From: Biju Das <biju.das.jz@bp.renesas.com>
To: Sergey Shtylyov <s.shtylyov@omp.ru>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>
Cc: Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@bp.renesas.com>,
Andrew Lunn <andrew@lunn.ch>,
Sergei Shtylyov <sergei.shtylyov@gmail.com>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Adam Ford <aford173@gmail.com>,
Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"linux-renesas-soc@vger.kernel.org"
<linux-renesas-soc@vger.kernel.org>,
Chris Paterson <Chris.Paterson2@renesas.com>,
Biju Das <biju.das@bp.renesas.com>
Subject: RE: [RFC/PATCH 02/18] ravb: Rename the variables "no_ptp_cfg_active" and "ptp_cfg_active"
Date: Thu, 23 Sep 2021 16:35:45 +0000 [thread overview]
Message-ID: <OS0PR01MB59228BE53DE8DB7AA491F03F86A39@OS0PR01MB5922.jpnprd01.prod.outlook.com> (raw)
In-Reply-To: <e54aa4c9-9438-bd99-559a-6aaa3676d733@omp.ru>
Hi Sergei,
Thanks for the feedback.
> -----Original Message-----
> Subject: Re: [RFC/PATCH 02/18] ravb: Rename the variables
> "no_ptp_cfg_active" and "ptp_cfg_active"
>
> On 9/23/21 5:07 PM, Biju Das wrote:
>
> > Rename the variable "no_ptp_cfg_active" with "no_gptp" with inverted
> > checks and "ptp_cfg_active" with "ccc_gac".
>
> That's not exactly rename, no? At least for the 1st case...
This is what we agreed as per last discussion[1].
https://patchwork.kernel.org/project/linux-renesas-soc/patch/20210825070154.14336-5-biju.das.jz@bp.renesas.com/
>
> > There is no functional change.
> >
> > Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
> > Suggested-by: Sergey Shtylyov <s.shtylyov@omp.ru>
> > ---
> > drivers/net/ethernet/renesas/ravb.h | 4 ++--
> > drivers/net/ethernet/renesas/ravb_main.c | 25
> > ++++++++++++------------
> > 2 files changed, 14 insertions(+), 15 deletions(-)
> >
> > diff --git a/drivers/net/ethernet/renesas/ravb.h
> > b/drivers/net/ethernet/renesas/ravb.h
> > index 7363abae6e59..0ce0c13ef8cb 100644
> > --- a/drivers/net/ethernet/renesas/ravb.h
> > +++ b/drivers/net/ethernet/renesas/ravb.h
> > @@ -1000,8 +1000,8 @@ struct ravb_hw_info {
> > unsigned internal_delay:1; /* AVB-DMAC has internal delays */
> > unsigned tx_counters:1; /* E-MAC has TX counters */
> > unsigned multi_irqs:1; /* AVB-DMAC and E-MAC has multiple
> irqs */
> > - unsigned no_ptp_cfg_active:1; /* AVB-DMAC does not support gPTP
> active in config mode */
> > - unsigned ptp_cfg_active:1; /* AVB-DMAC has gPTP support active in
> config mode */
> > + unsigned no_gptp:1; /* AVB-DMAC does not support gPTP
> feature */
>
> Judging on the flag usage (which ensues using logical not in every
> case), I'd suggest to invert this flag and call it 'gptp'...
We have the following cases
Case 1) On R-Car Gen3, gPTP support is active in config mode.
Case 2) On R-Car Gen2, gPTP support is not active in config mode.
Case 3) RZ/G2L does not support the gPTP feature.
And I came up with patches [1] and [2]. Then as per discussion we agreed for gPTP support active in config(ccc_gac) which take care of Case 1, no_gptp which take care of case 3
And the cases not under 1 and 3 falls to 2.
[1]
https://patchwork.kernel.org/project/linux-renesas-soc/patch/20210825070154.14336-4-biju.das.jz@bp.renesas.com/
[2]
https://patchwork.kernel.org/project/linux-renesas-soc/patch/20210825070154.14336-5-biju.das.jz@bp.renesas.com/
So please clear on your proposals to accomodate the 3 use cases as mentioned below.
Case 1) On R-Car Gen3, gPTP support is active in config mode.
Case 2) On R-Car Gen2, gPTP support is not active in config mode.
Case 3) RZ/G2L does not support the gPTP feature.
Regards,
Biju
>
> [...]
