RE: [PATCH v2 0/3] hv_netvsc: Prevent packet loss during VF add/remove

> Subject: Re: [PATCH v2 0/3] hv_netvsc: Prevent packet loss during VF > add/remove > > On Fri, 8 Jan 2021 16:53:40 -0800 Long Li wrote: > > From: Long Li > > > > This patch set fixes issues with packet loss on VF add/remove. > > These patches are for net-ne

[PATCH v2 3/3] hv_netvsc: Process NETDEV_GOING_DOWN on VF hot remove

From: Long Li On VF hot remove, NETDEV_GOING_DOWN is sent to notify the VF is about to go down. At this time, the VF is still sending/receiving traffic and we request the VSP to switch datapath. On completion, the datapath is switched to synthetic and we can proceed with VF hot remove. Signed

[PATCH v2 2/3] hv_netvsc: Wait for completion on request SWITCH_DATA_PATH

From: Long Li The completion indicates if NVSP_MSG4_TYPE_SWITCH_DATA_PATH has been processed by the VSP. The traffic is steered to VF or synthetic after we receive this completion. Signed-off-by: Long Li Reported-by: kernel test robot --- Change from v1: Fixed warnings from kernel test robot

[PATCH v2 1/3] hv_netvsc: Check VF datapath when sending traffic to VF

From: Long Li The driver needs to check if the datapath has been switched to VF before sending traffic to VF. Signed-off-by: Long Li Reviewed-by: Haiyang Zhang --- drivers/net/hyperv/netvsc_drv.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/hyperv

[PATCH v2 0/3] hv_netvsc: Prevent packet loss during VF add/remove

From: Long Li This patch set fixes issues with packet loss on VF add/remove. Long Li (3): hv_netvsc: Check VF datapath when sending traffic to VF hv_netvsc: Wait for completion on request SWITCH_DATA_PATH hv_netvsc: Process NETDEV_GOING_DOWN on VF hot remove drivers/net/hyperv/netvsc.c

RE: [PATCH 2/3] hv_netvsc: Wait for completion on request NVSP_MSG4_TYPE_SWITCH_DATA_PATH

608753098%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIj > > > oiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=MMXkQ > > KENGpyfW0NJs2khBSKTuBExFSZaWHgWyyIj6UU%3D&reserved=0 > > git remote add linux-review > > > https://nam06.safelinks.protection.outloo

RE: [PATCH 2/3] hv_netvsc: Wait for completion on request NVSP_MSG4_TYPE_SWITCH_DATA_PATH

7C0 > %7C637455042608753098%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjA > wMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&s > data=uge6PX2NyAe%2BjRtvgOhR5xzN2ltBctZXeZwn0hoYco0%3D&reser > ved=0 > git fetch --no-tags linux-review Long-Li/hv_netvsc-Check-VF-datapat

[PATCH 3/3] hv_netvsc: Process NETDEV_GOING_DOWN on VF hot remove

From: Long Li On VF hot remove, NETDEV_GOING_DOWN is sent to notify the VF is about to go down. At this time, the VF is still sending/receiving traffic and we request the VSP to switch datapath. On completion, the datapath is switched to synthetic and we can proceed with VF hot remove. Signed

[PATCH 2/3] hv_netvsc: Wait for completion on request NVSP_MSG4_TYPE_SWITCH_DATA_PATH

From: Long Li The completion indicates if NVSP_MSG4_TYPE_SWITCH_DATA_PATH has been processed by the VSP. The traffic is steered to VF or synthetic after we receive this completion. Signed-off-by: Long Li --- drivers/net/hyperv/netvsc.c | 34 +++-- drivers/net

[PATCH 1/3] hv_netvsc: Check VF datapath when sending traffic to VF

From: Long Li The driver needs to check if the datapath has been switched to VF before sending traffic to VF. Signed-off-by: Long Li --- drivers/net/hyperv/netvsc_drv.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv

RE: [Resend Patch 3/3] Storvsc: Select channel based on available percentage of ring buffer to write

> Subject: RE: [Resend Patch 3/3] Storvsc: Select channel based on available > percentage of ring buffer to write > > > -Original Message- > > From: linux-kernel-ow...@vger.kernel.org > > On Behalf Of Long Li > > Sent: Tuesday, March 27, 2018 5:49 PM >

RE: [Resend Patch 1/3] Vmbus: Add function to report available ring buffer to write in total ring size percentage

> Subject: Re: [Resend Patch 1/3] Vmbus: Add function to report available ring > buffer to write in total ring size percentage > > > Long, > > > Netvsc has a function to calculate how much ring buffer in percentage > > is available to write. This function is also useful for storvsc and > > other

[Resend Patch 2/3] Netvsc: Use the vmbus functiton to calculate ring buffer percentage

From: Long Li In Vmbus, we have defined a function to calculate available ring buffer percentage to write. Use that function and remove netvsc's private version. Signed-off-by: Long Li --- drivers/net/hyperv/hyperv_net.h | 1 - drivers/net/hyperv/netvsc.c | 17 +++-- dr

[Resend Patch 3/3] Storvsc: Select channel based on available percentage of ring buffer to write

From: Long Li This is a best effort for estimating on how busy the ring buffer is for that channel, based on available buffer to write in percentage. It is still possible that at the time of actual ring buffer write, the space may not be available due to other processes may be writing at the

[Resend Patch 1/3] Vmbus: Add function to report available ring buffer to write in total ring size percentage

From: Long Li Netvsc has a function to calculate how much ring buffer in percentage is available to write. This function is also useful for storvsc and other vmbus devices. Define a similar function in vmbus to be used by other vmbus devices. Signed-off-by: Long Li --- drivers/hv