igb: Update firmware version info for ethtool output.

There are multiple places in our device nvm where the version is stored.
This update fixes some output errors with some types of images and
refactors the way the version data is gathered and stored for ethtool output.

Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 70 insertions, 0 deletions

diff --git a/drivers/net/ethernet/intel/igb/e1000_nvm.c b/drivers/net/ethernet/intel/igb/e1000_nvm.c
index aa5fcdf3f357..54ff53905ffe 100644
--- a/drivers/net/ethernet/intel/igb/e1000_nvm.c
+++ b/drivers/net/ethernet/intel/igb/e1000_nvm.c
@@ -710,3 +710,73 @@ s32 igb_update_nvm_checksum(struct e1000_hw *hw)
 out:
 	return ret_val;
 }
+
+/**
+ *  igb_get_fw_version - Get firmware version information
+ *  @hw: pointer to the HW structure
+ *  @fw_vers: pointer to output structure
+ *
+ *  unsupported MAC types will return all 0 version structure
+ **/
+void igb_get_fw_version(struct e1000_hw *hw, struct e1000_fw_version *fw_vers)
+{
+	u16 eeprom_verh, eeprom_verl, comb_verh, comb_verl, comb_offset;
+	u16 fw_version;
+
+	memset(fw_vers, 0, sizeof(struct e1000_fw_version));
+
+	switch (hw->mac.type) {
+	case e1000_i211:
+		return;
+	case e1000_82575:
+	case e1000_82576:
+	case e1000_82580:
+	case e1000_i350:
+	case e1000_i210:
+		break;
+	default:
+		return;
+	}
+	/* basic eeprom version numbers */
+	hw->nvm.ops.read(hw, NVM_VERSION, 1, &fw_version);
+	fw_vers->eep_major = (fw_version & NVM_MAJOR_MASK) >> NVM_MAJOR_SHIFT;
+	fw_vers->eep_minor = (fw_version & NVM_MINOR_MASK);
+
+	/* etrack id */
+	hw->nvm.ops.read(hw, NVM_ETRACK_WORD, 1, &eeprom_verl);
+	hw->nvm.ops.read(hw, (NVM_ETRACK_WORD + 1), 1, &eeprom_verh);
+	fw_vers->etrack_id = (eeprom_verh << NVM_ETRACK_SHIFT) | eeprom_verl;
+
+	switch (hw->mac.type) {
+	case e1000_i210:
+	case e1000_i350:
+		/* find combo image version */
+		hw->nvm.ops.read(hw, NVM_COMB_VER_PTR, 1, &comb_offset);
+		if ((comb_offset != 0x0) && (comb_offset != NVM_VER_INVALID)) {
+
+			hw->nvm.ops.read(hw, (NVM_COMB_VER_OFF + comb_offset
+					 + 1), 1, &comb_verh);
+			hw->nvm.ops.read(hw, (NVM_COMB_VER_OFF + comb_offset),
+					 1, &comb_verl);
+
+			/* get Option Rom version if it exists and is valid */
+			if ((comb_verh && comb_verl) &&
+			    ((comb_verh != NVM_VER_INVALID) &&
+			     (comb_verl != NVM_VER_INVALID))) {
+
+				fw_vers->or_valid = true;
+				fw_vers->or_major =
+					comb_verl >> NVM_COMB_VER_SHFT;
+				fw_vers->or_build =
+					((comb_verl << NVM_COMB_VER_SHFT)
+					| (comb_verh >> NVM_COMB_VER_SHFT));
+				fw_vers->or_patch =
+					comb_verh & NVM_COMB_VER_MASK;
+			}
+		}
+		break;
+	default:
+		break;
+	}
+	return;
+}