net/ice: fix EEPROM data

Kernel driver reads EEPROM data from flash but DPDK reads from
shadow ram. This patch fixes the issue by changing method to get
EEPROM data from flash.

Fixes: 68a1ab82ad74 ("net/ice: speed up to retrieve EEPROM")
Cc: stable@dpdk.org
Signed-off-by: Shougang Wang <shougangx.wang@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>

diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c
index b51fa2f..32c6b4d 100644 (file)
--- a/drivers/net/ice/ice_ethdev.c
+++ b/drivers/net/ice/ice_ethdev.c
@@ -3979,8 +3979,7 @@ ice_get_eeprom_length(struct rte_eth_dev *dev)
 {
        struct ice_hw *hw = ICE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 
-       /* Convert word count to byte count */
-       return hw->nvm.sr_words << 1;
+       return hw->nvm.flash_size;
 }
 
 static int
@@ -3988,26 +3987,24 @@ ice_get_eeprom(struct rte_eth_dev *dev,
               struct rte_dev_eeprom_info *eeprom)
 {
        struct ice_hw *hw = ICE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-       uint16_t *data = eeprom->data;
-       uint16_t first_word, last_word, nwords;
        enum ice_status status = ICE_SUCCESS;
+       uint8_t *data = eeprom->data;
 
-       first_word = eeprom->offset >> 1;
-       last_word = (eeprom->offset + eeprom->length - 1) >> 1;
-       nwords = last_word - first_word + 1;
+       eeprom->magic = hw->vendor_id | (hw->device_id << 16);
 
-       if (first_word >= hw->nvm.sr_words ||
-           last_word >= hw->nvm.sr_words) {
-               PMD_DRV_LOG(ERR, "Requested EEPROM bytes out of range.");
-               return -EINVAL;
+       status = ice_acquire_nvm(hw, ICE_RES_READ);
+       if (status) {
+               PMD_DRV_LOG(ERR, "acquire nvm failed.");
+               return -EIO;
        }
 
-       eeprom->magic = hw->vendor_id | (hw->device_id << 16);
+       status = ice_read_flat_nvm(hw, eeprom->offset, &eeprom->length,
+                                  data, false);
+
+       ice_release_nvm(hw);
 
-       status = ice_read_sr_buf(hw, first_word, &nwords, data);
        if (status) {
                PMD_DRV_LOG(ERR, "EEPROM read failed.");
-               eeprom->length = sizeof(uint16_t) * nwords;
                return -EIO;
        }