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authorAlexander Duyck <alexander.h.duyck@intel.com>2008-11-20 21:05:08 -0800
committerDavid S. Miller <davem@davemloft.net>2008-11-20 21:05:08 -0800
commit46132188bf72e22ef097f16ed5c969ee8cea1e8b (patch)
treee776ed8011b8314ff08abf4f3467c07d037fec4f /include
parent2f90b8657ec942d1880f720e0177ee71df7c8e3c (diff)
downloadop-kernel-dev-46132188bf72e22ef097f16ed5c969ee8cea1e8b.zip
op-kernel-dev-46132188bf72e22ef097f16ed5c969ee8cea1e8b.tar.gz
DCB: Add interface to query for the DCB capabilities of an device.
Adds to the netlink interface for Data Center Bridging (DCB), allowing the DCB capabilities supported by a device to be queried. 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.h37
-rw-r--r--include/net/dcbnl.h1
2 files changed, 38 insertions, 0 deletions
diff --git a/include/linux/dcbnl.h b/include/linux/dcbnl.h
index 32d32c1..13f0c63 100644
--- a/include/linux/dcbnl.h
+++ b/include/linux/dcbnl.h
@@ -43,6 +43,7 @@ struct dcbmsg {
* @DCB_CMD_SET_ALL: apply all changes to the underlying device
* @DCB_CMD_GPERM_HWADDR: get the permanent MAC address of the underlying
* device. Only useful when using bonding.
+ * @DCB_CMD_GCAP: request the DCB capabilities of the device
*/
enum dcbnl_commands {
DCB_CMD_UNDEFINED,
@@ -60,6 +61,7 @@ enum dcbnl_commands {
DCB_CMD_SET_ALL,
DCB_CMD_GPERM_HWADDR,
+ DCB_CMD_GCAP,
__DCB_CMD_ENUM_MAX,
DCB_CMD_MAX = __DCB_CMD_ENUM_MAX - 1,
@@ -78,6 +80,7 @@ enum dcbnl_commands {
* @DCB_ATTR_PG_CFG: priority group configuration (NLA_NESTED)
* @DCB_ATTR_SET_ALL: bool to commit changes to hardware or not (NLA_U8)
* @DCB_ATTR_PERM_HWADDR: MAC address of the physical device (NLA_NESTED)
+ * @DCB_ATTR_CAP: DCB capabilities of the device (NLA_NESTED)
*/
enum dcbnl_attrs {
DCB_ATTR_UNDEFINED,
@@ -90,6 +93,7 @@ enum dcbnl_attrs {
DCB_ATTR_PG_CFG,
DCB_ATTR_SET_ALL,
DCB_ATTR_PERM_HWADDR,
+ DCB_ATTR_CAP,
__DCB_ATTR_ENUM_MAX,
DCB_ATTR_MAX = __DCB_ATTR_ENUM_MAX - 1,
@@ -217,6 +221,39 @@ enum dcbnl_tc_attrs {
};
/**
+ * enum dcbnl_cap_attrs - DCB Capability attributes
+ *
+ * @DCB_CAP_ATTR_UNDEFINED: unspecified attribute to catch errors
+ * @DCB_CAP_ATTR_ALL: (NLA_FLAG) all capability parameters
+ * @DCB_CAP_ATTR_PG: (NLA_U8) device supports Priority Groups
+ * @DCB_CAP_ATTR_PFC: (NLA_U8) device supports Priority Flow Control
+ * @DCB_CAP_ATTR_UP2TC: (NLA_U8) device supports user priority to
+ * traffic class mapping
+ * @DCB_CAP_ATTR_PG_TCS: (NLA_U8) bitmap where each bit represents a
+ * number of traffic classes the device
+ * can be configured to use for Priority Groups
+ * @DCB_CAP_ATTR_PFC_TCS: (NLA_U8) bitmap where each bit represents a
+ * number of traffic classes the device can be
+ * configured to use for Priority Flow Control
+ * @DCB_CAP_ATTR_GSP: (NLA_U8) device supports group strict priority
+ * @DCB_CAP_ATTR_BCN: (NLA_U8) device supports Backwards Congestion
+ * Notification
+ */
+enum dcbnl_cap_attrs {
+ DCB_CAP_ATTR_UNDEFINED,
+ DCB_CAP_ATTR_ALL,
+ DCB_CAP_ATTR_PG,
+ DCB_CAP_ATTR_PFC,
+ DCB_CAP_ATTR_UP2TC,
+ DCB_CAP_ATTR_PG_TCS,
+ DCB_CAP_ATTR_PFC_TCS,
+ DCB_CAP_ATTR_GSP,
+ DCB_CAP_ATTR_BCN,
+
+ __DCB_CAP_ATTR_ENUM_MAX,
+ DCB_CAP_ATTR_MAX = __DCB_CAP_ATTR_ENUM_MAX - 1,
+};
+/**
* enum dcb_general_attr_values - general DCB attribute values
*
* @DCB_ATTR_UNDEFINED: value used to indicate an attribute is not supported
diff --git a/include/net/dcbnl.h b/include/net/dcbnl.h
index 0ef0c5a..183ed04 100644
--- a/include/net/dcbnl.h
+++ b/include/net/dcbnl.h
@@ -39,6 +39,7 @@ struct dcbnl_rtnl_ops {
void (*setpfccfg)(struct net_device *, int, u8);
void (*getpfccfg)(struct net_device *, int, u8 *);
u8 (*setall)(struct net_device *);
+ u8 (*getcap)(struct net_device *, int, u8 *);
};
#endif /* __NET_DCBNL_H__ */
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