On 1/19/2016 4:10 PM, Yuanhan Liu wrote: > v5: minor fixes: > > - fix wrong type of arg "offset" of read/write_dev_config(): patch 2 > is newly added for that. > > - check "offset + length" overflow > > Almost all difference comes from virtio 1.0 are the PCI layout change: > the major configuration structures are stored at bar space, and their > location is stored at corresponding pci cap structure. Reading/parsing > them is one of the major work of patch 8. > > To make handling virtio v1.0 and v0.95 co-exist well, this patch set > introduces a virtio_pci_ops structure, to add another layer so that > we could keep those vtpci_foo_bar "APIs". With that, we could do the > minimum change to add virtio 1.0 support. > > > Rough test guide > ================ > > Firstly, you need get a virtio 1.0 supported QEMU (say, v2.5), then add > option "disable-modern=false" to qemu virtio-net-pci device to enable > virtio 1.0 (which is disabled by default). > > And if you see something like following from 'lspci -v', it means virtio > 1.0 is indeed enabled: > > 00:04.0 Ethernet controller: Red Hat, Inc Virtio network device > Subsystem: Red Hat, Inc Device 0001 > Physical Slot: 4 > Flags: bus master, fast devsel, latency 0, IRQ 11 > I/O ports at c040 [size=64] > Memory at febf1000 (32-bit, non-prefetchable) [size=4K] > Memory at fe000000 (64-bit, prefetchable) [size=8M] > Expansion ROM at feb80000 [disabled] [size=256K] > Capabilities: [98] MSI-X: Enable+ Count=6 Masked- > ==> Capabilities: [84] Vendor Specific Information: Len=14 <?> > ==> Capabilities: [70] Vendor Specific Information: Len=14 <?> > ==> Capabilities: [60] Vendor Specific Information: Len=10 <?> > ==> Capabilities: [50] Vendor Specific Information: Len=10 <?> > ==> Capabilities: [40] Vendor Specific Information: Len=10 <?> > Kernel driver in use: virtio-pci > Kernel modules: virtio_pci > > After that, there wasn't anything speical comparing to the old virtio > 0.95 pmd driver. > > > > --- > Yuanhan Liu (9): > virtio: don't set vring address again at queue startup > virtio: define offset as size_t type > virtio: introduce struct virtio_pci_ops > virtio: move left pci stuff to virtio_pci.c > viritio: switch to 64 bit features > virtio: retrieve hdr_size from hw->vtnet_hdr_size > eal: pci: export pci_[un]map_device > virtio: add 1.0 support > virtio: move VIRTIO_READ/WRITE_REG_X into virtio_pci.c > > doc/guides/rel_notes/release_2_3.rst | 3 + > drivers/net/virtio/virtio_ethdev.c | 302 +-------- > drivers/net/virtio/virtio_ethdev.h | 3 +- > drivers/net/virtio/virtio_pci.c | 799 > +++++++++++++++++++++++- > drivers/net/virtio/virtio_pci.h | 124 +++- > drivers/net/virtio/virtio_rxtx.c | 21 +- > drivers/net/virtio/virtio_rxtx_simple.c | 12 +- > drivers/net/virtio/virtqueue.h | 4 +- > lib/librte_eal/bsdapp/eal/eal_pci.c | 4 +- > lib/librte_eal/bsdapp/eal/rte_eal_version.map | 7 + > lib/librte_eal/common/eal_common_pci.c | 4 +- > lib/librte_eal/common/eal_private.h | 18 - > lib/librte_eal/common/include/rte_pci.h | 27 + > lib/librte_eal/linuxapp/eal/eal_pci.c | 4 +- > lib/librte_eal/linuxapp/eal/rte_eal_version.map | 7 + > 15 files changed, 957 insertions(+), 382 deletions(-) > Acked-by: Huawei Xie <huawei.xie at intel.com>
Next time, please include all the changes made in the change notice.
