search for: datapath

Hey, two questions regarding setwd and list.files: I try to use the function list.files: >datapath<-'/nfs/home/m/cremer/gaw/data/traws_chrs' >fl<-list.files(datapath, pattern="\\.tped") but I get the following error message: Warning message: In list.files(datapath, pattern = "\\.tped") : list.files: '/nfs/home/m/cremer/gaw/data/traws_chrs/' is no...

...by SKB_GSO_UDP6, add proper checks > to handel UFO6 flows. > Legacy applications may still have UFO6 packets identified by SKB_GSO_UDP, > so we need to continue to handle them correclty. > Signed-off-by: Vladislav Yasevich <vyasevic at redhat.com> > --- > net/openvswitch/datapath.c | 3 ++- > net/openvswitch/flow.c | 2 +- > 2 files changed, 3 insertions(+), 2 deletions(-) > diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c > index f9e556b..b43fc60 100644 > --- a/net/openvswitch/datapath.c > +++ b/net/openvswitch/datapath.c > @...

...by SKB_GSO_UDP6, add proper checks > to handel UFO6 flows. > Legacy applications may still have UFO6 packets identified by SKB_GSO_UDP, > so we need to continue to handle them correclty. > Signed-off-by: Vladislav Yasevich <vyasevic at redhat.com> > --- > net/openvswitch/datapath.c | 3 ++- > net/openvswitch/flow.c | 2 +- > 2 files changed, 3 insertions(+), 2 deletions(-) > diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c > index f9e556b..b43fc60 100644 > --- a/net/openvswitch/datapath.c > +++ b/net/openvswitch/datapath.c > @...

...n, Apr 30, 2018 at 05:00:33AM CEST, sridhar.samudrala at intel.com wrote: >> > On 4/28/2018 1:24 AM, Jiri Pirko wrote: >> > > Fri, Apr 27, 2018 at 07:06:59PM CEST, sridhar.samudrala at intel.com wrote: >> > > > This patch enables virtio_net to switch over to a VF datapath when a VF >> > > > netdev is present with the same MAC address. It allows live migration >> > > > of a VM with a direct attached VF without the need to setup a bond/team >> > > > between a VF and virtio net device in the guest. >> > > > &...

Hello: I have problems generating big JPG plots in functions. the following code runs fine in the script: #### runs fine in script, generate 40k "test1.jpg" in the given directory plotPlatesAlong <- c(1:5) plotDirPath <- paste(dataPath, "OutputPlots\\", sep="") filename <- paste(plotDirPath,"test1.jpg", sep="") jpeg(file=filename) plotHeatTrellis(dataPath, plotVariable = "Raw", plotPlatesAlong) # here plotHeatTrellis() generates a complicate plot, but it works dev.off() #...

This patch enables virtio_net to switch over to a VF datapath when a VF netdev is present with the same MAC address. It allows live migration of a VM with a direct attached VF without the need to setup a bond/team between a VF and virtio net device in the guest. The hypervisor needs to enable only one datapath at any time so that packets don't get looped...

This patch enables virtio_net to switch over to a VF datapath when STANDBY feature is enabled and a VF netdev is present with the same MAC address. It allows live migration of a VM with a direct attached VF without the need to setup a bond/team between a VF and virtio net device in the guest. It uses the API that is exported by the net_failover driver to cre...

On Fri, 16 Feb 2018 10:11:21 -0800, Sridhar Samudrala wrote: > This patch enables virtio_net to switch over to a VF datapath when a VF > netdev is present with the same MAC address. It allows live migration > of a VM with a direct attached VF without the need to setup a bond/team > between a VF and virtio net device in the guest. > > The hypervisor needs to enable only one datapath at any time so that &gt...

...gt; BACKUP feature enabled will?now show 2 virtio-net netdevs. > > One virtio-net and one virtio-bond, which represents what's happening. > This again assumes that we want to represent a bond setup. Can't we > treat this > as virtio-net providing an alternate low-latency datapath by taking over > VF datapath? Bond is just a familiar name, we can call it something else if you prefer. The point is there are two data paths which can have independent low-level settings and a higher level entity with global settings which represents any path to the outside world. Hiding l...

...s always used if present in > > preference to standby. > OK. If this is the only semantics of what "standby" refers to in > general, that is fine. > > I just don't want to limit the failover/standby semantics to the > device model specifics, the "accelerated datapath" thing or whatever. > I really don't know where the requirements of the "accelerated > datapath" came from, It's a way to put it that matches what failover actually provides. > as the originial problem is migrating vfio > devices which is in match of QEMU's...

This patch enables virtio_net to switch over to a VF datapath when a VF netdev is present with the same MAC address. It allows live migration of a VM with a direct attached VF without the need to setup a bond/team between a VF and virtio net device in the guest. The hypervisor needs to unplug the VF device from the guest on the source host and reset the MAC...

