summaryrefslogtreecommitdiffstats
path: root/include
diff options
context:
space:
mode:
authorAlexander Duyck <alexander.h.duyck@intel.com>2008-11-20 21:10:23 -0800
committerDavid S. Miller <davem@davemloft.net>2008-11-20 21:10:23 -0800
commit859ee3c43812051e21816c6d6d4cc04fb7ce9b2e (patch)
treeef3c3717038b5d4600065550f422fd8abf72de35 /include
parent0eb3aa9bab20217fb42244ccdcb5bf8a002f504c (diff)
downloadlinux-859ee3c43812051e21816c6d6d4cc04fb7ce9b2e.tar.bz2
DCB: Add support for DCB BCN
Adds an interface to configure the Backward Congestion Notification (BCN) feature. In a BCN capabale network, congestion notifications from congested points out in the network can cause the end station limit the rate of a given traffic flow. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/linux/dcbnl.h44
-rw-r--r--include/net/dcbnl.h4
2 files changed, 47 insertions, 1 deletions
diff --git a/include/linux/dcbnl.h b/include/linux/dcbnl.h
index 6cc4560bc376..e73a61449ad6 100644
--- a/include/linux/dcbnl.h
+++ b/include/linux/dcbnl.h
@@ -46,6 +46,8 @@ struct dcbmsg {
* @DCB_CMD_GCAP: request the DCB capabilities of the device
* @DCB_CMD_GNUMTCS: get the number of traffic classes currently supported
* @DCB_CMD_SNUMTCS: set the number of traffic classes
+ * @DCB_CMD_GBCN: set backward congestion notification configuration
+ * @DCB_CMD_SBCN: get backward congestion notification configration.
*/
enum dcbnl_commands {
DCB_CMD_UNDEFINED,
@@ -62,18 +64,24 @@ enum dcbnl_commands {
DCB_CMD_PFC_SCFG,
DCB_CMD_SET_ALL,
+
DCB_CMD_GPERM_HWADDR,
+
DCB_CMD_GCAP,
+
DCB_CMD_GNUMTCS,
DCB_CMD_SNUMTCS,
+
DCB_CMD_PFC_GSTATE,
DCB_CMD_PFC_SSTATE,
+ DCB_CMD_BCN_GCFG,
+ DCB_CMD_BCN_SCFG,
+
__DCB_CMD_ENUM_MAX,
DCB_CMD_MAX = __DCB_CMD_ENUM_MAX - 1,
};
-
/**
* enum dcbnl_attrs - DCB top-level netlink attributes
*
@@ -88,6 +96,7 @@ enum dcbnl_commands {
* @DCB_ATTR_PERM_HWADDR: MAC address of the physical device (NLA_NESTED)
* @DCB_ATTR_CAP: DCB capabilities of the device (NLA_NESTED)
* @DCB_ATTR_NUMTCS: number of traffic classes supported (NLA_NESTED)
+ * @DCB_ATTR_BCN: backward congestion notification configuration (NLA_NESTED)
*/
enum dcbnl_attrs {
DCB_ATTR_UNDEFINED,
@@ -102,6 +111,7 @@ enum dcbnl_attrs {
DCB_ATTR_PERM_HWADDR,
DCB_ATTR_CAP,
DCB_ATTR_NUMTCS,
+ DCB_ATTR_BCN,
__DCB_ATTR_ENUM_MAX,
DCB_ATTR_MAX = __DCB_ATTR_ENUM_MAX - 1,
@@ -282,6 +292,38 @@ enum dcbnl_numtcs_attrs {
DCB_NUMTCS_ATTR_MAX = __DCB_NUMTCS_ATTR_ENUM_MAX - 1,
};
+enum dcbnl_bcn_attrs{
+ DCB_BCN_ATTR_UNDEFINED = 0,
+
+ DCB_BCN_ATTR_RP_0,
+ DCB_BCN_ATTR_RP_1,
+ DCB_BCN_ATTR_RP_2,
+ DCB_BCN_ATTR_RP_3,
+ DCB_BCN_ATTR_RP_4,
+ DCB_BCN_ATTR_RP_5,
+ DCB_BCN_ATTR_RP_6,
+ DCB_BCN_ATTR_RP_7,
+ DCB_BCN_ATTR_RP_ALL,
+
+ DCB_BCN_ATTR_ALPHA,
+ DCB_BCN_ATTR_BETA,
+ DCB_BCN_ATTR_GD,
+ DCB_BCN_ATTR_GI,
+ DCB_BCN_ATTR_TMAX,
+ DCB_BCN_ATTR_TD,
+ DCB_BCN_ATTR_RMIN,
+ DCB_BCN_ATTR_W,
+ DCB_BCN_ATTR_RD,
+ DCB_BCN_ATTR_RU,
+ DCB_BCN_ATTR_WRTT,
+ DCB_BCN_ATTR_RI,
+ DCB_BCN_ATTR_C,
+ DCB_BCN_ATTR_ALL,
+
+ __DCB_BCN_ATTR_ENUM_MAX,
+ DCB_BCN_ATTR_MAX = __DCB_BCN_ATTR_ENUM_MAX - 1,
+};
+
/**
* enum dcb_general_attr_values - general DCB attribute values
*
diff --git a/include/net/dcbnl.h b/include/net/dcbnl.h
index c7d87caf3f99..91e0a3d7faf2 100644
--- a/include/net/dcbnl.h
+++ b/include/net/dcbnl.h
@@ -44,6 +44,10 @@ struct dcbnl_rtnl_ops {
u8 (*setnumtcs)(struct net_device *, int, u8);
u8 (*getpfcstate)(struct net_device *);
void (*setpfcstate)(struct net_device *, u8);
+ void (*getbcncfg)(struct net_device *, int, u32 *);
+ void (*setbcncfg)(struct net_device *, int, u32);
+ void (*getbcnrp)(struct net_device *, int, u8 *);
+ void (*setbcnrp)(struct net_device *, int, u8);
};
#endif /* __NET_DCBNL_H__ */