[kernel] r13856 - in dists/lenny/linux-2.6/debian: . patches/features/all patches/series
Dann Frazier
dannf at alioth.debian.org
Tue Jun 30 05:03:41 UTC 2009
Author: dannf
Date: Tue Jun 30 05:03:37 2009
New Revision: 13856
Log:
* e1000e: add support for 82574L controllers (closes: #534519)
Added:
dists/lenny/linux-2.6/debian/patches/features/all/e1000e-add-support-for-82574l.patch
dists/lenny/linux-2.6/debian/patches/features/all/e1000e-test-for-unusable-MSI-support.patch
Modified:
dists/lenny/linux-2.6/debian/changelog
dists/lenny/linux-2.6/debian/patches/series/18
Modified: dists/lenny/linux-2.6/debian/changelog
==============================================================================
--- dists/lenny/linux-2.6/debian/changelog Mon Jun 29 18:04:19 2009 (r13855)
+++ dists/lenny/linux-2.6/debian/changelog Tue Jun 30 05:03:37 2009 (r13856)
@@ -12,6 +12,9 @@
* MIPS: IP22/28: Switch over to RTC class driver
* [mips/r4k-ip22] Build in RTC_DRV_DS1286. (Closes: #533895)
+ [ dann frazier ]
+ * e1000e: add support for 82574L controllers (closes: #534519)
+
-- maximilian attems <maks at debian.org> Wed, 10 Jun 2009 15:34:04 +0200
linux-2.6 (2.6.26-17) stable; urgency=high
Added: dists/lenny/linux-2.6/debian/patches/features/all/e1000e-add-support-for-82574l.patch
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ dists/lenny/linux-2.6/debian/patches/features/all/e1000e-add-support-for-82574l.patch Tue Jun 30 05:03:37 2009 (r13856)
@@ -0,0 +1,1511 @@
+commit 4662e82b2cb41c60826e50474dd86dd5c6372b0c
+Author: Bruce Allan <bruce.w.allan at intel.com>
+Date: Tue Aug 26 18:37:06 2008 -0700
+
+ e1000e: add support for new 82574L part
+
+ This new part has the same feature set as previous parts with the addition
+ of MSI-X support.
+
+ Signed-off-by: Bruce Allan <bruce.w.allan at intel.com>
+ Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher at intel.com>
+ Signed-off-by: Jeff Garzik <jgarzik at redhat.com>
+
+Backported to Debian's 2.6.26 by dann frazier <dannf at debian.org>
+
+diff -urpN linux-source-2.6.26.orig/drivers/net/e1000e/82571.c linux-source-2.6.26/drivers/net/e1000e/82571.c
+--- linux-source-2.6.26.orig/drivers/net/e1000e/82571.c 2008-07-13 15:51:29.000000000 -0600
++++ linux-source-2.6.26/drivers/net/e1000e/82571.c 2009-06-19 17:25:39.000000000 -0600
+@@ -38,6 +38,7 @@
+ * 82573V Gigabit Ethernet Controller (Copper)
+ * 82573E Gigabit Ethernet Controller (Copper)
+ * 82573L Gigabit Ethernet Controller
++ * 82574L Gigabit Network Connection
+ */
+
+ #include <linux/netdevice.h>
+@@ -54,6 +55,8 @@
+
+ #define E1000_GCR_L1_ACT_WITHOUT_L0S_RX 0x08000000
+
++#define E1000_NVM_INIT_CTRL2_MNGM 0x6000 /* Manageability Operation Mode mask */
++
+ static s32 e1000_get_phy_id_82571(struct e1000_hw *hw);
+ static s32 e1000_setup_copper_link_82571(struct e1000_hw *hw);
+ static s32 e1000_setup_fiber_serdes_link_82571(struct e1000_hw *hw);
+@@ -63,6 +66,8 @@ static s32 e1000_fix_nvm_checksum_82571(
+ static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw);
+ static s32 e1000_setup_link_82571(struct e1000_hw *hw);
+ static void e1000_clear_hw_cntrs_82571(struct e1000_hw *hw);
++static bool e1000_check_mng_mode_82574(struct e1000_hw *hw);
++static s32 e1000_led_on_82574(struct e1000_hw *hw);
+
+ /**
+ * e1000_init_phy_params_82571 - Init PHY func ptrs.
