> On 2/9/2015 9:14 AM, Ouyang, Changchun wrote: > > This is the patch set for single virtio implementation. > > > > Why we need single virtio? > > ============================ > > As we know currently there are at least 3 virtio PMD driver implementations: > > A) lib/librte_pmd_virtio(refer as virtio A); > > B) virtio_net_pmd by 6wind(refer as virtio B); > > C) virtio by Brocade/vyatta(refer as virtio C); > > > > Integrating 3 implementations into one could reduce the maintaining cost > > and time, > > in other hand, user don't need practice their application on 3 variant one > > by one to see > > which one is the best for them; > > > > What's the status? > > ==================== > > Currently virtio A has covered most features of virtio B except for using > > port io to get pci resource, > > so there is a patch(17/22) to resolve it. But on the other hand there are a > > few differences between > > virtio A and virtio C, it needs integrate features/codes of virtio C into > > virtio A. > > This patch set bases on two original RFC patch sets from Stephen > > Hemminger[stephen at networkplumber.org] > > Refer to [http://dpdk.org/ml/archives/dev/2014-August/004845.html ] for the > > original one. > > This patch set also resolves some conflict with latest codes, removed > > duplicated codes, fix some > > issues in original codes. > > > > What this patch set contains: > > =============================== > > 1) virtio: Rearrange resource initialization, it extracts a function to > > setup PCI resources; > > 2) virtio: Use weaker barriers, as DPDK driver only has to deal with the > > case of running on PCI > > and with SMP, In this case, the code can use the weaker barriers > > instead of using hard (fence) > > barriers. This may help performance a bit; > > 3) virtio: Allow starting with link down, other driver has similar > > behavior; > > 4) virtio: Add support for Link State interrupt; > > 5) ether: Add soft vlan encap/decap functions, it helps if HW don't > > support vlan strip; > > 6) virtio: Use software vlan stripping; > > 7) virtio: Remove unnecessary adapter structure; > > 8) virtio: Remove redundant vq_alignment, as vq alignment is always 4K, > > so use constant when needed; > > 9) virtio: Fix how states are handled during initialization, this is to > > match Linux kernel; > > 10) virtio: Make vtpci_get_status a local function as it is used in one > > file; > > 11) virtio: Check for packet headroom at compile time; > > 12) virtio: Move allocation before initialization to avoid being stuck in > > middle of virtio init; > > 13) virtio: Add support for vlan filtering; > > 14) virtio: Add support for multiple mac addresses; > > 15) virtio: Add ability to set MAC address; > > 16) virtio: Free mbuf's with threshold, this makes its behavior more like > > ixgbe; > > 17) virtio: Use port IO to get PCI resource for security reasons and > > match virtio-net-pmd; > > 18) virtio: Fix descriptor index issue; > > 19) ether: Fix vlan strip/insert issue; > > 20) example/vhost: Avoid inserting vlan twice and guest and host; > > 21) example/vhost: Add vlan-strip cmd line option to turn on/off vlan > > strip on host; > > 22) virtio: Use soft vlan strip in mergeable Rx path, this makes it has > > consistent logic > > with the normal Rx path. > > > > Changes in v2: > > 23) virtio: Fix zero copy break issue, the vring should be ready before > > virtio PMD set > > the status of DRIVER_OK; > > 24) virtio: Remove unnecessary hotspots in data path. > > > > Changes in v3: > > 25) virtio: Fix wmb issue; > > 26) Fix one minor issue in patch 20, also fix its idention. > > > > Changes in v4: > > 27) Fix updating vring descriptor index issue and memory barrier issue; > > 28) Reslove comments for patch 17. > > > > Changchun Ouyang (10): > > virtio: Use port IO to get PCI resource. > > virtio: Fix descriptor index issue > > ether: Fix vlan strip/insert issue > > example/vhost: Avoid inserting vlan twice > > example/vhost: Add vlan-strip cmd line option > > virtio: Use soft vlan strip in mergeable Rx path > > virtio: Fix zero copy break issue > > virtio: Remove hotspots > > virtio: Fix wmb issue > > virtio: Fix updating vring descriptor index issue > > > > Stephen Hemminger (16): > > virtio: Rearrange resource initialization > > virtio: Use weaker barriers > > virtio: Allow starting with link down > > virtio: Add support for Link State interrupt > > ether: Add soft vlan encap/decap functions > > virtio: Use software vlan stripping > > virtio: Remove unnecessary adapter structure > > virtio: Remove redundant vq_alignment > > virtio: Fix how states are handled during initialization > > virtio: Make vtpci_get_status local > > virtio: Check for packet headroom at compile time > > virtio: Move allocation before initialization > > virtio: Add support for vlan filtering > > virtio: Add suport for multiple mac addresses > > virtio: Add ability to set MAC address > > virtio: Free mbuf's with threshold > > Acked-by Huawei Xie <huawei.xie at intel.com>
Applied, thanks. The patches which were fixing previous ones have been merged. The virtio-net-pmd extension (out of tree) should be deprecated now.
