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 08/18] ravb: Add mii_rgmii_selection to struct ravb_hw_info
Date: Sat, 25 Sep 2021 06:23:37 +0000 [thread overview]
Message-ID: <OS0PR01MB5922C9EDAE62B0750D84354A86A59@OS0PR01MB5922.jpnprd01.prod.outlook.com> (raw)
In-Reply-To: <8b92e5f8-2f78-b64c-8356-1e43034ba622@omp.ru>
Hi Sergei,
Thanks for the feedback.
> Subject: Re: [RFC/PATCH 08/18] ravb: Add mii_rgmii_selection to struct
> ravb_hw_info
>
> On 9/23/21 5:08 PM, Biju Das wrote:
>
> > E-MAC on RZ/G2L supports MII/RGMII selection. Add a
> > mii_rgmii_selection feature bit to struct ravb_hw_info to support this
> > for RZ/G2L.
> > Currently only selecting RGMII is supported.
> >
> > Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
> > ---
> > drivers/net/ethernet/renesas/ravb.h | 17 +++++++++++++++++
> > drivers/net/ethernet/renesas/ravb_main.c | 6 ++++++
> > 2 files changed, 23 insertions(+)
> >
> > diff --git a/drivers/net/ethernet/renesas/ravb.h
> > b/drivers/net/ethernet/renesas/ravb.h
> > index bce480fadb91..dfaf3121da44 100644
> > --- a/drivers/net/ethernet/renesas/ravb.h
> > +++ b/drivers/net/ethernet/renesas/ravb.h
> [...]
> > @@ -951,6 +953,20 @@ enum RAVB_QUEUE {
> > RAVB_NC, /* Network Control Queue */
> > };
> >
> > +enum CXR31_BIT {
> > + CXR31_SEL_LINK0 = 0x00000001,
> > + CXR31_SEL_LINK1 = 0x00000008,
> > +};
> > +
> > +enum CXR35_BIT {
> > + CXR35_SEL_MODIN = 0x00000100,
> > +};
> > +
> > +enum CSR0_BIT {
> > + CSR0_TPE = 0x00000010,
> > + CSR0_RPE = 0x00000020,
> > +};
>
> I don't see those used? What is CSR0?
OK, This has to be part of later patch for emac_init. CSR is checksum operating mode register in TOE.
>
> [...]
> > @@ -1008,6 +1024,7 @@ struct ravb_hw_info {
> > unsigned ccc_gac:1; /* AVB-DMAC has gPTP support active in
> config mode */
> > unsigned multi_tsrq:1; /* AVB-DMAC has MULTI TSRQ */
> > unsigned magic_pkt:1; /* E-MAC supports magic packet
> detection */
> > + unsigned mii_rgmii_selection:1; /* E-MAC supports mii/rgmii
> selection */
>
> Perhaps just 'mii_rgmii_sel'?
OK.
>
> [...]
> > diff --git a/drivers/net/ethernet/renesas/ravb_main.c
> > b/drivers/net/ethernet/renesas/ravb_main.c
> > index 529364d8f7fb..5d18681582b9 100644
> > --- a/drivers/net/ethernet/renesas/ravb_main.c
> > +++ b/drivers/net/ethernet/renesas/ravb_main.c
> [...]
> > @@ -1173,6 +1174,10 @@ static int ravb_phy_init(struct net_device *ndev)
> > netdev_info(ndev, "limited PHY to 100Mbit/s\n");
> > }
> >
> > + if (info->mii_rgmii_selection &&
> > + priv->phy_interface == PHY_INTERFACE_MODE_RGMII_ID)
>
> Not MII?
Currently only RGMII supported, see the commit message.
>
> > + ravb_write(ndev, ravb_read(ndev, CXR35) | CXR35_SEL_MODIN,
> CXR35);
>
> We have ravb_mnodify() for that...
>
> > +
> > /* 10BASE, Pause and Asym Pause is not supported */
> > phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_10baseT_Half_BIT);
> > phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_10baseT_Full_BIT);
> > @@ -2132,6 +2137,7 @@ static const struct ravb_hw_info rgeth_hw_info = {
> > .aligned_tx = 1,
> > .tx_counters = 1,
> > .no_gptp = 1,
> > + .mii_rgmii_selection = 1,
>
> I don't see where we handle MII?
See the commit message. "Currently only selecting RGMII is supported."
We have a plan to support this at later.
Regards,
Biju
>
> [...]
>
> MBR, Sergey
next prev parent reply other threads:[~2021-09-25 6:23 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
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 [this message]
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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