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sfc: Remove redundant writes to INT_ADR_KER

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This register only needs to be written after reset, not each time we
enable interrupts.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Hutchings 2009-11-29 03:42:03 +00:00 committed by David S. Miller
parent 3291b9db56
commit 39e6021208
1 changed files with 7 additions and 8 deletions
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15
drivers/net/sfc/falcon.c
View file

@ -1290,19 +1290,11 @@ static inline void falcon_interrupts(struct efx_nic *efx, int enabled,
void falcon_enable_interrupts(struct efx_nic *efx)
{
efx_oword_t int_adr_reg_ker;
struct efx_channel *channel;
EFX_ZERO_OWORD(*((efx_oword_t *) efx->irq_status.addr));
wmb(); /* Ensure interrupt vector is clear before interrupts enabled */
/* Program address */
EFX_POPULATE_OWORD_2(int_adr_reg_ker,
FRF_AZ_NORM_INT_VEC_DIS_KER,
EFX_INT_MODE_USE_MSI(efx),
FRF_AZ_INT_ADR_KER, efx->irq_status.dma_addr);
efx_writeo(efx, &int_adr_reg_ker, FR_AZ_INT_ADR_KER);
/* Enable interrupts */
falcon_interrupts(efx, 1, 0);
@ -3061,6 +3053,13 @@ int falcon_init_nic(struct efx_nic *efx)
EFX_POPULATE_OWORD_1(temp, FRF_AZ_RX_DC_PF_LWM, RX_DC_ENTRIES - 8);
efx_writeo(efx, &temp, FR_AZ_RX_DC_PF_WM);
/* Program INT_KER address */
EFX_POPULATE_OWORD_2(temp,
FRF_AZ_NORM_INT_VEC_DIS_KER,
EFX_INT_MODE_USE_MSI(efx),
FRF_AZ_INT_ADR_KER, efx->irq_status.dma_addr);
efx_writeo(efx, &temp, FR_AZ_INT_ADR_KER);
/* Clear the parity enables on the TX data fifos as
* they produce false parity errors because of timing issues
*/