diff options
| author | Tony Zelenoff <antonz@parallels.com> | 2012-04-13 06:09:52 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-04-15 12:56:02 -0400 |
| commit | 73650f28ae60b7a9e38b1612012f92a6c3b9941c (patch) | |
| tree | 2f56bae7b04a47b4fcf8f0eceefe1ccd95c8e70a /drivers/net/ethernet/atheros/atlx | |
| parent | aa45ba90b59b7a18b067b898a8cc8ccf8cbbb261 (diff) | |
| download | blackbird-op-linux-73650f28ae60b7a9e38b1612012f92a6c3b9941c.tar.gz blackbird-op-linux-73650f28ae60b7a9e38b1612012f92a6c3b9941c.zip | |
atl1: enable errors and link ints when rx/tx scheduled
Signed-off-by: Tony Zelenoff <antonz@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/atheros/atlx')
| -rw-r--r-- | drivers/net/ethernet/atheros/atlx/atl1.c | 32 | ||||
| -rw-r--r-- | drivers/net/ethernet/atheros/atlx/atl1.h | 10 |
2 files changed, 29 insertions, 13 deletions
diff --git a/drivers/net/ethernet/atheros/atlx/atl1.c b/drivers/net/ethernet/atheros/atlx/atl1.c index 93c92291da9c..f17cecae59e5 100644 --- a/drivers/net/ethernet/atheros/atlx/atl1.c +++ b/drivers/net/ethernet/atheros/atlx/atl1.c @@ -2460,20 +2460,33 @@ static int atl1_rings_clean(struct napi_struct *napi, int budget) napi_complete(napi); /* re-enable Interrupt */ - iowrite32(ISR_DIS_SMB | ISR_DIS_DMA, adapter->hw.hw_addr + REG_ISR); + if (likely(adapter->int_enabled)) + atlx_imr_set(adapter, IMR_NORMAL_MASK); return work_done; } static inline int atl1_sched_rings_clean(struct atl1_adapter* adapter) { - if (likely(napi_schedule_prep(&adapter->napi))) { - __napi_schedule(&adapter->napi); + if (!napi_schedule_prep(&adapter->napi)) + /* It is possible in case even the RX/TX ints are disabled via IMR + * register the ISR bits are set anyway (but do not produce IRQ). + * To handle such situation the napi functions used to check is + * something scheduled or not. + */ + return 0; + + __napi_schedule(&adapter->napi); + + /* + * Disable RX/TX ints via IMR register if it is + * allowed. NAPI handler must reenable them in same + * way. + */ + if (!adapter->int_enabled) return 1; - } - dev_printk(KERN_ERR, &adapter->pdev->dev, - "rx: INTs must be disabled!"); - return 0; + atlx_imr_set(adapter, IMR_NORXTX_MASK); + return 1; } /* @@ -2538,8 +2551,7 @@ static irqreturn_t atl1_intr(int irq, void *data) /* transmit or receive event */ if (status & (ISR_CMB_TX | ISR_CMB_RX) && atl1_sched_rings_clean(adapter)) - /* Go away with INTs disabled */ - return IRQ_HANDLED; + break; /* rx exception */ if (unlikely(status & (ISR_RXF_OV | ISR_RFD_UNRUN | @@ -2551,7 +2563,7 @@ static irqreturn_t atl1_intr(int irq, void *data) "rx exception, ISR = 0x%x\n", status); if (atl1_sched_rings_clean(adapter)) - return IRQ_HANDLED; + break; } if (--max_ints < 0) diff --git a/drivers/net/ethernet/atheros/atlx/atl1.h b/drivers/net/ethernet/atheros/atlx/atl1.h index 117a0da360b8..1cb658b2ff92 100644 --- a/drivers/net/ethernet/atheros/atlx/atl1.h +++ b/drivers/net/ethernet/atheros/atlx/atl1.h @@ -275,13 +275,17 @@ static u32 atl1_check_link(struct atl1_adapter *adapter); #define ISR_DIS_SMB 0x20000000 #define ISR_DIS_DMA 0x40000000 -/* Normal Interrupt mask */ -#define IMR_NORMAL_MASK (\ +/* Normal Interrupt mask without RX/TX enabled */ +#define IMR_NORXTX_MASK (\ ISR_SMB |\ ISR_GPHY |\ ISR_PHY_LINKDOWN|\ ISR_DMAR_TO_RST |\ - ISR_DMAW_TO_RST |\ + ISR_DMAW_TO_RST) + +/* Normal Interrupt mask */ +#define IMR_NORMAL_MASK (\ + IMR_NORXTX_MASK |\ ISR_CMB_TX |\ ISR_CMB_RX) |
