RE: [PATCH net-next v2 13/14] ravb: Update EMAC configuration mode comment

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Sergey,

> -----Original Message-----
> From: Sergei Shtylyov <sergei.shtylyov@xxxxxxxxx>
> Sent: 10 October 2021 10:28
> To: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>; David S. Miller
> <davem@xxxxxxxxxxxxx>; Jakub Kicinski <kuba@xxxxxxxxxx>
> Cc: Sergey Shtylyov <s.shtylyov@xxxxxx>; Geert Uytterhoeven
> <geert+renesas@xxxxxxxxx>; Sergey Shtylyov <s.shtylyov@xxxxxxxxxxxx>; Adam
> Ford <aford173@xxxxxxxxx>; Andrew Lunn <andrew@xxxxxxx>; Yuusuke Ashizuka
> <ashiduka@xxxxxxxxxxx>; Yoshihiro Shimoda
> <yoshihiro.shimoda.uh@xxxxxxxxxxx>; netdev@xxxxxxxxxxxxxxx; linux-renesas-
> soc@xxxxxxxxxxxxxxx; Chris Paterson <Chris.Paterson2@xxxxxxxxxxx>; Biju
> Das <biju.das@xxxxxxxxxxxxxx>; Prabhakar Mahadev Lad <prabhakar.mahadev-
> lad.rj@xxxxxxxxxxxxxx>
> Subject: Re: [PATCH net-next v2 13/14] ravb: Update EMAC configuration
> mode comment
> 
> On 10.10.2021 10:29, Biju Das wrote:
> 
> > Update EMAC configuration mode comment from "PAUSE prohibition"
> > to "EMAC Mode: PAUSE prohibition; Duplex; TX; RX; CRC Pass Through;
> > Promiscuous".
> >
> > Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
> > Suggested-by: Sergey Shtylyov <s.shtylyov@xxxxxx>
> > ---
> > v1->v2:
> >   * No change
> > V1:
> >   * New patch.
> > ---
> >   drivers/net/ethernet/renesas/ravb_main.c | 2 +-
> >   1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/net/ethernet/renesas/ravb_main.c
> > b/drivers/net/ethernet/renesas/ravb_main.c
> > index 9a770a05c017..b78aca235c37 100644
> > --- a/drivers/net/ethernet/renesas/ravb_main.c
> > +++ b/drivers/net/ethernet/renesas/ravb_main.c
> > @@ -519,7 +519,7 @@ static void ravb_emac_init_gbeth(struct net_device
> *ndev)
> >   	/* Receive frame limit set register */
> >   	ravb_write(ndev, GBETH_RX_BUFF_MAX + ETH_FCS_LEN, RFLR);
> >
> > -	/* PAUSE prohibition */
> > +	/* EMAC Mode: PAUSE prohibition; Duplex; TX; RX; CRC Pass Through;
> > +Promiscuous */
> 
>     Promiscuous mode, really? Why?!

This is TOE related and is recommendation from BSP/HW team. If you think it is wrong.
I can take this out. Please let me know. Currently the board is booting and everything works without issues.

The meaning of promiscuous in H/W manual as follows.

Promiscuous Mode
1: All the frames except for PAUSE frame are received. Self-addressed unicast,
different address unicast, multicast, and broadcast frames are all transferred to
TOE. PAUSE frame reception is controlled by PFR bit.
0: Self-addressed unicast, multicast, and broadcast frames are received, then
transferred to TOE.

Regards,
Biju

> 
> >   	ravb_write(ndev, ECMR_ZPF | ((priv->duplex > 0) ? ECMR_DM : 0) |
> >   			 ECMR_TE | ECMR_RE | ECMR_RCPT |
> >   			 ECMR_TXF | ECMR_RXF | ECMR_PRM, ECMR);
> 
> MBR, Sergey




[Index of Archives]     [Linux Samsung SOC]     [Linux Wireless]     [Linux Kernel]     [ATH6KL]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Samba]     [Device Mapper]

  Powered by Linux