Messages in this thread Patch in this message | | | From | Huazhong Tan <> | Subject | [PATCH net-next 10/12] net: hns3: delay setting of reset level for HW errors until slot_reset is called | Date | Fri, 31 May 2019 16:54:56 +0800 |
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From: Shiju Jose <shiju.jose@huawei.com>
Presently the error handling code sets the reset level required for the recovery of the hw errors to the reset framework in the error_detected AER callback. However the rest_event would be called later from the slot_reset callback. This can cause issue of using the wrong reset_level if a high priority reset request occur before the slot_reset is called.
This patch delays setting of the reset level, required for the hw errors, to the reset framework until the slot_reset is called.
Reported-by: Salil Mehta <salil.mehta@huawei.com> Signed-off-by: Shiju Jose <shiju.jose@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> --- drivers/net/ethernet/hisilicon/hns3/hnae3.h | 6 ++- drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 16 ++++-- .../net/ethernet/hisilicon/hns3/hns3pf/hclge_err.c | 61 ++++++++++------------ .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 14 +++-- .../ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 12 +++-- 5 files changed, 63 insertions(+), 46 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h index 2e478d9..6b03e7c 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h +++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h @@ -220,6 +220,7 @@ struct hnae3_ae_dev { struct list_head node; u32 flag; u8 override_pci_need_reset; /* fix to stop multiple reset happening */ + unsigned long hw_err_reset_req; enum hnae3_dev_type dev_type; enum hnae3_reset_type reset_type; void *priv; @@ -466,8 +467,9 @@ struct hnae3_ae_ops { u16 vlan, u8 qos, __be16 proto); int (*enable_hw_strip_rxvtag)(struct hnae3_handle *handle, bool enable); void (*reset_event)(struct pci_dev *pdev, struct hnae3_handle *handle); - void (*set_default_reset_request)(struct hnae3_ae_dev *ae_dev, - enum hnae3_reset_type rst_type); + enum hnae3_reset_type + (*set_default_reset_request)(struct hnae3_ae_dev *ae_dev, + unsigned long *rst_type); void (*get_channels)(struct hnae3_handle *handle, struct ethtool_channels *ch); void (*get_tqps_and_rss_info)(struct hnae3_handle *h, diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index 0501b78..434ecc7 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -1938,17 +1938,23 @@ static pci_ers_result_t hns3_slot_reset(struct pci_dev *pdev) { struct hnae3_ae_dev *ae_dev = pci_get_drvdata(pdev); struct device *dev = &pdev->dev; - - dev_info(dev, "requesting reset due to PCI error\n"); + enum hnae3_reset_type reset_type; if (!ae_dev || !ae_dev->ops) return PCI_ERS_RESULT_NONE; /* request the reset */ if (ae_dev->ops->reset_event) { - if (!ae_dev->override_pci_need_reset) - ae_dev->ops->reset_event(pdev, NULL); - + if (!ae_dev->override_pci_need_reset) { + reset_type = + ae_dev->ops->set_default_reset_request(ae_dev, + &ae_dev->hw_err_reset_req); + if (reset_type != HNAE3_NONE_RESET) { + dev_info(dev, + "requesting reset due to PCI error\n"); + ae_dev->ops->reset_event(pdev, NULL); + } + } return PCI_ERS_RESULT_RECOVERED; } diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.c index b4a7e6a..ea97dda 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.c @@ -1069,13 +1069,6 @@ static int hclge_config_ssu_hw_err_int(struct hclge_dev *hdev, bool