[PATCH net-next 2/2] net: hns3: Adds support to dump(using ethool-d) PCIe regs in HNS3 PF driver
From: Salil Mehta
Date: Thu Nov 29 2018 - 11:41:57 EST
From: Jian Shen <shenjian15@xxxxxxxxxx>
This patch adds support to dump PF PCIe registers using ethtool -d
for HNS3 PF Driver.
Signed-off-by: Jian Shen <shenjian15@xxxxxxxxxx>
Signed-off-by: Salil Mehta <salil.mehta@xxxxxxxxxx>
---
.../ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 120 ++++++++++++++++++++-
.../ethernet/hisilicon/hns3/hns3pf/hclge_main.h | 56 ++++++++++
2 files changed, 171 insertions(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 1c8cf84..8432c84 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -48,6 +48,62 @@ static const struct pci_device_id ae_algo_pci_tbl[] = {
MODULE_DEVICE_TABLE(pci, ae_algo_pci_tbl);
+static const u32 cmdq_reg_addr_list[] = {HCLGE_CMDQ_TX_ADDR_L_REG,
+ HCLGE_CMDQ_TX_ADDR_H_REG,
+ HCLGE_CMDQ_TX_DEPTH_REG,
+ HCLGE_CMDQ_TX_TAIL_REG,
+ HCLGE_CMDQ_TX_HEAD_REG,
+ HCLGE_CMDQ_RX_ADDR_L_REG,
+ HCLGE_CMDQ_RX_ADDR_H_REG,
+ HCLGE_CMDQ_RX_DEPTH_REG,
+ HCLGE_CMDQ_RX_TAIL_REG,
+ HCLGE_CMDQ_RX_HEAD_REG,
+ HCLGE_VECTOR0_CMDQ_SRC_REG,
+ HCLGE_CMDQ_INTR_STS_REG,
+ HCLGE_CMDQ_INTR_EN_REG,
+ HCLGE_CMDQ_INTR_GEN_REG};
+
+static const u32 common_reg_addr_list[] = {HCLGE_MISC_VECTOR_REG_BASE,
+ HCLGE_VECTOR0_OTER_EN_REG,
+ HCLGE_MISC_RESET_STS_REG,
+ HCLGE_MISC_VECTOR_INT_STS,
+ HCLGE_GLOBAL_RESET_REG,
+ HCLGE_FUN_RST_ING,
+ HCLGE_GRO_EN_REG};
+
+static const u32 ring_reg_addr_list[] = {HCLGE_RING_RX_ADDR_L_REG,
+ HCLGE_RING_RX_ADDR_H_REG,
+ HCLGE_RING_RX_BD_NUM_REG,
+ HCLGE_RING_RX_BD_LENGTH_REG,
+ HCLGE_RING_RX_MERGE_EN_REG,
+ HCLGE_RING_RX_TAIL_REG,
+ HCLGE_RING_RX_HEAD_REG,
+ HCLGE_RING_RX_FBD_NUM_REG,
+ HCLGE_RING_RX_OFFSET_REG,
+ HCLGE_RING_RX_FBD_OFFSET_REG,
+ HCLGE_RING_RX_STASH_REG,
+ HCLGE_RING_RX_BD_ERR_REG,
+ HCLGE_RING_TX_ADDR_L_REG,
+ HCLGE_RING_TX_ADDR_H_REG,
+ HCLGE_RING_TX_BD_NUM_REG,
+ HCLGE_RING_TX_PRIORITY_REG,
+ HCLGE_RING_TX_TC_REG,
+ HCLGE_RING_TX_MERGE_EN_REG,
+ HCLGE_RING_TX_TAIL_REG,
+ HCLGE_RING_TX_HEAD_REG,
+ HCLGE_RING_TX_FBD_NUM_REG,
+ HCLGE_RING_TX_OFFSET_REG,
+ HCLGE_RING_TX_EBD_NUM_REG,
+ HCLGE_RING_TX_EBD_OFFSET_REG,
+ HCLGE_RING_TX_BD_ERR_REG,
+ HCLGE_RING_EN_REG};
+
+static const u32 tqp_intr_reg_addr_list[] = {HCLGE_TQP_INTR_CTRL_REG,
+ HCLGE_TQP_INTR_GL0_REG,
+ HCLGE_TQP_INTR_GL1_REG,
+ HCLGE_TQP_INTR_GL2_REG,
+ HCLGE_TQP_INTR_RL_REG};
+
static const char hns3_nic_test_strs[][ETH_GSTRING_LEN] = {
"App Loopback test",
"Serdes serial Loopback test",
@@ -7637,8 +7693,15 @@ static int hclge_get_64_bit_regs(struct hclge_dev *hdev, u32 regs_num,
return 0;
}
+#define MAX_SEPARATE_NUM 4
+#define SEPARATOR_VALUE 0xFFFFFFFF
+#define REG_NUM_PER_LINE 4
+#define REG_LEN_PER_LINE (REG_NUM_PER_LINE * sizeof(u32))
+
static int hclge_get_regs_len(struct hnae3_handle *handle)
{
