From: Chengchang Tang tangchengchang@huawei.com
This patch makes more registers dumped in the dump_reg API to help loacte the fault.
Signed-off-by: Chengchang Tang tangchengchang@huawei.com Signed-off-by: Lijun Ou oulijun@huawei.com --- drivers/net/hns3/hns3_cmd.h | 13 ++++ drivers/net/hns3/hns3_regs.c | 171 ++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 180 insertions(+), 4 deletions(-)
diff --git a/drivers/net/hns3/hns3_cmd.h b/drivers/net/hns3/hns3_cmd.h index ff424a0..2e23f99 100644 --- a/drivers/net/hns3/hns3_cmd.h +++ b/drivers/net/hns3/hns3_cmd.h @@ -95,6 +95,19 @@ enum hns3_opcode_type { HNS3_OPC_QUERY_REG_NUM = 0x0040, HNS3_OPC_QUERY_32_BIT_REG = 0x0041, HNS3_OPC_QUERY_64_BIT_REG = 0x0042, + HNS3_OPC_DFX_BD_NUM = 0x0043, + HNS3_OPC_DFX_BIOS_COMMON_REG = 0x0044, + HNS3_OPC_DFX_SSU_REG_0 = 0x0045, + HNS3_OPC_DFX_SSU_REG_1 = 0x0046, + HNS3_OPC_DFX_IGU_EGU_REG = 0x0047, + HNS3_OPC_DFX_RPU_REG_0 = 0x0048, + HNS3_OPC_DFX_RPU_REG_1 = 0x0049, + HNS3_OPC_DFX_NCSI_REG = 0x004A, + HNS3_OPC_DFX_RTC_REG = 0x004B, + HNS3_OPC_DFX_PPP_REG = 0x004C, + HNS3_OPC_DFX_RCB_REG = 0x004D, + HNS3_OPC_DFX_TQP_REG = 0x004E, + HNS3_OPC_DFX_SSU_REG_2 = 0x004F,
HNS3_OPC_QUERY_DEV_SPECS = 0x0050,
diff --git a/drivers/net/hns3/hns3_regs.c b/drivers/net/hns3/hns3_regs.c index 84f3157..4022bb9 100644 --- a/drivers/net/hns3/hns3_regs.c +++ b/drivers/net/hns3/hns3_regs.c @@ -15,6 +15,8 @@ #define REG_NUM_PER_LINE 4 #define REG_LEN_PER_LINE (REG_NUM_PER_LINE * sizeof(uint32_t))
+static int hns3_get_dfx_reg_line(struct hns3_hw *hw, uint32_t *length); + static const uint32_t cmdq_reg_addrs[] = {HNS3_CMDQ_TX_ADDR_L_REG, HNS3_CMDQ_TX_ADDR_H_REG, HNS3_CMDQ_TX_DEPTH_REG, @@ -77,6 +79,21 @@ static const uint32_t tqp_intr_reg_addrs[] = {HNS3_TQP_INTR_CTRL_REG, HNS3_TQP_INTR_GL2_REG, HNS3_TQP_INTR_RL_REG};
+static const uint32_t hns3_dfx_reg_opcode_list[] = { + HNS3_OPC_DFX_BIOS_COMMON_REG, + HNS3_OPC_DFX_SSU_REG_0, + HNS3_OPC_DFX_SSU_REG_1, + HNS3_OPC_DFX_IGU_EGU_REG, + HNS3_OPC_DFX_RPU_REG_0, + HNS3_OPC_DFX_RPU_REG_1, + HNS3_OPC_DFX_NCSI_REG, + HNS3_OPC_DFX_RTC_REG, + HNS3_OPC_DFX_PPP_REG, + HNS3_OPC_DFX_RCB_REG, + HNS3_OPC_DFX_TQP_REG, + HNS3_OPC_DFX_SSU_REG_2 +}; + static int hns3_get_regs_num(struct hns3_hw *hw, uint32_t *regs_num_32_bit, uint32_t *regs_num_64_bit) @@ -123,14 +140,21 @@ hns3_get_regs_length(struct hns3_hw *hw, uint32_t *length) if (!hns->is_vf) { ret = hns3_get_regs_num(hw, ®s_num_32_bit, ®s_num_64_bit); if (ret) { - hns3_err(hw, "Get register number failed, ret = %d.", - ret); - return -ENOTSUP; + hns3_err(hw, "fail to get the number of registers, " + "ret = %d.", ret); + return ret; } dfx_reg_lines = regs_num_32_bit * sizeof(uint32_t) / REG_LEN_PER_LINE + 1; dfx_reg_lines += regs_num_64_bit * sizeof(uint64_t) / REG_LEN_PER_LINE + 1; + + ret = hns3_get_dfx_reg_line(hw, &dfx_reg_lines); + if (ret) { + hns3_err(hw, "fail to get the number of dfx registers, " + "ret = %d.", ret); + return ret; + } len += dfx_reg_lines * REG_NUM_PER_LINE; }
@@ -310,6 +334,144 @@ hns3_direct_access_regs(struct hns3_hw *hw, uint32_t *data) return data - origin_data_ptr; }
