Hi:
Some answers:
> 2) Where is the skb->priority assigned ?
This is set from the application with the help of a setsockopt
call. The corresponding implementation in the kernel is in
net/ipv4/ip_sockglue.c in function ip_setsockopt(). The option
used for this is IP_TOS.
>
> 3) How is the q->dequeue() initiated... is it from the net_bh ?
Two ways:
1. From dev_queue_xmit, qdisc_wakeup (in net/pkt_sched.h) to
qdisc_restart(in net/sched/sch_generic.c), which calls q_dequeue.
2. From net_bh, qdisc_run_queues (in sch_generic.c) is called, which
in turn calls qdisc_restart....
Best,
Sarav
>
> Thanks in advance,
> Pramodh
>
>
>
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