* [Qemu-devel] Fwd: [question] About MSI for vioscsi [not found] <54AE4253.2090206@huawei.com> @ 2015-01-08 8:40 ` Wangting (Kathy) 2015-01-08 9:01 ` Vadim Rozenfeld 0 siblings, 1 reply; 5+ messages in thread From: Wangting (Kathy) @ 2015-01-08 8:40 UTC (permalink / raw) To: Vadim Rozenfeld; +Cc: qemu-devel Hi Vadim, In order to enable MSI for vioscsi in virtio-win-0.1-74, I try to merge the patch about Bug 1077566 into it, but I find that MSI still doesn't work, because the value of IRQ is not negative in the device manager. I try to trace the I/O path with ENABLE_COM_DEBUG, and I find that pMsixCapOffset->MessageControl.MSIXEnable is zero when StorPortGetBusData returned in VioScsiFindAdapter, so MSI can't be enabled. I have tested that MSI is successfully enabled in virtio-win-0.1-81. But I still want to find out why the patch is not work in virtio-win-0.1-74. Is there some important points I missed? Thank you very much. Best wishes, Ting Wang ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Qemu-devel] Fwd: [question] About MSI for vioscsi 2015-01-08 8:40 ` [Qemu-devel] Fwd: [question] About MSI for vioscsi Wangting (Kathy) @ 2015-01-08 9:01 ` Vadim Rozenfeld 2015-01-08 9:27 ` Wangting (Kathy) 0 siblings, 1 reply; 5+ messages in thread From: Vadim Rozenfeld @ 2015-01-08 9:01 UTC (permalink / raw) To: Wangting (Kathy); +Cc: qemu-devel On Thu, 2015-01-08 at 16:40 +0800, Wangting (Kathy) wrote: > Hi Vadim, > > In order to enable MSI for vioscsi in virtio-win-0.1-74, I try to merge > > the patch about Bug 1077566 into it, but I find that MSI still doesn't work, > > because the value of IRQ is not negative in the device manager. > > I try to trace the I/O path with ENABLE_COM_DEBUG, and I find that > > pMsixCapOffset->MessageControl.MSIXEnable is zero when > > StorPortGetBusData returned in VioScsiFindAdapter, so MSI can't be enabled. > > I have tested that MSI is successfully enabled in virtio-win-0.1-81. > > But I still want to find out why the patch is not work in virtio-win-0.1-74. > > Is there some important points I missed? Did you enable MSISupported in inf file? Cheers, Vadim. > > Thank you very much. > > Best wishes, > > Ting Wang > > > > > > > > ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Qemu-devel] Fwd: [question] About MSI for vioscsi 2015-01-08 9:01 ` Vadim Rozenfeld @ 2015-01-08 9:27 ` Wangting (Kathy) 2015-01-08 10:03 ` Vadim Rozenfeld 0 siblings, 1 reply; 5+ messages in thread From: Wangting (Kathy) @ 2015-01-08 9:27 UTC (permalink / raw) To: Vadim Rozenfeld; +Cc: qemu-devel On 2015-1-8 17:01, Vadim Rozenfeld wrote: > On Thu, 2015-01-08 at 16:40 +0800, Wangting (Kathy) wrote: >> Hi Vadim, >> >> In order to enable MSI for vioscsi in virtio-win-0.1-74, I try to merge >> >> the patch about Bug 1077566 into it, but I find that MSI still doesn't work, >> >> because the value of IRQ is not negative in the device manager. >> >> I try to trace the I/O path with ENABLE_COM_DEBUG, and I find that >> >> pMsixCapOffset->MessageControl.MSIXEnable is zero when >> >> StorPortGetBusData returned in VioScsiFindAdapter, so MSI can't be enabled. >> >> I have tested that MSI is successfully enabled in virtio-win-0.1-81. >> >> But I still want to find out why the patch is not work in virtio-win-0.1-74. >> >> Is there some important points I missed? > > Did you enable MSISupported in inf file? > > Cheers, > Vadim. > Where is the inf file? Do you mean qemupciserial.inf? >> >> Thank you very much. >> >> Best wishes, >> >> Ting Wang >> >> >> >> >> >> >> >> > > > > ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Qemu-devel] Fwd: [question] About MSI for vioscsi 2015-01-08 9:27 ` Wangting (Kathy) @ 2015-01-08 10:03 ` Vadim Rozenfeld 2015-01-09 3:48 ` Wangting (Kathy) 0 siblings, 1 reply; 5+ messages in thread From: Vadim Rozenfeld @ 2015-01-08 10:03 UTC (permalink / raw) To: Wangting (Kathy); +Cc: qemu-devel On Thu, 2015-01-08 at 17:27 +0800, Wangting (Kathy) wrote: > > On 2015-1-8 17:01, Vadim Rozenfeld wrote: > > On Thu, 2015-01-08 at 16:40 +0800, Wangting (Kathy) wrote: > >> Hi Vadim, > >> > >> In order to enable MSI for vioscsi in virtio-win-0.1-74, I try to merge > >> > >> the patch about Bug 1077566 into it, but I find that MSI still doesn't work, > >> > >> because the value of IRQ is not negative in the device manager. > >> > >> I try to trace the I/O path with ENABLE_COM_DEBUG, and I find that > >> > >> pMsixCapOffset->MessageControl.MSIXEnable is zero when > >> > >> StorPortGetBusData returned in VioScsiFindAdapter, so MSI can't be enabled. > >> > >> I have tested that MSI is successfully enabled in virtio-win-0.1-81. > >> > >> But I still want to find out why the patch is not work in virtio-win-0.1-74. > >> > >> Is there some important points I missed? > > > > Did you enable MSISupported in inf file? > > > > Cheers, > > Vadim. > > > Where is the inf file? Do you mean qemupciserial.inf? vioscsi.inx in the source directory. After stamping, it will be copied into vioscsi.inf, as part of build process. > >> > >> Thank you very much. > >> > >> Best wishes, > >> > >> Ting Wang > >> > >> > >> > >> > >> > >> > >> > >> > > > > > > > > > > ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Qemu-devel] Fwd: [question] About MSI for vioscsi 2015-01-08 10:03 ` Vadim Rozenfeld @ 2015-01-09 3:48 ` Wangting (Kathy) 0 siblings, 0 replies; 5+ messages in thread From: Wangting (Kathy) @ 2015-01-09 3:48 UTC (permalink / raw) To: Vadim Rozenfeld; +Cc: qemu-devel On 2015-1-8 18:03, Vadim Rozenfeld wrote: > On Thu, 2015-01-08 at 17:27 +0800, Wangting (Kathy) wrote: >> >> On 2015-1-8 17:01, Vadim Rozenfeld wrote: >>> On Thu, 2015-01-08 at 16:40 +0800, Wangting (Kathy) wrote: >>>> Hi Vadim, >>>> >>>> In order to enable MSI for vioscsi in virtio-win-0.1-74, I try to merge >>>> >>>> the patch about Bug 1077566 into it, but I find that MSI still doesn't work, >>>> >>>> because the value of IRQ is not negative in the device manager. >>>> >>>> I try to trace the I/O path with ENABLE_COM_DEBUG, and I find that >>>> >>>> pMsixCapOffset->MessageControl.MSIXEnable is zero when >>>> >>>> StorPortGetBusData returned in VioScsiFindAdapter, so MSI can't be enabled. >>>> >>>> I have tested that MSI is successfully enabled in virtio-win-0.1-81. >>>> >>>> But I still want to find out why the patch is not work in virtio-win-0.1-74. >>>> >>>> Is there some important points I missed? >>> >>> Did you enable MSISupported in inf file? >>> >>> Cheers, >>> Vadim. >>> >> Where is the inf file? Do you mean qemupciserial.inf? > > vioscsi.inx in the source directory. After stamping, > it will be copied into vioscsi.inf, as part of build > process. > > Sorry, I forget to update vioscsi.inf after compiling. The patch is OK. Thanks. Ting >>>> >>>> Thank you very much. >>>> >>>> Best wishes, >>>> >>>> Ting Wang >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>> >>> >>> >>> >> >> > > > > ^ permalink raw reply [flat|nested] 5+ messages in thread
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[not found] <54AE4253.2090206@huawei.com>
2015-01-08 8:40 ` [Qemu-devel] Fwd: [question] About MSI for vioscsi Wangting (Kathy)
2015-01-08 9:01 ` Vadim Rozenfeld
2015-01-08 9:27 ` Wangting (Kathy)
2015-01-08 10:03 ` Vadim Rozenfeld
2015-01-09 3:48 ` Wangting (Kathy)
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