Introduce counter for Rx underflow events. Export this counter via debugfs.
Signed-off-by: Sergey Matyukevich <sergey.matyukevich...@quantenna.com>
---
drivers/net/wireless/quantenna/qtnfmac/pearl/pcie.c | 16 ++++++++++++++--
.../net/wireless/quantenna/qtnfmac/pearl/pcie_bus_priv.h | 1 +
drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_ipc.h | 1 +
.../wireless/quantenna/qtnfmac/pearl/pcie_regs_pearl.h | 1 +
4 files changed, 17 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie.c
b/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie.c
index f8207ab25576..72730aff2a41 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie.c
@@ -686,14 +686,21 @@ static irqreturn_t qtnf_interrupt(int irq, void *data)
if (!(status & priv->pcie_irq_mask))
goto irq_done;
- if (status & PCIE_HDP_INT_RX_BITS) {
+ if (status & PCIE_HDP_INT_RX_BITS)
priv->pcie_irq_rx_count++;
+
+ if (status & PCIE_HDP_INT_TX_BITS)
+ priv->pcie_irq_tx_count++;
+
+ if (status & PCIE_HDP_INT_HHBM_UF)
+ priv->pcie_irq_uf_count++;
+
+ if (status & PCIE_HDP_INT_RX_BITS) {
qtnf_dis_rxdone_irq(priv);
napi_schedule(&bus->mux_napi);
}
if (status & PCIE_HDP_INT_TX_BITS) {
- priv->pcie_irq_tx_count++;
qtnf_dis_txdone_irq(priv);
tasklet_hi_schedule(&priv->reclaim_tq);
}
@@ -1104,6 +1111,10 @@ static int qtnf_dbg_irq_stats(struct seq_file *s, void
*data)
status = reg & PCIE_HDP_INT_RX_BITS;
seq_printf(s, "pcie_irq_rx_status(%s)\n",
(status == PCIE_HDP_INT_RX_BITS) ? "EN" : "DIS");
+ seq_printf(s, "pcie_irq_uf_count(%u)\n", priv->pcie_irq_uf_count);
+ status = reg & PCIE_HDP_INT_HHBM_UF;
+ seq_printf(s, "pcie_irq_hhbm_uf_status(%s)\n",
+ (status == PCIE_HDP_INT_HHBM_UF) ? "EN" : "DIS");
return 0;
}
@@ -1189,6 +1200,7 @@ static int qtnf_pcie_probe(struct pci_dev *pdev, const
struct pci_device_id *id)
pcie_priv->pcie_irq_count = 0;
pcie_priv->pcie_irq_rx_count = 0;
pcie_priv->pcie_irq_tx_count = 0;
+ pcie_priv->pcie_irq_uf_count = 0;
pcie_priv->tx_reclaim_done = 0;
pcie_priv->tx_reclaim_req = 0;
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_bus_priv.h
b/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_bus_priv.h
index 1b37914299e9..698e42132ed4 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_bus_priv.h
+++ b/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_bus_priv.h
@@ -78,6 +78,7 @@ struct qtnf_pcie_bus_priv {
u32 pcie_irq_count;
u32 pcie_irq_rx_count;
u32 pcie_irq_tx_count;
+ u32 pcie_irq_uf_count;
u32 tx_full_count;
u32 tx_done_count;
u32 tx_reclaim_done;
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_ipc.h
b/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_ipc.h
index e00d508fbcf0..667f5ec457e3 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_ipc.h
+++ b/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_ipc.h
@@ -50,6 +50,7 @@
#define PCIE_HDP_INT_RX_BITS (0 \
| PCIE_HDP_INT_EP_TXDMA \
| PCIE_HDP_INT_EP_TXEMPTY \
+ | PCIE_HDP_INT_HHBM_UF \
)
#define PCIE_HDP_INT_TX_BITS (0 \
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_regs_pearl.h
b/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_regs_pearl.h
index 78715b8a8ef9..69696f118769 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_regs_pearl.h
+++ b/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_regs_pearl.h
@@ -333,6 +333,7 @@
#define PCIE_HDP_INT_RX_LEN_ERR (BIT(2))
#define PCIE_HDP_INT_RX_HDR_LEN_ERR (BIT(3))
#define PCIE_HDP_INT_EP_TXDMA (BIT(12))
+#define PCIE_HDP_INT_HHBM_UF (BIT(13))
#define PCIE_HDP_INT_EP_TXEMPTY (BIT(15))
#define PCIE_HDP_INT_IPC (BIT(29))
--
2.11.0
