Re: [PATCH net 1/5] ibmvnic: harden interrupt handler
From: Thomas Falcon <hidden>
Date: 2017-01-26 19:05:53
Also in:
linuxppc-dev
On 01/26/2017 12:28 PM, Stephen Hemminger wrote:
On Wed, 25 Jan 2017 15:02:19 -0600 Thomas Falcon [off-list ref] wrote:quoted
static irqreturn_t ibmvnic_interrupt(int irq, void *instance) { struct ibmvnic_adapter *adapter = instance; + unsigned long flags; + + spin_lock_irqsave(&adapter->crq.lock, flags); + vio_disable_interrupts(adapter->vdev); + tasklet_schedule(&adapter->tasklet); + spin_unlock_irqrestore(&adapter->crq.lock, flags); + return IRQ_HANDLED; +} +Why not use NAPI? rather than a tasklet
This interrupt function doesn't process packets, but message passing between firmware and driver for determining device capabilities and available resources, such as the number TX and RX queues.