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Message-ID: <1417118789-18231-1-git-send-email-mst@redhat.com>
Date: Thu, 27 Nov 2014 22:07:31 +0200
From: "Michael S. Tsirkin" <mst@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: David Miller <davem@...emloft.net>, cornelia.huck@...ibm.com,
rusty@....ibm.com, nab@...ux-iscsi.org, pbonzini@...hat.com,
thuth@...ux.vnet.ibm.com, dahi@...ux.vnet.ibm.com
Subject: [PATCH v6 00/45] linux: towards virtio-1 guest support
Another revision of the patchset. Second one today -
sorry about the churn, but I'm going offline for a couple of days,
so I thought I'd give people something to read for the weekend ;)
The changes are mostly cosmetic now so - there's a chance this is
the last revision.
Based on patches by Cornelia and others, but
with an API that should allow better static checking of code,
slightly more concervative changes in vring and drivers,
and compatibility for existing drivers so that
this series can be applied before all drivers are converted.
virtio net,blk and scsi drivers have been converted.
They now pass sparse without warnings.
net and blk patches have been tested on s390.
scsi patches pass sparse so they are most likely
ok too, but haven't been through testing yet -
they can be dropped from patchset if necessary.
Please review, and consider for 3.19
Changes since v5:
rewritten feature bit handling, based on suggestion by David:
changes are now smaller and easier to review.
new patch:
virtio: add low-level APIs for feature bits
rewritten patches:
virtio: use u32, not bitmap for features
virtio: add support for 64 bit features.
Changes since v4:
I have dropped 64 bit feature negotiation from
most transports (except ccw).
For symmetry, I split out ccw bits:
virtio: add support for 64 bit features.
adds core and device support for 64 bit features
virtio_ccw: add support for 64 bit features.
actually enables 64 bit features in ccw.
detail below.
this is still really a cosmetic change: just reordering/splitting
patches, and dropping code changes that aren't needed.
new patches:
mic_virtio: robust feature array size calculation
virtio: assert 32 bit features in transports
addressed comments by Cornelia:
virtio: disable virtio 1.0 in transports:
patch dropped
virtio: memory access APIs
tweaked comments as suggested by Cornelia
virtio_config: endian conversion for v1.0
dropped reviewed-by tags -
they applied to a very old version of patch
virtio: set FEATURES_OK
replaced printk by dev_err
virtio: add legacy feature table support
comment changes suggested by Cornelia
virtio_blk: v1.0 support
dropped reviewed-by tags -
they applied to a very old version of patch
virtio_net: enable v1.0 support
only write mac for legacy devices
vhost: add memory access wrappers
move chunk to vhost: make features 64 bit
better patch description
vhost: make features 64 bit
moved this patch earlier in series
vhost/net: force len for TX to host endian
better patch description
virtio_scsi: v1.0 support
fix bug: use high level, not low level wrappers
included reviewed-by tags for patches:
KVM: s390 allow virtio_ccw status writes to fail
added reviewed-by tag by Cornelia
virtio_scsi: v1.0 support
virtio_scsi: move to uapi
virtio_scsi: export to userspace
vhost/scsi: partial virtio 1.0 support
added reviewed-by tag by Paolo
Changes since v3:
- move virtio 1.0 feature bit out of transport bits:
for now it's managed by drivers
- disable virtio 1.0 feature bit explicitly - for transports
that don't support it
David, assuming patches are acceptable, I'd like them all to be merged through
virtio or vhost trees to avoid dependency headaches. Could you please ack
doing that for net related patches, especially these:
tun: move internal flag defines out of uapi
tun: drop most type defines
tun: add VNET_LE flag
tun: TUN_VNET_LE support, fix sparse warnings for virtio headers
macvtap: TUN_VNET_HDR support
vhost/scsi: partial virtio 1.0 support
af_packet: virtio 1.0 stubs
Alternatively, I can prepare a tree with virtio changes and merge
that into your net-next - if Rusty approves, or keeps
silence :)
Could you comment on this please?
