e1000: Support for 82571 and 82572 controllers

Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

drivers/net/e1000/e1000_ethtool.c

@@ -696,6 +696,11 @@ e1000_reg_test(struct e1000_adapter *adapter, uint64_t *data)
 	 * Some bits that get toggled are ignored.
 	 */
         switch (adapter->hw.mac_type) {
+	/* there are several bits on newer hardware that are r/w */
+	case e1000_82571:
+	case e1000_82572:
+		toggle = 0x7FFFF3FF;
+		break;
 	case e1000_82573:
 		toggle = 0x7FFFF033;
 		break;
@@ -1245,6 +1250,8 @@ e1000_set_phy_loopback(struct e1000_adapter *adapter)
 	case e1000_82541_rev_2:
 	case e1000_82547:
 	case e1000_82547_rev_2:
+	case e1000_82571:
+	case e1000_82572:
 	case e1000_82573:
 		return e1000_integrated_phy_loopback(adapter);
 		break;
@@ -1625,7 +1632,7 @@ e1000_phys_id(struct net_device *netdev, uint32_t data)
 	if(!data || data > (uint32_t)(MAX_SCHEDULE_TIMEOUT / HZ))
 		data = (uint32_t)(MAX_SCHEDULE_TIMEOUT / HZ);
 
-	if(adapter->hw.mac_type < e1000_82573) {
+	if(adapter->hw.mac_type < e1000_82571) {
 		if(!adapter->blink_timer.function) {
 			init_timer(&adapter->blink_timer);
 			adapter->blink_timer.function = e1000_led_blink_callback;

drivers/net/e1000/e1000_hw.c

@@ -83,14 +83,14 @@ uint16_t e1000_igp_cable_length_table[IGP01E1000_AGC_LENGTH_TABLE_SIZE] =
 
 static const
 uint16_t e1000_igp_2_cable_length_table[IGP02E1000_AGC_LENGTH_TABLE_SIZE] =
-    { 8, 13, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43,
-      22, 24, 27, 30, 32, 35, 37, 40, 42, 44, 47, 49, 51, 54, 56, 58,
-      32, 35, 38, 41, 44, 47, 50, 53, 55, 58, 61, 63, 66, 69, 71, 74,
-      43, 47, 51, 54, 58, 61, 64, 67, 71, 74, 77, 80, 82, 85, 88, 90,
-      57, 62, 66, 70, 74, 77, 81, 85, 88, 91, 94, 97, 100, 103, 106, 108,
-      73, 78, 82, 87, 91, 95, 98, 102, 105, 109, 112, 114, 117, 119, 122, 124,
-      91, 96, 101, 105, 109, 113, 116, 119, 122, 125, 127, 128, 128, 128, 128, 128,
-      108, 113, 117, 121, 124, 127, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128};
+    { 0, 0, 0, 0, 0, 0, 0, 0, 3, 5, 8, 11, 13, 16, 18, 21,
+      0, 0, 0, 3, 6, 10, 13, 16, 19, 23, 26, 29, 32, 35, 38, 41,
+      6, 10, 14, 18, 22, 26, 30, 33, 37, 41, 44, 48, 51, 54, 58, 61,
+      21, 26, 31, 35, 40, 44, 49, 53, 57, 61, 65, 68, 72, 75, 79, 82,
+      40, 45, 51, 56, 61, 66, 70, 75, 79, 83, 87, 91, 94, 98, 101, 104,
+      60, 66, 72, 77, 82, 87, 92, 96, 100, 104, 108, 111, 114, 117, 119, 121,
+      83, 89, 95, 100, 105, 109, 113, 116, 119, 122, 124,
+      104, 109, 114, 118, 121, 124};
 
 
 /******************************************************************************
@@ -286,7 +286,6 @@ e1000_set_mac_type(struct e1000_hw *hw)
     case E1000_DEV_ID_82546GB_FIBER:
     case E1000_DEV_ID_82546GB_SERDES:
     case E1000_DEV_ID_82546GB_PCIE:
-    case E1000_DEV_ID_82546GB_QUAD_COPPER:
         hw->mac_type = e1000_82546_rev_3;
         break;
     case E1000_DEV_ID_82541EI:
@@ -305,8 +304,19 @@ e1000_set_mac_type(struct e1000_hw *hw)
     case E1000_DEV_ID_82547GI:
         hw->mac_type = e1000_82547_rev_2;
         break;
+    case E1000_DEV_ID_82571EB_COPPER:
+    case E1000_DEV_ID_82571EB_FIBER:
+    case E1000_DEV_ID_82571EB_SERDES:
+            hw->mac_type = e1000_82571;
+        break;
+    case E1000_DEV_ID_82572EI_COPPER:
+    case E1000_DEV_ID_82572EI_FIBER:
+    case E1000_DEV_ID_82572EI_SERDES:
+        hw->mac_type = e1000_82572;
+        break;
     case E1000_DEV_ID_82573E:
     case E1000_DEV_ID_82573E_IAMT:
+    case E1000_DEV_ID_82573L:
         hw->mac_type = e1000_82573;
         break;
     default:
@@ -315,6 +325,8 @@ e1000_set_mac_type(struct e1000_hw *hw)
     }
 
     switch(hw->mac_type) {
+    case e1000_82571:
+    case e1000_82572:
     case e1000_82573:
         hw->eeprom_semaphore_present = TRUE;
         /* fall through */
@@ -351,6 +363,8 @@ e1000_set_media_type(struct e1000_hw *hw)
     switch (hw->device_id) {
     case E1000_DEV_ID_82545GM_SERDES:
     case E1000_DEV_ID_82546GB_SERDES:
+    case E1000_DEV_ID_82571EB_SERDES:
+    case E1000_DEV_ID_82572EI_SERDES:
         hw->media_type = e1000_media_type_internal_serdes;
         break;
     default:
@@ -523,6 +537,8 @@ e1000_reset_hw(struct e1000_hw *hw)
             E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext);
             E1000_WRITE_FLUSH(hw);
             /* fall through */
+        case e1000_82571:
+        case e1000_82572:
             ret_val = e1000_get_auto_rd_done(hw);
             if(ret_val)
                 /* We don't want to continue accessing MAC registers. */
@@ -683,6 +699,9 @@ e1000_init_hw(struct e1000_hw *hw)
         switch (hw->mac_type) {
         default:
             break;
+        case e1000_82571:
+        case e1000_82572:
+            ctrl |= (1 << 22);
         case e1000_82573:
             ctrl |= E1000_TXDCTL_COUNT_DESC;
             break;
@@ -694,6 +713,25 @@ e1000_init_hw(struct e1000_hw *hw)
         e1000_enable_tx_pkt_filtering(hw); 
     }
 
