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dcbnl: add support for retrieving peer configuration - cee

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This patch adds the support for retrieving the remote or peer DCBX
configuration via dcbnl for embedded DCBX stacks supporting the CEE DCBX
standard.

Signed-off-by: Shmulik Ravid <shmulikr@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Shmulik Ravid
2011-02-27 05:04:38 +00:00
committed by David S. Miller
parent eed84713bc
commit dc6ed1df5a
3 changed files with 155 additions and 4 deletions
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71
include/linux/dcbnl.h
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@@ -87,6 +87,45 @@ struct ieee_pfc {
__u64 indications[IEEE_8021QAZ_MAX_TCS];
};
/* CEE DCBX std supported values */
#define CEE_DCBX_MAX_PGS 8
#define CEE_DCBX_MAX_PRIO 8
/**
* struct cee_pg - CEE Prioity-Group managed object
*
* @willing: willing bit in the PG tlv
* @error: error bit in the PG tlv
* @pg_en: enable bit of the PG feature
* @tcs_supported: number of traffic classes supported
* @pg_bw: bandwidth percentage for each priority group
* @prio_pg: priority to PG mapping indexed by priority
*/
struct cee_pg {
__u8 willing;
__u8 error;
__u8 pg_en;
__u8 tcs_supported;
__u8 pg_bw[CEE_DCBX_MAX_PGS];
__u8 prio_pg[CEE_DCBX_MAX_PGS];
};
/**
* struct cee_pfc - CEE PFC managed object
*
* @willing: willing bit in the PFC tlv
* @error: error bit in the PFC tlv
* @pfc_en: bitmap indicating pfc enabled traffic classes
* @tcs_supported: number of traffic classes supported
*/
struct cee_pfc {
__u8 willing;
__u8 error;
__u8 pfc_en;
__u8 tcs_supported;
};
/* This structure contains the IEEE 802.1Qaz APP managed object. This
* object is also used for the CEE std as well. There is no difference
* between the objects.
@@ -158,6 +197,7 @@ struct dcbmsg {
* @DCB_CMD_SDCBX: set DCBX engine configuration
* @DCB_CMD_GFEATCFG: get DCBX features flags
* @DCB_CMD_SFEATCFG: set DCBX features negotiation flags
* @DCB_CMD_CEE_GET: get CEE aggregated configuration
*/
enum dcbnl_commands {
DCB_CMD_UNDEFINED,
@@ -200,6 +240,8 @@ enum dcbnl_commands {
DCB_CMD_GFEATCFG,
DCB_CMD_SFEATCFG,
DCB_CMD_CEE_GET,
__DCB_CMD_ENUM_MAX,
DCB_CMD_MAX = __DCB_CMD_ENUM_MAX - 1,
};
@@ -222,6 +264,7 @@ enum dcbnl_commands {
* @DCB_ATTR_IEEE: IEEE 802.1Qaz supported attributes (NLA_NESTED)
* @DCB_ATTR_DCBX: DCBX engine configuration in the device (NLA_U8)
* @DCB_ATTR_FEATCFG: DCBX features flags (NLA_NESTED)
* @DCB_ATTR_CEE: CEE std supported attributes (NLA_NESTED)
*/
enum dcbnl_attrs {
DCB_ATTR_UNDEFINED,
@@ -245,6 +288,9 @@ enum dcbnl_attrs {
DCB_ATTR_DCBX,
DCB_ATTR_FEATCFG,
/* CEE nested attributes */
DCB_ATTR_CEE,
__DCB_ATTR_ENUM_MAX,
DCB_ATTR_MAX = __DCB_ATTR_ENUM_MAX - 1,
};
@@ -279,6 +325,31 @@ enum ieee_attrs_app {
};
#define DCB_ATTR_IEEE_APP_MAX (__DCB_ATTR_IEEE_APP_MAX - 1)
/**
* enum cee_attrs - CEE DCBX get attributes
*
* @DCB_ATTR_CEE_UNSPEC: unspecified
* @DCB_ATTR_CEE_PEER_PG: peer PG configuration - get only
* @DCB_ATTR_CEE_PEER_PFC: peer PFC configuration - get only
* @DCB_ATTR_CEE_PEER_APP: peer APP tlv - get only
*/
enum cee_attrs {
DCB_ATTR_CEE_UNSPEC,
DCB_ATTR_CEE_PEER_PG,
DCB_ATTR_CEE_PEER_PFC,
DCB_ATTR_CEE_PEER_APP_TABLE,
__DCB_ATTR_CEE_MAX
};
#define DCB_ATTR_CEE_MAX (__DCB_ATTR_CEE_MAX - 1)
enum peer_app_attr {
DCB_ATTR_CEE_PEER_APP_UNSPEC,
DCB_ATTR_CEE_PEER_APP_INFO,
DCB_ATTR_CEE_PEER_APP,
__DCB_ATTR_CEE_PEER_APP_MAX
};
#define DCB_ATTR_CEE_PEER_APP_MAX (__DCB_ATTR_CEE_PEER_APP_MAX - 1)
/**
* enum dcbnl_pfc_attrs - DCB Priority Flow Control user priority nested attrs
*