* [question] netif_rx() - why don't call raise_softirq()?
@ 2004-02-04 19:11 Lee, Kuk-hyun
0 siblings, 0 replies; 2+ messages in thread
From: Lee, Kuk-hyun @ 2004-02-04 19:11 UTC (permalink / raw)
To: netdev
Hi,
I am newbie in the latest kernel development. Nowadays I am starting to work in
linux kernel. BTW, I find kernel code that I can't understand.
in bellow.
netif_rx() in 2.4.19
1238 dev_hold(skb->dev);
1239 __skb_queue_tail(&queue->input_pkt_queue,skb);
1240 /* Runs from irqs or BH's, no need to wake BH */
1241 cpu_raise_softirq(this_cpu, NET_RX_SOFTIRQ);
1242 local_irq_restore(flags);
netif_rx() in 2.4.20
1254 dev_hold(skb->dev);
1255 __skb_queue_tail(&queue->input_pkt_queue,skb);
1256 local_irq_restore(flags);
why 2.4.20's netif_rx() don't call raise_softirq()? Is there never call net_rx_action()?
maybe, IMHO, because NAPI. but I want to know exactly. I don't know reason why should
you that. I could not find reason in google or netdev mailling list.
sorry for my stupid question. Any help is highly appriciated.
Thanks,
Lee
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2004-02-05 3:39 ` [question] netif_rx() - why don't call raise_softirq()? Lee, Kuk Hyun
2004-02-04 19:11 Lee, Kuk-hyun
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