+static int +hns3_get_dfx_reg_bd_num(struct hns3_hw *hw, uint32_t *bd_num_list, + uint32_t list_size) +{ +#define HNS3_GET_DFX_REG_BD_NUM_SIZE 4 + struct hns3_cmd_desc desc[HNS3_GET_DFX_REG_BD_NUM_SIZE]; + uint32_t index, desc_index; + uint32_t bd_num; + uint32_t i; + int ret; + + for (i = 0; i < HNS3_GET_DFX_REG_BD_NUM_SIZE - 1; i++) { + hns3_cmd_setup_basic_desc(&desc[i], HNS3_OPC_DFX_BD_NUM, true); + desc[i].flag |= rte_cpu_to_le_16(HNS3_CMD_FLAG_NEXT); + } + /* The last BD does not need a next flag */ + hns3_cmd_setup_basic_desc(&desc[i], HNS3_OPC_DFX_BD_NUM, true); + + ret = hns3_cmd_send(hw, desc, HNS3_GET_DFX_REG_BD_NUM_SIZE); + if (ret) { + hns3_err(hw, "fail to get dfx bd num, ret = %d.\n", ret); + return ret; + } + + /* The first data in the first BD is a reserved field */ + for (i = 1; i <= list_size; i++) { + desc_index = i / HNS3_CMD_DESC_DATA_NUM; + index = i % HNS3_CMD_DESC_DATA_NUM; + bd_num = rte_le_to_cpu_32(desc[desc_index].data[index]); + bd_num_list[i - 1] = bd_num; + } + + return 0; +} + +static int +hns3_dfx_reg_cmd_send(struct hns3_hw *hw, struct hns3_cmd_desc *desc, + int bd_num, uint32_t opcode) +{ + int ret; + int i; + + for (i = 0; i < bd_num - 1; i++) { + hns3_cmd_setup_basic_desc(&desc[i], opcode, true); + desc[i].flag |= rte_cpu_to_le_16(HNS3_CMD_FLAG_NEXT); + } + /* The last BD does not need a next flag */ + hns3_cmd_setup_basic_desc(&desc[i], opcode, true); + + ret = hns3_cmd_send(hw, desc, bd_num); + if (ret) { + hns3_err(hw, "fail to query dfx registers, opcode = 0x%04X, " + "ret = %d.\n", opcode, ret); + } + + return ret; +} + +static int +hns3_dfx_reg_fetch_data(struct hns3_cmd_desc *desc, int bd_num, uint32_t *reg) +{ + int desc_index; + int reg_num; + int index; + int i; + + reg_num = bd_num * HNS3_CMD_DESC_DATA_NUM; + for (i = 0; i < reg_num; i++) { + desc_index = i / HNS3_CMD_DESC_DATA_NUM; + index = i % HNS3_CMD_DESC_DATA_NUM; + *reg++ = desc[desc_index].data[index]; + } + reg_num += hns3_insert_reg_separator(reg_num, reg); + + return reg_num; +} + +static int +hns3_get_dfx_reg_line(struct hns3_hw *hw, uint32_t *lines) +{ + int opcode_num = RTE_DIM(hns3_dfx_reg_opcode_list); + uint32_t bd_num_list[opcode_num]; + uint32_t bd_num, data_len; + int ret; + int i; + + ret = hns3_get_dfx_reg_bd_num(hw, bd_num_list, opcode_num); + if (ret) + return ret; + + for (i = 0; i < opcode_num; i++) { + bd_num = bd_num_list[i]; + data_len = bd_num * HNS3_CMD_DESC_DATA_NUM * sizeof(uint32_t); + *lines += data_len / REG_LEN_PER_LINE + 1; + } + + return 0; +} + +static int +hns3_get_dfx_regs(struct hns3_hw *hw, void **data) +{ + int opcode_num = RTE_DIM(hns3_dfx_reg_opcode_list); + uint32_t max_bd_num, bd_num, opcode; + uint32_t bd_num_list[opcode_num]; + struct hns3_cmd_desc *cmd_descs; + uint32_t *reg_val = (uint32_t *)*data; + int ret; + int i; + + ret = hns3_get_dfx_reg_bd_num(hw, bd_num_list, opcode_num); + if (ret) + return ret; + + max_bd_num = 0; + for (i = 0; i < opcode_num; i++) + max_bd_num = RTE_MAX(bd_num_list[i], max_bd_num); + + cmd_descs = rte_zmalloc(NULL, sizeof(*cmd_descs) * max_bd_num, 0); + if (cmd_descs == NULL) + return -ENOMEM; + + for (i = 0; i < opcode_num; i++) { + opcode = hns3_dfx_reg_opcode_list[i]; + bd_num = bd_num_list[i]; + if (bd_num == 0) + continue; + ret = hns3_dfx_reg_cmd_send(hw, cmd_descs, bd_num, opcode); + if (ret) + break; + reg_val += hns3_dfx_reg_fetch_data(cmd_descs, bd_num, reg_val); + } + rte_free(cmd_descs); + *data = (void *)reg_val; + + return ret; +} + int hns3_get_regs(struct rte_eth_dev *eth_dev, struct rte_dev_reg_info *regs) { @@ -371,5 +533,6 @@ hns3_get_regs(struct rte_eth_dev *eth_dev, struct rte_dev_reg_info *regs) data += regs_num_64_bit * HNS3_64_BIT_REG_SIZE; data += hns3_insert_reg_separator(regs_num_64_bit * HNS3_64_BIT_REG_SIZE, data); - return ret; + + return hns3_get_dfx_regs(hw, (void **)&data); }