+    switch (hw->mac_type) {
+    default:
+        break;
+    case e1000_82571:
+        ctrl = E1000_READ_REG(hw, TXDCTL1);
+        ctrl &= ~E1000_TXDCTL_WTHRESH;
+        ctrl |= E1000_TXDCTL_COUNT_DESC | E1000_TXDCTL_FULL_TX_DESC_WB;
+        ctrl |= (1 << 22);
+        E1000_WRITE_REG(hw, TXDCTL1, ctrl);
+        break;
+    }
+
+
+
+    if (hw->mac_type == e1000_82573) {
+        uint32_t gcr = E1000_READ_REG(hw, GCR);
+        gcr |= E1000_GCR_L1_ACT_WITHOUT_L0S_RX;
+        E1000_WRITE_REG(hw, GCR, gcr);
+    }
 
     /* Clear all of the statistics registers (clear on read).  It is
      * important that we do this after we have tried to establish link
@@ -878,6 +916,14 @@ e1000_setup_fiber_serdes_link(struct e1000_hw *hw)
 
     DEBUGFUNC("e1000_setup_fiber_serdes_link");
 
+    /* On 82571 and 82572 Fiber connections, SerDes loopback mode persists
+     * until explicitly turned off or a power cycle is performed.  A read to
+     * the register does not indicate its status.  Therefore, we ensure
+     * loopback mode is disabled during initialization.
+     */
+    if (hw->mac_type == e1000_82571 || hw->mac_type == e1000_82572)
+        E1000_WRITE_REG(hw, SCTL, E1000_DISABLE_SERDES_LOOPBACK);
+
     /* On adapters with a MAC newer than 82544, SW Defineable pin 1 will be
      * set when the optics detect a signal. On older adapters, it will be
      * cleared when there is a signal.  This applies to fiber media only.
@@ -2943,6 +2989,8 @@ e1000_phy_reset(struct e1000_hw *hw)
 
     switch (hw->mac_type) {
     case e1000_82541_rev_2:
+    case e1000_82571:
+    case e1000_82572:
         ret_val = e1000_phy_hw_reset(hw);
         if(ret_val)
             return ret_val;
@@ -2981,6 +3029,16 @@ e1000_detect_gig_phy(struct e1000_hw *hw)
 
     DEBUGFUNC("e1000_detect_gig_phy");
 
+    /* The 82571 firmware may still be configuring the PHY.  In this
+     * case, we cannot access the PHY until the configuration is done.  So
+     * we explicitly set the PHY values. */
+    if(hw->mac_type == e1000_82571 ||
+       hw->mac_type == e1000_82572) {
+        hw->phy_id = IGP01E1000_I_PHY_ID;
+        hw->phy_type = e1000_phy_igp_2;
+        return E1000_SUCCESS;
+    }
+
     /* Read the PHY ID Registers to identify which PHY is onboard. */
     ret_val = e1000_read_phy_reg(hw, PHY_ID1, &phy_id_high);
     if(ret_val)
@@ -3334,6 +3392,21 @@ e1000_init_eeprom_params(struct e1000_hw *hw)
         eeprom->use_eerd = FALSE;
         eeprom->use_eewr = FALSE;
         break;
+    case e1000_82571:
+    case e1000_82572:
+        eeprom->type = e1000_eeprom_spi;
+        eeprom->opcode_bits = 8;
+        eeprom->delay_usec = 1;
+        if (eecd & E1000_EECD_ADDR_BITS) {
+            eeprom->page_size = 32;
+            eeprom->address_bits = 16;
+        } else {
+            eeprom->page_size = 8;
+            eeprom->address_bits = 8;
+        }
+        eeprom->use_eerd = FALSE;
+        eeprom->use_eewr = FALSE;
+        break;
     case e1000_82573:
         eeprom->type = e1000_eeprom_spi;
         eeprom->opcode_bits = 8;
@@ -3543,25 +3616,26 @@ e1000_acquire_eeprom(struct e1000_hw *hw)
     eecd = E1000_READ_REG(hw, EECD);
 
     if (hw->mac_type != e1000_82573) {
-    /* Request EEPROM Access */
-    if(hw->mac_type > e1000_82544) {
-        eecd |= E1000_EECD_REQ;
-        E1000_WRITE_REG(hw, EECD, eecd);
-        eecd = E1000_READ_REG(hw, EECD);
-        while((!(eecd & E1000_EECD_GNT)) &&
-              (i < E1000_EEPROM_GRANT_ATTEMPTS)) {
-            i++;
-            udelay(5);
-            eecd = E1000_READ_REG(hw, EECD);
-        }
-        if(!(eecd & E1000_EECD_GNT)) {
-            eecd &= ~E1000_EECD_REQ;
+        /* Request EEPROM Access */
+        if(hw->mac_type > e1000_82544) {
+            eecd |= E1000_EECD_REQ;
             E1000_WRITE_REG(hw, EECD, eecd);
-            DEBUGOUT("Could not acquire EEPROM grant\n");
-            return -E1000_ERR_EEPROM;
+            eecd = E1000_READ_REG(hw, EECD);
+            while((!(eecd & E1000_EECD_GNT)) &&
+                  (i < E1000_EEPROM_GRANT_ATTEMPTS)) {
+                i++;
+                udelay(5);
+                eecd = E1000_READ_REG(hw, EECD);
+            }
+            if(!(eecd & E1000_EECD_GNT)) {
+                eecd &= ~E1000_EECD_REQ;
+                E1000_WRITE_REG(hw, EECD, eecd);
+                DEBUGOUT("Could not acquire EEPROM grant\n");
+                e1000_put_hw_eeprom_semaphore(hw);
+                return -E1000_ERR_EEPROM;
+            }
         }
     }
-    }
 
