search for: tvc_vq_desc_urg

...iff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c index 69906ca..0a7e5bc 100644 --- a/drivers/vhost/scsi.c +++ b/drivers/vhost/scsi.c @@ -72,6 +72,8 @@ struct tcm_vhost_cmd { int tvc_vq_desc; /* virtio-scsi initiator task attribute */ int tvc_task_attr; + /* Descriptor urgent? */ + bool tvc_vq_desc_urgent; /* virtio-scsi initiator data direction */ enum dma_data_direction tvc_data_direction; /* Expected data transfer length from virtio-scsi header */ @@ -606,6 +608,7 @@ tcm_vhost_do_evt_work(struct vhost_scsi *vs, struct tcm_vhost_evt *evt) struct virtio_scsi_event __user *eventp; unsig...

Below should be useful for some experiments Jason is doing. I thought I'd send it out for early review/feedback. Compiled-only at this point. event idx feature allows us to defer interrupts until a specific # of descriptors were used. Sometimes it might be useful to get an interrupt after a specific descriptor, regardless. This adds a descriptor flag for this, and an API to create an urgent

Below should be useful for some experiments Jason is doing. I thought I'd send it out for early review/feedback. Compiled-only at this point. event idx feature allows us to defer interrupts until a specific # of descriptors were used. Sometimes it might be useful to get an interrupt after a specific descriptor, regardless. This adds a descriptor flag for this, and an API to create an urgent

Hello all: We free old transmitted packets in ndo_start_xmit() currently, so any packet must be orphaned also there. This was used to reduce the overhead of tx interrupt to achieve better performance. But this may not work for some protocols such as TCP stream. TCP depends on the value of sk_wmem_alloc to implement various optimization for small packets stream such as TCP small queue and auto

Hello all: We free old transmitted packets in ndo_start_xmit() currently, so any packet must be orphaned also there. This was used to reduce the overhead of tx interrupt to achieve better performance. But this may not work for some protocols such as TCP stream. TCP depends on the value of sk_wmem_alloc to implement various optimization for small packets stream such as TCP small queue and auto