en) return ret; } -#define HCLGE_SET_DEFAULT_RESET_REQUEST(reset_type) \ - do { \ - if (ae_dev->ops->set_default_reset_request) \ - ae_dev->ops->set_default_reset_request(ae_dev, \ - reset_type); \ - } while (0) - /* hclge_handle_mpf_ras_error: handle all main PF RAS errors * @hdev: pointer to struct hclge_dev * @desc: descriptor for describing the command @@ -1110,7 +1103,7 @@ static int hclge_handle_mpf_ras_error(struct hclge_dev *hdev, reset_level = hclge_log_error(dev, "IMP_TCM_ECC_INT_STS", &hclge_imp_tcm_ecc_int[0], status); - HCLGE_SET_DEFAULT_RESET_REQUEST(reset_level); + set_bit(reset_level, &ae_dev->hw_err_reset_req); } status = le32_to_cpu(desc[0].data[1]); @@ -1118,20 +1111,18 @@ static int hclge_handle_mpf_ras_error(struct hclge_dev *hdev, reset_level = hclge_log_error(dev, "CMDQ_MEM_ECC_INT_STS", &hclge_cmdq_nic_mem_ecc_int[0], status); - HCLGE_SET_DEFAULT_RESET_REQUEST(reset_level); + set_bit(reset_level, &ae_dev->hw_err_reset_req); } - if ((le32_to_cpu(desc[0].data[2])) & BIT(0)) { + if ((le32_to_cpu(desc[0].data[2])) & BIT(0)) dev_warn(dev, "imp_rd_data_poison_err found\n"); - HCLGE_SET_DEFAULT_RESET_REQUEST(HNAE3_NONE_RESET); - } status = le32_to_cpu(desc[0].data[3]); if (status) { reset_level = hclge_log_error(dev, "TQP_INT_ECC_INT_STS", &hclge_tqp_int_ecc_int[0], status); - HCLGE_SET_DEFAULT_RESET_REQUEST(reset_level); + set_bit(reset_level, &ae_dev->hw_err_reset_req); } status = le32_to_cpu(desc[0].data[4]); @@ -1139,7 +1130,7 @@ static int hclge_handle_mpf_ras_error(struct hclge_dev *hdev, reset_level = hclge_log_error(dev, "MSIX_ECC_INT_STS", &hclge_msix_sram_ecc_int[0], status); - HCLGE_SET_DEFAULT_RESET_REQUEST(reset_level); + set_bit(reset_level, &ae_dev->hw_err_reset_req); } /* log SSU(Storage Switch Unit) errors */ @@ -1149,14 +1140,14 @@ static int hclge_handle_mpf_ras_error(struct hclge_dev *hdev, reset_level = hclge_log_error(dev, "SSU_ECC_MULTI_BIT_INT_0", &hclge_ssu_mem_ecc_err_int[0], status); - HCLGE_SET_DEFAULT_RESET_REQUEST(reset_level); + set_bit(reset_level, &ae_dev->hw_err_reset_req); } status = le32_to_cpu(*(desc_data + 3)) & BIT(0); if (status) { dev_warn(dev, "SSU_ECC_MULTI_BIT_INT_1 ssu_mem32_ecc_mbit_err found [error status=0x%x]\n", status); - HCLGE_SET_DEFAULT_RESET_REQUEST(HNAE3_GLOBAL_RESET); + set_bit(HNAE3_GLOBAL_RESET, &ae_dev->hw_err_reset_req); } status = le32_to_cpu(*(desc_data + 4)) & HCLGE_SSU_COMMON_ERR_INT_MASK; @@ -1164,7 +1155,7 @@ static int hclge_handle_mpf_ras_error(struct hclge_dev *hdev, reset_level = hclge_log_error(dev, "SSU_COMMON_ERR_INT", &hclge_ssu_com_err_int[0], status); - HCLGE_SET_DEFAULT_RESET_REQUEST(reset_level); + set_bit(reset_level, &ae_dev->hw_err_reset_req); } /* log IGU(Ingress Unit) errors */ @@ -1173,7 +1164,7 @@ static int hclge_handle_mpf_ras_error(struct hclge_dev *hdev, if (status) { reset_level = hclge_log_error(dev, "IGU_INT_STS", &hclge_igu_int[0], status); - HCLGE_SET_DEFAULT_RESET_REQUEST(reset_level); + set_bit(reset_level, &ae_dev->hw_err_reset_req); } /* log PPP(Programmable Packet Process) errors */ @@ -1184,7 +1175,7 @@ static int hclge_handle_mpf_ras_error(struct hclge_dev *hdev, hclge_log_error(dev, "PPP_MPF_ABNORMAL_INT_ST1", &hclge_ppp_mpf_abnormal_int_st1[0], status); - HCLGE_SET_DEFAULT_RESET_REQUEST(reset_level); + set_bit(reset_level, &ae_dev->hw_err_reset_req); } status = le32_to_cpu(*(desc_data + 3)) & HCLGE_PPP_MPF_INT_ST3_MASK; @@ -1193,7 +1184,7 @@ static int hclge_handle_mpf_ras_error(struct