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dpdk/0045-net-hns3-support-module-EEPROM-dump.patch
speech_white 3a8995b1ad Update DPDK baseline version 
Update DPDK version from 19.11 to 20.11 and also support
hns3 PMD for Kunpeng 920 and Kunpeng 930.

Signed-off-by: speech_white <humin29@huawei.com>
2021-06-28 00:52:34 +00:00

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From 4d36d14e1683f50904525e26fbf311c0aa677940 Mon Sep 17 00:00:00 2001
From: Chengchang Tang <tangchengchang@huawei.com>
Date: Thu, 4 Mar 2021 15:44:41 +0800
Subject: [PATCH 045/189] net/hns3: support module EEPROM dump
This patch add support for dumping module EEPROM.
Signed-off-by: Chengchang Tang <tangchengchang@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
---
doc/guides/nics/features/hns3.ini | 1 +
drivers/net/hns3/hns3_cmd.h | 16 ++++
drivers/net/hns3/hns3_ethdev.c | 159 ++++++++++++++++++++++++++++++++++++++
3 files changed, 176 insertions(+)
diff --git a/doc/guides/nics/features/hns3.ini b/doc/guides/nics/features/hns3.ini
index f0747e3..5ccaca5 100644
--- a/doc/guides/nics/features/hns3.ini
+++ b/doc/guides/nics/features/hns3.ini
@@ -38,6 +38,7 @@ Extended stats = Y
Stats per queue = Y
FW version = Y
Registers dump = Y
+Module EEPROM dump = Y
Multiprocess aware = Y
Linux UIO = Y
Linux VFIO = Y
diff --git a/drivers/net/hns3/hns3_cmd.h b/drivers/net/hns3/hns3_cmd.h
index 5010278..ff424a0 100644
--- a/drivers/net/hns3/hns3_cmd.h
+++ b/drivers/net/hns3/hns3_cmd.h
@@ -211,6 +211,8 @@ enum hns3_opcode_type {
HNS3_OPC_FIRMWARE_COMPAT_CFG = 0x701A,
/* SFP command */
+ HNS3_OPC_GET_SFP_EEPROM = 0x7100,
+ HNS3_OPC_GET_SFP_EXIST = 0x7101,
HNS3_OPC_SFP_GET_SPEED = 0x7104,
/* Interrupts commands */
@@ -714,6 +716,20 @@ struct hns3_config_auto_neg_cmd {
#define HNS3_MAC_FEC_BASER 1
#define HNS3_MAC_FEC_RS 2
+#define HNS3_SFP_INFO_BD0_LEN 20UL
+#define HNS3_SFP_INFO_BDX_LEN 24UL
+
+struct hns3_sfp_info_bd0_cmd {
+ uint16_t offset;
+ uint16_t read_len;
+ uint8_t data[HNS3_SFP_INFO_BD0_LEN];
+};
+
+struct hns3_sfp_type {
+ uint8_t type;
+ uint8_t ext_type;
+};
+
struct hns3_sfp_speed_cmd {
uint32_t sfp_speed;
uint8_t query_type; /* 0: sfp speed, 1: active fec */
diff --git a/drivers/net/hns3/hns3_ethdev.c b/drivers/net/hns3/hns3_ethdev.c
index 7ed55b1..2a37fcc 100644
--- a/drivers/net/hns3/hns3_ethdev.c
+++ b/drivers/net/hns3/hns3_ethdev.c
@@ -6172,6 +6172,163 @@ hns3_query_dev_fec_info(struct hns3_hw *hw)
return ret;
}
+static bool
+hns3_optical_module_existed(struct hns3_hw *hw)
+{
+ struct hns3_cmd_desc desc;
+ bool existed;
+ int ret;
+
+ hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_GET_SFP_EXIST, true);
+ ret = hns3_cmd_send(hw, &desc, 1);
+ if (ret) {
+ hns3_err(hw,
+ "fail to get optical module exist state, ret = %d.\n",
+ ret);
+ return false;
+ }
+ existed = !!desc.data[0];
+
+ return existed;
+}
+
+static int
+hns3_get_module_eeprom_data(struct hns3_hw *hw, uint32_t offset,
+ uint32_t len, uint8_t *data)
+{
+#define HNS3_SFP_INFO_CMD_NUM 6
+#define HNS3_SFP_INFO_MAX_LEN \
+ (HNS3_SFP_INFO_BD0_LEN + \
+ (HNS3_SFP_INFO_CMD_NUM - 1) * HNS3_SFP_INFO_BDX_LEN)
+ struct hns3_cmd_desc desc[HNS3_SFP_INFO_CMD_NUM];
+ struct hns3_sfp_info_bd0_cmd *sfp_info_bd0;
+ uint16_t read_len;
+ uint16_t copy_len;
+ int ret;
+ int i;
+
+ for (i = 0; i < HNS3_SFP_INFO_CMD_NUM; i++) {
+ hns3_cmd_setup_basic_desc(&desc[i], HNS3_OPC_GET_SFP_EEPROM,
+ true);
+ if (i < HNS3_SFP_INFO_CMD_NUM - 1)
+ desc[i].flag |= rte_cpu_to_le_16(HNS3_CMD_FLAG_NEXT);
+ }
+
+ sfp_info_bd0 = (struct hns3_sfp_info_bd0_cmd *)desc[0].data;
+ sfp_info_bd0->offset = rte_cpu_to_le_16((uint16_t)offset);
+ read_len = RTE_MIN(len, HNS3_SFP_INFO_MAX_LEN);
