 file changed, 1 insertion(+)
> > >
> > > diff --git a/drivers/net/ethernet/mellanox/mlx5/core/Kconfig
> > > b/drivers/net/ethernet/mellanox/mlx5/core/Kconfig
> > > index 37fef8c..a6a70ce 100644
> > > --- a/drivers/net/ethernet/mellanox/mlx5/core/Kconfig
> > > +++ b/drivers/net/ethernet/mellanox/mlx5/core/Kconfig
> > > @@ -35,6 +35,7 @@ config MLX5_CORE_EN
> > > depends on IPV6=y || IPV6=n || MLX5_CORE=m
> >
> > OT but ...
> > is that IPV6 needed at all ? can there be something else that yes
> > or no ?

only needed for en_rep.c/en_tc.c which are only compiled when
MLX5_ESWITCH is selected, so actually such condition should be for
MLX5_ESWITCH and not MLX5_CORE_EN

tested with:
MLX5_CORE=y
MLX5_CORE_EN=y
IPV6=m

and removed the dependency.
so if ipv6 is a module but mlx5 is builtin this will happen..

ld: drivers/net/ethernet/mellanox/mlx5/core/en_rep.o: in function
`mlx5e_rep_neigh_update_init_interval':
/home/saeedm/devel/linux/drivers/net/ethernet/mellanox/mlx5/core/en_rep
.c:505: undefined reference to `nd_tbl'
ld: drivers/net/ethernet/mellanox/mlx5/core/en_rep.o: in function
`mlx5e_rep_netevent_event':
/home/saeedm/devel/linux/drivers/net/ethernet/mellanox/mlx5/core/en_rep
.c:946: undefined reference to `nd_tbl'
ld:
/home/saeedm/devel/linux/drivers/net/ethernet/mellanox/mlx5/core/en_rep
.c:919: undefined reference to `nd_tbl'
ld: drivers/net/ethernet/mellanox/mlx5/core/en_tc.o: in function
`mlx5e_tc_update_neigh_used_value':
/home/saeedm/devel/linux/drivers/net/ethernet/mellanox/mlx5/core/en_tc.
c:1497: undefined reference to `nd_tbl'

the problem is that mlx5_core can't be builtin if ipv6 is a module due
to this nd_tbl dependency

I think this is solvable by using ipv6_stub->nd_tbl, instead of
referencing md_tbl directly from mlx5.

>
> If I set IPV6=m, errors are found as below:
> drivers/net/ethernet/mellanox/mlx5/core/main.o: In function
> `mlx5_unload':
> main.c:(.text+0x275): undefined reference to `mlx5_hv_vhca_cleanup'
> drivers/net/ethernet/mellanox/mlx5/core/main.o: In function
> `mlx5_cleanup_once':
> main.c:(.text+0x2e8): undefined reference to `mlx5_hv_vhca_destroy'
> drivers/net/ethernet/mellanox/mlx5/core/main.o: In function
> `mlx5_load_one':
> main.c:(.text+0x23c1): undefined reference to `mlx5_hv_vhca_create'
> main.c:(.text+0x248f): undefined reference to `mlx5_hv_vhca_init'
> main.c:(.text+0x25e0): undefined reference to `mlx5_hv_vhca_cleanup

this is not related, i think there is something wrong with your local
repository.

\
 
 \ /
  Last update: 2019-08-27 23:16    [W:0.055 / U:4.616 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site