e1000e: add support for 82567LM-3 and 82567LF-3 (ICH10D) parts

Add support for new LOM devices on the latest generation ICHx platforms.
Signed-off-by: NBruce Allan <bruce.w.allan@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

drivers/net/e1000e/defines.h

@@ -505,6 +505,7 @@
 #define NWAY_LPAR_ASM_DIR        0x0800 /* LP Asymmetric Pause Direction bit */
 
 /* Autoneg Expansion Register */
+#define NWAY_ER_LP_NWAY_CAPS     0x0001 /* LP has Auto Neg Capability */
 
 /* 1000BASE-T Control Register */
 #define CR_1000T_HD_CAPS         0x0100 /* Advertise 1000T HD capability */
@@ -540,6 +541,7 @@
 #define E1000_EECD_DO        0x00000008 /* NVM Data Out */
 #define E1000_EECD_REQ       0x00000040 /* NVM Access Request */
 #define E1000_EECD_GNT       0x00000080 /* NVM Access Grant */
+#define E1000_EECD_PRES      0x00000100 /* NVM Present */
 #define E1000_EECD_SIZE      0x00000200 /* NVM Size (0=64 word 1=256 word) */
 /* NVM Addressing bits based on type (0-small, 1-large) */
 #define E1000_EECD_ADDR_BITS 0x00000400

drivers/net/e1000e/e1000.h

@@ -98,6 +98,7 @@ enum e1000_boards {
 	board_80003es2lan,
 	board_ich8lan,
 	board_ich9lan,
+	board_ich10lan,
 };
 
 struct e1000_queue_stats {
@@ -374,6 +375,7 @@ extern struct e1000_info e1000_82572_info;
 extern struct e1000_info e1000_82573_info;
 extern struct e1000_info e1000_ich8_info;
 extern struct e1000_info e1000_ich9_info;
+extern struct e1000_info e1000_ich10_info;
 extern struct e1000_info e1000_es2_info;
 
 extern s32 e1000e_read_pba_num(struct e1000_hw *hw, u32 *pba_num);
@@ -446,6 +448,7 @@ extern s32 e1000e_get_cable_length_m88(struct e1000_hw *hw);
 extern s32 e1000e_get_phy_info_m88(struct e1000_hw *hw);
 extern s32 e1000e_read_phy_reg_m88(struct e1000_hw *hw, u32 offset, u16 *data);
 extern s32 e1000e_write_phy_reg_m88(struct e1000_hw *hw, u32 offset, u16 data);
+extern s32 e1000e_phy_init_script_igp3(struct e1000_hw *hw);
 extern enum e1000_phy_type e1000e_get_phy_type_from_id(u32 phy_id);
 extern s32 e1000e_determine_phy_address(struct e1000_hw *hw);
 extern s32 e1000e_write_phy_reg_bm(struct e1000_hw *hw, u32 offset, u16 data);

drivers/net/e1000e/ethtool.c

@@ -781,6 +781,7 @@ static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
 	case e1000_82573:
 	case e1000_ich8lan:
 	case e1000_ich9lan:
+	case e1000_ich10lan:
 		toggle = 0x7FFFF033;
 		break;
 	default:
@@ -833,7 +834,9 @@ static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
 	REG_PATTERN_TEST(E1000_TIDV, 0x0000FFFF, 0x0000FFFF);
 	for (i = 0; i < mac->rar_entry_count; i++)
 		REG_PATTERN_TEST_ARRAY(E1000_RA, ((i << 1) + 1),
-				       0x8003FFFF, 0xFFFFFFFF);
+				       ((mac->type == e1000_ich10lan) ?
+					   0x8007FFFF : 0x8003FFFF),
+				       0xFFFFFFFF);
 
 	for (i = 0; i < mac->mta_reg_count; i++)
 		REG_PATTERN_TEST_ARRAY(E1000_MTA, i, 0xFFFFFFFF, 0xFFFFFFFF);
@@ -905,12 +908,23 @@ static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
 