+ sfp_info_bd0->read_len = rte_cpu_to_le_16((uint16_t)read_len);
+
+ ret = hns3_cmd_send(hw, desc, HNS3_SFP_INFO_CMD_NUM);
+ if (ret) {
+ hns3_err(hw, "fail to get module EEPROM info, ret = %d.\n",
+ ret);
+ return ret;
+ }
+
+ /* The data format in BD0 is different with the others. */
+ copy_len = RTE_MIN(len, HNS3_SFP_INFO_BD0_LEN);
+ memcpy(data, sfp_info_bd0->data, copy_len);
+ read_len = copy_len;
+
+ for (i = 1; i < HNS3_SFP_INFO_CMD_NUM; i++) {
+ if (read_len >= len)
+ break;
+
+ copy_len = RTE_MIN(len - read_len, HNS3_SFP_INFO_BDX_LEN);
+ memcpy(data + read_len, desc[i].data, copy_len);
+ read_len += copy_len;
+ }
+
+ return (int)read_len;
+}
+
+static int
+hns3_get_module_eeprom(struct rte_eth_dev *dev,
+ struct rte_dev_eeprom_info *info)
+{
+ struct hns3_adapter *hns = dev->data->dev_private;
+ struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(hns);
+ uint32_t offset = info->offset;
+ uint32_t len = info->length;
+ uint8_t *data = info->data;
+ uint32_t read_len = 0;
+
+ if (hw->mac.media_type != HNS3_MEDIA_TYPE_FIBER)
+ return -ENOTSUP;
+
+ if (!hns3_optical_module_existed(hw)) {
+ hns3_err(hw, "fail to read module EEPROM: no module is connected.\n");
+ return -EIO;
+ }
+
+ while (read_len < len) {
+ int ret;
+ ret = hns3_get_module_eeprom_data(hw, offset + read_len,
+ len - read_len,
+ data + read_len);
+ if (ret < 0)
+ return -EIO;
+ read_len += ret;
+ }
+
+ return 0;
+}
+
+static int
+hns3_get_module_info(struct rte_eth_dev *dev,
+ struct rte_eth_dev_module_info *modinfo)
+{
+#define HNS3_SFF8024_ID_SFP 0x03
+#define HNS3_SFF8024_ID_QSFP_8438 0x0c
+#define HNS3_SFF8024_ID_QSFP_8436_8636 0x0d
+#define HNS3_SFF8024_ID_QSFP28_8636 0x11
+#define HNS3_SFF_8636_V1_3 0x03
+ struct hns3_adapter *hns = dev->data->dev_private;
+ struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(hns);
+ struct rte_dev_eeprom_info info;
+ struct hns3_sfp_type sfp_type;
+ int ret;
+
+ memset(&sfp_type, 0, sizeof(sfp_type));
+ memset(&info, 0, sizeof(info));
+ info.data = (uint8_t *)&sfp_type;
+ info.length = sizeof(sfp_type);
+ ret = hns3_get_module_eeprom(dev, &info);
+ if (ret)
+ return ret;
+
+ switch (sfp_type.type) {
+ case HNS3_SFF8024_ID_SFP:
+ modinfo->type = RTE_ETH_MODULE_SFF_8472;
+ modinfo->eeprom_len = RTE_ETH_MODULE_SFF_8472_LEN;
+ break;
+ case HNS3_SFF8024_ID_QSFP_8438:
+ modinfo->type = RTE_ETH_MODULE_SFF_8436;
+ modinfo->eeprom_len = RTE_ETH_MODULE_SFF_8436_MAX_LEN;
+ break;
+ case HNS3_SFF8024_ID_QSFP_8436_8636:
+ if (sfp_type.ext_type < HNS3_SFF_8636_V1_3) {
+ modinfo->type = RTE_ETH_MODULE_SFF_8436;
+ modinfo->eeprom_len = RTE_ETH_MODULE_SFF_8436_MAX_LEN;
+ } else {
+ modinfo->type = RTE_ETH_MODULE_SFF_8636;
+ modinfo->eeprom_len = RTE_ETH_MODULE_SFF_8636_MAX_LEN;
+ }
+ break;
+ case HNS3_SFF8024_ID_QSFP28_8636:
+ modinfo->type = RTE_ETH_MODULE_SFF_8636;
+ modinfo->eeprom_len = RTE_ETH_MODULE_SFF_8636_MAX_LEN;
+ break;
+ default:
+ hns3_err(hw, "unknown module, type = %u, extra_type = %u.\n",
+ sfp_type.type, sfp_type.ext_type);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
static const struct eth_dev_ops hns3_eth_dev_ops = {
.dev_configure = hns3_dev_configure,
.dev_start = hns3_dev_start,
@@ -6223,6 +6380,8 @@ static const struct eth_dev_ops hns3_eth_dev_ops = {
.vlan_offload_set = hns3_vlan_offload_set,
.vlan_pvid_set = hns3_vlan_pvid_set,
.get_reg = hns3_get_regs,
+ .get_module_info = hns3_get_module_info,
+ .get_module_eeprom = hns3_get_module_eeprom,
.get_dcb_info = hns3_get_dcb_info,
.dev_supported_ptypes_get = hns3_dev_supported_ptypes_get,
.fec_get_capability = hns3_fec_get_capability,
--
2.7.4
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