diff options
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/debug.c | 17 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/interrupt.c | 30 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/wil6210.h | 3 |
3 files changed, 47 insertions, 3 deletions
diff --git a/drivers/net/wireless/ath/wil6210/debug.c b/drivers/net/wireless/ath/wil6210/debug.c index 8d99021d27a8..3249562d93b4 100644 --- a/drivers/net/wireless/ath/wil6210/debug.c +++ b/drivers/net/wireless/ath/wil6210/debug.c @@ -32,6 +32,23 @@ void wil_err(struct wil6210_priv *wil, const char *fmt, ...) va_end(args); } +void wil_err_ratelimited(struct wil6210_priv *wil, const char *fmt, ...) +{ + if (net_ratelimit()) { + struct net_device *ndev = wil_to_ndev(wil); + struct va_format vaf = { + .fmt = fmt, + }; + va_list args; + + va_start(args, fmt); + vaf.va = &args; + netdev_err(ndev, "%pV", &vaf); + trace_wil6210_log_err(&vaf); + va_end(args); + } +} + void wil_info(struct wil6210_priv *wil, const char *fmt, ...) { struct net_device *ndev = wil_to_ndev(wil); diff --git a/drivers/net/wireless/ath/wil6210/interrupt.c b/drivers/net/wireless/ath/wil6210/interrupt.c index 90f416f239bd..4bcbd6297b3e 100644 --- a/drivers/net/wireless/ath/wil6210/interrupt.c +++ b/drivers/net/wireless/ath/wil6210/interrupt.c @@ -36,7 +36,8 @@ */ #define WIL6210_IRQ_DISABLE (0xFFFFFFFFUL) -#define WIL6210_IMC_RX BIT_DMA_EP_RX_ICR_RX_DONE +#define WIL6210_IMC_RX (BIT_DMA_EP_RX_ICR_RX_DONE | \ + BIT_DMA_EP_RX_ICR_RX_HTRSH) #define WIL6210_IMC_TX (BIT_DMA_EP_TX_ICR_TX_DONE | \ BIT_DMA_EP_TX_ICR_TX_DONE_N(0)) #define WIL6210_IMC_MISC (ISR_MISC_FW_READY | \ @@ -171,6 +172,7 @@ static irqreturn_t wil6210_irq_rx(int irq, void *cookie) u32 isr = wil_ioread32_and_clear(wil->csr + HOSTADDR(RGF_DMA_EP_RX_ICR) + offsetof(struct RGF_ICR, ICR)); + bool need_unmask = true; trace_wil6210_irq_rx(isr); wil_dbg_irq(wil, "ISR RX 0x%08x\n", isr); @@ -182,12 +184,24 @@ static irqreturn_t wil6210_irq_rx(int irq, void *cookie) wil6210_mask_irq_rx(wil); - if (isr & BIT_DMA_EP_RX_ICR_RX_DONE) { + /* RX_DONE and RX_HTRSH interrupts are the same if interrupt + * moderation is not used. Interrupt moderation may cause RX + * buffer overflow while RX_DONE is delayed. The required + * action is always the same - should empty the accumulated + * packets from the RX ring. + */ + if (isr & (BIT_DMA_EP_RX_ICR_RX_DONE | BIT_DMA_EP_RX_ICR_RX_HTRSH)) { wil_dbg_irq(wil, "RX done\n"); - isr &= ~BIT_DMA_EP_RX_ICR_RX_DONE; + + if (isr & BIT_DMA_EP_RX_ICR_RX_HTRSH) + wil_err_ratelimited(wil, "Received \"Rx buffer is in risk " + "of overflow\" interrupt\n"); + + isr &= ~(BIT_DMA_EP_RX_ICR_RX_DONE | BIT_DMA_EP_RX_ICR_RX_HTRSH); if (test_bit(wil_status_reset_done, &wil->status)) { if (test_bit(wil_status_napi_en, &wil->status)) { wil_dbg_txrx(wil, "NAPI(Rx) schedule\n"); + need_unmask = false; napi_schedule(&wil->napi_rx); } else { wil_err(wil, "Got Rx interrupt while " @@ -204,6 +218,10 @@ static irqreturn_t wil6210_irq_rx(int irq, void *cookie) /* Rx IRQ will be enabled when NAPI processing finished */ atomic_inc(&wil->isr_count_rx); + + if (unlikely(need_unmask)) + wil6210_unmask_irq_rx(wil); + return IRQ_HANDLED; } @@ -213,6 +231,7 @@ static irqreturn_t wil6210_irq_tx(int irq, void *cookie) u32 isr = wil_ioread32_and_clear(wil->csr + HOSTADDR(RGF_DMA_EP_TX_ICR) + offsetof(struct RGF_ICR, ICR)); + bool need_unmask = true; trace_wil6210_irq_tx(isr); wil_dbg_irq(wil, "ISR TX 0x%08x\n", isr); @@ -231,6 +250,7 @@ static irqreturn_t wil6210_irq_tx(int irq, void *cookie) isr &= ~(BIT(25) - 1UL); if (test_bit(wil_status_reset_done, &wil->status)) { wil_dbg_txrx(wil, "NAPI(Tx) schedule\n"); + need_unmask = false; napi_schedule(&wil->napi_tx); } else { wil_err(wil, "Got Tx interrupt while in reset\n"); @@ -243,6 +263,10 @@ static irqreturn_t wil6210_irq_tx(int irq, void *cookie) /* Tx IRQ will be enabled when NAPI processing finished */ atomic_inc(&wil->isr_count_tx); + + if (unlikely(need_unmask)) + wil6210_unmask_irq_tx(wil); + return IRQ_HANDLED; } diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h index 18cff5340bdc..f2f89e0d53b8 100644 --- a/drivers/net/wireless/ath/wil6210/wil6210.h +++ b/drivers/net/wireless/ath/wil6210/wil6210.h @@ -126,6 +126,7 @@ struct RGF_ICR { #define BIT_DMA_EP_TX_ICR_TX_DONE_N(n) BIT(n+1) /* n = [0..23] */ #define RGF_DMA_EP_RX_ICR (0x881bd0) /* struct RGF_ICR */ #define BIT_DMA_EP_RX_ICR_RX_DONE BIT(0) + #define BIT_DMA_EP_RX_ICR_RX_HTRSH BIT(1) #define RGF_DMA_EP_MISC_ICR (0x881bec) /* struct RGF_ICR */ #define BIT_DMA_EP_MISC_ICR_RX_HTRSH BIT(0) #define BIT_DMA_EP_MISC_ICR_TX_NO_ACT BIT(1) @@ -475,6 +476,8 @@ void wil_dbg_trace(struct wil6210_priv *wil, const char *fmt, ...); __printf(2, 3) void wil_err(struct wil6210_priv *wil, const char *fmt, ...); __printf(2, 3) +void wil_err_ratelimited(struct wil6210_priv *wil, const char *fmt, ...); +__printf(2, 3) void wil_info(struct wil6210_priv *wil, const char *fmt, ...); #define wil_dbg(wil, fmt, arg...) do { \ netdev_dbg(wil_to_ndev(wil), fmt, ##arg); \ |