     /* Setup EEPROM for Read/Write */
 
@@ -4064,7 +4138,7 @@ e1000_write_eeprom(struct e1000_hw *hw,
         return -E1000_ERR_EEPROM;
     }
 
-    /* 82573 reads only through eerd */
+    /* 82573 writes only through eewr */
     if(eeprom->use_eewr == TRUE)
         return e1000_write_eeprom_eewr(hw, offset, words, data);
 
@@ -4353,9 +4427,16 @@ e1000_read_mac_addr(struct e1000_hw * hw)
         hw->perm_mac_addr[i] = (uint8_t) (eeprom_data & 0x00FF);
         hw->perm_mac_addr[i+1] = (uint8_t) (eeprom_data >> 8);
     }
-    if(((hw->mac_type == e1000_82546) || (hw->mac_type == e1000_82546_rev_3)) &&
-       (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1))
+    switch (hw->mac_type) {
+    default:
+        break;
+    case e1000_82546:
+    case e1000_82546_rev_3:
+    case e1000_82571:
+        if(E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)
             hw->perm_mac_addr[5] ^= 0x01;
+        break;
+    }
 
     for(i = 0; i < NODE_ADDRESS_SIZE; i++)
         hw->mac_addr[i] = hw->perm_mac_addr[i];
@@ -4385,6 +4466,12 @@ e1000_init_rx_addrs(struct e1000_hw *hw)
     e1000_rar_set(hw, hw->mac_addr, 0);
 
     rar_num = E1000_RAR_ENTRIES;
+
+    /* Reserve a spot for the Locally Administered Address to work around
+     * an 82571 issue in which a reset on one port will reload the MAC on
+     * the other port. */
+    if ((hw->mac_type == e1000_82571) && (hw->laa_is_present == TRUE))
+        rar_num -= 1;
     /* Zero out the other 15 receive addresses. */
     DEBUGOUT("Clearing RAR[1-15]\n");
     for(i = 1; i < rar_num; i++) {
@@ -4427,6 +4514,12 @@ e1000_mc_addr_list_update(struct e1000_hw *hw,
     /* Clear RAR[1-15] */
     DEBUGOUT(" Clearing RAR[1-15]\n");
     num_rar_entry = E1000_RAR_ENTRIES;
+    /* Reserve a spot for the Locally Administered Address to work around
+     * an 82571 issue in which a reset on one port will reload the MAC on
+     * the other port. */
+    if ((hw->mac_type == e1000_82571) && (hw->laa_is_present == TRUE))
+        num_rar_entry -= 1;
+
     for(i = rar_used_count; i < num_rar_entry; i++) {
         E1000_WRITE_REG_ARRAY(hw, RA, (i << 1), 0);
         E1000_WRITE_REG_ARRAY(hw, RA, ((i << 1) + 1), 0);
@@ -4984,7 +5077,6 @@ e1000_clear_hw_cntrs(struct e1000_hw *hw)
     temp = E1000_READ_REG(hw, ICTXQEC);
     temp = E1000_READ_REG(hw, ICTXQMTC);
     temp = E1000_READ_REG(hw, ICRXDMTC);
-
 }
 
 /******************************************************************************
@@ -5151,6 +5243,8 @@ e1000_get_bus_info(struct e1000_hw *hw)
         hw->bus_speed = e1000_bus_speed_unknown;
         hw->bus_width = e1000_bus_width_unknown;
         break;
+    case e1000_82571:
+    case e1000_82572:
     case e1000_82573:
         hw->bus_type = e1000_bus_type_pci_express;
         hw->bus_speed = e1000_bus_speed_2500;
@@ -5250,6 +5344,7 @@ e1000_get_cable_length(struct e1000_hw *hw,
     int32_t ret_val;
     uint16_t agc_value = 0;
     uint16_t cur_agc, min_agc = IGP01E1000_AGC_LENGTH_TABLE_SIZE;
+    uint16_t max_agc = 0;
     uint16_t i, phy_data;
     uint16_t cable_length;
 
@@ -5338,6 +5433,40 @@ e1000_get_cable_length(struct e1000_hw *hw,
                        IGP01E1000_AGC_RANGE) : 0;
         *max_length = e1000_igp_cable_length_table[agc_value] +
                       IGP01E1000_AGC_RANGE;
+    } else if (hw->phy_type == e1000_phy_igp_2) {
+        uint16_t agc_reg_array[IGP02E1000_PHY_CHANNEL_NUM] =
+                                                         {IGP02E1000_PHY_AGC_A,
+                                                          IGP02E1000_PHY_AGC_B,
+                                                          IGP02E1000_PHY_AGC_C,
+                                                          IGP02E1000_PHY_AGC_D};
+        /* Read the AGC registers for all channels */
+        for (i = 0; i < IGP02E1000_PHY_CHANNEL_NUM; i++) {
+            ret_val = e1000_read_phy_reg(hw, agc_reg_array[i], &phy_data);
+            if (ret_val)
+                return ret_val;
+
+	    /* Getting bits 15:9, which represent the combination of course and
+             * fine gain values.  The result is a number that can be put into
+             * the lookup table to obtain the approximate cable length. */
+            cur_agc = (phy_data >> IGP02E1000_AGC_LENGTH_SHIFT) &
+                      IGP02E1000_AGC_LENGTH_MASK;
+
+            /* Remove min & max AGC values from calculation. */
+            if (e1000_igp_2_cable_length_table[min_agc] > e1000_igp_2_cable_length_table[cur_agc])
+                min_agc = cur_agc;
+	    if (e1000_igp_2_cable_length_table[max_agc] < e1000_igp_2_cable_length_table[cur_agc])
+                max_agc = cur_agc;
+
+            agc_value += e1000_igp_2_cable_length_table[cur_agc];
+        }
+
+        agc_value -= (e1000_igp_2_cable_length_table[min_agc] + e1000_igp_2_cable_length_table[max_agc]);
+        agc_value /= (IGP02E1000_PHY_CHANNEL_NUM - 2);
+
+        /* Calculate cable length with the error range of +/- 10 meters. */
+        *min_length = ((agc_value - IGP02E1000_AGC_RANGE) > 0) ?
+                       (agc_value - IGP02E1000_AGC_RANGE) : 0;
+        *max_length = agc_value + IGP02E1000_AGC_RANGE;
     }
 
