---
name: "ibv_rate_to_mbps"
section: "3"
platform: "freebsd"
package: "base"
version: "16.0-CURRENT-20261027-61c70dc16a79"
release: "FreeBSD 16.0-CURRENT (2026-10-27)"
platforms: ["linux", "freebsd"]
url: "https://new.carta.tech/ibv_rate_to_mbps"
---

# ibv\_rate\_to\_mbps(3)

## NAME

```
ibv_rate_to_mbps - convert IB rate enumeration to Mbit/sec

mbps_to_ibv_rate - convert Mbit/sec to an IB rate enumeration
```

## SYNOPSIS

```
#include <infiniband/verbs.h>

int ibv_rate_to_mbps(enum ibv_rate rate);

enum ibv_rate mbps_to_ibv_rate(int mbps);
```

## DESCRIPTION

**ibv\_rate\_to\_mbps()** converts the IB transmission rate enumeration *rate* to a number of Mbit/sec. For example, if *rate* is **IBV\_RATE\_5\_GBPS,** the value 5000 will be returned (5 Gbit/sec = 5000 Mbit/sec).

**mbps\_to\_ibv\_rate()** converts the number of Mbit/sec *mult* to an IB transmission rate enumeration. For example, if *mult* is 5000, the rate enumeration **IBV\_RATE\_5\_GBPS** will be returned.

## RETURN VALUE

**ibv\_rate\_to\_mbps()** returns the number of Mbit/sec.

**mbps\_to\_ibv\_rate()** returns the enumeration representing the IB transmission rate.

## SEE ALSO

[**ibv\_query\_port**(3)](/ibv_query_port/3.md)

## AUTHORS

- Dotan Barak \<dotanb@dev.mellanox.co.il\>