Re: esp_scsi, was Re: Modified Linux 4.1.20 (mac+scsi) on Quadra 660av

2016-10-31 Thread Finn Thain
On Mon, 31 Oct 2016, Michael Schmitz wrote: > Am 30.10.2016 um 18:52 schrieb Finn Thain: > > > > On Sun, 30 Oct 2016, Michael Schmitz wrote: > > > > > but what makes the driver work with most disks but fail with some? > > > Different SCSI command set supported by the disks? > > > > Anything t

Re: esp_scsi, was Re: Modified Linux 4.1.20 (mac+scsi) on Quadra 660av

2016-10-31 Thread Michael Schmitz
Hi Geert, brain fade. sorry. Meant to say - depending on chip revision bit 3 takes a different semantics. And yes, this is getting a wee bit technical. I just don't think we're close to anything fit for review on linux-scsi. Cheers, Mchael On Mon, Oct 31, 2016 at 8:48 PM, Geert Uytterhoeven

Re: esp_scsi, was Re: Modified Linux 4.1.20 (mac+scsi) on Quadra 660av

2016-10-31 Thread Geert Uytterhoeven
On Mon, Oct 31, 2016 at 8:40 AM, Michael Schmitz wrote: > What chip revision is this doc for? As far as I can make out, it should > be fas100a? The esp_scsi.h comments suggest the tagged queuing bit is > for revisions > fas236. The chips used on Macs were probably esp236 or > fas236? Depending on

Re: esp_scsi, was Re: Modified Linux 4.1.20 (mac+scsi) on Quadra 660av

2016-10-31 Thread Michael Schmitz
Hi Finn, Am 30.10.2016 um 18:52 schrieb Finn Thain: > > On Sun, 30 Oct 2016, Michael Schmitz wrote: > >> but what makes the driver work with most disks but fail with some? >> Different SCSI command set supported by the disks? > > Anything that would inhibit disconnection/reselection should avo

Re: esp_scsi, was Re: Modified Linux 4.1.20 (mac+scsi) on Quadra 660av

2016-10-29 Thread Finn Thain
On Sun, 30 Oct 2016, Michael Schmitz wrote: > but what makes the driver work with most disks but fail with some? > Different SCSI command set supported by the disks? Anything that would inhibit disconnection/reselection should avoid the bug. (BTW ISTR that my SCSI2SD never disconnects a comman

Re: esp_scsi, was Re: Modified Linux 4.1.20 (mac+scsi) on Quadra 660av

2016-10-29 Thread Michael Schmitz
Hi Finn, >> >> the problem with trying to read two tag bytes does sound familiar - I >> believe we ran into that one (or a similar one) while trying to revive >> the Amiga ESP drivers. >> > > That's intriguing. I hadn't realised that those zorro_esp discussions on > the mailing lists (linked b

esp_scsi, was Re: Modified Linux 4.1.20 (mac+scsi) on Quadra 660av

2016-10-27 Thread Finn Thain
Fri, 28 Oct 2016 14:48:47 +1100 (AEDT) On Thu, 27 Oct 2016, Michael Schmitz wrote: > Am 03.08.2016 um 16:16 schrieb Finn Thain: > > > > On Tue, 2 Aug 2016, Mac User wrote: > > > > > > Please send pictures. You can use the kernel parameter > > > > "fbcon=font:ProFont6x11" to get more text on the