     return E1000_SUCCESS;
@@ -6465,6 +6594,8 @@ e1000_get_auto_rd_done(struct e1000_hw *hw)
     default:
         msec_delay(5);
         break;
+    case e1000_82571:
+    case e1000_82572:
     case e1000_82573:
         while(timeout) {
             if (E1000_READ_REG(hw, EECD) & E1000_EECD_AUTO_RD) break;
@@ -6494,10 +6625,31 @@ e1000_get_auto_rd_done(struct e1000_hw *hw)
 int32_t
 e1000_get_phy_cfg_done(struct e1000_hw *hw)
 {
+    int32_t timeout = PHY_CFG_TIMEOUT;
+    uint32_t cfg_mask = E1000_EEPROM_CFG_DONE;
+
     DEBUGFUNC("e1000_get_phy_cfg_done");
 
-    /* Simply wait for 10ms */
-    msec_delay(10);
+    switch (hw->mac_type) {
+    default:
+        msec_delay(10);
+        break;
+    case e1000_82571:
+    case e1000_82572:
+        while (timeout) {
+            if (E1000_READ_REG(hw, EEMNGCTL) & cfg_mask)
+                break;
+            else
+                msec_delay(1);
+            timeout--;
+        }
+
+        if (!timeout) {
+            DEBUGOUT("MNG configuration cycle has not completed.\n");
+            return -E1000_ERR_RESET;
+        }
+        break;
+    }
 
     return E1000_SUCCESS;
 }
@@ -6569,8 +6721,7 @@ e1000_put_hw_eeprom_semaphore(struct e1000_hw *hw)
         return;
 
     swsm = E1000_READ_REG(hw, SWSM);
-    /* Release both semaphores. */
-    swsm &= ~(E1000_SWSM_SMBI | E1000_SWSM_SWESMBI);
+        swsm &= ~(E1000_SWSM_SWESMBI);
     E1000_WRITE_REG(hw, SWSM, swsm);
 }
 
@@ -6606,6 +6757,8 @@ e1000_arc_subsystem_valid(struct e1000_hw *hw)
      * if this is the case.  We read FWSM to determine the manageability mode.
      */
     switch (hw->mac_type) {
+    case e1000_82571:
+    case e1000_82572:
     case e1000_82573:
         fwsm = E1000_READ_REG(hw, FWSM);
         if((fwsm & E1000_FWSM_MODE_MASK) != 0)

drivers/net/e1000/e1000_hw.h

@@ -57,6 +57,8 @@ typedef enum {
     e1000_82541_rev_2,
     e1000_82547,
     e1000_82547_rev_2,
+    e1000_82571,
+    e1000_82572,
     e1000_82573,
     e1000_num_macs
 } e1000_mac_type;
@@ -478,10 +480,16 @@ uint8_t e1000_arc_subsystem_valid(struct e1000_hw *hw);
 #define E1000_DEV_ID_82546GB_SERDES      0x107B
 #define E1000_DEV_ID_82546GB_PCIE        0x108A
 #define E1000_DEV_ID_82547EI             0x1019
+#define E1000_DEV_ID_82571EB_COPPER      0x105E
+#define E1000_DEV_ID_82571EB_FIBER       0x105F
+#define E1000_DEV_ID_82571EB_SERDES      0x1060
+#define E1000_DEV_ID_82572EI_COPPER      0x107D
+#define E1000_DEV_ID_82572EI_FIBER       0x107E
+#define E1000_DEV_ID_82572EI_SERDES      0x107F
 #define E1000_DEV_ID_82573E              0x108B
 #define E1000_DEV_ID_82573E_IAMT         0x108C
+#define E1000_DEV_ID_82573L              0x109A
 
-#define E1000_DEV_ID_82546GB_QUAD_COPPER 0x1099
 
 #define NODE_ADDRESS_SIZE 6
 #define ETH_LENGTH_OF_ADDRESS 6
@@ -833,6 +841,8 @@ struct e1000_ffvt_entry {
 #define E1000_FFMT_SIZE E1000_FLEXIBLE_FILTER_SIZE_MAX
 #define E1000_FFVT_SIZE E1000_FLEXIBLE_FILTER_SIZE_MAX
 
