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| author | emax <emax@FreeBSD.org> | 2012-10-16 20:18:15 +0000 |
|---|---|---|
| committer | emax <emax@FreeBSD.org> | 2012-10-16 20:18:15 +0000 |
| commit | 214df82afacb6e4f782e0d8090c25db6a7230fdf (patch) | |
| tree | dec9f0f9a9c4a5b630ecc54647b2983d7efa02d8 | |
| parent | 4ac8b06a126f93ab2a23f6da8ea7364eb32ef2ba (diff) | |
| download | FreeBSD-src-214df82afacb6e4f782e0d8090c25db6a7230fdf.zip FreeBSD-src-214df82afacb6e4f782e0d8090c25db6a7230fdf.tar.gz | |
introduce concept of ifi_baudrate power factor. the idea is to work
around the problem where high speed interfaces (such as ixgbe(4))
are not able to report real ifi_baudrate. bascially, take a spare
byte from struct if_data and use it to store ifi_baudrate power
factor. in other words,
real ifi_baudrate = ifi_baudrate * 10 ^ ifi_baudrate power factor
this should be backwards compatible with old binaries. use ixgbe(4)
as an example on how drivers would set ifi_baudrate power factor
Discussed with: kib, scottl, glebius
MFC after: 1 week
| -rw-r--r-- | sys/dev/ixgbe/ixgbe.c | 3 | ||||
| -rw-r--r-- | sys/net/if.h | 2 | ||||
| -rw-r--r-- | sys/net/if_var.h | 1 |
3 files changed, 4 insertions, 2 deletions
diff --git a/sys/dev/ixgbe/ixgbe.c b/sys/dev/ixgbe/ixgbe.c index 19e3c40..bb8b58c 100644 --- a/sys/dev/ixgbe/ixgbe.c +++ b/sys/dev/ixgbe/ixgbe.c @@ -2597,7 +2597,8 @@ ixgbe_setup_interface(device_t dev, struct adapter *adapter) return (-1); } if_initname(ifp, device_get_name(dev), device_get_unit(dev)); - ifp->if_baudrate = 1000000000; + ifp->if_baudrate = IF_Gbps(1); + ifp->if_baudrate_pf = 1; /* 1Gbps * 10^1 = 10Gbps */ ifp->if_init = ixgbe_init; ifp->if_softc = adapter; ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; diff --git a/sys/net/if.h b/sys/net/if.h index d420d26..93448b5 100644 --- a/sys/net/if.h +++ b/sys/net/if.h @@ -86,7 +86,7 @@ struct if_data { u_char ifi_hdrlen; /* media header length */ u_char ifi_link_state; /* current link state */ u_char ifi_vhid; /* carp vhid */ - u_char ifi_spare_char2; /* spare byte */ + u_char ifi_baudrate_pf; /* baudrate power factor */ u_char ifi_datalen; /* length of this data struct */ u_long ifi_mtu; /* maximum transmission unit */ u_long ifi_metric; /* routing metric (external only) */ diff --git a/sys/net/if_var.h b/sys/net/if_var.h index 8a1d5cc..d695ef4 100644 --- a/sys/net/if_var.h +++ b/sys/net/if_var.h @@ -228,6 +228,7 @@ typedef void if_init_f_t(void *); #define if_metric if_data.ifi_metric #define if_link_state if_data.ifi_link_state #define if_baudrate if_data.ifi_baudrate +#define if_baudrate_pf if_data.ifi_baudrate_pf #define if_hwassist if_data.ifi_hwassist #define if_ipackets if_data.ifi_ipackets #define if_ierrors if_data.ifi_ierrors |
