diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/sfc/net_driver.h | 4 | ||||
| -rw-r--r-- | drivers/net/sfc/nic.c | 17 | ||||
| -rw-r--r-- | drivers/net/sfc/nic.h | 3 | ||||
| -rw-r--r-- | drivers/net/sfc/selftest.c | 16 |
4 files changed, 18 insertions, 22 deletions
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h index 2e6fd89f2a72..ee0ea01c847e 100644 --- a/drivers/net/sfc/net_driver.h +++ b/drivers/net/sfc/net_driver.h @@ -336,7 +336,7 @@ enum efx_rx_alloc_method { * @eventq: Event queue buffer * @eventq_read_ptr: Event queue read pointer * @last_eventq_read_ptr: Last event queue read pointer value. - * @eventq_magic: Event queue magic value for driver-generated test events + * @magic_count: Event queue test event count * @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 @@ -367,7 +367,7 @@ struct efx_channel { struct efx_special_buffer eventq; unsigned int eventq_read_ptr; unsigned int last_eventq_read_ptr; - unsigned int eventq_magic; + unsigned int magic_count; unsigned int irq_count; unsigned int irq_mod_score; diff --git a/drivers/net/sfc/nic.c b/drivers/net/sfc/nic.c index ec0bb80f5ae8..ca9cf1a33803 100644 --- a/drivers/net/sfc/nic.c +++ b/drivers/net/sfc/nic.c @@ -79,6 +79,10 @@ MODULE_PARM_DESC(rx_xon_thresh_bytes, "RX fifo XON threshold"); /* Depth of RX flush request fifo */ #define EFX_RX_FLUSH_COUNT 4 +/* Magic value for efx_generate_test_event() */ +#define EFX_CHANNEL_MAGIC(_channel) \ + (0x00010100 + (_channel)->channel) + /************************************************************************** * * Solarstorm hardware access @@ -993,8 +997,10 @@ int efx_nic_process_eventq(struct efx_channel *channel, int budget) } break; case FSE_AZ_EV_CODE_DRV_GEN_EV: - channel->eventq_magic = EFX_QWORD_FIELD( - event, FSF_AZ_DRV_GEN_EV_MAGIC); + if (EFX_QWORD_FIELD(event, FSF_AZ_DRV_GEN_EV_MAGIC) + == EFX_CHANNEL_MAGIC(channel)) + ++channel->magic_count; + EFX_LOG(channel->efx, "channel %d received generated " "event "EFX_QWORD_FMT"\n", channel->channel, EFX_QWORD_VAL(event)); @@ -1088,12 +1094,9 @@ void efx_nic_remove_eventq(struct efx_channel *channel) } -/* Generates a test event on the event queue. A subsequent call to - * process_eventq() should pick up the event and place the value of - * "magic" into channel->eventq_magic; - */ -void efx_nic_generate_test_event(struct efx_channel *channel, unsigned int magic) +void efx_nic_generate_test_event(struct efx_channel *channel) { + unsigned int magic = EFX_CHANNEL_MAGIC(channel); efx_qword_t test_event; EFX_POPULATE_QWORD_2(test_event, FSF_AZ_EV_CODE, diff --git a/drivers/net/sfc/nic.h b/drivers/net/sfc/nic.h index bbc2c0c2f843..186aab564c4a 100644 --- a/drivers/net/sfc/nic.h +++ b/drivers/net/sfc/nic.h @@ -190,8 +190,7 @@ extern int efx_nic_rx_xoff_thresh, efx_nic_rx_xon_thresh; /* 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, - unsigned int magic); +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_disable_interrupts(struct efx_nic *efx); extern void efx_nic_fini_interrupt(struct efx_nic *efx); diff --git a/drivers/net/sfc/selftest.c b/drivers/net/sfc/selftest.c index 52ac14af83a4..c088740e3493 100644 --- a/drivers/net/sfc/selftest.c +++ b/drivers/net/sfc/selftest.c @@ -161,23 +161,17 @@ static int efx_test_interrupts(struct efx_nic *efx, static int efx_test_eventq_irq(struct efx_channel *channel, struct efx_self_tests *tests) { - unsigned int magic, count; - - /* Channel specific code, limited to 20 bits */ - magic = (0x00010150 + channel->channel); - EFX_LOG(channel->efx, "channel %d testing event queue with code %x\n", - channel->channel, magic); + unsigned int magic_count, count; tests->eventq_dma[channel->channel] = -1; tests->eventq_int[channel->channel] = -1; tests->eventq_poll[channel->channel] = -1; - /* Reset flag and zero magic word */ + magic_count = channel->magic_count; channel->efx->last_irq_cpu = -1; - channel->eventq_magic = 0; smp_wmb(); - efx_nic_generate_test_event(channel, magic); + efx_nic_generate_test_event(channel); /* Wait for arrival of interrupt */ count = 0; @@ -187,7 +181,7 @@ static int efx_test_eventq_irq(struct efx_channel *channel, if (channel->work_pending) efx_process_channel_now(channel); - if (channel->eventq_magic == magic) + if (channel->magic_count != magic_count) goto eventq_ok; } while (++count < 2); @@ -204,7 +198,7 @@ static int efx_test_eventq_irq(struct efx_channel *channel, /* Check to see if event was received even if interrupt wasn't */ efx_process_channel_now(channel); - if (channel->eventq_magic == magic) { + if (channel->magic_count != magic_count) { EFX_ERR(channel->efx, "channel %d event was generated, but " "failed to trigger an interrupt\n", channel->channel); tests->eventq_dma[channel->channel] = 1; |