+#define E1000_DISABLE_SERDES_LOOPBACK   0x0400
+
 /* Register Set. (82543, 82544)
  *
  * Registers are defined to be 32 bits and  should be accessed as 32 bit values.
@@ -853,6 +863,7 @@ struct e1000_ffvt_entry {
 #define E1000_CTRL_EXT 0x00018  /* Extended Device Control - RW */
 #define E1000_FLA      0x0001C  /* Flash Access - RW */
 #define E1000_MDIC     0x00020  /* MDI Control - RW */
+#define E1000_SCTL     0x00024  /* SerDes Control - RW */
 #define E1000_FCAL     0x00028  /* Flow Control Address Low - RW */
 #define E1000_FCAH     0x0002C  /* Flow Control Address High -RW */
 #define E1000_FCT      0x00030  /* Flow Control Type - RW */
@@ -864,6 +875,12 @@ struct e1000_ffvt_entry {
 #define E1000_IMC      0x000D8  /* Interrupt Mask Clear - WO */
 #define E1000_IAM      0x000E0  /* Interrupt Acknowledge Auto Mask */
 #define E1000_RCTL     0x00100  /* RX Control - RW */
+#define E1000_RDTR1    0x02820  /* RX Delay Timer (1) - RW */
+#define E1000_RDBAL1   0x02900  /* RX Descriptor Base Address Low (1) - RW */
+#define E1000_RDBAH1   0x02904  /* RX Descriptor Base Address High (1) - RW */
+#define E1000_RDLEN1   0x02908  /* RX Descriptor Length (1) - RW */
+#define E1000_RDH1     0x02910  /* RX Descriptor Head (1) - RW */
+#define E1000_RDT1     0x02918  /* RX Descriptor Tail (1) - RW */
 #define E1000_FCTTV    0x00170  /* Flow Control Transmit Timer Value - RW */
 #define E1000_TXCW     0x00178  /* TX Configuration Word - RW */
 #define E1000_RXCW     0x00180  /* RX Configuration Word - RO */
@@ -895,6 +912,12 @@ struct e1000_ffvt_entry {
 #define E1000_RDH      0x02810  /* RX Descriptor Head - RW */
 #define E1000_RDT      0x02818  /* RX Descriptor Tail - RW */
 #define E1000_RDTR     0x02820  /* RX Delay Timer - RW */
+#define E1000_RDBAL0   E1000_RDBAL /* RX Desc Base Address Low (0) - RW */
+#define E1000_RDBAH0   E1000_RDBAH /* RX Desc Base Address High (0) - RW */
+#define E1000_RDLEN0   E1000_RDLEN /* RX Desc Length (0) - RW */
+#define E1000_RDH0     E1000_RDH   /* RX Desc Head (0) - RW */
+#define E1000_RDT0     E1000_RDT   /* RX Desc Tail (0) - RW */
+#define E1000_RDTR0    E1000_RDTR  /* RX Delay Timer (0) - RW */
 #define E1000_RXDCTL   0x02828  /* RX Descriptor Control - RW */
 #define E1000_RADV     0x0282C  /* RX Interrupt Absolute Delay Timer - RW */
 #define E1000_RSRPD    0x02C00  /* RX Small Packet Detect - RW */
@@ -980,15 +1003,15 @@ struct e1000_ffvt_entry {
 #define E1000_BPTC     0x040F4  /* Broadcast Packets TX Count - R/clr */
 #define E1000_TSCTC    0x040F8  /* TCP Segmentation Context TX - R/clr */
 #define E1000_TSCTFC   0x040FC  /* TCP Segmentation Context TX Fail - R/clr */
-#define E1000_IAC       0x4100  /* Interrupt Assertion Count */
-#define E1000_ICRXPTC   0x4104  /* Interrupt Cause Rx Packet Timer Expire Count */
-#define E1000_ICRXATC   0x4108  /* Interrupt Cause Rx Absolute Timer Expire Count */
-#define E1000_ICTXPTC   0x410C  /* Interrupt Cause Tx Packet Timer Expire Count */
-#define E1000_ICTXATC   0x4110  /* Interrupt Cause Tx Absolute Timer Expire Count */
-#define E1000_ICTXQEC   0x4118  /* Interrupt Cause Tx Queue Empty Count */
-#define E1000_ICTXQMTC  0x411C  /* Interrupt Cause Tx Queue Minimum Threshold Count */
-#define E1000_ICRXDMTC  0x4120  /* Interrupt Cause Rx Descriptor Minimum Threshold Count */
-#define E1000_ICRXOC    0x4124  /* Interrupt Cause Receiver Overrun Count */
+#define E1000_IAC      0x04100  /* Interrupt Assertion Count */
+#define E1000_ICRXPTC  0x04104  /* Interrupt Cause Rx Packet Timer Expire Count */
+#define E1000_ICRXATC  0x04108  /* Interrupt Cause Rx Absolute Timer Expire Count */
+#define E1000_ICTXPTC  0x0410C  /* Interrupt Cause Tx Packet Timer Expire Count */
+#define E1000_ICTXATC  0x04110  /* Interrupt Cause Tx Absolute Timer Expire Count */
+#define E1000_ICTXQEC  0x04118  /* Interrupt Cause Tx Queue Empty Count */
+#define E1000_ICTXQMTC 0x0411C  /* Interrupt Cause Tx Queue Minimum Threshold Count */
+#define E1000_ICRXDMTC 0x04120  /* Interrupt Cause Rx Descriptor Minimum Threshold Count */
+#define E1000_ICRXOC   0x04124  /* Interrupt Cause Receiver Overrun Count */
 #define E1000_RXCSUM   0x05000  /* RX Checksum Control - RW */
 #define E1000_RFCTL    0x05008  /* Receive Filter Control*/
 #define E1000_MTA      0x05200  /* Multicast Table Array - RW Array */
@@ -1018,6 +1041,14 @@ struct e1000_ffvt_entry {
 #define E1000_FWSM      0x05B54 /* FW Semaphore */
 #define E1000_FFLT_DBG  0x05F04 /* Debug Register */
 #define E1000_HICR      0x08F00 /* Host Inteface Control */
+
+/* RSS registers */
+#define E1000_CPUVEC    0x02C10 /* CPU Vector Register - RW */
+#define E1000_MRQC      0x05818 /* Multiple Receive Control - RW */
+#define E1000_RETA      0x05C00 /* Redirection Table - RW Array */
+#define E1000_RSSRK     0x05C80 /* RSS Random Key - RW Array */
+#define E1000_RSSIM     0x05864 /* RSS Interrupt Mask */
+#define E1000_RSSIR     0x05868 /* RSS Interrupt Request */
 /* Register Set (82542)
  *
  * Some of the 82542 registers are located at different offsets than they are
@@ -1032,6 +1063,7 @@ struct e1000_ffvt_entry {
 #define E1000_82542_CTRL_EXT E1000_CTRL_EXT
 #define E1000_82542_FLA      E1000_FLA
 #define E1000_82542_MDIC     E1000_MDIC
+#define E1000_82542_SCTL     E1000_SCTL
 #define E1000_82542_FCAL     E1000_FCAL
 #define E1000_82542_FCAH     E1000_FCAH
 #define E1000_82542_FCT      E1000_FCT
@@ -1049,6 +1081,18 @@ struct e1000_ffvt_entry {
 #define E1000_82542_RDLEN    0x00118
 #define E1000_82542_RDH      0x00120
 #define E1000_82542_RDT      0x00128
+#define E1000_82542_RDTR0    E1000_82542_RDTR
+#define E1000_82542_RDBAL0   E1000_82542_RDBAL
+#define E1000_82542_RDBAH0   E1000_82542_RDBAH
+#define E1000_82542_RDLEN0   E1000_82542_RDLEN
+#define E1000_82542_RDH0     E1000_82542_RDH
+#define E1000_82542_RDT0     E1000_82542_RDT
+#define E1000_82542_RDTR1    0x00130
+#define E1000_82542_RDBAL1   0x00138
+#define E1000_82542_RDBAH1   0x0013C
+#define E1000_82542_RDLEN1   0x00140
+#define E1000_82542_RDH1     0x00148
+#define E1000_82542_RDT1     0x00150
 #define E1000_82542_FCRTH    0x00160
 #define E1000_82542_FCRTL    0x00168
 #define E1000_82542_FCTTV    E1000_FCTTV
@@ -1197,6 +1241,13 @@ struct e1000_ffvt_entry {
 #define E1000_82542_ICRXOC      E1000_ICRXOC
 #define E1000_82542_HICR        E1000_HICR
 
