From: Oded Gabbay ogabbay@kernel.org
[ Upstream commit 26ef1c000bc21a192618c9ec651dd36ba63ca00c ]
Various AXI errors can occur in the NIC engines and are reported to the driver by the f/w. Add code to print the errors and ack them to the f/w.
Signed-off-by: Oded Gabbay ogabbay@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/misc/habanalabs/gaudi/gaudi.c | 48 +++++++++++++++++++++++++++ 1 file changed, 48 insertions(+)
diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c index 013c6da2e3ca..b4dacea80151 100644 --- a/drivers/misc/habanalabs/gaudi/gaudi.c +++ b/drivers/misc/habanalabs/gaudi/gaudi.c @@ -7819,6 +7819,48 @@ static void gaudi_print_fw_alive_info(struct hl_device *hdev, fw_alive->thread_id, fw_alive->uptime_seconds); }
+static void gaudi_print_nic_axi_irq_info(struct hl_device *hdev, u16 event_type, + void *data) +{ + char desc[64] = "", *type; + struct eq_nic_sei_event *eq_nic_sei = data; + u16 nic_id = event_type - GAUDI_EVENT_NIC_SEI_0; + + switch (eq_nic_sei->axi_error_cause) { + case RXB: + type = "RXB"; + break; + case RXE: + type = "RXE"; + break; + case TXS: + type = "TXS"; + break; + case TXE: + type = "TXE"; + break; + case QPC_RESP: + type = "QPC_RESP"; + break; + case NON_AXI_ERR: + type = "NON_AXI_ERR"; + break; + case TMR: + type = "TMR"; + break; + default: + dev_err(hdev->dev, "unknown NIC AXI cause %d\n", + eq_nic_sei->axi_error_cause); + type = "N/A"; + break; + } + + snprintf(desc, sizeof(desc), "NIC%d_%s%d", nic_id, type, + eq_nic_sei->id); + dev_err_ratelimited(hdev->dev, "Received H/W interrupt %d ["%s"]\n", + event_type, desc); +} + static int gaudi_non_hard_reset_late_init(struct hl_device *hdev) { /* GAUDI doesn't support any reset except hard-reset */ @@ -8066,6 +8108,7 @@ static void gaudi_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_entry) { struct gaudi_device *gaudi = hdev->asic_specific; + u64 data = le64_to_cpu(eq_entry->data[0]); u32 ctl = le32_to_cpu(eq_entry->hdr.ctl); u32 fw_fatal_err_flag = 0; u16 event_type = ((ctl & EQ_CTL_EVENT_TYPE_MASK) @@ -8263,6 +8306,11 @@ static void gaudi_handle_eqe(struct hl_device *hdev, hl_fw_unmask_irq(hdev, event_type); break;
+ case GAUDI_EVENT_NIC_SEI_0 ... GAUDI_EVENT_NIC_SEI_4: + gaudi_print_nic_axi_irq_info(hdev, event_type, &data); + hl_fw_unmask_irq(hdev, event_type); + break; + case GAUDI_EVENT_DMA_IF_SEI_0 ... GAUDI_EVENT_DMA_IF_SEI_3: gaudi_print_irq_info(hdev, event_type, false); gaudi_print_sm_sei_info(hdev, event_type,