Messages in this thread | | | Date | Thu, 28 Feb 2002 14:51:17 -0800 (PST) | Subject | Re: hardware VLAN acceleration | From | "David S. Miller" <> |
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From: "Leech, Christopher" <christopher.leech@intel.com> Date: Thu, 28 Feb 2002 13:47:25 -0800
Is vlan_rx_kill_vid only there to ensure locking between vlan_hwaccel_rx and unregister_802_1Q_vlan_dev? If so, could this be handled outside of the driver?
It is there because the VLAN layer has no buisness knowing how to lock out receive interrupt processing in your driver.
The Acenic driver, for example, uses no SMP locking at all and runs it's RX interrupts %100 lockless requiring a global "cli()" in order to implement vlan_rx_kill_vid().
Also, when a vlan dev is unregistered, does the driver need to know that the vlan_group passed in to vlan_rx_register is no longer valid?
The group is still valid, groups are never destroyed by the VLAN layer once they are created.
Franks a lot, David S. Miller davem@redhat.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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