From 39e60212087a36a53daca3904563012ccaf6e92d Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Sun, 29 Nov 2009 03:42:03 +0000 Subject: [PATCH] sfc: Remove redundant writes to INT_ADR_KER This register only needs to be written after reset, not each time we enable interrupts. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- drivers/net/sfc/falcon.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c index 2f219ce..b7e9238 100644 --- a/drivers/net/sfc/falcon.c +++ b/drivers/net/sfc/falcon.c @@ -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 */ -- 2.7.4