+ int cmdq_lines, common_lines, ring_lines, tqp_intr_lines;
+ struct hnae3_knic_private_info *kinfo = &handle->kinfo;
struct hclge_vport *vport = hclge_get_vport(handle);
struct hclge_dev *hdev = vport->back;
u32 regs_num_32_bit, regs_num_64_bit;
@@ -7651,15 +7714,25 @@ static int hclge_get_regs_len(struct hnae3_handle *handle)
return -EOPNOTSUPP;
}
- return regs_num_32_bit * sizeof(u32) + regs_num_64_bit * sizeof(u64);
+ cmdq_lines = sizeof(cmdq_reg_addr_list) / REG_LEN_PER_LINE + 1;
+ common_lines = sizeof(common_reg_addr_list) / REG_LEN_PER_LINE + 1;
+ ring_lines = sizeof(ring_reg_addr_list) / REG_LEN_PER_LINE + 1;
+ tqp_intr_lines = sizeof(tqp_intr_reg_addr_list) / REG_LEN_PER_LINE + 1;
+
+ return (cmdq_lines + common_lines + ring_lines * kinfo->num_tqps +
+ tqp_intr_lines * (hdev->num_msi_used - 1)) * REG_LEN_PER_LINE +
+ regs_num_32_bit * sizeof(u32) + regs_num_64_bit * sizeof(u64);
}
static void hclge_get_regs(struct hnae3_handle *handle, u32 *version,
void *data)
{
+ struct hnae3_knic_private_info *kinfo = &handle->kinfo;
struct hclge_vport *vport = hclge_get_vport(handle);
struct hclge_dev *hdev = vport->back;
u32 regs_num_32_bit, regs_num_64_bit;
+ int i, j, reg_um, separator_num;
+ u32 *reg = data;
int ret;
*version = hdev->fw_version;
@@ -7671,16 +7744,53 @@ static void hclge_get_regs(struct hnae3_handle *handle, u32 *version,
return;
}
- ret = hclge_get_32_bit_regs(hdev, regs_num_32_bit, data);
+ /* fetching per-PF registers valus from PF PCIe register space */
+ reg_um = sizeof(cmdq_reg_addr_list) / sizeof(u32);
+ separator_num = MAX_SEPARATE_NUM - reg_um % REG_NUM_PER_LINE;
+ for (i = 0; i < reg_um; i++)
+ *reg++ = hclge_read_dev(&hdev->hw, cmdq_reg_addr_list[i]);
+ for (i = 0; i < separator_num; i++)
+ *reg++ = SEPARATOR_VALUE;
+
+ reg_um = sizeof(common_reg_addr_list) / sizeof(u32);
+ separator_num = MAX_SEPARATE_NUM - reg_um % REG_NUM_PER_LINE;
+ for (i = 0; i < reg_um; i++)
+ *reg++ = hclge_read_dev(&hdev->hw, common_reg_addr_list[i]);
+ for (i = 0; i < separator_num; i++)
+ *reg++ = SEPARATOR_VALUE;
+
+ reg_um = sizeof(ring_reg_addr_list) / sizeof(u32);
+ separator_num = MAX_SEPARATE_NUM - reg_um % REG_NUM_PER_LINE;
+ for (j = 0; j < kinfo->num_tqps; j++) {
+ for (i = 0; i < reg_um; i++)
+ *reg++ = hclge_read_dev(&hdev->hw,
+ ring_reg_addr_list[i] +
+ 0x200 * j);
+ for (i = 0; i < separator_num; i++)
+ *reg++ = SEPARATOR_VALUE;
+ }
+
+ reg_um = sizeof(tqp_intr_reg_addr_list) / sizeof(u32);
+ separator_num = MAX_SEPARATE_NUM - reg_um % REG_NUM_PER_LINE;
+ for (j = 0; j < hdev->num_msi_used - 1; j++) {
+ for (i = 0; i < reg_um; i++)
+ *reg++ = hclge_read_dev(&hdev->hw,
+ tqp_intr_reg_addr_list[i] +
+ 4 * j);
+ for (i = 0; i < separator_num; i++)
+ *reg++ = SEPARATOR_VALUE;
+ }
+
+ /* fetching PF common registers values from firmware */
+ ret = hclge_get_32_bit_regs(hdev, regs_num_32_bit, reg);
