diff options
Diffstat (limited to 'usr/src/uts/common/sys/pattr.h')
| -rw-r--r-- | usr/src/uts/common/sys/pattr.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/usr/src/uts/common/sys/pattr.h b/usr/src/uts/common/sys/pattr.h index 1269aeca10..587a51f0aa 100644 --- a/usr/src/uts/common/sys/pattr.h +++ b/usr/src/uts/common/sys/pattr.h @@ -21,6 +21,7 @@ /* * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. + * Copyright 2018 Joyent, Inc. */ #ifndef _SYS_PATTR_H @@ -106,6 +107,25 @@ typedef struct pattr_hcksum_s { #define HW_LSO_FLAGS HW_LSO /* All LSO flags, currently only one */ /* + * The packet originates from a MAC on the same machine as the + * receiving MAC. There are two ways this can happen. + * + * 1. MAC loopback: When a packet is destined for a MAC client on the + * same MAC as the sender. This datapath is taken in + * max_tx_send(). + * + * 2. Bridge Fwd: When a packet is destined for a MAC client on the + * same bridge as the sender. This datapath is taken in + * bridge_forward(). + * + * Presented with this flag, a receiver can then decide whether or not + * it needs to emulate some or all of the HW offloads that the NIC + * would have performed otherwise -- or whether it should accept the + * packet as-is. + */ +#define HW_LOCAL_MAC 0x100 + +/* * Structure used for zerocopy attribute. */ typedef struct pattr_zcopy_s { |