+#define E1000_82542_CPUVEC      E1000_CPUVEC
+#define E1000_82542_MRQC        E1000_MRQC
+#define E1000_82542_RETA        E1000_RETA
+#define E1000_82542_RSSRK       E1000_RSSRK
+#define E1000_82542_RSSIM       E1000_RSSIM
+#define E1000_82542_RSSIR       E1000_RSSIR
+
 /* Statistics counters collected by the MAC */
 struct e1000_hw_stats {
     uint64_t crcerrs;
@@ -1336,6 +1387,7 @@ struct e1000_hw {
     boolean_t serdes_link_down;
     boolean_t tbi_compatibility_en;
     boolean_t tbi_compatibility_on;
+    boolean_t laa_is_present;
     boolean_t phy_reset_disable;
     boolean_t fc_send_xon;
     boolean_t fc_strict_ieee;
@@ -1374,6 +1426,7 @@ struct e1000_hw {
 #define E1000_CTRL_BEM32    0x00000400  /* Big Endian 32 mode */
 #define E1000_CTRL_FRCSPD   0x00000800  /* Force Speed */
 #define E1000_CTRL_FRCDPX   0x00001000  /* Force Duplex */
+#define E1000_CTRL_D_UD_EN  0x00002000  /* Dock/Undock enable */
 #define E1000_CTRL_D_UD_POLARITY 0x00004000 /* Defined polarity of Dock/Undock indication in SDP[0] */
 #define E1000_CTRL_SWDPIN0  0x00040000  /* SWDPIN 0 value */
 #define E1000_CTRL_SWDPIN1  0x00080000  /* SWDPIN 1 value */
@@ -1491,6 +1544,8 @@ struct e1000_hw {
 #define E1000_CTRL_EXT_WR_WMARK_320   0x01000000
 #define E1000_CTRL_EXT_WR_WMARK_384   0x02000000
 #define E1000_CTRL_EXT_WR_WMARK_448   0x03000000
+#define E1000_CTRL_EXT_CANC           0x04000000  /* Interrupt delay cancellation */
+#define E1000_CTRL_EXT_DRV_LOAD       0x10000000  /* Driver loaded bit for FW */
 #define E1000_CTRL_EXT_IAME           0x08000000  /* Interrupt acknowledge Auto-mask */
 #define E1000_CTRL_EXT_INT_TIMER_CLR  0x20000000  /* Clear Interrupt timers after IMS clear */
 
@@ -1524,6 +1579,7 @@ struct e1000_hw {
 #define E1000_LEDCTL_LED2_BLINK           0x00800000
 #define E1000_LEDCTL_LED3_MODE_MASK       0x0F000000
 #define E1000_LEDCTL_LED3_MODE_SHIFT      24
+#define E1000_LEDCTL_LED3_BLINK_RATE      0x20000000
 #define E1000_LEDCTL_LED3_IVRT            0x40000000
 #define E1000_LEDCTL_LED3_BLINK           0x80000000
 
@@ -1784,6 +1840,16 @@ struct e1000_hw {
 #define E1000_RXCSUM_IPPCSE    0x00001000   /* IP payload checksum enable */
 #define E1000_RXCSUM_PCSD      0x00002000   /* packet checksum disabled */
 
+/* Multiple Receive Queue Control */
+#define E1000_MRQC_ENABLE_MASK              0x00000003
+#define E1000_MRQC_ENABLE_RSS_2Q            0x00000001
+#define E1000_MRQC_ENABLE_RSS_INT           0x00000004
+#define E1000_MRQC_RSS_FIELD_MASK           0xFFFF0000
+#define E1000_MRQC_RSS_FIELD_IPV4_TCP       0x00010000
+#define E1000_MRQC_RSS_FIELD_IPV4           0x00020000
+#define E1000_MRQC_RSS_FIELD_IPV6_TCP       0x00040000
+#define E1000_MRQC_RSS_FIELD_IPV6_EX        0x00080000
+#define E1000_MRQC_RSS_FIELD_IPV6           0x00100000
 
 /* Definitions for power management and wakeup registers */
 /* Wake Up Control */
@@ -1928,6 +1994,7 @@ struct e1000_host_command_info {
 #define E1000_MDALIGN          4096
 
 #define E1000_GCR_BEM32                 0x00400000
+#define E1000_GCR_L1_ACT_WITHOUT_L0S_RX 0x08000000
 /* Function Active and Power State to MNG */
 #define E1000_FACTPS_FUNC0_POWER_STATE_MASK         0x00000003
 #define E1000_FACTPS_LAN0_VALID                     0x00000004
@@ -1980,6 +2047,7 @@ struct e1000_host_command_info {
 /* EEPROM Word Offsets */
 #define EEPROM_COMPAT                 0x0003
 #define EEPROM_ID_LED_SETTINGS        0x0004
+#define EEPROM_VERSION                0x0005
 #define EEPROM_SERDES_AMPLITUDE       0x0006 /* For SERDES output amplitude adjustment. */
 #define EEPROM_PHY_CLASS_WORD         0x0007
 #define EEPROM_INIT_CONTROL1_REG      0x000A
@@ -1990,6 +2058,8 @@ struct e1000_host_command_info {
 #define EEPROM_FLASH_VERSION          0x0032
 #define EEPROM_CHECKSUM_REG           0x003F
 
