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sfc: Encapsulate access to efx_{channel,nic}::last_irq_cpu in self-test

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Cleanup in preparation for doing an event test on ifup.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
This commit is contained in:
Ben Hutchings
2012-02-28 23:37:35 +00:00
parent ed74f48087
commit eee6f6a9e0
3 changed files with 21 additions and 14 deletions
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14
drivers/net/ethernet/sfc/selftest.c
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@@ -149,11 +149,7 @@ static int efx_test_interrupts(struct efx_nic *efx,
netif_dbg(efx, drv, efx->net_dev, "testing interrupts\n");
tests->interrupt = -1;
/* Reset interrupt flag */
efx->last_irq_cpu = -1;
smp_wmb();
efx_nic_generate_interrupt(efx);
efx_nic_irq_test_start(efx);
timeout = jiffies + IRQ_TIMEOUT;
wait = 1;
@@ -161,7 +157,7 @@ static int efx_test_interrupts(struct efx_nic *efx,
netif_dbg(efx, drv, efx->net_dev, "waiting for test interrupt\n");
do {
schedule_timeout_uninterruptible(wait);
cpu = ACCESS_ONCE(efx->last_irq_cpu);
cpu = efx_nic_irq_test_irq_cpu(efx);
if (cpu >= 0)
goto success;
wait *= 2;
@@ -192,9 +188,7 @@ static int efx_test_eventq_irq(struct efx_nic *efx,
read_ptr[channel->channel] = channel->eventq_read_ptr;
set_bit(channel->channel, &dma_pend);
set_bit(channel->channel, &int_pend);
channel->last_irq_cpu = -1;
smp_wmb();
efx_nic_generate_test_event(channel);
efx_nic_event_test_start(channel);
}
timeout = jiffies + IRQ_TIMEOUT;
@@ -216,7 +210,7 @@ static int efx_test_eventq_irq(struct efx_nic *efx,
} else {
if (efx_nic_event_present(channel))
clear_bit(channel->channel, &dma_pend);
if (ACCESS_ONCE(channel->last_irq_cpu) >= 0)
if (efx_nic_event_test_irq_cpu(channel) >= 0)
clear_bit(channel->channel, &int_pend);
}
napi_enable(&channel->napi_str);