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Date: Sun, 9 Jul 2017 20:42:21 +0200
From: Marius Strobl <marius@FreeBSD.org>
To: Warner Losh <imp@FreeBSD.org>
Cc: src-committers@freebsd.org, svn-src-all@freebsd.org,
 svn-src-head@freebsd.org
Subject: Re: svn commit: r320844 - in head: etc/mtree include lib/libcam
 sys/amd64/conf sys/arm/broadcom/bcm2835 sys/arm/conf sys/arm/ti sys/cam
 sys/cam/mmc sys/cam/scsi sys/conf sys/dev/mmc sys/dev/sdhci sys/m...
Message-ID: <20170709184221.GB38352@alchemy.franken.de>
References: <201707091657.v69GvOar096942@repo.freebsd.org>
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On Sun, Jul 09, 2017 at 04:57:24PM +0000, Warner Losh wrote:
> Author: imp
> Date: Sun Jul  9 16:57:24 2017
> New Revision: 320844
> URL: https://svnweb.freebsd.org/changeset/base/320844
> 
> Log:
>   An MMC/SD/SDIO stack using CAM
>   
>   Implement the MMC/SD/SDIO protocol within a CAM framework. CAM's
>   flexible queueing will make it easier to write non-storage drivers
>   than the legacy stack. SDIO drivers from both the kernel and as
>   userland daemons are possible, though much of that functionality will
>   come later.

At least with a non-MMCCAM kernel, with this revision in place I get
an endless storm of "unexpected" SDHCI_INT_CARD_INT interrupts during
boot. Apparently this is due to the fact that sdhci(4) now enables
these interrupts, but sdhci_generic_intr() neither actually handles
them nor clears them from intmask.

Btw., were mmc.ko and mmcsd.ko disconnected on purpose with this commit?

Marius