1 files changed, 212 insertions, 44 deletions

diff --git a/drivers/net/ixgbe/ixgbe_common.c b/drivers/net/ixgbe/ixgbe_common.c
index e3eca131638..d5ede2df3e4 100644
--- a/drivers/net/ixgbe/ixgbe_common.c
+++ b/drivers/net/ixgbe/ixgbe_common.c
@@ -45,14 +45,12 @@ static u16 ixgbe_shift_in_eeprom_bits(struct ixgbe_hw *hw, u16 count);
 static void ixgbe_raise_eeprom_clk(struct ixgbe_hw *hw, u32 *eec);
 static void ixgbe_lower_eeprom_clk(struct ixgbe_hw *hw, u32 *eec);
 static void ixgbe_release_eeprom(struct ixgbe_hw *hw);
-static u16 ixgbe_calc_eeprom_checksum(struct ixgbe_hw *hw);
 
 static void ixgbe_enable_rar(struct ixgbe_hw *hw, u32 index);
 static void ixgbe_disable_rar(struct ixgbe_hw *hw, u32 index);
 static s32 ixgbe_mta_vector(struct ixgbe_hw *hw, u8 *mc_addr);
 static void ixgbe_add_uc_addr(struct ixgbe_hw *hw, u8 *addr, u32 vmdq);
 static s32 ixgbe_setup_fc(struct ixgbe_hw *hw, s32 packetbuf_num);
-static s32 ixgbe_poll_eerd_eewr_done(struct ixgbe_hw *hw, u32 ee_reg);
 
 /**
  *  ixgbe_start_hw_generic - Prepare hardware for Tx/Rx
@@ -198,30 +196,110 @@ s32 ixgbe_clear_hw_cntrs_generic(struct ixgbe_hw *hw)
 }
 
 /**
- *  ixgbe_read_pba_num_generic - Reads part number from EEPROM
+ *  ixgbe_read_pba_string_generic - Reads part number string from EEPROM
  *  @hw: pointer to hardware structure
- *  @pba_num: stores the part number from the EEPROM
+ *  @pba_num: stores the part number string from the EEPROM
+ *  @pba_num_size: part number string buffer length
  *
- *  Reads the part number from the EEPROM.
+ *  Reads the part number string from the EEPROM.
  **/
-s32 ixgbe_read_pba_num_generic(struct ixgbe_hw *hw, u32 *pba_num)
+s32 ixgbe_read_pba_string_generic(struct ixgbe_hw *hw, u8 *pba_num,
+                                  u32 pba_num_size)
 {
 	s32 ret_val;
 	u16 data;
+	u16 pba_ptr;
+	u16 offset;
+	u16 length;
+
+	if (pba_num == NULL) {
+		hw_dbg(hw, "PBA string buffer was null\n");
+		return IXGBE_ERR_INVALID_ARGUMENT;
+	}
 
 	ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM0_PTR, &data);
 	if (ret_val) {
 		hw_dbg(hw, "NVM Read Error\n");
 		return ret_val;
 	}
-	*pba_num = (u32)(data << 16);
 
