diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/vnet/devices/virtio/vhost_user.c | 54 |
1 files changed, 19 insertions, 35 deletions
diff --git a/src/vnet/devices/virtio/vhost_user.c b/src/vnet/devices/virtio/vhost_user.c index 0ecc2ffb2ee..3217c72f95d 100644 --- a/src/vnet/devices/virtio/vhost_user.c +++ b/src/vnet/devices/virtio/vhost_user.c @@ -211,27 +211,6 @@ vhost_user_update_iface_state (vhost_user_intf_t * vui) } } -static void -vhost_user_set_interrupt_pending (vhost_user_intf_t * vui, u32 ifq) -{ - u32 qid; - vnet_main_t *vnm = vnet_get_main (); - vhost_user_vring_t *txvq; - - qid = ifq & 0xff; - if ((qid & 1) == 0) - /* Only care about the odd number, or TX, virtqueue */ - return; - - // qid >> 1 is to convert virtqueue number to vring queue index - qid >>= 1; - txvq = &vui->vrings[VHOST_VRING_IDX_TX (qid)]; - if (vhost_user_intf_ready (vui) && - ((txvq->mode == VNET_HW_IF_RX_MODE_ADAPTIVE) || - (txvq->mode == VNET_HW_IF_RX_MODE_INTERRUPT))) - vnet_hw_if_rx_queue_set_int_pending (vnm, txvq->queue_index); -} - static clib_error_t * vhost_user_callfd_read_ready (clib_file_t * uf) { @@ -258,27 +237,32 @@ vhost_user_thread_placement (vhost_user_intf_t * vui, u32 qid) static clib_error_t * vhost_user_kickfd_read_ready (clib_file_t * uf) { - __attribute__ ((unused)) int n; + __attribute__ ((unused)) ssize_t n; u8 buff[8]; + vhost_user_main_t *vum = &vhost_user_main; vhost_user_intf_t *vui = - pool_elt_at_index (vhost_user_main.vhost_user_interfaces, - uf->private_data >> 8); + pool_elt_at_index (vum->vhost_user_interfaces, uf->private_data >> 8); u32 qid = uf->private_data & 0xff; + u32 is_txq = qid & 1; + vhost_user_vring_t *vq = &vui->vrings[qid]; + vnet_main_t *vnm = vnet_get_main (); - n = read (uf->file_descriptor, ((char *) &buff), 8); - vu_log_debug (vui, "if %d KICK queue %d", vui->hw_if_index, qid); - if (!vui->vrings[qid].started || - (vhost_user_intf_ready (vui) != vui->is_ready)) + n = read (uf->file_descriptor, buff, 8); + if (vq->started == 0) { - if (vui->vrings[qid].started == 0) - { - vui->vrings[qid].started = 1; - vhost_user_thread_placement (vui, qid); - vhost_user_update_iface_state (vui); - } + vq->started = 1; + vhost_user_thread_placement (vui, qid); + vhost_user_update_iface_state (vui); + if (is_txq) + vnet_hw_if_set_rx_queue_file_index (vnm, vq->queue_index, + vq->kickfd_idx); } - vhost_user_set_interrupt_pending (vui, uf->private_data); + if (is_txq && (vhost_user_intf_ready (vui) && + ((vq->mode == VNET_HW_IF_RX_MODE_ADAPTIVE) || + (vq->mode == VNET_HW_IF_RX_MODE_INTERRUPT)))) + vnet_hw_if_rx_queue_set_int_pending (vnm, vq->queue_index); + return 0; } |