Re: [dpdk-dev] [PATCH 2/3] vhost: support sending fds via send_vhost_message()

[Maxime Coquelin]

On 03/06/2018 11:43 AM, Tiwei Bie wrote:

This function will be used to send fds to QEMU via slave channel.

Signed-off-by: Tiwei Bie <tiwei....@intel.com>

Reviewed-by: Maxime Coquelin <maxime.coque...@redhat.com>

Thanks,
Maxime

---
  lib/librte_vhost/vhost_user.c | 8 ++++----
  1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
index 8b07b6c43..e3a1dfbfb 100644
--- a/lib/librte_vhost/vhost_user.c
+++ b/lib/librte_vhost/vhost_user.c
@@ -1308,13 +1308,13 @@ read_vhost_message(int sockfd, struct VhostUserMsg *msg)
  }

static int

-send_vhost_message(int sockfd, struct VhostUserMsg *msg)
+send_vhost_message(int sockfd, struct VhostUserMsg *msg, int *fds, int fd_num)
  {
        if (!msg)
                return 0;

return send_fd_message(sockfd, (char *)msg,

-               VHOST_USER_HDR_SIZE + msg->size, NULL, 0);
+               VHOST_USER_HDR_SIZE + msg->size, fds, fd_num);
  }

static int

@@ -1328,7 +1328,7 @@ send_vhost_reply(int sockfd, struct VhostUserMsg *msg)
        msg->flags |= VHOST_USER_VERSION;
        msg->flags |= VHOST_USER_REPLY_MASK;

- return send_vhost_message(sockfd, msg);

+       return send_vhost_message(sockfd, msg, NULL, 0);
  }

/*

@@ -1643,7 +1643,7 @@ vhost_user_iotlb_miss(struct virtio_net *dev, uint64_t 
iova, uint8_t perm)
                },
        };

- ret = send_vhost_message(dev->slave_req_fd, &msg);

+       ret = send_vhost_message(dev->slave_req_fd, &msg, NULL, 0);
        if (ret < 0) {
                RTE_LOG(ERR, VHOST_CONFIG,
                                "Failed to send IOTLB miss message (%d)\n",