-	ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM1_PTR, &data);
+	ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM1_PTR, &pba_ptr);
 	if (ret_val) {
 		hw_dbg(hw, "NVM Read Error\n");
 		return ret_val;
 	}
-	*pba_num |= data;
+
+	/*
+	 * if data is not ptr guard the PBA must be in legacy format which
+	 * means pba_ptr is actually our second data word for the PBA number
+	 * and we can decode it into an ascii string
+	 */
+	if (data != IXGBE_PBANUM_PTR_GUARD) {
+		hw_dbg(hw, "NVM PBA number is not stored as string\n");
+
+		/* we will need 11 characters to store the PBA */
+		if (pba_num_size < 11) {
+			hw_dbg(hw, "PBA string buffer too small\n");
+			return IXGBE_ERR_NO_SPACE;
+		}
+
+		/* extract hex string from data and pba_ptr */
+		pba_num[0] = (data >> 12) & 0xF;
+		pba_num[1] = (data >> 8) & 0xF;
+		pba_num[2] = (data >> 4) & 0xF;
+		pba_num[3] = data & 0xF;
+		pba_num[4] = (pba_ptr >> 12) & 0xF;
+		pba_num[5] = (pba_ptr >> 8) & 0xF;
+		pba_num[6] = '-';
+		pba_num[7] = 0;
+		pba_num[8] = (pba_ptr >> 4) & 0xF;
+		pba_num[9] = pba_ptr & 0xF;
+
+		/* put a null character on the end of our string */
+		pba_num[10] = '\0';
+
+		/* switch all the data but the '-' to hex char */
+		for (offset = 0; offset < 10; offset++) {
+			if (pba_num[offset] < 0xA)
+				pba_num[offset] += '0';
+			else if (pba_num[offset] < 0x10)
+				pba_num[offset] += 'A' - 0xA;
+		}
+
+		return 0;
+	}
+
+	ret_val = hw->eeprom.ops.read(hw, pba_ptr, &length);
+	if (ret_val) {
+		hw_dbg(hw, "NVM Read Error\n");
+		return ret_val;
+	}
+
+	if (length == 0xFFFF || length == 0) {
+		hw_dbg(hw, "NVM PBA number section invalid length\n");
+		return IXGBE_ERR_PBA_SECTION;
+	}
+
+	/* check if pba_num buffer is big enough */
+	if (pba_num_size  < (((u32)length * 2) - 1)) {
+		hw_dbg(hw, "PBA string buffer too small\n");
+		return IXGBE_ERR_NO_SPACE;
+	}
+
+	/* trim pba length from start of string */
+	pba_ptr++;
+	length--;
+
+	for (offset = 0; offset < length; offset++) {
+		ret_val = hw->eeprom.ops.read(hw, pba_ptr + offset, &data);
+		if (ret_val) {
+			hw_dbg(hw, "NVM Read Error\n");
+			return ret_val;
+		}
+		pba_num[offset * 2] = (u8)(data >> 8);
+		pba_num[(offset * 2) + 1] = (u8)(data & 0xFF);
+	}
+	pba_num[offset * 2] = '\0';
 
 	return 0;
 }
@@ -638,7 +716,7 @@ out:
  *  Polls the status bit (bit 1) of the EERD or EEWR to determine when the
  *  read or write is done respectively.
  **/
-static s32 ixgbe_poll_eerd_eewr_done(struct ixgbe_hw *hw, u32 ee_reg)
+s32 ixgbe_poll_eerd_eewr_done(struct ixgbe_hw *hw, u32 ee_reg)
 {
 	u32 i;
 	u32 reg;
@@ -1009,7 +1087,7 @@ static void ixgbe_release_eeprom(struct ixgbe_hw *hw)
  *  ixgbe_calc_eeprom_checksum - Calculates and returns the checksum
  *  @hw: pointer to hardware structure
  **/
-static u16 ixgbe_calc_eeprom_checksum(struct ixgbe_hw *hw)
+u16 ixgbe_calc_eeprom_checksum_generic(struct ixgbe_hw *hw)
 {
 	u16 i;
 	u16 j;
@@ -1072,7 +1150,7 @@ s32 ixgbe_validate_eeprom_checksum_generic(struct ixgbe_hw *hw,
 	status = hw->eeprom.ops.read(hw, 0, &checksum);
 
 	if (status == 0) {
-		checksum = ixgbe_calc_eeprom_checksum(hw);
+		checksum = hw->eeprom.ops.calc_checksum(hw);
 
 		hw->eeprom.ops.read(hw, IXGBE_EEPROM_CHECKSUM, &read_checksum);
 
@@ -1110,7 +1188,7 @@ s32 ixgbe_update_eeprom_checksum_generic(struct ixgbe_hw *hw)
 	status = hw->eeprom.ops.read(hw, 0, &checksum);
 
 	if (status == 0) {
-		checksum = ixgbe_calc_eeprom_checksum(hw);
+		checksum = hw->eeprom.ops.calc_checksum(hw);
 		status = hw->eeprom.ops.write(hw, IXGBE_EEPROM_CHECKSUM,
 		                            checksum);
 	} else {
@@ -1595,6 +1673,7 @@ s32 ixgbe_fc_enable_generic(struct ixgbe_hw *hw, s32 packetbuf_num)
 	u32 mflcn_reg, fccfg_reg;
 	u32 reg;
 	u32 rx_pba_size;
+	u32 fcrtl, fcrth;
 
