xnu-4903.221.2.tar.gz

[apple/xnu.git] / bsd / sys / kpi_mbuf.h

diff --git a/bsd/sys/kpi_mbuf.h b/bsd/sys/kpi_mbuf.h
index d877f0974f7fd28bd5db406b917508adc436aa74..9ecef199cb7cad48cb4e036bc5e3ed1635ec86ba 100644 (file)
--- a/bsd/sys/kpi_mbuf.h
+++ b/bsd/sys/kpi_mbuf.h
@@ -1535,6 +1535,10 @@ extern errno_t mbuf_get_traffic_class_index(mbuf_traffic_class_t tc,
                medium loss tolerant, elastic flow, constant packet interval,
                variable rate & size.  This level corresponds to WMM access
                class "VI" or MBUF_TC_VI.
+       @constant MBUF_SC_SIG "Signaling", low delay tolerant, low loss
+               tolerant, inelastic flow, jitter tolerant, rate is bursty but
+               short, variable size. e.g. SIP.  This level corresponds to WMM
+               access class "VI" or MBUF_TC_VI.
        @constant MBUF_SC_VO "Interactive Voice", low delay tolerant, low loss
                tolerant, inelastic flow, constant packet rate, somewhat fixed
                size.  This level corresponds to WMM access class "VO" or
@@ -1556,6 +1560,7 @@ typedef enum {
        MBUF_SC_AV              = 0x00280120,
        MBUF_SC_RV              = 0x00300110,
        MBUF_SC_VI              = 0x00380100,
+       MBUF_SC_SIG             = 0x00380130,
 
        MBUF_SC_VO              = 0x00400180,
        MBUF_SC_CTL             = 0x00480190,   /* highest class */