diff options
| -rw-r--r-- | hw/npu2-opencapi.c | 29 | ||||
| -rw-r--r-- | include/npu2-regs.h | 5 |
2 files changed, 33 insertions, 1 deletions
diff --git a/hw/npu2-opencapi.c b/hw/npu2-opencapi.c index da86b46..65f623c 100644 --- a/hw/npu2-opencapi.c +++ b/hw/npu2-opencapi.c @@ -174,6 +174,30 @@ static uint64_t get_odl_training_status(uint32_t gcid, uint64_t index) return reg; } +static uint64_t get_odl_endpoint_info(uint32_t gcid, uint64_t index) +{ + uint64_t status_xscom, reg; + + switch (index) { + case 2: + status_xscom = OB0_ODL0_ENDPOINT_INFO; + break; + case 3: + status_xscom = OB0_ODL1_ENDPOINT_INFO; + break; + case 4: + status_xscom = OB3_ODL1_ENDPOINT_INFO; + break; + case 5: + status_xscom = OB3_ODL0_ENDPOINT_INFO; + break; + default: + assert(false); + } + xscom_read(gcid, status_xscom, ®); + return reg; +} + static void disable_nvlink(uint32_t gcid, int index) { uint64_t phy_config_scom, reg; @@ -1047,9 +1071,12 @@ static int64_t npu2_opencapi_get_link_state(struct pci_slot *slot, uint8_t *val) static void check_trained_link(struct npu2_dev *dev, uint64_t odl_status) { - if (get_link_width(odl_status) != OPAL_SHPC_LINK_UP_x8) + if (get_link_width(odl_status) != OPAL_SHPC_LINK_UP_x8) { OCAPIERR(dev, "Link trained in degraded mode (%016llx)\n", odl_status); + OCAPIDBG(dev, "Link endpoint info: %016llx\n", + get_odl_endpoint_info(dev->npu->chip_id, dev->brick_index)); + } } static int64_t npu2_opencapi_retry_state(struct pci_slot *slot, diff --git a/include/npu2-regs.h b/include/npu2-regs.h index c5096dd..10a2816 100644 --- a/include/npu2-regs.h +++ b/include/npu2-regs.h @@ -751,4 +751,9 @@ void npu2_scom_write(uint64_t gcid, uint64_t scom_base, #define OB3_ODL1_TRAINING_STATUS 0xC01082F #define OB_ODL_TRAINING_STATUS_STS_RX_PATTERN_B PPC_BITMASK(8, 15) +#define OB0_ODL0_ENDPOINT_INFO 0x9010832 +#define OB0_ODL1_ENDPOINT_INFO 0x9010833 +#define OB3_ODL0_ENDPOINT_INFO 0xC010832 +#define OB3_ODL1_ENDPOINT_INFO 0xC010833 + #endif /* __NPU2_REGS_H */ |