diff options
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/pcie.txt | 12 | ||||
| -rw-r--r-- | docs/specs/vhost-user.txt | 16 |
2 files changed, 22 insertions, 6 deletions
diff --git a/docs/pcie.txt b/docs/pcie.txt index 9fb20aa..5bada24 100644 --- a/docs/pcie.txt +++ b/docs/pcie.txt @@ -110,18 +110,18 @@ Plug only PCI Express devices into PCI Express Ports. -device ioh3420,id=root_port1,chassis=x,slot=y[,bus=pcie.0][,addr=z] \ -device <dev>,bus=root_port1 2.2.2 Using multi-function PCI Express Root Ports: - -device ioh3420,id=root_port1,multifunction=on,chassis=x,slot=y[,bus=pcie.0][,addr=z.0] \ - -device ioh3420,id=root_port2,chassis=x1,slot=y1[,bus=pcie.0][,addr=z.1] \ - -device ioh3420,id=root_port3,chassis=x2,slot=y2[,bus=pcie.0][,addr=z.2] \ -2.2.2 Plugging a PCI Express device into a Switch: + -device ioh3420,id=root_port1,multifunction=on,chassis=x,addr=z.0[,slot=y][,bus=pcie.0] \ + -device ioh3420,id=root_port2,chassis=x1,addr=z.1[,slot=y1][,bus=pcie.0] \ + -device ioh3420,id=root_port3,chassis=x2,addr=z.2[,slot=y2][,bus=pcie.0] \ +2.2.3 Plugging a PCI Express device into a Switch: -device ioh3420,id=root_port1,chassis=x,slot=y[,bus=pcie.0][,addr=z] \ -device x3130-upstream,id=upstream_port1,bus=root_port1[,addr=x] \ -device xio3130-downstream,id=downstream_port1,bus=upstream_port1,chassis=x1,slot=y1[,addr=z1]] \ -device <dev>,bus=downstream_port1 Notes: - - (slot, chassis) pair is mandatory and must be - unique for each PCI Express Root Port. + - (slot, chassis) pair is mandatory and must be unique for each + PCI Express Root Port. slot defaults to 0 when not specified. - 'addr' parameter can be 0 for all the examples above. diff --git a/docs/specs/vhost-user.txt b/docs/specs/vhost-user.txt index d70bd83..036890f 100644 --- a/docs/specs/vhost-user.txt +++ b/docs/specs/vhost-user.txt @@ -259,6 +259,7 @@ Protocol features #define VHOST_USER_PROTOCOL_F_LOG_SHMFD 1 #define VHOST_USER_PROTOCOL_F_RARP 2 #define VHOST_USER_PROTOCOL_F_REPLY_ACK 3 +#define VHOST_USER_PROTOCOL_F_MTU 4 Message types ------------- @@ -470,6 +471,21 @@ Message types The first 6 bytes of the payload contain the mac address of the guest to allow the vhost user backend to construct and broadcast the fake RARP. + * VHOST_USER_NET_SET_MTU + + Id: 20 + Equivalent ioctl: N/A + Master payload: u64 + + Set host MTU value exposed to the guest. + This request should be sent only when VIRTIO_NET_F_MTU feature has been + successfully negotiated, VHOST_USER_F_PROTOCOL_FEATURES is present in + VHOST_USER_GET_FEATURES and protocol feature bit + VHOST_USER_PROTOCOL_F_NET_MTU is present in + VHOST_USER_GET_PROTOCOL_FEATURES. + If VHOST_USER_PROTOCOL_F_REPLY_ACK is negotiated, slave must respond + with zero in case the specified MTU is valid, or non-zero otherwise. + VHOST_USER_PROTOCOL_F_REPLY_ACK: ------------------------------- The original vhost-user specification only demands replies for certain |