diff options
Diffstat (limited to 'usr/src/man/man9e/mac.9e')
| -rw-r--r-- | usr/src/man/man9e/mac.9e | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/usr/src/man/man9e/mac.9e b/usr/src/man/man9e/mac.9e index 52984f9791..c22becc131 100644 --- a/usr/src/man/man9e/mac.9e +++ b/usr/src/man/man9e/mac.9e @@ -9,9 +9,9 @@ .\" http://www.illumos.org/license/CDDL. .\" .\" -.\" Copyright 2016 Joyent, Inc. +.\" Copyright 2018 Joyent, Inc. .\" -.Dd March 26, 2017 +.Dd March 23, 2018 .Dt MAC 9E .Os .Sh NAME @@ -550,24 +550,28 @@ The following set of flags may be combined through a bitwise inclusive OR: .Bl -tag -width Ds .It Sy HCKSUM_INET_PARTIAL This indicates that the hardware can calculate a partial checksum for -both IPv4 and IPv6; however, it requires the pseudo-header checksum be -calculated for it. +both IPv4 and IPv6 UDP and TCP packets; however, it requires the pseudo-header +checksum be calculated for it. The pseudo-header checksum will be available for the mblk_t when calling .Xr mac_hcksum_get 9F . -Note this does not imply that the hardware is capable of calculating the -IPv4 header checksum. +Note this does not imply that the hardware is capable of calculating +the partial checksum for other L4 protocols or the IPv4 header checksum. That should be indicated with the .Sy HCKSUM_IPHDRCKSUM flag. .It Sy HCKSUM_INET_FULL_V4 -This indicates that the hardware will fully calculate the L4 checksum -for outgoing IPv4 packets and does not require a pseudo-header checksum. +This indicates that the hardware will fully calculate the L4 checksum for +outgoing IPv4 UDP or TCP packets only, and does not require a pseudo-header +checksum. Note this does not imply that the hardware is capable of calculating the -IPv4 header checksum. +checksum for other L4 protocols or the IPv4 header checksum. That should be indicated with the .Sy HCKSUM_IPHDRCKSUM . .It Sy HCKSUM_INET_FULL_V6 -This indicates that the hardware will fully calculate the L4 checksum -for outgoing IPv6 packets and does not require a pseudo-header checksum. +This indicates that the hardware will fully calculate the L4 checksum for +outgoing IPv6 UDP or TCP packets only, and does not require a pseudo-header +checksum. +Note this does not imply that the hardware is capable of calculating the +checksum for any other L4 protocols. .It Sy HCKSUM_IPHDRCKSUM This indicates that the hardware supports calculating the checksum for the IPv4 header itself. |