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mac_capab_rings(9s)
mac_capab_rings(9S) Kernel & Driver Data Structures mac_capab_rings(9S)
NAME
mac_capab_rings - rings capability data structure
SYNOPSIS
#include <sys/mac_provider.h>
INTERFACE LEVEL
Solaris architecture specific (Solaris DDI)
DESCRIPTION
The mac_capab_rings structure is used by a network device driver to de‐
scribe its rings capability. The structure is used as the argument to
the mc_getcapab(9E) driver entry point when querying the MAC_CA‐
PAB_RINGS capability.
STRUCTURE MEMBERS
mac_ring_type_t mr_type;
mac_group_type_t mr_group_type;
uint32_t mr_flags;
mac_rings_version_t mr_version;
uint_t mr_rnum;
uint_t mr_gnum;
mac_get_ring_t mr_rget;
mac_get_group_t mr_gget;
mac_group_add_ring_t mr_gaddring;
mac_group_rem_ring_t mr_gremring;
The following fields of the mac_capab_rings structure are set to indi‐
cate the device's rings capability:
mr_type Set by MAC layer to indicate which driver resources is
being queried. Possible ring types are
MAC_RING_TYPE_RX or MAC_RING_TYPE_TX.
mr_group_type Set by the driver to indicate whether the device is
capable of static or dynamic ring grouping. Possible
grouping types for the driver are MAC_GROUP_TYPE_STA‐
TIC or MAC_GROUP_TYPE_DYNAMIC. If the driver can dy‐
namically grow and shrink ring groups, then it should
advertise the MAC_GROUP_TYPE_DYNAMIC group type and
implement mr_gaddring() and mr_gremring() entry
points.
mr_flags Set by the driver to indicate various conditions. Cur‐
rently, MAC_RINGS_VLAN_TRANSPARENT is the possible
value to indicate the hardware is capable of transpar‐
ent VLANs.
mr_version Set by the driver to indicate the version of the rings
capability that the driver implements. The current re‐
vision level is MAC_RINGS_VERSION_1.
mr_rnum Set by the driver to indicate the total number of RX
or TX rings the driver implements.
mr_gnum Set by the driver to indicate the total number of RX
or TX ring groups the hardware implements.
mr_rget A driver entry point to get specific ring information
for each RX and TX ring the hardware implements.
mr_gget A driver entry point to get the specific information
for each RX and TX ring group the driver implements.
mr_gaddring A driver entry point to add a ring to a driver ring
group. This entry point is implemented for drivers who
support dynamic ring grouping.
mr_gremring A driver entry point to remove a specific ring from a
driver ring group.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
TRIBUTE VALUE _ Availabilitysystem/header _ Interface StabilityCommit‐
ted
SEE ALSO
attributes(7), mac_capab_rings(9E), mac_group_info(9E), mc_getca‐
pab(9E), mac_register(9S)
Oracle Solaris 11.4 16 Jun 2011 mac_capab_rings(9S)