diff options
Diffstat (limited to 'drivers/net/sfc/nic.c')
| -rw-r--r-- | drivers/net/sfc/nic.c | 35 |
1 files changed, 19 insertions, 16 deletions
diff --git a/drivers/net/sfc/nic.c b/drivers/net/sfc/nic.c index 664fd6ceed55..23738f80835b 100644 --- a/drivers/net/sfc/nic.c +++ b/drivers/net/sfc/nic.c @@ -1229,15 +1229,9 @@ static inline void efx_nic_interrupts(struct efx_nic *efx, bool enabled, bool force) { efx_oword_t int_en_reg_ker; - unsigned int level = 0; - - if (EFX_WORKAROUND_17213(efx) && !EFX_INT_MODE_USE_MSI(efx)) - /* Set the level always even if we're generating a test - * interrupt, because our legacy interrupt handler is safe */ - level = 0x1f; EFX_POPULATE_OWORD_3(int_en_reg_ker, - FRF_AZ_KER_INT_LEVE_SEL, level, + FRF_AZ_KER_INT_LEVE_SEL, efx->fatal_irq_level, FRF_AZ_KER_INT_KER, force, FRF_AZ_DRV_INT_EN_KER, enabled); efx_writeo(efx, &int_en_reg_ker, FR_AZ_INT_EN_KER); @@ -1291,8 +1285,6 @@ irqreturn_t efx_nic_fatal_interrupt(struct efx_nic *efx) EFX_OWORD_FMT ": %s\n", EFX_OWORD_VAL(*int_ker), EFX_OWORD_VAL(fatal_intr), error ? "disabling bus mastering" : "no recognised error"); - if (error == 0) - goto out; /* If this is a memory parity error dump which blocks are offending */ mem_perr = EFX_OWORD_FIELD(fatal_intr, FRF_AZ_MEM_PERR_INT_KER); @@ -1324,7 +1316,7 @@ irqreturn_t efx_nic_fatal_interrupt(struct efx_nic *efx) "NIC will be disabled\n"); efx_schedule_reset(efx, RESET_TYPE_DISABLE); } -out: + return IRQ_HANDLED; } @@ -1346,9 +1338,11 @@ static irqreturn_t efx_legacy_interrupt(int irq, void *dev_id) queues = EFX_EXTRACT_DWORD(reg, 0, 31); /* Check to see if we have a serious error condition */ - syserr = EFX_OWORD_FIELD(*int_ker, FSF_AZ_NET_IVEC_FATAL_INT); - if (unlikely(syserr)) - return efx_nic_fatal_interrupt(efx); + if (queues & (1U << efx->fatal_irq_level)) { + syserr = EFX_OWORD_FIELD(*int_ker, FSF_AZ_NET_IVEC_FATAL_INT); + if (unlikely(syserr)) + return efx_nic_fatal_interrupt(efx); + } if (queues != 0) { if (EFX_WORKAROUND_15783(efx)) @@ -1413,9 +1407,11 @@ static irqreturn_t efx_msi_interrupt(int irq, void *dev_id) irq, raw_smp_processor_id(), EFX_OWORD_VAL(*int_ker)); /* Check to see if we have a serious error condition */ - syserr = EFX_OWORD_FIELD(*int_ker, FSF_AZ_NET_IVEC_FATAL_INT); - if (unlikely(syserr)) - return efx_nic_fatal_interrupt(efx); + if (channel->channel == efx->fatal_irq_level) { + syserr = EFX_OWORD_FIELD(*int_ker, FSF_AZ_NET_IVEC_FATAL_INT); + if (unlikely(syserr)) + return efx_nic_fatal_interrupt(efx); + } /* Schedule processing of the channel */ efx_schedule_channel(channel); @@ -1553,6 +1549,13 @@ void efx_nic_init_common(struct efx_nic *efx) FRF_AZ_INT_ADR_KER, efx->irq_status.dma_addr); efx_writeo(efx, &temp, FR_AZ_INT_ADR_KER); + if (EFX_WORKAROUND_17213(efx) && !EFX_INT_MODE_USE_MSI(efx)) + /* Use an interrupt level unused by event queues */ + efx->fatal_irq_level = 0x1f; + else + /* Use a valid MSI-X vector */ + efx->fatal_irq_level = 0; + /* Enable all the genuinely fatal interrupts. (They are still * masked by the overall interrupt mask, controlled by * falcon_interrupts()). |