Date: Tue, 25 Apr 1995 20:33:56 -0700 (PDT) From: Tom Samplonius <tom@haven.uniserve.com> To: "Rodney W. Grimes" <rgrimes@gndrsh.aac.dev.com> Cc: hackers@FreeBSD.org Subject: Re: Buslogic? Message-ID: <Pine.BSF.3.91.950425203107.18088B-100000@haven.uniserve.com> In-Reply-To: <199504260104.SAA00757@gndrsh.aac.dev.com>
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On Tue, 25 Apr 1995, Rodney W. Grimes wrote:
> This is from the followind data structure at line 330 of bt742.c:
>
> struct bt_ext_info {
> u_char bus_type; /* Host adapter bus type */
> u_char bios_addr; /* Bios Address-Not used */
> u_short max_seg; /* Max segment List */
> u_char num_mbx; /* Number of mailbox */
> int32 mbx_base; /* mailbox base address */
> struct {
> u_char resv1:2; /* ??? */
> u_char maxsync:1; /* ON: 10MB/s , OFF: 5MB/s */
> u_char resv2:2; /* ??? */
> u_char sync:1; /* ON: Sync, OFF: async ONLY!! */
> >>>>> HERE <<<<<< this bit is 0 for your controller for some reason :-(.
>
> u_char resv3:2; /* ??? */
> } s;
> u_char firmid[3]; /* Firmware ver. & rev. w/o last char */
> };
Hmm, I'll see if I can build a kernel tonight that forces it on, and
use sync whether the BT946C likes it or not. The worst that could happen
is badly managled filesystems. There could be a problem with the ROM
version that I have (or perhaps a new "feature").
Tom
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