[ofa-general] Memory registration limit of 16GB with Chelsio

[pandit ib]

Thanks Steve.

As you suggested, that increased the limit to 32GBytes.

Cheers,

Ranjit


On Tue, Jul 14, 2009 at 10:20 AM, Steve Wise<swise at opengridcomputing.com> wrote:
> You could try something like this.  This removes the ISCSI and TOE/DDP
> memory usage, and bumps the PBL memory up to twice what it was.
>
> (this is untested).
>
> Steve.
>
> ----
>
> --- drivers/net/cxgb3/t3_hw.c.org    2009-07-14 12:14:45.000000000 -0500
> +++ drivers/net/cxgb3/t3_hw.c    2009-07-14 12:16:32.000000000 -0500
> @@ -3084,13 +3084,13 @@ static void ulp_config(struct adapter *a
> {
>    unsigned int m = p->chan_rx_size;
>
> -    ulp_region(adap, ISCSI, m, p->chan_rx_size / 8);
> -    ulp_region(adap, TDDP, m, p->chan_rx_size / 8);
> +    ulp_region(adap, ISCSI, m, 0);
> +    ulp_region(adap, TDDP, m, 0);
>    ulptx_region(adap, TPT, m, p->chan_rx_size / 4);
>    ulp_region(adap, STAG, m, p->chan_rx_size / 4);
>    ulp_region(adap, RQ, m, p->chan_rx_size / 4);
> -    ulptx_region(adap, PBL, m, p->chan_rx_size / 4);
> -    ulp_region(adap, PBL, m, p->chan_rx_size / 4);
> +    ulptx_region(adap, PBL, m, p->chan_rx_size / 2);
> +    ulp_region(adap, PBL, m, p->chan_rx_size / 2);
>    t3_write_reg(adap, A_ULPRX_TDDP_TAGMASK, 0xffffffff);
> }
>
>