if (ret) {
dev_err(&hdev->pdev->dev,
"Get 32 bit register failed, ret = %d.\n", ret);
return;
}
- data = (u32 *)data + regs_num_32_bit;
- ret = hclge_get_64_bit_regs(hdev, regs_num_64_bit,
- data);
+ reg += regs_num_32_bit;
+ ret = hclge_get_64_bit_regs(hdev, regs_num_64_bit, reg);
if (ret)
dev_err(&hdev->pdev->dev,
"Get 64 bit register failed, ret = %d.\n", ret);
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
index 0dd23a1..ee60242 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
@@ -28,6 +28,62 @@
#define HCLGE_VECTOR_REG_OFFSET 0x4
#define HCLGE_VECTOR_VF_OFFSET 0x100000
+#define HCLGE_CMDQ_TX_ADDR_L_REG 0x27000
+#define HCLGE_CMDQ_TX_ADDR_H_REG 0x27004
+#define HCLGE_CMDQ_TX_DEPTH_REG 0x27008
+#define HCLGE_CMDQ_TX_TAIL_REG 0x27010
+#define HCLGE_CMDQ_TX_HEAD_REG 0x27014
+#define HCLGE_CMDQ_RX_ADDR_L_REG 0x27018
+#define HCLGE_CMDQ_RX_ADDR_H_REG 0x2701C
+#define HCLGE_CMDQ_RX_DEPTH_REG 0x27020
+#define HCLGE_CMDQ_RX_TAIL_REG 0x27024
+#define HCLGE_CMDQ_RX_HEAD_REG 0x27028
+#define HCLGE_CMDQ_INTR_SRC_REG 0x27100
+#define HCLGE_CMDQ_INTR_STS_REG 0x27104
+#define HCLGE_CMDQ_INTR_EN_REG 0x27108
+#define HCLGE_CMDQ_INTR_GEN_REG 0x2710C
+
+/* bar registers for common func */
+#define HCLGE_VECTOR0_OTER_EN_REG 0x20600
+#define HCLGE_RAS_OTHER_STS_REG 0x20B00
+#define HCLGE_FUNC_RESET_STS_REG 0x20C00
+#define HCLGE_GRO_EN_REG 0x28000
+
+/* bar registers for rcb */
+#define HCLGE_RING_RX_ADDR_L_REG 0x80000
+#define HCLGE_RING_RX_ADDR_H_REG 0x80004
+#define HCLGE_RING_RX_BD_NUM_REG 0x80008
+#define HCLGE_RING_RX_BD_LENGTH_REG 0x8000C
+#define HCLGE_RING_RX_MERGE_EN_REG 0x80014
+#define HCLGE_RING_RX_TAIL_REG 0x80018
+#define HCLGE_RING_RX_HEAD_REG 0x8001C
+#define HCLGE_RING_RX_FBD_NUM_REG 0x80020
+#define HCLGE_RING_RX_OFFSET_REG 0x80024
+#define HCLGE_RING_RX_FBD_OFFSET_REG 0x80028
+#define HCLGE_RING_RX_STASH_REG 0x80030
+#define HCLGE_RING_RX_BD_ERR_REG 0x80034
+#define HCLGE_RING_TX_ADDR_L_REG 0x80040
+#define HCLGE_RING_TX_ADDR_H_REG 0x80044
+#define HCLGE_RING_TX_BD_NUM_REG 0x80048
+#define HCLGE_RING_TX_PRIORITY_REG 0x8004C
+#define HCLGE_RING_TX_TC_REG 0x80050
+#define HCLGE_RING_TX_MERGE_EN_REG 0x80054
+#define HCLGE_RING_TX_TAIL_REG 0x80058
+#define HCLGE_RING_TX_HEAD_REG 0x8005C
+#define HCLGE_RING_TX_FBD_NUM_REG 0x80060
+#define HCLGE_RING_TX_OFFSET_REG 0x80064
+#define HCLGE_RING_TX_EBD_NUM_REG 0x80068
+#define HCLGE_RING_TX_EBD_OFFSET_REG 0x80070
+#define HCLGE_RING_TX_BD_ERR_REG 0x80074
+#define HCLGE_RING_EN_REG 0x80090
+
+/* bar registers for tqp interrupt */
+#define HCLGE_TQP_INTR_CTRL_REG 0x20000
+#define HCLGE_TQP_INTR_GL0_REG 0x20100
+#define HCLGE_TQP_INTR_GL1_REG 0x20200
+#define HCLGE_TQP_INTR_GL2_REG 0x20300
+#define HCLGE_TQP_INTR_RL_REG 0x20900
+
#define HCLGE_RSS_IND_TBL_SIZE 512
#define HCLGE_RSS_SET_BITMAP_MSK GENMASK(15, 0)
#define HCLGE_RSS_KEY_SIZE 40
--
2.7.4