 #ifdef CONFIG_DCB
 	if (hw->fc.requested_mode == ixgbe_fc_pfc)
@@ -1671,41 +1750,21 @@ s32 ixgbe_fc_enable_generic(struct ixgbe_hw *hw, s32 packetbuf_num)
 	IXGBE_WRITE_REG(hw, IXGBE_MFLCN, mflcn_reg);
 	IXGBE_WRITE_REG(hw, IXGBE_FCCFG, fccfg_reg);
 
-	reg = IXGBE_READ_REG(hw, IXGBE_MTQC);
-	/* Thresholds are different for link flow control when in DCB mode */
-	if (reg & IXGBE_MTQC_RT_ENA) {
-		rx_pba_size = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(packetbuf_num));
+	rx_pba_size = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(packetbuf_num));
+	rx_pba_size >>= IXGBE_RXPBSIZE_SHIFT;
 
-		/* Always disable XON for LFC when in DCB mode */
-		reg = (rx_pba_size >> 5) & 0xFFE0;
-		IXGBE_WRITE_REG(hw, IXGBE_FCRTL_82599(packetbuf_num), reg);
+	fcrth = (rx_pba_size - hw->fc.high_water) << 10;
+	fcrtl = (rx_pba_size - hw->fc.low_water) << 10;
 
-		reg = (rx_pba_size >> 2) & 0xFFE0;
-		if (hw->fc.current_mode & ixgbe_fc_tx_pause)
-			reg |= IXGBE_FCRTH_FCEN;
-		IXGBE_WRITE_REG(hw, IXGBE_FCRTH_82599(packetbuf_num), reg);
-	} else {
-		/*
-		 * Set up and enable Rx high/low water mark thresholds,
-		 * enable XON.
-		 */
-		if (hw->fc.current_mode & ixgbe_fc_tx_pause) {
-			if (hw->fc.send_xon) {
-				IXGBE_WRITE_REG(hw,
-				              IXGBE_FCRTL_82599(packetbuf_num),
-			                      (hw->fc.low_water |
-				              IXGBE_FCRTL_XONE));
-			} else {
-				IXGBE_WRITE_REG(hw,
-				              IXGBE_FCRTL_82599(packetbuf_num),
-				              hw->fc.low_water);
-			}
-
-			IXGBE_WRITE_REG(hw, IXGBE_FCRTH_82599(packetbuf_num),
-			               (hw->fc.high_water | IXGBE_FCRTH_FCEN));
-		}
+	if (hw->fc.current_mode & ixgbe_fc_tx_pause) {
+		fcrth |= IXGBE_FCRTH_FCEN;
+		if (hw->fc.send_xon)
+			fcrtl |= IXGBE_FCRTL_XONE;
 	}
 
+	IXGBE_WRITE_REG(hw, IXGBE_FCRTH_82599(packetbuf_num), fcrth);
+	IXGBE_WRITE_REG(hw, IXGBE_FCRTL_82599(packetbuf_num), fcrtl);
+
 	/* Configure pause time (2 TCs per register) */
 	reg = IXGBE_READ_REG(hw, IXGBE_FCTTV(packetbuf_num / 2));
 	if ((packetbuf_num & 1) == 0)
@@ -2705,3 +2764,112 @@ s32 ixgbe_check_mac_link_generic(struct ixgbe_hw *hw, ixgbe_link_speed *speed,
 
