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DCB: Add interface to query for the DCB capabilities of an device.

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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>
This commit is contained in:
Alexander Duyck
2008-11-20 21:05:08 -08:00
committed by David S. Miller
parent 2f90b8657e
commit 46132188bf
4 changed files with 161 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
include/linux/dcbnl.h
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@ -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,
@ -216,6 +220,39 @@ enum dcbnl_tc_attrs {
DCB_TC_ATTR_PARAM_MAX = __DCB_TC_ATTR_PARAM_ENUM_MAX - 1,
};
/**
* 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
*