search for: virtnet_rq_init_lock

...poll yielded this RQ */ > + spinlock_t lock; > +#endif /* CONFIG_NET_RX_BUSY_POLL */ do we have to have a new state? no way to reuse the napi state for this? two lock/unlock operations for a poll seems excessive. > }; > > +#ifdef CONFIG_NET_RX_BUSY_POLL > +static inline void virtnet_rq_init_lock(struct receive_queue *rq) > +{ > + > + spin_lock_init(&rq->lock); > + rq->state = VIRTNET_RQ_STATE_IDLE; > +} > + > +/* called from the device poll routine or refill routine to get ownership of a > + * receive queue. > + */ > +static inline bool virtnet_rq_lo...

...poll yielded this RQ */ > + spinlock_t lock; > +#endif /* CONFIG_NET_RX_BUSY_POLL */ do we have to have a new state? no way to reuse the napi state for this? two lock/unlock operations for a poll seems excessive. > }; > > +#ifdef CONFIG_NET_RX_BUSY_POLL > +static inline void virtnet_rq_init_lock(struct receive_queue *rq) > +{ > + > + spin_lock_init(&rq->lock); > + rq->state = VIRTNET_RQ_STATE_IDLE; > +} > + > +/* called from the device poll routine or refill routine to get ownership of a > + * receive queue. > + */ > +static inline bool virtnet_rq_lo...

...efine VIRTNET_RQ_STATE_NAPI_YIELD 8 /* NAPI or refill yielded this RQ */ > +#define VIRTNET_RQ_STATE_POLL_YIELD 16 /* poll yielded this RQ */ > + spinlock_t lock; > +#endif /* CONFIG_NET_RX_BUSY_POLL */ > }; > > +#ifdef CONFIG_NET_RX_BUSY_POLL > +static inline void virtnet_rq_init_lock(struct receive_queue *rq) > +{ > + > + spin_lock_init(&rq->lock); > + rq->state = VIRTNET_RQ_STATE_IDLE; > +} > + > +/* called from the device poll routine or refill routine to get ownership of a > + * receive queue. > + */ > +static inline bool virtnet_rq_lo...

...efine VIRTNET_RQ_STATE_NAPI_YIELD 8 /* NAPI or refill yielded this RQ */ > +#define VIRTNET_RQ_STATE_POLL_YIELD 16 /* poll yielded this RQ */ > + spinlock_t lock; > +#endif /* CONFIG_NET_RX_BUSY_POLL */ > }; > > +#ifdef CONFIG_NET_RX_BUSY_POLL > +static inline void virtnet_rq_init_lock(struct receive_queue *rq) > +{ > + > + spin_lock_init(&rq->lock); > + rq->state = VIRTNET_RQ_STATE_IDLE; > +} > + > +/* called from the device poll routine or refill routine to get ownership of a > + * receive queue. > + */ > +static inline bool virtnet_rq_lo...

...r refill yielded this RQ */ +#define VIRTNET_RQ_STATE_POLL_YIELD 16 /* poll yielded this RQ */ +#define VIRTNET_RQ_YIELD (VIRTNET_RQ_STATE_NAPI_YIELD | VIRTNET_RQ_STATE_POLL_YIELD) + spinlock_t lock; +#endif /* CONFIG_NET_RX_BUSY_POLL */ }; +#ifdef CONFIG_NET_RX_BUSY_POLL +static inline void virtnet_rq_init_lock(struct receive_queue *rq) +{ + + spin_lock_init(&rq->lock); + rq->state = VIRTNET_RQ_STATE_IDLE; +} + +/* called from the device poll routine or refill routine to get ownership of a + * receive queue. + */ +static inline bool virtnet_rq_lock_napi_refill(struct receive_queue *rq) +{ + int...