 	/* Test each interrupt */
 	for (i = 0; i < 10; i++) {
-		if ((adapter->flags & FLAG_IS_ICH) && (i == 8))
-			continue;
-
 		/* Interrupt to test */
 		mask = 1 << i;
 
+		if (adapter->flags & FLAG_IS_ICH) {
+			switch (mask) {
+			case E1000_ICR_RXSEQ:
+				continue;
+			case 0x00000100:
+				if (adapter->hw.mac.type == e1000_ich8lan ||
+				    adapter->hw.mac.type == e1000_ich9lan)
+					continue;
+				break;
+			default:
+				break;
+			}
+		}
+
 		if (!shared_int) {
 			/*
 			 * Disable the interrupt to be reported in

drivers/net/e1000e/hw.h

@@ -357,6 +357,8 @@ enum e1e_registers {
 #define E1000_DEV_ID_ICH10_R_BM_LM		0x10CC
 #define E1000_DEV_ID_ICH10_R_BM_LF		0x10CD
 #define E1000_DEV_ID_ICH10_R_BM_V		0x10CE
+#define E1000_DEV_ID_ICH10_D_BM_LM		0x10DE
+#define E1000_DEV_ID_ICH10_D_BM_LF		0x10DF
 
 #define E1000_FUNC_1 1
 
@@ -367,6 +369,7 @@ enum e1000_mac_type {
 	e1000_80003es2lan,
 	e1000_ich8lan,
 	e1000_ich9lan,
+	e1000_ich10lan,
 };
 
 enum e1000_media_type {

drivers/net/e1000e/ich8lan.c

@@ -43,7 +43,8 @@
  * 82567LM-2 Gigabit Network Connection
  * 82567LF-2 Gigabit Network Connection
  * 82567V-2 Gigabit Network Connection
- * 82562GT-3 10/100 Network Connection
+ * 82567LF-3 Gigabit Network Connection
+ * 82567LM-3 Gigabit Network Connection
  * 82567LM-4 Gigabit Network Connection
  */
 
@@ -158,12 +159,15 @@ static s32 e1000_check_polarity_ife_ich8lan(struct e1000_hw *hw);
 static s32 e1000_erase_flash_bank_ich8lan(struct e1000_hw *hw, u32 bank);
 static s32 e1000_retry_write_flash_byte_ich8lan(struct e1000_hw *hw,
 						u32 offset, u8 byte);
+static s32 e1000_read_flash_byte_ich8lan(struct e1000_hw *hw, u32 offset,
+					 u8 *data);
 static s32 e1000_read_flash_word_ich8lan(struct e1000_hw *hw, u32 offset,
 					 u16 *data);
 static s32 e1000_read_flash_data_ich8lan(struct e1000_hw *hw, u32 offset,
 					 u8 size, u16 *data);
 static s32 e1000_setup_copper_link_ich8lan(struct e1000_hw *hw);
 static s32 e1000_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw);
+static s32 e1000_get_cfg_done_ich8lan(struct e1000_hw *hw);
 
 static inline u16 __er16flash(struct e1000_hw *hw, unsigned long reg)
 {
@@ -897,6 +901,56 @@ static s32 e1000_set_d3_lplu_state_ich8lan(struct e1000_hw *hw, bool active)
 	return 0;
 }
 
