search for: virtnet_napi_disable_all

...+ return received; +} +#endif /* CONFIG_NET_RX_BUSY_POLL */ + +static void virtnet_napi_enable_all(struct virtnet_info *vi) +{ + int i; + + for (i = 0; i < vi->max_queue_pairs; i++) { + virtnet_rq_init_lock(&vi->rq[i]); + virtnet_napi_enable(&vi->rq[i]); + } +} + +static void virtnet_napi_disable_all(struct virtnet_info *vi) +{ + int i; + + for (i = 0; i < vi->max_queue_pairs; i++) { + napi_disable(&vi->rq[i].napi); + while (!virtnet_rq_disable(&vi->rq[i])) { + pr_info("RQ %d locked\n", i); + usleep_range(1000, 20000); + } + } +} + static int virtnet_open(s...

...+ return received; +} +#endif /* CONFIG_NET_RX_BUSY_POLL */ + +static void virtnet_napi_enable_all(struct virtnet_info *vi) +{ + int i; + + for (i = 0; i < vi->max_queue_pairs; i++) { + virtnet_rq_init_lock(&vi->rq[i]); + virtnet_napi_enable(&vi->rq[i]); + } +} + +static void virtnet_napi_disable_all(struct virtnet_info *vi) +{ + int i; + + for (i = 0; i < vi->max_queue_pairs; i++) { + napi_disable(&vi->rq[i].napi); + while (!virtnet_rq_disable(&vi->rq[i])) { + pr_info("RQ %d locked\n", i); + usleep_range(1000, 20000); + } + } +} + static int virtnet_open(s...

Hi all: This series introduces the support for rx busy polling support. This was useful for reduing the latency for a kvm guest. Patch 1-2 introduces helpers which is used for rx busy polling. Patch 3 implement the main function. Test was done between a kvm guest and an external host. Two hosts were connected through 40gb mlx4 cards. With both busy_poll and busy_read are set to 50 in guest, 1

Hi all: This series introduces the support for rx busy polling support. This was useful for reduing the latency for a kvm guest. Patch 1-2 introduces helpers which is used for rx busy polling. Patch 3 implement the main function. Test was done between a kvm guest and an external host. Two hosts were connected through 40gb mlx4 cards. With both busy_poll and busy_read are set to 50 in guest, 1

...t virtnet_info *vi) > { > int i; > > - for (i = 0; i < vi->max_queue_pairs; i++) > + for (i = 0; i < vi->max_queue_pairs; i++) { > + virtnet_rq_init_lock(&vi->rq[i]); > virtnet_napi_enable(&vi->rq[i]); > + } > } > > static void virtnet_napi_disable_all(struct virtnet_info *vi) > { > int i; > > - for (i = 0; i < vi->max_queue_pairs; i++) > + for (i = 0; i < vi->max_queue_pairs; i++) { > napi_disable(&vi->rq[i].napi); > + while (!virtnet_rq_disable(&vi->rq[i])) { > + pr_info("RQ %d l...

...t virtnet_info *vi) > { > int i; > > - for (i = 0; i < vi->max_queue_pairs; i++) > + for (i = 0; i < vi->max_queue_pairs; i++) { > + virtnet_rq_init_lock(&vi->rq[i]); > virtnet_napi_enable(&vi->rq[i]); > + } > } > > static void virtnet_napi_disable_all(struct virtnet_info *vi) > { > int i; > > - for (i = 0; i < vi->max_queue_pairs; i++) > + for (i = 0; i < vi->max_queue_pairs; i++) { > napi_disable(&vi->rq[i].napi); > + while (!virtnet_rq_disable(&vi->rq[i])) { > + pr_info("RQ %d l...

...SY_POLL */ + static void virtnet_napi_enable_all(struct virtnet_info *vi) { int i; - for (i = 0; i < vi->max_queue_pairs; i++) + for (i = 0; i < vi->max_queue_pairs; i++) { + virtnet_rq_init_lock(&vi->rq[i]); virtnet_napi_enable(&vi->rq[i]); + } } static void virtnet_napi_disable_all(struct virtnet_info *vi) { int i; - for (i = 0; i < vi->max_queue_pairs; i++) + for (i = 0; i < vi->max_queue_pairs; i++) { napi_disable(&vi->rq[i].napi); + while (!virtnet_rq_disable(&vi->rq[i])) { + pr_info("RQ %d locked\n", i); + usleep_range(1000...

...n > rate was increased from 9151.94 to 19787.37. This is a misleading changelog. You forgot to describe how you allowed busy polling, as it is not 'automatic' If not, this patch adds two spinlock/unlock pairs in fast path. Also, it looks like you could split this in smaller patches. virtnet_napi_disable_all() & virtnet_napi_enable_all() could be added in a separate patch for example.

...et_info *vi) > { > int i; > > - for (i = 0; i < vi->max_queue_pairs; i++) > + for (i = 0; i < vi->max_queue_pairs; i++) { > + virtnet_rq_init_lock(&vi->rq[i]); > virtnet_napi_enable(&vi->rq[i]); > + } > } > > static void virtnet_napi_disable_all(struct virtnet_info *vi) > { > int i; > > - for (i = 0; i < vi->max_queue_pairs; i++) > + for (i = 0; i < vi->max_queue_pairs; i++) { > napi_disable(&vi->rq[i].napi); > + while (!virtnet_rq_disable(&vi->rq[i])) { > + pr_info("RQ...

...et_info *vi) > { > int i; > > - for (i = 0; i < vi->max_queue_pairs; i++) > + for (i = 0; i < vi->max_queue_pairs; i++) { > + virtnet_rq_init_lock(&vi->rq[i]); > virtnet_napi_enable(&vi->rq[i]); > + } > } > > static void virtnet_napi_disable_all(struct virtnet_info *vi) > { > int i; > > - for (i = 0; i < vi->max_queue_pairs; i++) > + for (i = 0; i < vi->max_queue_pairs; i++) { > napi_disable(&vi->rq[i].napi); > + while (!virtnet_rq_disable(&vi->rq[i])) { > + pr_info("RQ...