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dpif: Allow the port number to be requested when adding an interface.

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The datapath allows requesting a specific port number for a port, but
the dpif interface didn't expose it.  This commit adds that support.

Signed-off-by: Justin Pettit <jpettit@nicira.com>
This commit is contained in:
Justin Pettit
2012-07-27 23:58:24 -07:00
parent 8a77bb2ec8
commit 232dfa4aa3
5 changed files with 38 additions and 12 deletions
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11
lib/dpif-netdev.c
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@@ -407,7 +407,16 @@ dpif_netdev_port_add(struct dpif *dpif, struct netdev *netdev,
struct dp_netdev *dp = get_dp_netdev(dpif);
int port_no;
port_no = choose_port(dpif, netdev);
if (*port_nop != UINT16_MAX) {
if (*port_nop >= MAX_PORTS) {
return EFBIG;
} else if (dp->ports[*port_nop]) {
return EBUSY;
}
port_no = *port_nop;
} else {
port_no = choose_port(dpif, netdev);
}
if (port_no >= 0) {
*port_nop = port_no;
return do_add_port(dp, netdev_get_name(netdev),