Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753598AbbK3Lwn (ORCPT ); Mon, 30 Nov 2015 06:52:43 -0500 Received: from kvm5.telegraphics.com.au ([98.124.60.144]:33080 "EHLO kvm5.telegraphics.com.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751116AbbK3Lwk (ORCPT ); Mon, 30 Nov 2015 06:52:40 -0500 Date: Mon, 30 Nov 2015 22:52:32 +1100 (AEDT) From: Finn Thain To: Ondrej Zary cc: Michael Schmitz , linux-m68k@vger.kernel.org, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH 74/71] ncr5380: Enable PDMA for NCR53C400A In-Reply-To: <1448789980-30094-2-git-send-email-linux@rainbow-software.org> Message-ID: References: <20151118083455.331768508@telegraphics.com.au> <1448789980-30094-2-git-send-email-linux@rainbow-software.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2211 Lines: 63 On Sun, 29 Nov 2015, Ondrej Zary wrote: > Add I/O register mapping for NCR53C400A and enable PDMA mode to > improve performance and fix non-working IRQ. > > Tested with HP C2502 (and user-space enabler). > > Signed-off-by: Ondrej Zary > --- > drivers/scsi/g_NCR5380.c | 11 ++++++++++- > 1 file changed, 10 insertions(+), 1 deletion(-) > > diff --git a/drivers/scsi/g_NCR5380.c b/drivers/scsi/g_NCR5380.c > index ce444da..c3abe48 100644 > --- a/drivers/scsi/g_NCR5380.c > +++ b/drivers/scsi/g_NCR5380.c > @@ -324,7 +324,10 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt) > #endif > break; > case BOARD_NCR53C400A: > + flags = FLAG_NO_DMA_FIXUP; > +#ifndef PSEUDO_DMA > flags = FLAG_NO_PSEUDO_DMA; > +#endif FLAG_NO_PSEUDO_DMA is not tested unless defined(PSEUDO_DMA), so it shouldn't be set here. I know I made the same mistake in patch 8; it will be fixed in the next submission. -- > ports = ncr_53c400a_ports; > break; > case BOARD_DTC3181E: > @@ -412,6 +415,11 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt) > hostdata->c400_blk_cnt = 1; > hostdata->c400_host_buf = 4; > } > + if (overrides[current_override].board == BOARD_NCR53C400A) { > + hostdata->c400_ctl_status = 9; > + hostdata->c400_blk_cnt = 10; > + hostdata->c400_host_buf = 8; > + } > #else > instance->base = overrides[current_override].NCR5380_map_name; > hostdata->iomem = iomem; > @@ -425,7 +433,8 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt) > if (NCR5380_init(instance, flags)) > goto out_unregister; > > - if (overrides[current_override].board == BOARD_NCR53C400) > + if (overrides[current_override].board == BOARD_NCR53C400 || > + overrides[current_override].board == BOARD_NCR53C400A) > NCR5380_write(hostdata->c400_ctl_status, CSR_BASE); > > NCR5380_maybe_reset_bus(instance); > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/