...gt; >>>>> One virtio-net and one virtio-bond, which represents what's happening. >>>> >>>> This again assumes that we want to represent a bond setup. Can't we >>>> treat this >>>> as virtio-net providing an alternate low-latency datapath by taking over >>>> VF datapath? >>> >>> Bond is just a familiar name, we can call it something else if you >>> prefer. The point is there are two data paths which can have >>> independent low-level settings and a higher level entity with >>&gt...

Author: ayznaga Repository: /hg/zfs-crypto/gate Revision: e3fd1c8e561df6513f95dba9c1ab58f4690d3354 Log message: PSARC 2005/738 SSG-Availability Feature Set 2 APR PSARC 2005/748 FMA for UltraSPARC DataPath 6229087 SPARC CPU/Mem DE should track DIMM serial numbers on Serengeti/Starcat 6281100 RFE: AVL-FS2: Support Anchored Page Retire for LW8, Serengeti & Starcat platforms 6281113 RFE: AVL-FS2: FMA-AVL Datapath Diagnosis Coordination Files: create: usr/src/cmd/fm/modules/sun4u/cpumem-diagnosis/c...

...will now show 2 virtio-net netdevs. >>>> One virtio-net and one virtio-bond, which represents what's happening. >>> This again assumes that we want to represent a bond setup. Can't we >>> treat this >>> as virtio-net providing an alternate low-latency datapath by taking over >>> VF datapath? >> Bond is just a familiar name, we can call it something else if you >> prefer. The point is there are two data paths which can have >> independent low-level settings and a higher level entity with >> global settings which represent...

...sign. > >> > > > >> > > So management needs to know the capability of guest to set the > >> > > backup feature. This looks a chicken or egg problem to me. > >> > > >> > I don't think so. If the tenant requests 'accelerated datapath feature', > >> > the management > >> > will set 'standby' feature bit on virtio-net interface and if the guest > >> > virtio-net driver > >> > supports this feature, then the tenant VM will get that capability via a > >> > hot-...

...nes of >>> code? Sounds like a pretty weak argument when adding kernel ABI is at >>> stake... >> I am still not clear on the need for the extra netdev created by >> virtio_net. The only advantage i can see is that the stats can be >> broken between VF and virtio datapaths compared to the aggregrated >> stats on virtio netdev as seen with the 2 netdev approach. > Maybe you're not convinced but multiple arguments were made. All the arguments seem to either saying that semantically this doesn't look like a bond OR suggesting usecases that this patch...

...Thanks > >> Sridhar > > You can call dev_set_mtu, but when dev_open is done the device name > > can not be changed by userspace. > I did a quick test to remove the delay and also the dev_open() call and > i don't see > any issues with virtio taking over the VF datapath. > Only the netdev_info() messages may show old device name. > > Any specific scenario where we need to explicitly call? VF's dev_open() > in the VF setup process? > I tried i40evf driver loaded after virtio_net? AND? virtio_net loading > after i40evf. > > Thanks &gt...

...6 packets can now be identified by SKB_GSO_UDP6, add proper checks to handel UFO6 flows. Legacy applications may still have UFO6 packets identified by SKB_GSO_UDP, so we need to continue to handle them correclty. Signed-off-by: Vladislav Yasevich <vyasevic at redhat.com> --- net/openvswitch/datapath.c | 3 ++- net/openvswitch/flow.c | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c index f9e556b..b43fc60 100644 --- a/net/openvswitch/datapath.c +++ b/net/openvswitch/datapath.c @@ -334,7 +334,8 @@ static int queue_g...

...6 packets can now be identified by SKB_GSO_UDP6, add proper checks to handel UFO6 flows. Legacy applications may still have UFO6 packets identified by SKB_GSO_UDP, so we need to continue to handle them correclty. Signed-off-by: Vladislav Yasevich <vyasevic at redhat.com> --- net/openvswitch/datapath.c | 3 ++- net/openvswitch/flow.c | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c index f9e556b..b43fc60 100644 --- a/net/openvswitch/datapath.c +++ b/net/openvswitch/datapath.c @@ -334,7 +334,8 @@ static int queue_g...

...VSOCK_MAX_BUF_SIZE 0xFFFFFFFFUL >>> #define VIRTIO_VSOCK_MAX_PKT_BUF_SIZE (1024 * 64) >> >> We probably don't want such high order allocation. It's better to switch to >> use order 0 pages in this case. See add_recvbuf_big() for virtio-net. If we >> get datapath unified, we will get more stuffs set. > IIUC, you are suggesting to allocate only pages and put them in a > scatterlist, then add them to the virtqueue. > > Is it correct? Yes since you are using: ??????????????? pkt->buf = kmalloc(buf_len, GFP_KERNEL); ??????????????? if (!pkt-...