Cornelia Huck (3):
virtio: allow transports to get avail/used addresses
KVM: s390: virtio-ccw revision 1 SET_VQ
KVM: s390: enable virtio-ccw revision 1
Michael S. Tsirkin (42):
virtio: add low-level APIs for feature bits
virtio: use u32, not bitmap for features
mic_virtio: robust feature array size calculation
virtio: add support for 64 bit features.
virtio: assert 32 bit features in transports
virtio_ccw: add support for 64 bit features.
virtio: add virtio 1.0 feature bit
virtio: memory access APIs
virtio_ring: switch to new memory access APIs
virtio_config: endian conversion for v1.0
virtio: set FEATURES_OK
virtio: simplify feature bit handling
virtio: add legacy feature table support
virtio_net: v1.0 endianness
virtio_blk: v1.0 support
KVM: s390 allow virtio_ccw status writes to fail
virtio_blk: make serial attribute static
virtio_blk: fix race at module removal
virtio_net: pass vi around
virtio_net: get rid of virtio_net_hdr/skb_vnet_hdr
virtio_net: stricter short buffer length checks
virtio_net: bigger header when VERSION_1 is set
virtio_net: enable v1.0 support
vhost: make features 64 bit
vhost: add memory access wrappers
vhost/net: force len for TX to host endian
vhost: virtio 1.0 endian-ness support
vhost/net: virtio 1.0 byte swap
vhost/net: larger header for virtio 1.0
virtio_net: disable mac write for virtio 1.0
vhost/net: enable virtio 1.0
vhost/net: suppress compiler warning
tun: move internal flag defines out of uapi
tun: drop most type defines
tun: add VNET_LE flag
tun: TUN_VNET_LE support, fix sparse warnings for virtio headers
macvtap: TUN_VNET_HDR support
virtio_scsi: v1.0 support
virtio_scsi: move to uapi
virtio_scsi: export to userspace
vhost/scsi: partial virtio 1.0 support
af_packet: virtio 1.0 stubs
Thomas Huth (1):
KVM: s390: Set virtio-ccw transport revision
drivers/vhost/vhost.h | 35 ++++++-
include/linux/virtio.h | 10 +-
include/linux/virtio_byteorder.h | 59 +++++++++++
include/linux/virtio_config.h | 100 +++++++++++++++++--
include/uapi/linux/if_tun.h | 17 +---
include/uapi/linux/virtio_blk.h | 15 +--
include/uapi/linux/virtio_config.h | 5 +
include/uapi/linux/virtio_net.h | 15 +--
include/uapi/linux/virtio_ring.h | 45 ++++-----
include/{ => uapi}/linux/virtio_scsi.h | 106 ++++++++++----------
include/uapi/linux/virtio_types.h | 46 +++++++++
tools/virtio/linux/virtio.h | 22 +----
tools/virtio/linux/virtio_config.h | 2 +-
drivers/block/virtio_blk.c | 75 ++++++++------
drivers/char/virtio_console.c | 2 +-
drivers/lguest/lguest_device.c | 13 ++-
drivers/misc/mic/card/mic_virtio.c | 10 +-
drivers/net/macvtap.c | 68 ++++++++-----
drivers/net/tun.c | 170 ++++++++++++++------------------
drivers/net/virtio_net.c | 162 ++++++++++++++++---------------
drivers/remoteproc/remoteproc_virtio.c | 7 +-
drivers/s390/kvm/kvm_virtio.c | 7 +-
drivers/s390/kvm/virtio_ccw.c | 172 +++++++++++++++++++++++++++------
drivers/scsi/virtio_scsi.c | 51 ++++++----
drivers/vhost/net.c | 28 +++---
drivers/vhost/scsi.c | 22 +++--
drivers/vhost/vhost.c | 93 +++++++++++-------
drivers/virtio/virtio.c | 74 ++++++++++----
drivers/virtio/virtio_mmio.c | 13 ++-
drivers/virtio/virtio_pci.c | 8 +-
drivers/virtio/virtio_ring.c | 107 +++++++++++---------
net/packet/af_packet.c | 35 ++++---
tools/virtio/virtio_test.c | 5 +-
tools/virtio/vringh_test.c | 16 +--
include/uapi/linux/Kbuild | 2 +
35 files changed, 1031 insertions(+), 586 deletions(-)
create mode 100644 include/linux/virtio_byteorder.h
rename include/{ => uapi}/linux/virtio_scsi.h (73%)
create mode 100644 include/uapi/linux/virtio_types.h
--
MST
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