>
> MBR, Sergey
next prev parent reply other threads:[~2021-09-23 16:35 UTC|newest]
Thread overview: 79+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-23 14:07 [RFC/PATCH 00/18] Add Gigabit Ethernet driver support Biju Das
2021-09-23 14:07 ` [RFC/PATCH 01/18] ravb: Rename "ravb_set_features_rx_csum" function to "ravb_set_features_rcar" Biju Das
2021-09-27 19:54 ` Sergey Shtylyov
2021-09-23 14:07 ` [RFC/PATCH 02/18] ravb: Rename the variables "no_ptp_cfg_active" and "ptp_cfg_active" Biju Das
2021-09-23 16:07 ` Sergey Shtylyov
2021-09-23 16:35 ` Biju Das [this message]
2021-09-23 17:57 ` Sergey Shtylyov
2021-09-23 18:20 ` Biju Das
2021-09-26 13:34 ` Biju Das
2021-09-23 14:07 ` [RFC/PATCH 03/18] ravb: Initialize GbEthernet dmac Biju Das
2021-09-23 17:41 ` Sergey Shtylyov
2021-09-23 18:42 ` Biju Das
2021-09-23 19:07 ` Sergey Shtylyov
2021-09-23 19:22 ` Biju Das
2021-09-23 19:29 ` Biju Das
2021-09-26 13:38 ` Biju Das
2021-09-23 14:07 ` [RFC/PATCH 04/18] ravb: Enable aligned_tx and tx_counters for RZ/G2L Biju Das
2021-09-23 18:05 ` Sergey Shtylyov
2021-09-23 18:10 ` Sergey Shtylyov
2021-09-23 18:13 ` Biju Das
2021-09-26 13:40 ` Biju Das
2021-09-23 14:08 ` [RFC/PATCH 05/18] ravb: Exclude gPTP feature support " Biju Das
2021-09-23 19:00 ` Sergey Shtylyov
2021-09-23 19:13 ` Biju Das
2021-09-23 19:41 ` Sergey Shtylyov
2021-09-23 19:45 ` Biju Das
2021-09-26 13:48 ` Biju Das
2021-09-23 14:08 ` [RFC/PATCH 06/18] ravb: Add multi_tsrq to struct ravb_hw_info Biju Das
2021-09-23 20:19 ` Sergey Shtylyov
2021-09-24 6:19 ` Biju Das
2021-09-26 13:54 ` Biju Das
2021-09-23 14:08 ` [RFC/PATCH 07/18] ravb: Add magic_pkt " Biju Das
2021-09-23 20:42 ` Sergey Shtylyov
2021-09-24 6:24 ` Biju Das
2021-09-26 13:56 ` Biju Das
2021-09-23 14:08 ` [RFC/PATCH 08/18] ravb: Add mii_rgmii_selection " Biju Das
2021-09-24 19:49 ` Sergey Shtylyov
2021-09-25 6:23 ` Biju Das
2021-09-26 15:49 ` Biju Das
2021-09-23 14:08 ` [RFC/PATCH 09/18] ravb: Add half_duplex " Biju Das
2021-09-24 20:07 ` Sergey Shtylyov
2021-09-25 6:37 ` Biju Das
2021-09-26 15:51 ` Biju Das
2021-09-23 14:08 ` [RFC/PATCH 10/18] ravb: Initialize GbEthernet E-MAC Biju Das
2021-09-24 20:44 ` Sergey Shtylyov
2021-09-25 6:38 ` Biju Das
2021-09-23 14:08 ` [RFC/PATCH 11/18] ravb: Add rx_2k_buffers to struct ravb_hw_info Biju Das
2021-09-24 19:35 ` Sergey Shtylyov
2021-09-26 15:48 ` Biju Das
2021-09-23 14:08 ` [RFC/PATCH 12/18] ravb: Add timestamp " Biju Das
2021-09-25 20:52 ` Sergey Shtylyov
2021-09-26 6:34 ` Biju Das
2021-09-26 16:52 ` Biju Das
2021-09-26 20:45 ` Sergey Shtylyov
2021-09-26 20:48 ` Sergei Shtylyov
2021-09-27 6:10 ` Biju Das
2021-09-27 6:04 ` Biju Das
2021-09-23 14:08 ` [RFC/PATCH 13/18] ravb: Add rx_ring_free function support for GbEthernet Biju Das
2021-09-27 19:28 ` Sergey Shtylyov
2021-09-28 9:24 ` Biju Das
2021-09-23 14:08 ` [RFC/PATCH 14/18] ravb: Add rx_ring_format function " Biju Das
2021-09-27 20:32 ` Sergey Shtylyov
2021-09-29 7:49 ` Biju Das
2021-09-23 14:08 ` [RFC/PATCH 15/18] ravb: Add rx_alloc helper " Biju Das
2021-09-23 14:08 ` [RFC/PATCH 16/18] ravb: Add Packet receive function for Gigabit Ethernet Biju Das
2021-10-01 17:27 ` Sergey Shtylyov
2021-10-04 14:56 ` Biju Das
2021-09-23 14:08 ` [RFC/PATCH 17/18] ravb: Add carrier_counters to struct ravb_hw_info Biju Das
2021-09-28 20:50 ` Sergey Shtylyov
2021-09-23 14:08 ` [RFC/PATCH 18/18] ravb: Add set_feature support for RZ/G2L Biju Das
2021-09-30 20:39 ` Sergey Shtylyov
2021-10-01 6:53 ` Biju Das
2021-10-01 9:13 ` Sergey Shtylyov
2021-10-01 9:26 ` Biju Das
2021-10-01 8:22 ` Biju Das
2021-09-23 15:11 ` [RFC/PATCH 00/18] Add Gigabit Ethernet driver support Sergey Shtylyov
2021-09-23 15:13 ` Sergey Shtylyov
2021-09-23 15:37 ` Jakub Kicinski
2021-09-23 17:43 ` Sergey Shtylyov
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