+/**
+ *  e1000_valid_nvm_bank_detect_ich8lan - finds out the valid bank 0 or 1
+ *  @hw: pointer to the HW structure
+ *  @bank:  pointer to the variable that returns the active bank
+ *
+ *  Reads signature byte from the NVM using the flash access registers.
+ **/
+static s32 e1000_valid_nvm_bank_detect_ich8lan(struct e1000_hw *hw, u32 *bank)
+{
+	struct e1000_nvm_info *nvm = &hw->nvm;
+	/* flash bank size is in words */
+	u32 bank1_offset = nvm->flash_bank_size * sizeof(u16);
+	u32 act_offset = E1000_ICH_NVM_SIG_WORD * 2 + 1;
+	u8 bank_high_byte = 0;
+
+	if (hw->mac.type != e1000_ich10lan) {
+		if (er32(EECD) & E1000_EECD_SEC1VAL)
+			*bank = 1;
+		else
+			*bank = 0;
+	} else {
+		/*
+		 * Make sure the signature for bank 0 is valid,
+		 * if not check for bank1
+		 */
+		e1000_read_flash_byte_ich8lan(hw, act_offset, &bank_high_byte);
+		if ((bank_high_byte & 0xC0) == 0x80) {
+			*bank = 0;
+		} else {
+			/*
+			 * find if segment 1 is valid by verifying
+			 * bit 15:14 = 10b in word 0x13
+			 */
+			e1000_read_flash_byte_ich8lan(hw,
+						      act_offset + bank1_offset,
+						      &bank_high_byte);
+
+			/* bank1 has a valid signature equivalent to SEC1V */
+			if ((bank_high_byte & 0xC0) == 0x80) {
+				*bank = 1;
+			} else {
+				hw_dbg(hw, "ERROR: EEPROM not present\n");
+				return -E1000_ERR_NVM;
+			}
+		}
+	}
+
+	return 0;
+}
+
 /**
  *  e1000_read_nvm_ich8lan - Read word(s) from the NVM
  *  @hw: pointer to the HW structure
@@ -913,6 +967,7 @@ static s32 e1000_read_nvm_ich8lan(struct e1000_hw *hw, u16 offset, u16 words,
 	struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
 	u32 act_offset;
 	s32 ret_val;
+	u32 bank = 0;
 	u16 i, word;
 
 	if ((offset >= nvm->word_size) || (words > nvm->word_size - offset) ||
@@ -925,10 +980,11 @@ static s32 e1000_read_nvm_ich8lan(struct e1000_hw *hw, u16 offset, u16 words,
 	if (ret_val)
 		return ret_val;
 
-	/* Start with the bank offset, then add the relative offset. */
-	act_offset = (er32(EECD) & E1000_EECD_SEC1VAL)
-		     ? nvm->flash_bank_size
-		     : 0;
+	ret_val = e1000_valid_nvm_bank_detect_ich8lan(hw, &bank);
+	if (ret_val)
+		return ret_val;
+
+	act_offset = (bank) ? nvm->flash_bank_size : 0;
 	act_offset += offset;
 
 	for (i = 0; i < words; i++) {
@@ -1075,6 +1131,29 @@ static s32 e1000_read_flash_word_ich8lan(struct e1000_hw *hw, u32 offset,
 	return e1000_read_flash_data_ich8lan(hw, offset, 2, data);
 }
 
+/**
+ *  e1000_read_flash_byte_ich8lan - Read byte from flash
+ *  @hw: pointer to the HW structure
+ *  @offset: The offset of the byte to read.
+ *  @data: Pointer to a byte to store the value read.
+ *
+ *  Reads a single byte from the NVM using the flash access registers.
+ **/
+static s32 e1000_read_flash_byte_ich8lan(struct e1000_hw *hw, u32 offset,
+					 u8 *data)
+{
+	s32 ret_val;
+	u16 word = 0;
+
+	ret_val = e1000_read_flash_data_ich8lan(hw, offset, 1, &word);
+	if (ret_val)
+		return ret_val;
+
+	*data = (u8)word;
+
+	return 0;
+}
+
 /**
  *  e1000_read_flash_data_ich8lan - Read byte or word from NVM
  *  @hw: pointer to the HW structure
@@ -1206,7 +1285,7 @@ static s32 e1000_update_nvm_checksum_ich8lan(struct e1000_hw *hw)
 {
 	struct e1000_nvm_info *nvm = &hw->nvm;
 	struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
-	u32 i, act_offset, new_bank_offset, old_bank_offset;
+	u32 i, act_offset, new_bank_offset, old_bank_offset, bank;
 	s32 ret_val;
 	u16 data;
 
