| Message ID | 20191017104836.32464-3-jasowang@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | mdev based hardware virtio offloading support | expand |
> -----Original Message----- > From: Jason Wang <jasowang@redhat.com> > Sent: Thursday, October 17, 2019 5:49 AM > To: kvm@vger.kernel.org; linux-s390@vger.kernel.org; linux- > kernel@vger.kernel.org; dri-devel@lists.freedesktop.org; intel- > gfx@lists.freedesktop.org; intel-gvt-dev@lists.freedesktop.org; > kwankhede@nvidia.com; alex.williamson@redhat.com; mst@redhat.com; > tiwei.bie@intel.com > Cc: virtualization@lists.linux-foundation.org; netdev@vger.kernel.org; > cohuck@redhat.com; maxime.coquelin@redhat.com; > cunming.liang@intel.com; zhihong.wang@intel.com; > rob.miller@broadcom.com; xiao.w.wang@intel.com; > haotian.wang@sifive.com; zhenyuw@linux.intel.com; zhi.a.wang@intel.com; > jani.nikula@linux.intel.com; joonas.lahtinen@linux.intel.com; > rodrigo.vivi@intel.com; airlied@linux.ie; daniel@ffwll.ch; > farman@linux.ibm.com; pasic@linux.ibm.com; sebott@linux.ibm.com; > oberpar@linux.ibm.com; heiko.carstens@de.ibm.com; gor@linux.ibm.com; > borntraeger@de.ibm.com; akrowiak@linux.ibm.com; freude@linux.ibm.com; > lingshan.zhu@intel.com; Ido Shamay <idos@mellanox.com>; > eperezma@redhat.com; lulu@redhat.com; Parav Pandit > <parav@mellanox.com>; christophe.de.dinechin@gmail.com; > kevin.tian@intel.com; stefanha@redhat.com; Jason Wang > <jasowang@redhat.com> > Subject: [PATCH V4 2/6] modpost: add support for mdev class id > > Add support to parse mdev class id table. > > Signed-off-by: Jason Wang <jasowang@redhat.com> > --- > drivers/vfio/mdev/vfio_mdev.c | 2 ++ > scripts/mod/devicetable-offsets.c | 3 +++ > scripts/mod/file2alias.c | 10 ++++++++++ > 3 files changed, 15 insertions(+) > > diff --git a/drivers/vfio/mdev/vfio_mdev.c b/drivers/vfio/mdev/vfio_mdev.c > index 7b24ee9cb8dd..cb701cd646f0 100644 > --- a/drivers/vfio/mdev/vfio_mdev.c > +++ b/drivers/vfio/mdev/vfio_mdev.c > @@ -125,6 +125,8 @@ static const struct mdev_class_id id_table[] = { > { 0 }, > }; > > +MODULE_DEVICE_TABLE(mdev, id_table); > + > static struct mdev_driver vfio_mdev_driver = { > .name = "vfio_mdev", > .probe = vfio_mdev_probe, > diff --git a/scripts/mod/devicetable-offsets.c b/scripts/mod/devicetable- > offsets.c > index 054405b90ba4..6cbb1062488a 100644 > --- a/scripts/mod/devicetable-offsets.c > +++ b/scripts/mod/devicetable-offsets.c > @@ -231,5 +231,8 @@ int main(void) > DEVID(wmi_device_id); > DEVID_FIELD(wmi_device_id, guid_string); > > + DEVID(mdev_class_id); > + DEVID_FIELD(mdev_class_id, id); > + > return 0; > } > diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c index > c91eba751804..d365dfe7c718 100644 > --- a/scripts/mod/file2alias.c > +++ b/scripts/mod/file2alias.c > @@ -1335,6 +1335,15 @@ static int do_wmi_entry(const char *filename, > void *symval, char *alias) > return 1; > } > > +/* looks like: "mdev:cN" */ > +static int do_mdev_entry(const char *filename, void *symval, char > +*alias) { > + DEF_FIELD(symval, mdev_class_id, id); > + > + sprintf(alias, "mdev:c%02X", id); > + return 1; > +} > + > /* Does namelen bytes of name exactly match the symbol? */ static bool > sym_is(const char *name, unsigned namelen, const char *symbol) { @@ - > 1407,6 +1416,7 @@ static const struct devtable devtable[] = { > {"typec", SIZE_typec_device_id, do_typec_entry}, > {"tee", SIZE_tee_client_device_id, do_tee_entry}, > {"wmi", SIZE_wmi_device_id, do_wmi_entry}, > + {"mdev", SIZE_mdev_class_id, do_mdev_entry}, > }; > > /* Create MODULE_ALIAS() statements. > -- > 2.19.1 Reviewed-by: Parav Pandit <parav@mellanox.com>
diff --git a/drivers/vfio/mdev/vfio_mdev.c b/drivers/vfio/mdev/vfio_mdev.c index 7b24ee9cb8dd..cb701cd646f0 100644 --- a/drivers/vfio/mdev/vfio_mdev.c +++ b/drivers/vfio/mdev/vfio_mdev.c @@ -125,6 +125,8 @@ static const struct mdev_class_id id_table[] = { { 0 }, }; +MODULE_DEVICE_TABLE(mdev, id_table); + static struct mdev_driver vfio_mdev_driver = { .name = "vfio_mdev", .probe = vfio_mdev_probe, diff --git a/scripts/mod/devicetable-offsets.c b/scripts/mod/devicetable-offsets.c index 054405b90ba4..6cbb1062488a 100644 --- a/scripts/mod/devicetable-offsets.c +++ b/scripts/mod/devicetable-offsets.c @@ -231,5 +231,8 @@ int main(void) DEVID(wmi_device_id); DEVID_FIELD(wmi_device_id, guid_string); + DEVID(mdev_class_id); + DEVID_FIELD(mdev_class_id, id); + return 0; } diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c index c91eba751804..d365dfe7c718 100644 --- a/scripts/mod/file2alias.c +++ b/scripts/mod/file2alias.c @@ -1335,6 +1335,15 @@ static int do_wmi_entry(const char *filename, void *symval, char *alias) return 1; } +/* looks like: "mdev:cN" */ +static int do_mdev_entry(const char *filename, void *symval, char *alias) +{ + DEF_FIELD(symval, mdev_class_id, id); + + sprintf(alias, "mdev:c%02X", id); + return 1; +} + /* Does namelen bytes of name exactly match the symbol? */ static bool sym_is(const char *name, unsigned namelen, const char *symbol) { @@ -1407,6 +1416,7 @@ static const struct devtable devtable[] = { {"typec", SIZE_typec_device_id, do_typec_entry}, {"tee", SIZE_tee_client_device_id, do_tee_entry}, {"wmi", SIZE_wmi_device_id, do_wmi_entry}, + {"mdev", SIZE_mdev_class_id, do_mdev_entry}, }; /* Create MODULE_ALIAS() statements.
Add support to parse mdev class id table. Signed-off-by: Jason Wang <jasowang@redhat.com> --- drivers/vfio/mdev/vfio_mdev.c | 2 ++ scripts/mod/devicetable-offsets.c | 3 +++ scripts/mod/file2alias.c | 10 ++++++++++ 3 files changed, 15 insertions(+)