Subject: Re: Virtex TEMAC ping -s 10000 host, is it working?

From: Lorenz Kolb <[email-masked]>
Date: Mon, 19 Nov 2007 23:45:14 -0800 (PST)

alex_snippet wrote:
> 
> 
> It's interesting to see some info from your design files,  PLB_TEMAC &
> HardTEMAC description from mhs,
> and kernel .config network section.
> 

.mhs

> <snip>
> BEGIN hard_temac
>  PARAMETER INSTANCE = hard_temac_0
>  PARAMETER HW_VER = 3.00.a
>  BUS_INTERFACE V4EMACDST0 = plb_temac_0_V4EMACSRC
>  PORT MII_TX_CLK_0 = fpga_0_Hard_Temac_0_MII_TX_CLK_0
>  PORT GMII_TXD_0 = fpga_0_Hard_Temac_0_GMII_TXD_0
>  PORT GMII_TX_EN_0 = fpga_0_Hard_Temac_0_GMII_TX_EN_0
>  PORT GMII_TX_ER_0 = fpga_0_Hard_Temac_0_GMII_TX_ER_0
>  PORT GMII_TX_CLK_0 = fpga_0_Hard_Temac_0_GMII_TX_CLK_0
>  PORT GMII_RXD_0 = fpga_0_Hard_Temac_0_GMII_RXD_0
>  PORT GMII_RX_DV_0 = fpga_0_Hard_Temac_0_GMII_RX_DV_0
>  PORT GMII_RX_ER_0 = fpga_0_Hard_Temac_0_GMII_RX_ER_0
>  PORT GMII_RX_CLK_0 = fpga_0_Hard_Temac_0_GMII_RX_CLK_0
>  PORT MDC_0 = fpga_0_Hard_Temac_0_MDC_0
>  PORT MDIO_0 = fpga_0_Hard_Temac_0_MDIO_0
>  PORT RESET = Emac_Reset_s
>  PORT GTX_CLK_0 = temac_0_clk_s
>  PORT REFCLK = sys_clk
> END
> 
> BEGIN plb_temac
>  PARAMETER INSTANCE = plb_temac_0
>  PARAMETER HW_VER = 3.00.a
>  PARAMETER C_MAC_FIFO_DEPTH = 64
>  PARAMETER C_RX_DRE_TYPE = 0
>  PARAMETER C_TX_DRE_TYPE = 0
>  PARAMETER C_DMA_TYPE = 1
>  PARAMETER C_PLB_CLK_PERIOD_PS = 10000
>  PARAMETER C_BASEADDR = 0x40000000
>  PARAMETER C_HIGHADDR = 0x4000FFFF
>  BUS_INTERFACE V4EMACSRC = plb_temac_0_V4EMACSRC
>  BUS_INTERFACE MSPLB = plb_v34_0
>  PORT Emac_Reset = Emac_Reset_s
>  PORT PhyResetN = fpga_0_TriMode_MAC_GMII_PhyResetN
>  PORT IP2INTC_Irpt = plb_temac_0_IP2INTC_Irpt
> END
> <snap>
> 

.config

> <snip>
> #
> # Networking
> #
> CONFIG_NET=y
> 
> #
> # Networking options
> #
> CONFIG_PACKET=y
> CONFIG_PACKET_MMAP=y
> CONFIG_UNIX=y
> CONFIG_INET=y
> CONFIG_IP_FIB_HASH=y
> CONFIG_TCP_CONG_CUBIC=y
> CONFIG_DEFAULT_TCP_CONG="cubic"
> <snap>
> 

We use the Temac driver from Grant's tree.
Nevertheless we changed the auto-negotiation code, as we had problem with
the default code when using the same code in U-Boot.
I have attached our auto-negotiation patch (nevertheless the old
auto-negotiation worked fine with the linux kernel, the main reason we
patched that is to hold the code base to maintain minimal).
http://www.nabble.com/file/p13852281/0018-TEMAC-changed-renegotiation-function-to-ESIC-U-Boo.patch
0018-TEMAC-changed-renegotiation-function-to-ESIC-U-Boo.patch 

alex_snippet wrote:
> 
> The biggest problem that i actually do not understand what kind of problem
> is it, hardware or software or configuration.
> 

Regards,

--
Lorenz Kolb
Embedded specialist
ESIC Solutions
San Jose, CA
Neu-Ulm, Germany
-- 
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