@@ -1226,7 +1305,11 @@ static s32 e1000_update_nvm_checksum_ich8lan(struct e1000_hw *hw)
 	 * write to bank 0 etc.  We also need to erase the segment that
 	 * is going to be written
 	 */
-	if (!(er32(EECD) & E1000_EECD_SEC1VAL)) {
+	ret_val =  e1000_valid_nvm_bank_detect_ich8lan(hw, &bank);
+	if (ret_val)
+		return ret_val;
+
+	if (bank == 0) {
 		new_bank_offset = nvm->flash_bank_size;
 		old_bank_offset = 0;
 		e1000_erase_flash_bank_ich8lan(hw, 1);
@@ -2190,13 +2273,14 @@ void e1000e_gig_downshift_workaround_ich8lan(struct e1000_hw *hw)
  *  'LPLU Enabled' and 'Gig Disable' to force link speed negotiation
  *  to a lower speed.
  *
- *  Should only be called for ICH9 devices.
+ *  Should only be called for ICH9 and ICH10 devices.
  **/
 void e1000e_disable_gig_wol_ich8lan(struct e1000_hw *hw)
 {
 	u32 phy_ctrl;
 
-	if (hw->mac.type == e1000_ich9lan) {
+	if ((hw->mac.type == e1000_ich10lan) ||
+	    (hw->mac.type == e1000_ich9lan)) {
 		phy_ctrl = er32(PHY_CTRL);
 		phy_ctrl |= E1000_PHY_CTRL_D0A_LPLU |
 		            E1000_PHY_CTRL_GBE_DISABLE;
@@ -2253,6 +2337,39 @@ static s32 e1000_led_off_ich8lan(struct e1000_hw *hw)
 	return 0;
 }
 
+/**
+ *  e1000_get_cfg_done_ich8lan - Read config done bit
+ *  @hw: pointer to the HW structure
+ *
+ *  Read the management control register for the config done bit for
+ *  completion status.  NOTE: silicon which is EEPROM-less will fail trying
+ *  to read the config done bit, so an error is *ONLY* logged and returns
+ *  E1000_SUCCESS.  If we were to return with error, EEPROM-less silicon
+ *  would not be able to be reset or change link.
+ **/
+static s32 e1000_get_cfg_done_ich8lan(struct e1000_hw *hw)
+{
+	u32 bank = 0;
+
+	e1000e_get_cfg_done(hw);
+
+	/* If EEPROM is not marked present, init the IGP 3 PHY manually */
+	if (hw->mac.type != e1000_ich10lan) {
+		if (((er32(EECD) & E1000_EECD_PRES) == 0) &&
+		    (hw->phy.type == e1000_phy_igp_3)) {
+			e1000e_phy_init_script_igp3(hw);
+		}
+	} else {
+		if (e1000_valid_nvm_bank_detect_ich8lan(hw, &bank)) {
+			/* Maybe we should do a basic PHY config */
+			hw_dbg(hw, "EEPROM not present\n");
+			return -E1000_ERR_CONFIG;
+		}
+	}
+
+	return 0;
+}
+
 /**
  *  e1000_clear_hw_cntrs_ich8lan - Clear statistical counters
  *  @hw: pointer to the HW structure
@@ -2303,7 +2420,7 @@ static struct e1000_phy_operations ich8_phy_ops = {
 	.check_reset_block	= e1000_check_reset_block_ich8lan,
 	.commit_phy		= NULL,
 	.force_speed_duplex	= e1000_phy_force_speed_duplex_ich8lan,
-	.get_cfg_done		= e1000e_get_cfg_done,
+	.get_cfg_done		= e1000_get_cfg_done_ich8lan,
 	.get_cable_length	= e1000e_get_cable_length_igp_2,
 	.get_phy_info		= e1000_get_phy_info_ich8lan,
 	.read_phy_reg		= e1000e_read_phy_reg_igp,
@@ -2358,3 +2475,20 @@ struct e1000_info e1000_ich9_info = {
 	.nvm_ops		= &ich8_nvm_ops,
 };
 
