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authorOlaf Hering <olh@suse.de>2005-11-08 21:34:36 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2005-11-09 07:55:51 -0800
commit143dcec2f7123b630b9e2c01c31b01a383dc15ff (patch)
treecd23667a84b74921058809357f7d2c60116e5f87 /arch/powerpc/kernel/vio.c
parent8827cc706861070f8a3a9e839b96e40231b16ce0 (diff)
[PATCH] ppc64: add MODALIAS= for vio bus
A non-broken udev would autoload also the drivers for devices on the pseries vio bus, like ibmveth, ibmvscsic and hvsc. This is similar to pci, usb and ieee1394: /lib/modules/`uname -r`/modules.alias alias vio:TvscsiSIBM,v-scsi* ibmvscsic alias vio:TnetworkSIBM,l-lan* ibmveth alias vio:Tserial-serverShvterm2* hvcs /events/debug.00004.pci.add.1394:MODALIAS='pci:v00001014d00000188sv00000000sd00000000bc06sc04i0f' /events/debug.00005.pci.add.1509:MODALIAS='pci:v00008086d00001229sv00001014sd000001FFbc02sc00i00' /events/debug.00026.vio.add.1519:MODALIAS='vio:TserialShvterm1' /events/debug.00027.vio.add.1446:MODALIAS='vio:TvscsiSIBM,v-scsi' /events/debug.00028.vio.add.1451:MODALIAS='vio:TnetworkSIBM,l-lan' modprobe -v vio:TnetworkSIBM,l-lan insmod /lib/modules/2.6.14-20051030_vio-ppc64/kernel/drivers/net/ibmveth.ko Signed-off-by: Olaf Hering <olh@suse.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/powerpc/kernel/vio.c')
-rw-r--r--arch/powerpc/kernel/vio.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index 97082a4203a..71a6addf9f7 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -21,6 +21,7 @@
#include <asm/iommu.h>
#include <asm/dma.h>
#include <asm/vio.h>
+#include <asm/prom.h>
static const struct vio_device_id *vio_match_device(
const struct vio_device_id *, const struct vio_dev *);
@@ -265,7 +266,33 @@ static int vio_bus_match(struct device *dev, struct device_driver *drv)
return (ids != NULL) && (vio_match_device(ids, vio_dev) != NULL);
}
+static int vio_hotplug(struct device *dev, char **envp, int num_envp,
+ char *buffer, int buffer_size)
+{
+ const struct vio_dev *vio_dev = to_vio_dev(dev);
+ char *cp;
+ int length;
+
+ if (!num_envp)
+ return -ENOMEM;
+
+ if (!vio_dev->dev.platform_data)
+ return -ENODEV;
+ cp = (char *)get_property(vio_dev->dev.platform_data, "compatible", &length);
+ if (!cp)
+ return -ENODEV;
+
+ envp[0] = buffer;
+ length = scnprintf(buffer, buffer_size, "MODALIAS=vio:T%sS%s",
+ vio_dev->type, cp);
+ if (buffer_size - length <= 0)
+ return -ENOMEM;
+ envp[1] = NULL;
+ return 0;
+}
+
struct bus_type vio_bus_type = {
.name = "vio",
+ .hotplug = vio_hotplug,
.match = vio_bus_match,
};