netdev - Re: [PATCH mlx5-next 4/5] net/mlx5: Introduce TLS TX offload hardware bits and structures

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Date:   Tue, 9 Jul 2019 20:54:58 +0000
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     "saeedm@....mellanox.co.il" <saeedm@....mellanox.co.il>,
        "leon@...nel.org" <leon@...nel.org>
CC:     Eran Ben Elisha <eranbe@...lanox.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        Tariq Toukan <tariqt@...lanox.com>
Subject: Re: [PATCH mlx5-next 4/5] net/mlx5: Introduce TLS TX offload hardware
 bits and structures

On Thu, 2019-07-04 at 21:21 +0300, Leon Romanovsky wrote:
> On Thu, Jul 04, 2019 at 01:21:04PM -0400, Saeed Mahameed wrote:
> > On Thu, Jul 4, 2019 at 1:15 PM Leon Romanovsky <leon@...nel.org>
> > wrote:
> > > On Thu, Jul 04, 2019 at 01:06:58PM -0400, Saeed Mahameed wrote:
> > > > On Wed, Jul 3, 2019 at 5:27 AM <leon@...nel.org> wrote:
> > > > > On Wed, Jul 03, 2019 at 07:39:32AM +0000, Saeed Mahameed
> > > > > wrote:
> > > > > > From: Eran Ben Elisha <eranbe@...lanox.com>
> > > > > > 
> > > > > > Add TLS offload related IFC structs, layouts and
> > > > > > enumerations.
> > > > > > 
> > > > > > Signed-off-by: Eran Ben Elisha <eranbe@...lanox.com>
> > > > > > Signed-off-by: Tariq Toukan <tariqt@...lanox.com>
> > > > > > Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
> > > > > > ---
> > > > > >  include/linux/mlx5/device.h   |  14 +++++
> > > > > >  include/linux/mlx5/mlx5_ifc.h | 104
> > > > > > ++++++++++++++++++++++++++++++++--
> > > > > >  2 files changed, 114 insertions(+), 4 deletions(-)
> > > > > 
> > > > > <...>
> > > > > 
> > > > > > @@ -2725,7 +2739,8 @@ struct mlx5_ifc_traffic_counter_bits
> > > > > > {
> > > > > > 
> > > > > >  struct mlx5_ifc_tisc_bits {
> > > > > >       u8         strict_lag_tx_port_affinity[0x1];
> > > > > > -     u8         reserved_at_1[0x3];
> > > > > > +     u8         tls_en[0x1];
> > > > > > +     u8         reserved_at_1[0x2];
> > > > > 
> > > > > It should be reserved_at_2.
> > > > > 
> > > > 
> > > > it should be at_1.
> > > 
> > > Why? See mlx5_ifc_flow_table_prop_layout_bits,
> > > mlx5_ifc_roce_cap_bits, e.t.c.
> > > 
> > 
> > they are all at_1 .. so i don't really understand what you want
> > from me,
> > Leon the code is good, please double check you comments..
> 
> Saeed,
> 
> reserved_at_1 should be renamed to be reserved_at_2.
> 
> strict_lag_tx_port_affinity[0x1] + tls_en[0x1] = 0x2
> 

Ok now it is clear, i trusted the developer on this one :)
anyway you have to admit that you mislead me with your examples:
mx5_ifc_flow_table_prop_layout_bits and mlx5_ifc_roce_cap_bits, they
both are fine so i though this was fine too.

I will fix it up.

Thanks,
Saeed.

> > > Thanks
> > > 
> > > > > Thanks