diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/sfc/efx.c | 6 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/efx.h | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/net_driver.h | 6 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/nic.c | 4 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/nic.h | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/selftest.c | 35 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/selftest.h | 3 |
7 files changed, 51 insertions, 7 deletions
diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c index 00e13ab080e6..7683e53fda1d 100644 --- a/drivers/net/ethernet/sfc/efx.c +++ b/drivers/net/ethernet/sfc/efx.c @@ -25,6 +25,7 @@ #include "net_driver.h" #include "efx.h" #include "nic.h" +#include "selftest.h" #include "mcdi.h" #include "workarounds.h" @@ -1564,8 +1565,9 @@ static void efx_start_all(struct efx_nic *efx) * since we're holding the rtnl_lock at this point. */ static void efx_flush_all(struct efx_nic *efx) { - /* Make sure the hardware monitor is stopped */ + /* Make sure the hardware monitor and event self-test are stopped */ cancel_delayed_work_sync(&efx->monitor_work); + efx_selftest_async_cancel(efx); /* Stop scheduled port reconfigurations */ cancel_work_sync(&efx->mac_work); } @@ -1825,6 +1827,7 @@ static int efx_net_open(struct net_device *net_dev) efx_link_status_changed(efx); efx_start_all(efx); + efx_selftest_async_start(efx); return 0; } @@ -2375,6 +2378,7 @@ static int efx_init_struct(struct efx_nic *efx, const struct efx_nic_type *type, #endif INIT_WORK(&efx->reset_work, efx_reset_work); INIT_DELAYED_WORK(&efx->monitor_work, efx_monitor); + INIT_DELAYED_WORK(&efx->selftest_work, efx_selftest_async_work); efx->pci_dev = pci_dev; efx->msg_enable = debug; efx->state = STATE_INIT; diff --git a/drivers/net/ethernet/sfc/efx.h b/drivers/net/ethernet/sfc/efx.h index 4debfe07fb88..be8f9158a714 100644 --- a/drivers/net/ethernet/sfc/efx.h +++ b/drivers/net/ethernet/sfc/efx.h @@ -148,7 +148,7 @@ static inline void efx_schedule_channel(struct efx_channel *channel) static inline void efx_schedule_channel_irq(struct efx_channel *channel) { - channel->last_irq_cpu = raw_smp_processor_id(); + channel->event_test_cpu = raw_smp_processor_id(); efx_schedule_channel(channel); } diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h index 0b95505e8968..27fe85fd4ba3 100644 --- a/drivers/net/ethernet/sfc/net_driver.h +++ b/drivers/net/ethernet/sfc/net_driver.h @@ -325,7 +325,7 @@ enum efx_rx_alloc_method { * @eventq_mask: Event queue pointer mask * @eventq_read_ptr: Event queue read pointer * @last_eventq_read_ptr: Last event queue read pointer value. - * @last_irq_cpu: Last CPU to handle interrupt for this channel + * @event_test_cpu: Last CPU to handle interrupt or test event for this channel * @irq_count: Number of IRQs since last adaptive moderation decision * @irq_mod_score: IRQ moderation score * @rx_alloc_level: Watermark based heuristic counter for pushing descriptors @@ -356,8 +356,8 @@ struct efx_channel { unsigned int eventq_mask; unsigned int eventq_read_ptr; unsigned int last_eventq_read_ptr; + int event_test_cpu; - int last_irq_cpu; unsigned int irq_count; unsigned int irq_mod_score; #ifdef CONFIG_RFS_ACCEL @@ -678,6 +678,7 @@ struct vfdi_status; * @irq_status: Interrupt status buffer * @irq_zero_count: Number of legacy IRQs seen with queue flags == 0 * @irq_level: IRQ level/index for IRQs not triggered by an event queue + * @selftest_work: Work item for asynchronous self-test * @mtd_list: List of MTDs attached to the NIC * @nic_data: Hardware dependent state * @mac_lock: MAC access lock. Protects @port_enabled, @phy_mode, @@ -791,6 +792,7 @@ struct efx_nic { struct efx_buffer irq_status; unsigned irq_zero_count; unsigned irq_level; + struct delayed_work selftest_work; #ifdef CONFIG_SFC_MTD struct list_head mtd_list; diff --git a/drivers/net/ethernet/sfc/nic.c b/drivers/net/ethernet/sfc/nic.c index 4c47b7569145..4a9a5beec8fc 100644 --- a/drivers/net/ethernet/sfc/nic.c +++ b/drivers/net/ethernet/sfc/nic.c @@ -1083,7 +1083,7 @@ efx_handle_generated_event(struct efx_channel *channel, efx_qword_t *event) code = _EFX_CHANNEL_MAGIC_CODE(magic); if (magic == EFX_CHANNEL_MAGIC_TEST(channel)) { - /* ignore */ + channel->event_test_cpu = raw_smp_processor_id(); } else if (rx_queue && magic == EFX_CHANNEL_MAGIC_FILL(rx_queue)) { /* The queue must be empty, so we won't receive any rx * events, so efx_process_channel() won't refill the @@ -1334,7 +1334,7 @@ void efx_nic_remove_eventq(struct efx_channel *channel) void efx_nic_event_test_start(struct efx_channel *channel) { - channel->last_irq_cpu = -1; + channel->event_test_cpu = -1; smp_wmb(); efx_magic_event(channel, EFX_CHANNEL_MAGIC_TEST(channel)); } diff --git a/drivers/net/ethernet/sfc/nic.h b/drivers/net/ethernet/sfc/nic.h index e0e8596f4d10..f46e2cea8ca9 100644 --- a/drivers/net/ethernet/sfc/nic.h +++ b/drivers/net/ethernet/sfc/nic.h @@ -311,7 +311,7 @@ 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); + return ACCESS_ONCE(channel->event_test_cpu); } static inline int efx_nic_irq_test_irq_cpu(struct efx_nic *efx) { diff --git a/drivers/net/ethernet/sfc/selftest.c b/drivers/net/ethernet/sfc/selftest.c index aa4ab53cac57..de4c0069f5b2 100644 --- a/drivers/net/ethernet/sfc/selftest.c +++ b/drivers/net/ethernet/sfc/selftest.c @@ -702,6 +702,8 @@ int efx_selftest(struct efx_nic *efx, struct efx_self_tests *tests, enum reset_type reset_method = RESET_TYPE_INVISIBLE; int rc_test = 0, rc_reset = 0, rc; + efx_selftest_async_cancel(efx); + /* Online (i.e. non-disruptive) testing * This checks interrupt generation, event delivery and PHY presence. */ @@ -794,3 +796,36 @@ int efx_selftest(struct efx_nic *efx, struct efx_self_tests *tests, return rc_test; } +void efx_selftest_async_start(struct efx_nic *efx) +{ + struct efx_channel *channel; + + efx_for_each_channel(channel, efx) + efx_nic_event_test_start(channel); + schedule_delayed_work(&efx->selftest_work, IRQ_TIMEOUT); +} + +void efx_selftest_async_cancel(struct efx_nic *efx) +{ + cancel_delayed_work_sync(&efx->selftest_work); +} + +void efx_selftest_async_work(struct work_struct *data) +{ + struct efx_nic *efx = container_of(data, struct efx_nic, + selftest_work.work); + struct efx_channel *channel; + int cpu; + + efx_for_each_channel(channel, efx) { + cpu = efx_nic_event_test_irq_cpu(channel); + if (cpu < 0) + netif_err(efx, ifup, efx->net_dev, + "channel %d failed to trigger an interrupt\n", + channel->channel); + else + netif_dbg(efx, ifup, efx->net_dev, + "channel %d triggered interrupt on CPU %d\n", + channel->channel, cpu); + } +} diff --git a/drivers/net/ethernet/sfc/selftest.h b/drivers/net/ethernet/sfc/selftest.h index 87abe2a53846..aed24b736059 100644 --- a/drivers/net/ethernet/sfc/selftest.h +++ b/drivers/net/ethernet/sfc/selftest.h @@ -48,5 +48,8 @@ extern void efx_loopback_rx_packet(struct efx_nic *efx, extern int efx_selftest(struct efx_nic *efx, struct efx_self_tests *tests, unsigned flags); +extern void efx_selftest_async_start(struct efx_nic *efx); +extern void efx_selftest_async_cancel(struct efx_nic *efx); +extern void efx_selftest_async_work(struct work_struct *data); #endif /* EFX_SELFTEST_H */ |