hclge_dev *hdev, hclge_log_error(dev, "PPP_MPF_ABNORMAL_INT_ST3", &hclge_ppp_mpf_abnormal_int_st3[0], status); - HCLGE_SET_DEFAULT_RESET_REQUEST(reset_level); + set_bit(reset_level, &ae_dev->hw_err_reset_req); } /* log PPU(RCB) errors */ @@ -1202,7 +1193,7 @@ static int hclge_handle_mpf_ras_error(struct hclge_dev *hdev, if (status) { dev_warn(dev, "PPU_MPF_ABNORMAL_INT_ST1 %s found\n", "rpu_rx_pkt_ecc_mbit_err"); - HCLGE_SET_DEFAULT_RESET_REQUEST(HNAE3_GLOBAL_RESET); + set_bit(HNAE3_GLOBAL_RESET, &ae_dev->hw_err_reset_req); } status = le32_to_cpu(*(desc_data + 2)); @@ -1211,7 +1202,7 @@ static int hclge_handle_mpf_ras_error(struct hclge_dev *hdev, hclge_log_error(dev, "PPU_MPF_ABNORMAL_INT_ST2", &hclge_ppu_mpf_abnormal_int_st2[0], status); - HCLGE_SET_DEFAULT_RESET_REQUEST(reset_level); + set_bit(reset_level, &ae_dev->hw_err_reset_req); } status = le32_to_cpu(*(desc_data + 3)) & HCLGE_PPU_MPF_INT_ST3_MASK; @@ -1220,7 +1211,7 @@ static int hclge_handle_mpf_ras_error(struct hclge_dev *hdev, hclge_log_error(dev, "PPU_MPF_ABNORMAL_INT_ST3", &hclge_ppu_mpf_abnormal_int_st3[0], status); - HCLGE_SET_DEFAULT_RESET_REQUEST(reset_level); + set_bit(reset_level, &ae_dev->hw_err_reset_req); } /* log TM(Traffic Manager) errors */ @@ -1229,7 +1220,7 @@ static int hclge_handle_mpf_ras_error(struct hclge_dev *hdev, if (status) { reset_level = hclge_log_error(dev, "TM_SCH_RINT", &hclge_tm_sch_rint[0], status); - HCLGE_SET_DEFAULT_RESET_REQUEST(reset_level); + set_bit(reset_level, &ae_dev->hw_err_reset_req); } /* log QCN(Quantized Congestion Control) errors */ @@ -1238,7 +1229,7 @@ static int hclge_handle_mpf_ras_error(struct hclge_dev *hdev, if (status) { reset_level = hclge_log_error(dev, "QCN_FIFO_RINT", &hclge_qcn_fifo_rint[0], status); - HCLGE_SET_DEFAULT_RESET_REQUEST(reset_level); + set_bit(reset_level, &ae_dev->hw_err_reset_req); } status = le32_to_cpu(*(desc_data + 1)) & HCLGE_QCN_ECC_INT_MASK; @@ -1246,7 +1237,7 @@ static int hclge_handle_mpf_ras_error(struct hclge_dev *hdev, reset_level = hclge_log_error(dev, "QCN_ECC_RINT", &hclge_qcn_ecc_rint[0], status); - HCLGE_SET_DEFAULT_RESET_REQUEST(reset_level); + set_bit(reset_level, &ae_dev->hw_err_reset_req); } /* log NCSI errors */ @@ -1255,7 +1246,7 @@ static int hclge_handle_mpf_ras_error(struct hclge_dev *hdev, if (status) { reset_level = hclge_log_error(dev, "NCSI_ECC_INT_RPT", &hclge_ncsi_err_int[0], status); - HCLGE_SET_DEFAULT_RESET_REQUEST(reset_level); + set_bit(reset_level, &ae_dev->hw_err_reset_req); } /* clear all main PF RAS errors */ @@ -1301,7 +1292,7 @@ static int hclge_handle_pf_ras_error(struct hclge_dev *hdev, reset_level = hclge_log_error(dev, "SSU_PORT_BASED_ERR_INT", &hclge_ssu_port_based_err_int[0], status); - HCLGE_SET_DEFAULT_RESET_REQUEST(reset_level); + set_bit(reset_level, &ae_dev->hw_err_reset_req); } status = le32_to_cpu(desc[0].data[1]); @@ -1309,7 +1300,7 @@ static int hclge_handle_pf_ras_error(struct hclge_dev *hdev, reset_level = hclge_log_error(dev, "SSU_FIFO_OVERFLOW_INT", &hclge_ssu_fifo_overflow_int[0], status); - HCLGE_SET_DEFAULT_RESET_REQUEST(reset_level); + set_bit(reset_level, &ae_dev->hw_err_reset_req); } status = le32_to_cpu(desc[0].data[2]); @@ -1317,7 +1308,7 @@ static int hclge_handle_pf_ras_error(struct hclge_dev *hdev, reset_level = hclge_log_error(dev, "SSU_ETS_TCG_INT", &hclge_ssu_ets_tcg_int[0], status); - HCLGE_SET_DEFAULT_RESET_REQUEST(reset_level); + set_bit(reset_level, &ae_dev->hw_err_reset_req); } /* log IGU(Ingress