net/e1000: add module EEPROM callbacks for e1000

Add new callbacks for eth_dev_ops of e1000 to get the information and
data of plugin module EEPROM.

Signed-off-by: Zijie Pan <zijie.pan@6wind.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Remy Horton <remy.horton@intel.com>

diff --git a/doc/guides/nics/features/igb.ini b/doc/guides/nics/features/igb.ini
index 33d64d9..c53fd07 100644 (file)
--- a/doc/guides/nics/features/igb.ini
+++ b/doc/guides/nics/features/igb.ini
@@ -41,6 +41,7 @@ Basic stats          = Y
 Extended stats       = Y
 FW version           = Y
 EEPROM dump          = Y
+Module EEPROM dump   = Y
 Registers dump       = Y
 BSD nic_uio          = Y
 Linux UIO            = Y

diff --git a/drivers/net/e1000/base/e1000_phy.h b/drivers/net/e1000/base/e1000_phy.h
index 3e45a9e..2cd0e14 100644 (file)
--- a/drivers/net/e1000/base/e1000_phy.h
+++ b/drivers/net/e1000/base/e1000_phy.h
@@ -330,4 +330,12 @@ struct sfp_e1000_flags {
 #define E1000_SFF_VENDOR_OUI_AVAGO     0x00176A00
 #define E1000_SFF_VENDOR_OUI_INTEL     0x001B2100
 
+/* EEPROM byte offsets */
+#define IGB_SFF_8472_SWAP              0x5C
+#define IGB_SFF_8472_COMP              0x5E
+
+/* Bitmasks */
+#define IGB_SFF_ADDRESSING_MODE        0x4
+#define IGB_SFF_8472_UNSUP             0x00
+
 #endif

diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index 9b808a9..c35c935 100644 (file)
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -223,6 +223,10 @@ static int eth_igb_get_eeprom(struct rte_eth_dev *dev,
                struct rte_dev_eeprom_info *eeprom);
 static int eth_igb_set_eeprom(struct rte_eth_dev *dev,
                struct rte_dev_eeprom_info *eeprom);
+static int eth_igb_get_module_info(struct rte_eth_dev *dev,
+                                  struct rte_eth_dev_module_info *modinfo);
+static int eth_igb_get_module_eeprom(struct rte_eth_dev *dev,
+                                    struct rte_dev_eeprom_info *info);
 static int eth_igb_set_mc_addr_list(struct rte_eth_dev *dev,
                                    struct ether_addr *mc_addr_set,
                                    uint32_t nb_mc_addr);
@@ -402,6 +406,8 @@ static const struct eth_dev_ops eth_igb_ops = {
        .get_eeprom_length    = eth_igb_get_eeprom_length,
        .get_eeprom           = eth_igb_get_eeprom,
        .set_eeprom           = eth_igb_set_eeprom,
+       .get_module_info      = eth_igb_get_module_info,
+       .get_module_eeprom    = eth_igb_get_module_eeprom,
        .timesync_adjust_time = igb_timesync_adjust_time,
        .timesync_read_time   = igb_timesync_read_time,
        .timesync_write_time  = igb_timesync_write_time,
@@ -5328,6 +5334,86 @@ eth_igb_set_eeprom(struct rte_eth_dev *dev,
        return nvm->ops.write(hw,  first, length, data);
 }
 
+static int
+eth_igb_get_module_info(struct rte_eth_dev *dev,
+                       struct rte_eth_dev_module_info *modinfo)
+{
+       struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+       uint32_t status = 0;
+       uint16_t sff8472_rev, addr_mode;
+       bool page_swap = false;
+
+       if (hw->phy.media_type == e1000_media_type_copper ||
+           hw->phy.media_type == e1000_media_type_unknown)
+               return -EOPNOTSUPP;
+
+       /* Check whether we support SFF-8472 or not */
+       status = e1000_read_phy_reg_i2c(hw, IGB_SFF_8472_COMP, &sff8472_rev);
+       if (status)
+               return -EIO;
+
+       /* addressing mode is not supported */
+       status = e1000_read_phy_reg_i2c(hw, IGB_SFF_8472_SWAP, &addr_mode);
+       if (status)
+               return -EIO;
+
+       /* addressing mode is not supported */
+       if ((addr_mode & 0xFF) & IGB_SFF_ADDRESSING_MODE) {
+               PMD_DRV_LOG(ERR,
+                           "Address change required to access page 0xA2, "
+                           "but not supported. Please report the module "
+                           "type to the driver maintainers.\n");
+               page_swap = true;
+       }
+
+       if ((sff8472_rev & 0xFF) == IGB_SFF_8472_UNSUP || page_swap) {
+               /* We have an SFP, but it does not support SFF-8472 */
+               modinfo->type = RTE_ETH_MODULE_SFF_8079;
+               modinfo->eeprom_len = RTE_ETH_MODULE_SFF_8079_LEN;
+       } else {
+               /* We have an SFP which supports a revision of SFF-8472 */
+               modinfo->type = RTE_ETH_MODULE_SFF_8472;
+               modinfo->eeprom_len = RTE_ETH_MODULE_SFF_8472_LEN;
+       }
+
+       return 0;
+}
+
+static int
+eth_igb_get_module_eeprom(struct rte_eth_dev *dev,
+                         struct rte_dev_eeprom_info *info)
+{
+       struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+       uint32_t status = 0;
+       uint16_t dataword[RTE_ETH_MODULE_SFF_8472_LEN / 2 + 1];
+       u16 first_word, last_word;
+       int i = 0;
+
+       if (info->length == 0)
+               return -EINVAL;
+
+       first_word = info->offset >> 1;
+       last_word = (info->offset + info->length - 1) >> 1;
+
+       /* Read EEPROM block, SFF-8079/SFF-8472, word at a time */
+       for (i = 0; i < last_word - first_word + 1; i++) {
+               status = e1000_read_phy_reg_i2c(hw, (first_word + i) * 2,
+                                               &dataword[i]);
+               if (status) {
+                       /* Error occurred while reading module */
+                       return -EIO;
+               }
+
+               dataword[i] = rte_be_to_cpu_16(dataword[i]);
+       }
+
+       memcpy(info->data, (u8 *)dataword + (info->offset & 1), info->length);
+
+       return 0;
+}
+
 static int
 eth_igb_rx_queue_intr_disable(struct rte_eth_dev *dev, uint16_t queue_id)
 {