[ofa-general] using qos_X vs qos_ca_X / qos_swe_X directives

[Or Gerlitz]

Hi Yevgeny,

I noted that when I use qos_X directives in the opensm config file, they are not
applied by the SM on the fabric, but rather the "default values (hard-coded in
OpenSM initialization)". When I use qos_ca_X and qos_swe_X directives, they
are applied on the fabric. I have checked this with both 3.1.11 or 3.2.2
(in their ofed 1.3.1 / ofed 1.4 form).

Or.

E.g

try

qos_max_vls 4
qos_high_limit 255
qos_vlarb_high 0:128,1:64,2:32
qos_vlarb_low  0:1,1:2,2:3,3:4
qos_sl2vl 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,7

vs

qos_ca_max_vls 4
qos_ca_high_limit 255
qos_ca_vlarb_high 0:128,1:64,2:32
qos_ca_vlarb_low  0:1,1:2,2:3,3:4
qos_ca_sl2vl 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,7