+#define E1000_EEPROM_CFG_DONE         0x00040000   /* MNG config cycle done */
+
 /* Word definitions for ID LED Settings */
 #define ID_LED_RESERVED_0000 0x0000
 #define ID_LED_RESERVED_FFFF 0xFFFF
@@ -2108,6 +2178,8 @@ struct e1000_host_command_info {
 #define E1000_PBA_22K 0x0016
 #define E1000_PBA_24K 0x0018
 #define E1000_PBA_30K 0x001E
+#define E1000_PBA_32K 0x0020
+#define E1000_PBA_38K 0x0026
 #define E1000_PBA_40K 0x0028
 #define E1000_PBA_48K 0x0030    /* 48KB, default RX allocation */
 
@@ -2592,11 +2664,11 @@ struct e1000_host_command_info {
 
 /* 7 bits (3 Coarse + 4 Fine) --> 128 optional values */
 #define IGP01E1000_AGC_LENGTH_TABLE_SIZE 128
-#define IGP02E1000_AGC_LENGTH_TABLE_SIZE 128
+#define IGP02E1000_AGC_LENGTH_TABLE_SIZE 113
 
 /* The precision error of the cable length is +/- 10 meters */
 #define IGP01E1000_AGC_RANGE    10
-#define IGP02E1000_AGC_RANGE    10
+#define IGP02E1000_AGC_RANGE    15
 
 /* IGP01E1000 PCS Initialization register */
 /* bits 3:6 in the PCS registers stores the channels polarity */

drivers/net/e1000/e1000_main.c

@@ -398,6 +398,10 @@ e1000_reset(struct e1000_adapter *adapter)
 	case e1000_82547_rev_2:
 		pba = E1000_PBA_30K;
 		break;
+	case e1000_82571:
+	case e1000_82572:
+		pba = E1000_PBA_38K;
+		break;
 	case e1000_82573:
 		pba = E1000_PBA_12K;
 		break;
@@ -475,6 +479,7 @@ e1000_probe(struct pci_dev *pdev,
 	struct net_device *netdev;
 	struct e1000_adapter *adapter;
 	unsigned long mmio_start, mmio_len;
+	uint32_t ctrl_ext;
 	uint32_t swsm;
 
 	static int cards_found = 0;
@@ -688,6 +693,12 @@ e1000_probe(struct pci_dev *pdev,
 
 	/* Let firmware know the driver has taken over */
 	switch(adapter->hw.mac_type) {
+	case e1000_82571:
+	case e1000_82572:
+		ctrl_ext = E1000_READ_REG(&adapter->hw, CTRL_EXT);
+		E1000_WRITE_REG(&adapter->hw, CTRL_EXT,
+				ctrl_ext | E1000_CTRL_EXT_DRV_LOAD);
+		break;
 	case e1000_82573:
 		swsm = E1000_READ_REG(&adapter->hw, SWSM);
 		E1000_WRITE_REG(&adapter->hw, SWSM,
@@ -732,6 +743,7 @@ e1000_remove(struct pci_dev *pdev)
 {
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct e1000_adapter *adapter = netdev_priv(netdev);
+	uint32_t ctrl_ext;
 	uint32_t manc, swsm;
 
 	flush_scheduled_work();
@@ -746,6 +758,12 @@ e1000_remove(struct pci_dev *pdev)
 	}
 
 	switch(adapter->hw.mac_type) {
+	case e1000_82571:
+	case e1000_82572:
+		ctrl_ext = E1000_READ_REG(&adapter->hw, CTRL_EXT);
+		E1000_WRITE_REG(&adapter->hw, CTRL_EXT,
+				ctrl_ext & ~E1000_CTRL_EXT_DRV_LOAD);
+		break;
 	case e1000_82573:
 		swsm = E1000_READ_REG(&adapter->hw, SWSM);
 		E1000_WRITE_REG(&adapter->hw, SWSM,
@@ -1236,7 +1254,7 @@ e1000_setup_rctl(struct e1000_adapter *adapter)
 		rctl |= E1000_RCTL_LPE;
 
 	/* Setup buffer sizes */
-	if(adapter->hw.mac_type == e1000_82573) {
+	if(adapter->hw.mac_type >= e1000_82571) {
 		/* We can now specify buffers in 1K increments.
 		 * BSIZE and BSEX are ignored in this case. */
 		rctl |= adapter->rx_buffer_len << 0x11;
@@ -1352,7 +1370,7 @@ e1000_configure_rx(struct e1000_adapter *adapter)
 		if(adapter->rx_csum == TRUE) {
 			rxcsum |= E1000_RXCSUM_TUOFL;
 
-			/* Enable 82573 IPv4 payload checksum for UDP fragments
+			/* Enable 82571 IPv4 payload checksum for UDP fragments
 			 * Must be used in conjunction with packet-split. */
 			if((adapter->hw.mac_type > e1000_82547_rev_2) && 
 			   (adapter->rx_ps)) {
@@ -1608,6 +1626,22 @@ e1000_set_mac(struct net_device *netdev, void *p)
 
 	e1000_rar_set(&adapter->hw, adapter->hw.mac_addr, 0);
 
+	/* With 82571 controllers, LAA may be overwritten (with the default)
+	 * due to controller reset from the other port. */
+	if (adapter->hw.mac_type == e1000_82571) {
+		/* activate the work around */
+		adapter->hw.laa_is_present = 1;
+
+		/* Hold a copy of the LAA in RAR[14] This is done so that 
+		 * between the time RAR[0] gets clobbered  and the time it 
+		 * gets fixed (in e1000_watchdog), the actual LAA is in one 
+		 * of the RARs and no incoming packets directed to this port
+		 * are dropped. Eventaully the LAA will be in RAR[0] and 
+		 * RAR[14] */
+		e1000_rar_set(&adapter->hw, adapter->hw.mac_addr, 
+					E1000_RAR_ENTRIES - 1);
+	}
+
 	if(adapter->hw.mac_type == e1000_82542_rev2_0)
 		e1000_leave_82542_rst(adapter);
 
@@ -1633,9 +1667,12 @@ e1000_set_multi(struct net_device *netdev)
 	unsigned long flags;
 	uint32_t rctl;
 	uint32_t hash_value;
-	int i;
+	int i, rar_entries = E1000_RAR_ENTRIES;
 
 	spin_lock_irqsave(&adapter->tx_lock, flags);
+	/* reserve RAR[14] for LAA over-write work-around */
+	if (adapter->hw.mac_type == e1000_82571)
+		rar_entries--;
 