...r refill yielded this RQ */ +#define VIRTNET_RQ_STATE_POLL_YIELD 16 /* poll yielded this RQ */ +#define VIRTNET_RQ_YIELD (VIRTNET_RQ_STATE_NAPI_YIELD | VIRTNET_RQ_STATE_POLL_YIELD) + spinlock_t lock; +#endif /* CONFIG_NET_RX_BUSY_POLL */ }; +#ifdef CONFIG_NET_RX_BUSY_POLL +static inline void virtnet_rq_init_lock(struct receive_queue *rq) +{ + + spin_lock_init(&rq->lock); + rq->state = VIRTNET_RQ_STATE_IDLE; +} + +/* called from the device poll routine or refill routine to get ownership of a + * receive queue. + */ +static inline bool virtnet_rq_lock_napi_refill(struct receive_queue *rq) +{ + int...

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

...WNED | VIRTNET_RQ_STATE_DISABLED) +#define VIRTNET_RQ_STATE_NAPI_YIELD 8 /* NAPI or refill yielded this RQ */ +#define VIRTNET_RQ_STATE_POLL_YIELD 16 /* poll yielded this RQ */ + spinlock_t lock; +#endif /* CONFIG_NET_RX_BUSY_POLL */ }; +#ifdef CONFIG_NET_RX_BUSY_POLL +static inline void virtnet_rq_init_lock(struct receive_queue *rq) +{ + + spin_lock_init(&rq->lock); + rq->state = VIRTNET_RQ_STATE_IDLE; +} + +/* called from the device poll routine or refill routine to get ownership of a + * receive queue. + */ +static inline bool virtnet_rq_lock_napi_refill(struct receive_queue *rq) +{ + int...

...elded >>> this RQ */ >>> +#define VIRTNET_RQ_STATE_POLL_YIELD 16 /* poll yielded this RQ */ >>> + spinlock_t lock; >>> +#endif /* CONFIG_NET_RX_BUSY_POLL */ >>> }; >>> +#ifdef CONFIG_NET_RX_BUSY_POLL >>> +static inline void virtnet_rq_init_lock(struct receive_queue *rq) >>> +{ >>> + >>> + spin_lock_init(&rq->lock); >>> + rq->state = VIRTNET_RQ_STATE_IDLE; >>> +} >>> + >>> +/* called from the device poll routine or refill routine to get >>> ownership of...

...elded >>> this RQ */ >>> +#define VIRTNET_RQ_STATE_POLL_YIELD 16 /* poll yielded this RQ */ >>> + spinlock_t lock; >>> +#endif /* CONFIG_NET_RX_BUSY_POLL */ >>> }; >>> +#ifdef CONFIG_NET_RX_BUSY_POLL >>> +static inline void virtnet_rq_init_lock(struct receive_queue *rq) >>> +{ >>> + >>> + spin_lock_init(&rq->lock); >>> + rq->state = VIRTNET_RQ_STATE_IDLE; >>> +} >>> + >>> +/* called from the device poll routine or refill routine to get >>> ownership of...

...ELD 8 /* NAPI or refill yielded >> this RQ */ >> +#define VIRTNET_RQ_STATE_POLL_YIELD 16 /* poll yielded this RQ */ >> + spinlock_t lock; >> +#endif /* CONFIG_NET_RX_BUSY_POLL */ >> }; >> +#ifdef CONFIG_NET_RX_BUSY_POLL >> +static inline void virtnet_rq_init_lock(struct receive_queue *rq) >> +{ >> + >> + spin_lock_init(&rq->lock); >> + rq->state = VIRTNET_RQ_STATE_IDLE; >> +} >> + >> +/* called from the device poll routine or refill routine to get >> ownership of a >> + * receive queue. &...

...RQ */ >>>> +#define VIRTNET_RQ_STATE_POLL_YIELD 16 /* poll yielded this RQ */ >>>> + spinlock_t lock; >>>> +#endif /* CONFIG_NET_RX_BUSY_POLL */ >>>> }; >>>> +#ifdef CONFIG_NET_RX_BUSY_POLL >>>> +static inline void virtnet_rq_init_lock(struct receive_queue *rq) >>>> +{ >>>> + >>>> + spin_lock_init(&rq->lock); >>>> + rq->state = VIRTNET_RQ_STATE_IDLE; >>>> +} >>>> + >>>> +/* called from the device poll routine or refill routine to g...