From mboxrd@z Thu Jan 1 00:00:00 1970 From: Finn Thain Subject: Re: Status of the FB drivers on m68k Date: Sat, 14 Oct 2017 13:23:44 +1100 (AEDT) Message-ID: References: <2fd42624-7128-81e5-db7b-e7eed3eaa50c@physik.fu-berlin.de> <90f7b321-207c-fd6d-92ae-f415a7fcf384@physik.fu-berlin.de> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Return-path: Received: from kvm5.telegraphics.com.au ([98.124.60.144]:46202 "EHLO kvm5.telegraphics.com.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752072AbdJNCXm (ORCPT ); Fri, 13 Oct 2017 22:23:42 -0400 In-Reply-To: Sender: linux-m68k-owner@vger.kernel.org List-Id: linux-m68k@vger.kernel.org To: Michael Schmitz Cc: John Paul Adrian Glaubitz , Geert Uytterhoeven , Linux/m68k , Debian m68k On Sat, 14 Oct 2017, Michael Schmitz wrote: > > - Michael Schmitz' ESP driver fixes for the Cyberstorm SCSI > > Finn's fixes actually, and no guarantee what I have in mind will > actually work. > Just to clarify, Michael and I did reach a solution (i.e. don't attempt 2-byte DMA transfers) after we kicked around various theories for years, and tested some of them with Stan's help, and fixed some mac_esp and esp_scsi bugs along the way. But someone still has to write the code for zorro_esp. The code is easily adapted from mac_esp, now that mac_esp works properly, since you only have to implement the the transfer_size < FIFO_SIZE case or even just the write != 0 case. I can help with this patch if need be. --