diff options
| author | Jason J. Herne <jjherne@linux.ibm.com> | 2019-04-04 10:34:29 -0400 |
|---|---|---|
| committer | Thomas Huth <thuth@redhat.com> | 2019-04-12 12:40:35 +0200 |
| commit | 930072d2bf30986e57dac5c5945a32492f288944 (patch) | |
| tree | 1b4a3811d18a01fc889f291f34cb644ef771e82e /pc-bios | |
| parent | 86c58705bb186cfa73a03851047da2c2c37b9418 (diff) | |
s390-bios: Extend find_dev() for non-virtio devices
We need a method for finding the subchannel of a dasd device. Let's
modify find_dev to handle this since it mostly does what we need. Up to
this point find_dev has been specific to only virtio devices.
Signed-off-by: Jason J. Herne <jjherne@linux.ibm.com>
Acked-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <1554388475-18329-11-git-send-email-jjherne@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'pc-bios')
| -rw-r--r-- | pc-bios/s390-ccw/main.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/pc-bios/s390-ccw/main.c b/pc-bios/s390-ccw/main.c index e403b5f733..d04ea8972a 100644 --- a/pc-bios/s390-ccw/main.c +++ b/pc-bios/s390-ccw/main.c @@ -52,6 +52,12 @@ unsigned int get_loadparm_index(void) return atoui(loadparm_str); } +/* + * Find the subchannel connected to the given device (dev_no) and fill in the + * subchannel information block (schib) with the connected subchannel's info. + * NOTE: The global variable blk_schid is updated to contain the subchannel + * information. + */ static bool find_dev(Schib *schib, int dev_no) { int i, r; @@ -65,15 +71,15 @@ static bool find_dev(Schib *schib, int dev_no) if (!schib->pmcw.dnv) { continue; } - if (!virtio_is_supported(blk_schid)) { - continue; - } + /* Skip net devices since no IPLB is created and therefore no - * no network bootloader has been loaded + * network bootloader has been loaded */ - if (virtio_get_device_type() == VIRTIO_ID_NET && dev_no < 0) { + if (virtio_is_supported(blk_schid) && + virtio_get_device_type() == VIRTIO_ID_NET && dev_no < 0) { continue; } + if ((dev_no < 0) || (schib->pmcw.dev == dev_no)) { return true; } |