 	return 0;
 }
+
+/**
+ *  ixgbe_get_wwn_prefix_generic Get alternative WWNN/WWPN prefix from
+ *  the EEPROM
+ *  @hw: pointer to hardware structure
+ *  @wwnn_prefix: the alternative WWNN prefix
+ *  @wwpn_prefix: the alternative WWPN prefix
+ *
+ *  This function will read the EEPROM from the alternative SAN MAC address
+ *  block to check the support for the alternative WWNN/WWPN prefix support.
+ **/
+s32 ixgbe_get_wwn_prefix_generic(struct ixgbe_hw *hw, u16 *wwnn_prefix,
+                                        u16 *wwpn_prefix)
+{
+	u16 offset, caps;
+	u16 alt_san_mac_blk_offset;
+
+	/* clear output first */
+	*wwnn_prefix = 0xFFFF;
+	*wwpn_prefix = 0xFFFF;
+
+	/* check if alternative SAN MAC is supported */
+	hw->eeprom.ops.read(hw, IXGBE_ALT_SAN_MAC_ADDR_BLK_PTR,
+	                    &alt_san_mac_blk_offset);
+
+	if ((alt_san_mac_blk_offset == 0) ||
+	    (alt_san_mac_blk_offset == 0xFFFF))
+		goto wwn_prefix_out;
+
+	/* check capability in alternative san mac address block */
+	offset = alt_san_mac_blk_offset + IXGBE_ALT_SAN_MAC_ADDR_CAPS_OFFSET;
+	hw->eeprom.ops.read(hw, offset, &caps);
+	if (!(caps & IXGBE_ALT_SAN_MAC_ADDR_CAPS_ALTWWN))
+		goto wwn_prefix_out;
+
+	/* get the corresponding prefix for WWNN/WWPN */
+	offset = alt_san_mac_blk_offset + IXGBE_ALT_SAN_MAC_ADDR_WWNN_OFFSET;
+	hw->eeprom.ops.read(hw, offset, wwnn_prefix);
+
+	offset = alt_san_mac_blk_offset + IXGBE_ALT_SAN_MAC_ADDR_WWPN_OFFSET;
+	hw->eeprom.ops.read(hw, offset, wwpn_prefix);
+
+wwn_prefix_out:
+	return 0;
+}
+
+/**
+ *  ixgbe_set_mac_anti_spoofing - Enable/Disable MAC anti-spoofing
+ *  @hw: pointer to hardware structure
+ *  @enable: enable or disable switch for anti-spoofing
+ *  @pf: Physical Function pool - do not enable anti-spoofing for the PF
+ *
+ **/
+void ixgbe_set_mac_anti_spoofing(struct ixgbe_hw *hw, bool enable, int pf)
+{
+	int j;
+	int pf_target_reg = pf >> 3;
+	int pf_target_shift = pf % 8;
+	u32 pfvfspoof = 0;
+
+	if (hw->mac.type == ixgbe_mac_82598EB)
+		return;
+
+	if (enable)
+		pfvfspoof = IXGBE_SPOOF_MACAS_MASK;
+
+	/*
+	 * PFVFSPOOF register array is size 8 with 8 bits assigned to
+	 * MAC anti-spoof enables in each register array element.
+	 */
+	for (j = 0; j < IXGBE_PFVFSPOOF_REG_COUNT; j++)
+		IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(j), pfvfspoof);
+
+	/* If not enabling anti-spoofing then done */
+	if (!enable)
+		return;
+
+	/*
+	 * The PF should be allowed to spoof so that it can support
+	 * emulation mode NICs.  Reset the bit assigned to the PF
+	 */
+	pfvfspoof = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(pf_target_reg));
+	pfvfspoof ^= (1 << pf_target_shift);
+	IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(pf_target_reg), pfvfspoof);
+}
+
+/**
+ *  ixgbe_set_vlan_anti_spoofing - Enable/Disable VLAN anti-spoofing
+ *  @hw: pointer to hardware structure
+ *  @enable: enable or disable switch for VLAN anti-spoofing
+ *  @pf: Virtual Function pool - VF Pool to set for VLAN anti-spoofing
+ *
+ **/
+void ixgbe_set_vlan_anti_spoofing(struct ixgbe_hw *hw, bool enable, int vf)
+{
+	int vf_target_reg = vf >> 3;
+	int vf_target_shift = vf % 8 + IXGBE_SPOOF_VLANAS_SHIFT;
+	u32 pfvfspoof;
+
+	if (hw->mac.type == ixgbe_mac_82598EB)
+		return;
+
+	pfvfspoof = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
+	if (enable)
+		pfvfspoof |= (1 << vf_target_shift);
+	else
+		pfvfspoof &= ~(1 << vf_target_shift);
+	IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), pfvfspoof);
+}