Unit) EGU(Egress Unit) TNL errors */ @@ -1327,7 +1318,7 @@ static int hclge_handle_pf_ras_error(struct hclge_dev *hdev, reset_level = hclge_log_error(dev, "IGU_EGU_TNL_INT_STS", &hclge_igu_egu_tnl_int[0], status); - HCLGE_SET_DEFAULT_RESET_REQUEST(reset_level); + set_bit(reset_level, &ae_dev->hw_err_reset_req); } /* log PPU(RCB) errors */ @@ -1337,7 +1328,7 @@ static int hclge_handle_pf_ras_error(struct hclge_dev *hdev, reset_level = hclge_log_error(dev, "PPU_PF_ABNORMAL_INT_ST0", &hclge_ppu_pf_abnormal_int[0], status); - HCLGE_SET_DEFAULT_RESET_REQUEST(reset_level); + set_bit(reset_level, &ae_dev->hw_err_reset_req); } /* clear all PF RAS errors */ @@ -1531,7 +1522,7 @@ static void hclge_handle_rocee_ras_error(struct hnae3_ae_dev *ae_dev) reset_type = hclge_log_and_clear_rocee_ras_error(hdev); if (reset_type != HNAE3_NONE_RESET) - HCLGE_SET_DEFAULT_RESET_REQUEST(reset_type); + set_bit(reset_type, &ae_dev->hw_err_reset_req); } static const struct hclge_hw_blk hw_blk[] = { @@ -1596,6 +1587,10 @@ pci_ers_result_t hclge_handle_hw_ras_error(struct hnae3_ae_dev *ae_dev) status = hclge_read_dev(&hdev->hw, HCLGE_RAS_PF_OTHER_INT_STS_REG); + if (status & HCLGE_RAS_REG_NFE_MASK || + status & HCLGE_RAS_REG_ROCEE_ERR_MASK) + ae_dev->hw_err_reset_req = 0; + /* Handling Non-fatal HNS RAS errors */ if (status & HCLGE_RAS_REG_NFE_MASK) { dev_warn(dev, diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index 4873a8e..7976660 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -37,6 +37,8 @@ static int hclge_set_umv_space(struct hclge_dev *hdev, u16 space_size, u16 *allocated_size, bool is_alloc); static void hclge_rfs_filter_expire(struct hclge_dev *hdev); static void hclge_clear_arfs_rules(struct hnae3_handle *handle); +static enum hnae3_reset_type hclge_get_reset_level(struct hclge_dev *hdev, + unsigned long *addr); static struct hnae3_ae_algo ae_algo; @@ -3415,12 +3417,18 @@ static void hclge_reset_event(struct pci_dev *pdev, struct hnae3_handle *handle) hdev->reset_level++; } -static void hclge_set_def_reset_request(struct hnae3_ae_dev *ae_dev, - enum hnae3_reset_type rst_type) +static enum hnae3_reset_type + hclge_set_def_reset_request(struct hnae3_ae_dev *ae_dev, + unsigned long *rst_type) { struct hclge_dev *hdev = ae_dev->priv; + enum hnae3_reset_type reset_type; + + reset_type = hclge_get_reset_level(hdev, rst_type); + if (reset_type != HNAE3_NONE_RESET) + set_bit(reset_type, &hdev->default_reset_request); - set_bit(rst_type, &hdev->default_reset_request); + return reset_type; } static void hclge_reset_timer(struct timer_list *t) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c index 87a619d..0ad561e 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c @@ -1568,12 +1568,18 @@ static void hclgevf_reset_event(struct pci_dev *pdev, hdev->last_reset_time = jiffies; } -static void hclgevf_set_def_reset_request(struct hnae3_ae_dev *ae_dev, - enum hnae3_reset_type rst_type) +static enum hnae3_reset_type + hclgevf_set_def_reset_request(struct hnae3_ae_dev *ae_dev, + unsigned long *rst_type) { struct hclgevf_dev *hdev = ae_dev->priv; + enum hnae3_reset_type reset_type; - set_bit(rst_type, &hdev->default_reset_request); + reset_type = hclgevf_get_reset_level(hdev, rst_type); + if (reset_type != HNAE3_NONE_RESET) + set_bit(reset_type, &hdev->default_reset_request); + + return reset_type; } static void hclgevf_flr_prepare(struct hnae3_ae_dev *ae_dev) -- 2.7.4
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