+struct e1000_info e1000_ich10_info = {
+	.mac			= e1000_ich10lan,
+	.flags			= FLAG_HAS_JUMBO_FRAMES
+				  | FLAG_IS_ICH
+				  | FLAG_HAS_WOL
+				  | FLAG_RX_CSUM_ENABLED
+				  | FLAG_HAS_CTRLEXT_ON_LOAD
+				  | FLAG_HAS_AMT
+				  | FLAG_HAS_ERT
+				  | FLAG_HAS_FLASH
+				  | FLAG_APME_IN_WUC,
+	.pba			= 10,
+	.get_variants		= e1000_get_variants_ich8lan,
+	.mac_ops		= &ich8_mac_ops,
+	.phy_ops		= &ich8_phy_ops,
+	.nvm_ops		= &ich8_nvm_ops,
+};

drivers/net/e1000e/netdev.c

@@ -58,6 +58,7 @@ static const struct e1000_info *e1000_info_tbl[] = {
 	[board_80003es2lan]	= &e1000_es2_info,
 	[board_ich8lan]		= &e1000_ich8_info,
 	[board_ich9lan]		= &e1000_ich9_info,
+	[board_ich10lan]	= &e1000_ich10_info,
 };
 
 #ifdef DEBUG
@@ -3200,6 +3201,27 @@ static void e1000_watchdog_task(struct work_struct *work)
 						   &adapter->link_speed,
 						   &adapter->link_duplex);
 			e1000_print_link_info(adapter);
+			/*
+			 * On supported PHYs, check for duplex mismatch only
+			 * if link has autonegotiated at 10/100 half
+			 */
+			if ((hw->phy.type == e1000_phy_igp_3 ||
+			     hw->phy.type == e1000_phy_bm) &&
+			    (hw->mac.autoneg == true) &&
+			    (adapter->link_speed == SPEED_10 ||
+			     adapter->link_speed == SPEED_100) &&
+			    (adapter->link_duplex == HALF_DUPLEX)) {
+				u16 autoneg_exp;
+
+				e1e_rphy(hw, PHY_AUTONEG_EXP, &autoneg_exp);
+
+				if (!(autoneg_exp & NWAY_ER_LP_NWAY_CAPS))
+					e_info("Autonegotiated half duplex but"
+					       " link partner cannot autoneg. "
+					       " Try forcing full duplex if "
+					       "link gets many collisions.\n");
+			}
+
 			/*
 			 * tweak tx_queue_len according to speed/duplex
 			 * and adjust the timeout factor
@@ -4776,6 +4798,9 @@ static struct pci_device_id e1000_pci_tbl[] = {
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH10_R_BM_LF), board_ich9lan },
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH10_R_BM_V), board_ich9lan },
 
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH10_D_BM_LM), board_ich10lan },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH10_D_BM_LF), board_ich10lan },
+
 	{ }	/* terminate list */
 };
 MODULE_DEVICE_TABLE(pci, e1000_pci_tbl);

drivers/net/e1000e/phy.c

@@ -1720,6 +1720,91 @@ s32 e1000e_get_cfg_done(struct e1000_hw *hw)
 	return 0;
 }
 
