diff options
| -rw-r--r-- | src/vnet/devices/virtio/vhost-user.c | 11 | ||||
| -rw-r--r-- | src/vnet/devices/virtio/vhost-user.h | 1 |
2 files changed, 9 insertions, 3 deletions
diff --git a/src/vnet/devices/virtio/vhost-user.c b/src/vnet/devices/virtio/vhost-user.c index bfd3e73e64a..5fe378cb771 100644 --- a/src/vnet/devices/virtio/vhost-user.c +++ b/src/vnet/devices/virtio/vhost-user.c @@ -933,7 +933,7 @@ vhost_user_socket_read (unix_file_t * uf) vui->vrings[q].callfd_idx = ~0; } - if (!(msg.u64 & 0x100)) + if (!(msg.u64 & VHOST_USER_VRING_NOFD_MASK)) { if (number_of_fds != 1) { @@ -965,7 +965,7 @@ vhost_user_socket_read (unix_file_t * uf) vui->vrings[q].kickfd_idx = ~0; } - if (!(msg.u64 & 0x100)) + if (!(msg.u64 & VHOST_USER_VRING_NOFD_MASK)) { if (number_of_fds != 1) { @@ -998,7 +998,7 @@ vhost_user_socket_read (unix_file_t * uf) if (vui->vrings[q].errfd != -1) close (vui->vrings[q].errfd); - if (!(msg.u64 & 0x100)) + if (!(msg.u64 & VHOST_USER_VRING_NOFD_MASK)) { if (number_of_fds != 1) goto close_socket; @@ -2382,6 +2382,11 @@ vhost_user_interface_rx_mode_change (vnet_main_t * vnm, u32 hw_if_index, if ((mode == VNET_HW_INTERFACE_RX_MODE_INTERRUPT) || (mode == VNET_HW_INTERFACE_RX_MODE_ADAPTIVE)) { + if (txvq->kickfd_idx == ~0) + { + // We cannot support interrupt mode if the driver opts out + return clib_error_return (0, "Driver does not support interrupt"); + } if (txvq->mode == VNET_HW_INTERFACE_RX_MODE_POLLING) { vum->ifq_count++; diff --git a/src/vnet/devices/virtio/vhost-user.h b/src/vnet/devices/virtio/vhost-user.h index ad6c4219706..ae3b88e8927 100644 --- a/src/vnet/devices/virtio/vhost-user.h +++ b/src/vnet/devices/virtio/vhost-user.h @@ -23,6 +23,7 @@ #define VHOST_VRING_IDX_RX(qid) (2*qid) #define VHOST_VRING_IDX_TX(qid) (2*qid + 1) +#define VHOST_USER_VRING_NOFD_MASK 0x100 #define VIRTQ_DESC_F_NEXT 1 #define VIRTQ_DESC_F_INDIRECT 4 #define VHOST_USER_REPLY_MASK (0x1 << 2) |