 	/* Check for Promiscuous and All Multicast modes */
 
@@ -1660,11 +1697,12 @@ e1000_set_multi(struct net_device *netdev)
 	/* load the first 14 multicast address into the exact filters 1-14
 	 * RAR 0 is used for the station MAC adddress
 	 * if there are not 14 addresses, go ahead and clear the filters
+	 * -- with 82571 controllers only 0-13 entries are filled here
 	 */
 	mc_ptr = netdev->mc_list;
 
-	for(i = 1; i < E1000_RAR_ENTRIES; i++) {
-		if(mc_ptr) {
+	for(i = 1; i < rar_entries; i++) {
+		if (mc_ptr) {
 			e1000_rar_set(hw, mc_ptr->dmi_addr, i);
 			mc_ptr = mc_ptr->next;
 		} else {
@@ -1848,6 +1886,11 @@ e1000_watchdog_task(struct e1000_adapter *adapter)
 	/* Force detection of hung controller every watchdog period */
 	adapter->detect_tx_hung = TRUE;
 
+	/* With 82571 controllers, LAA may be overwritten due to controller 
+	 * reset from the other port. Set the appropriate LAA in RAR[0] */
+	if (adapter->hw.mac_type == e1000_82571 && adapter->hw.laa_is_present)
+		e1000_rar_set(&adapter->hw, adapter->hw.mac_addr, 0);
+
 	/* Reset the timer */
 	mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
 }
@@ -2269,6 +2312,27 @@ e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
  		local_irq_restore(flags); 
  		return NETDEV_TX_LOCKED; 
  	} 
+#ifdef NETIF_F_TSO
+	/* TSO Workaround for 82571/2 Controllers -- if skb->data
+	 * points to just header, pull a few bytes of payload from 
+	 * frags into skb->data */
+	if (skb_shinfo(skb)->tso_size) {
+		uint8_t hdr_len;
+		hdr_len = ((skb->h.raw - skb->data) + (skb->h.th->doff << 2));
+		if (skb->data_len && (hdr_len < (skb->len - skb->data_len)) && 
+			(adapter->hw.mac_type == e1000_82571 ||
+			adapter->hw.mac_type == e1000_82572)) {
+			unsigned int pull_size;
+			pull_size = min((unsigned int)4, skb->data_len);
+			if (!__pskb_pull_tail(skb, pull_size)) {
+				printk(KERN_ERR "__pskb_pull_tail failed.\n");
+				dev_kfree_skb_any(skb);
+				return -EFAULT;
+			}
+		}
+	}
+#endif
+
 	if(adapter->hw.tx_pkt_filtering && (adapter->hw.mac_type == e1000_82573) )
 		e1000_transfer_dhcp_info(adapter, skb);
 
@@ -2310,7 +2374,7 @@ e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 		tx_flags |= E1000_TX_FLAGS_CSUM;
 
 	/* Old method was to assume IPv4 packet by default if TSO was enabled.
-	 * 82573 hardware supports TSO capabilities for IPv6 as well...
+	 * 82571 hardware supports TSO capabilities for IPv6 as well...
 	 * no longer assume, we must. */
 	if(likely(skb->protocol == ntohs(ETH_P_IP)))
 		tx_flags |= E1000_TX_FLAGS_IPV4;
@@ -2389,9 +2453,18 @@ e1000_change_mtu(struct net_device *netdev, int new_mtu)
 			return -EINVAL;
 	}
 
-#define MAX_STD_JUMBO_FRAME_SIZE 9216
+#define MAX_STD_JUMBO_FRAME_SIZE 9234
 	/* might want this to be bigger enum check... */
-	if (adapter->hw.mac_type == e1000_82573 &&
+	/* 82571 controllers limit jumbo frame size to 10500 bytes */
+	if ((adapter->hw.mac_type == e1000_82571 || 
+	     adapter->hw.mac_type == e1000_82572) &&
+	    max_frame > MAX_STD_JUMBO_FRAME_SIZE) {
+		DPRINTK(PROBE, ERR, "MTU > 9216 bytes not supported "
+				    "on 82571 and 82572 controllers.\n");
+		return -EINVAL;
+	}
+
+	if(adapter->hw.mac_type == e1000_82573 &&
 	    max_frame > MAXIMUM_ETHERNET_FRAME_SIZE) {
 		DPRINTK(PROBE, ERR, "Jumbo Frames not supported "
 				    "on 82573\n");
@@ -3716,6 +3789,12 @@ e1000_suspend(struct pci_dev *pdev, pm_message_t state)
 	}
 
 	switch(adapter->hw.mac_type) {
+	case e1000_82571:
+	case e1000_82572:
+		ctrl_ext = E1000_READ_REG(&adapter->hw, CTRL_EXT);
+		E1000_WRITE_REG(&adapter->hw, CTRL_EXT,
+				ctrl_ext & ~E1000_CTRL_EXT_DRV_LOAD);
+		break;
 	case e1000_82573:
 		swsm = E1000_READ_REG(&adapter->hw, SWSM);
 		E1000_WRITE_REG(&adapter->hw, SWSM,
@@ -3738,6 +3817,7 @@ e1000_resume(struct pci_dev *pdev)
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct e1000_adapter *adapter = netdev_priv(netdev);
 	uint32_t manc, ret_val, swsm;
+	uint32_t ctrl_ext;
 
 	pci_set_power_state(pdev, PCI_D0);
 	pci_restore_state(pdev);
@@ -3763,6 +3843,12 @@ e1000_resume(struct pci_dev *pdev)
 	}
 
 	switch(adapter->hw.mac_type) {
+	case e1000_82571:
+	case e1000_82572:
+		ctrl_ext = E1000_READ_REG(&adapter->hw, CTRL_EXT);
+		E1000_WRITE_REG(&adapter->hw, CTRL_EXT,
+				ctrl_ext | E1000_CTRL_EXT_DRV_LOAD);
+		break;
 	case e1000_82573:
 		swsm = E1000_READ_REG(&adapter->hw, SWSM);
 		E1000_WRITE_REG(&adapter->hw, SWSM,