diff options
-rw-r--r-- | drivers/net/ethernet/sfc/nic.c | 8 | ||||
-rw-r--r-- | drivers/net/ethernet/sfc/nic.h | 13 | ||||
-rw-r--r-- | drivers/net/ethernet/sfc/selftest.c | 14 |
3 files changed, 21 insertions, 14 deletions
diff --git a/drivers/net/ethernet/sfc/nic.c b/drivers/net/ethernet/sfc/nic.c index 5da8af5e7501..4c47b7569145 100644 --- a/drivers/net/ethernet/sfc/nic.c +++ b/drivers/net/ethernet/sfc/nic.c @@ -1332,8 +1332,10 @@ void efx_nic_remove_eventq(struct efx_channel *channel) } -void efx_nic_generate_test_event(struct efx_channel *channel) +void efx_nic_event_test_start(struct efx_channel *channel) { + channel->last_irq_cpu = -1; + smp_wmb(); efx_magic_event(channel, EFX_CHANNEL_MAGIC_TEST(channel)); } @@ -1382,8 +1384,10 @@ void efx_nic_disable_interrupts(struct efx_nic *efx) * Interrupt must already have been enabled, otherwise nasty things * may happen. */ -void efx_nic_generate_interrupt(struct efx_nic *efx) +void efx_nic_irq_test_start(struct efx_nic *efx) { + efx->last_irq_cpu = -1; + smp_wmb(); efx_nic_interrupts(efx, true, true); } diff --git a/drivers/net/ethernet/sfc/nic.h b/drivers/net/ethernet/sfc/nic.h index ac12f7f7f35b..e0e8596f4d10 100644 --- a/drivers/net/ethernet/sfc/nic.h +++ b/drivers/net/ethernet/sfc/nic.h @@ -301,14 +301,23 @@ extern void falcon_update_stats_xmac(struct efx_nic *efx); /* Interrupts and test events */ extern int efx_nic_init_interrupt(struct efx_nic *efx); extern void efx_nic_enable_interrupts(struct efx_nic *efx); -extern void efx_nic_generate_test_event(struct efx_channel *channel); -extern void efx_nic_generate_interrupt(struct efx_nic *efx); +extern void efx_nic_event_test_start(struct efx_channel *channel); +extern void efx_nic_irq_test_start(struct efx_nic *efx); extern void efx_nic_disable_interrupts(struct efx_nic *efx); extern void efx_nic_fini_interrupt(struct efx_nic *efx); extern irqreturn_t efx_nic_fatal_interrupt(struct efx_nic *efx); extern irqreturn_t falcon_legacy_interrupt_a1(int irq, void *dev_id); extern void falcon_irq_ack_a1(struct efx_nic *efx); +static inline int efx_nic_event_test_irq_cpu(struct efx_channel *channel) +{ + return ACCESS_ONCE(channel->last_irq_cpu); +} +static inline int efx_nic_irq_test_irq_cpu(struct efx_nic *efx) +{ + return ACCESS_ONCE(efx->last_irq_cpu); +} + /* Global Resources */ extern int efx_nic_flush_queues(struct efx_nic *efx); extern void falcon_start_nic_stats(struct efx_nic *efx); diff --git a/drivers/net/ethernet/sfc/selftest.c b/drivers/net/ethernet/sfc/selftest.c index e4b4c8a3abc6..aa4ab53cac57 100644 --- a/drivers/net/ethernet/sfc/selftest.c +++ b/drivers/net/ethernet/sfc/selftest.c @@ -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); |