+/**
+ *  e1000e_phy_init_script_igp3 - Inits the IGP3 PHY
+ *  @hw: pointer to the HW structure
+ *
+ *  Initializes a Intel Gigabit PHY3 when an EEPROM is not present.
+ **/
+s32 e1000e_phy_init_script_igp3(struct e1000_hw *hw)
+{
+	hw_dbg(hw, "Running IGP 3 PHY init script\n");
+
+	/* PHY init IGP 3 */
+	/* Enable rise/fall, 10-mode work in class-A */
+	e1e_wphy(hw, 0x2F5B, 0x9018);
+	/* Remove all caps from Replica path filter */
+	e1e_wphy(hw, 0x2F52, 0x0000);
+	/* Bias trimming for ADC, AFE and Driver (Default) */
+	e1e_wphy(hw, 0x2FB1, 0x8B24);
+	/* Increase Hybrid poly bias */
+	e1e_wphy(hw, 0x2FB2, 0xF8F0);
+	/* Add 4% to Tx amplitude in Gig mode */
+	e1e_wphy(hw, 0x2010, 0x10B0);
+	/* Disable trimming (TTT) */
+	e1e_wphy(hw, 0x2011, 0x0000);
+	/* Poly DC correction to 94.6% + 2% for all channels */
+	e1e_wphy(hw, 0x20DD, 0x249A);
+	/* ABS DC correction to 95.9% */
+	e1e_wphy(hw, 0x20DE, 0x00D3);
+	/* BG temp curve trim */
+	e1e_wphy(hw, 0x28B4, 0x04CE);
+	/* Increasing ADC OPAMP stage 1 currents to max */
+	e1e_wphy(hw, 0x2F70, 0x29E4);
+	/* Force 1000 ( required for enabling PHY regs configuration) */
+	e1e_wphy(hw, 0x0000, 0x0140);
+	/* Set upd_freq to 6 */
+	e1e_wphy(hw, 0x1F30, 0x1606);
+	/* Disable NPDFE */
+	e1e_wphy(hw, 0x1F31, 0xB814);
+	/* Disable adaptive fixed FFE (Default) */
+	e1e_wphy(hw, 0x1F35, 0x002A);
+	/* Enable FFE hysteresis */
+	e1e_wphy(hw, 0x1F3E, 0x0067);
+	/* Fixed FFE for short cable lengths */
+	e1e_wphy(hw, 0x1F54, 0x0065);
+	/* Fixed FFE for medium cable lengths */
+	e1e_wphy(hw, 0x1F55, 0x002A);
+	/* Fixed FFE for long cable lengths */
+	e1e_wphy(hw, 0x1F56, 0x002A);
+	/* Enable Adaptive Clip Threshold */
+	e1e_wphy(hw, 0x1F72, 0x3FB0);
+	/* AHT reset limit to 1 */
+	e1e_wphy(hw, 0x1F76, 0xC0FF);
+	/* Set AHT master delay to 127 msec */
+	e1e_wphy(hw, 0x1F77, 0x1DEC);
+	/* Set scan bits for AHT */
+	e1e_wphy(hw, 0x1F78, 0xF9EF);
+	/* Set AHT Preset bits */
+	e1e_wphy(hw, 0x1F79, 0x0210);
+	/* Change integ_factor of channel A to 3 */
+	e1e_wphy(hw, 0x1895, 0x0003);
+	/* Change prop_factor of channels BCD to 8 */
+	e1e_wphy(hw, 0x1796, 0x0008);
+	/* Change cg_icount + enable integbp for channels BCD */
+	e1e_wphy(hw, 0x1798, 0xD008);
+	/*
+	 * Change cg_icount + enable integbp + change prop_factor_master
+	 * to 8 for channel A
+	 */
+	e1e_wphy(hw, 0x1898, 0xD918);
+	/* Disable AHT in Slave mode on channel A */
+	e1e_wphy(hw, 0x187A, 0x0800);
+	/*
+	 * Enable LPLU and disable AN to 1000 in non-D0a states,
+	 * Enable SPD+B2B
+	 */
+	e1e_wphy(hw, 0x0019, 0x008D);
+	/* Enable restart AN on an1000_dis change */
+	e1e_wphy(hw, 0x001B, 0x2080);
+	/* Enable wh_fifo read clock in 10/100 modes */
+	e1e_wphy(hw, 0x0014, 0x0045);
+	/* Restart AN, Speed selection is 1000 */
+	e1e_wphy(hw, 0x0000, 0x1340);
+
+	return 0;
+}
+
 /* Internal function pointers */
 
 /**