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Date:      Sun, 18 Dec 2011 23:01:54 +0000
From:      "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
To:        Marius Strobl <marius@FreeBSD.org>
Cc:        svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org
Subject:   Re: svn commit: r228694 - head/sys/dev/netmap
Message-ID:  <51224283-3DEE-489B-B7AC-61C46FA1CD5F@lists.zabbadoz.net>
In-Reply-To: <201112181748.pBIHms2f019304@svn.freebsd.org>
References:  <201112181748.pBIHms2f019304@svn.freebsd.org>

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On 18. Dec 2011, at 17:48 , Marius Strobl wrote:

> Author: marius
> Date: Sun Dec 18 17:48:54 2011
> New Revision: 228694
> URL: http://svn.freebsd.org/changeset/base/228694
>=20
> Log:
>  Fix compilation on sparc64 by actually supplying the bus_dma_tag_t =
member
>  of the rx_ring to bus_dmamap_sync(9).


Thanks!


> Given that netmap code tries to
>  obtain the bus addresses of netmap buffers via vtophys(9) instead of =
using
>  bus_dma(9) it currently has zero chance of actually working on =
sparc64
>  though (and for that matter f.e. also not with MACs limited to 32-bit =
DMA
>  on x86 machines with more than 4GB of RAM).
>=20
> Modified:
>  head/sys/dev/netmap/if_em_netmap.h
>=20
> Modified: head/sys/dev/netmap/if_em_netmap.h
> =
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D
> --- head/sys/dev/netmap/if_em_netmap.h	Sun Dec 18 17:42:26 2011	=
(r228693)
> +++ head/sys/dev/netmap/if_em_netmap.h	Sun Dec 18 17:48:54 2011	=
(r228694)
> @@ -329,7 +329,7 @@ em_netmap_rxsync(void *a, u_int ring_nr,
> 		if ((curr->status & E1000_RXD_STAT_DD) =3D=3D 0)
> 			break;
> 		ring->slot[j].len =3D le16toh(curr->length);
> -		bus_dmamap_sync(rxr->tag, rxr->rx_buffers[l].map,
> +		bus_dmamap_sync(rxr->rxtag, rxr->rx_buffers[l].map,
> 			BUS_DMASYNC_POSTREAD);
> 		j =3D (j =3D=3D lim) ? 0 : j + 1;
> 		/* make sure next_to_refresh follows next_to_check */

--=20
Bjoern A. Zeeb                                 You have to have visions!
         Stop bit received. Insert coin for new address family.




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