+@@ -92,6 +97,9 @@ static s32 e1000_init_phy_params_82571(s
+ case e1000_82573:
+ phy->type = e1000_phy_m88;
+ break;
++ case e1000_82574:
++ phy->type = e1000_phy_bm;
++ break;
+ default:
+ return -E1000_ERR_PHY;
+ break;
+@@ -111,6 +119,10 @@ static s32 e1000_init_phy_params_82571(s
+ if (phy->id != M88E1111_I_PHY_ID)
+ return -E1000_ERR_PHY;
+ break;
++ case e1000_82574:
++ if (phy->id != BME1000_E_PHY_ID_R2)
++ return -E1000_ERR_PHY;
++ break;
+ default:
+ return -E1000_ERR_PHY;
+ break;
+@@ -150,6 +162,7 @@ static s32 e1000_init_nvm_params_82571(s
+
+ switch (hw->mac.type) {
+ case e1000_82573:
++ case e1000_82574:
+ if (((eecd >> 15) & 0x3) == 0x3) {
+ nvm->type = e1000_nvm_flash_hw;
+ nvm->word_size = 2048;
+@@ -245,6 +258,17 @@ static s32 e1000_init_mac_params_82571(s
+ break;
+ }
+
++ switch (hw->mac.type) {
++ case e1000_82574:
++ func->check_mng_mode = e1000_check_mng_mode_82574;
++ func->led_on = e1000_led_on_82574;
++ break;
++ default:
++ func->check_mng_mode = e1000e_check_mng_mode_generic;
++ func->led_on = e1000e_led_on_generic;
++ break;
++ }
++
+ return 0;
+ }
+
+@@ -330,6 +354,8 @@ static s32 e1000_get_variants_82571(stru
+ static s32 e1000_get_phy_id_82571(struct e1000_hw *hw)
+ {
+ struct e1000_phy_info *phy = &hw->phy;
++ s32 ret_val;
++ u16 phy_id = 0;
+
+ switch (hw->mac.type) {
+ case e1000_82571:
+@@ -345,6 +371,20 @@ static s32 e1000_get_phy_id_82571(struct
+ case e1000_82573:
+ return e1000e_get_phy_id(hw);
+ break;
++ case e1000_82574:
++ ret_val = e1e_rphy(hw, PHY_ID1, &phy_id);
++ if (ret_val)
++ return ret_val;
++
++ phy->id = (u32)(phy_id << 16);
++ udelay(20);
++ ret_val = e1e_rphy(hw, PHY_ID2, &phy_id);
++ if (ret_val)
++ return ret_val;
++
++ phy->id |= (u32)(phy_id);
++ phy->revision = (u32)(phy_id & ~PHY_REVISION_MASK);
++ break;
+ default:
+ return -E1000_ERR_PHY;
+ break;
+@@ -421,7 +461,7 @@ static s32 e1000_acquire_nvm_82571(struc
+ if (ret_val)
+ return ret_val;
+
+- if (hw->mac.type != e1000_82573)
++ if (hw->mac.type != e1000_82573 && hw->mac.type != e1000_82574)
+ ret_val = e1000e_acquire_nvm(hw);
+
+ if (ret_val)
+@@ -461,6 +501,7 @@ static s32 e1000_write_nvm_82571(struct
+
+ switch (hw->mac.type) {
+ case e1000_82573:
++ case e1000_82574:
+ ret_val = e1000_write_nvm_eewr_82571(hw, offset, words, data);
+ break;
+ case e1000_82571:
+@@ -735,7 +776,7 @@ static s32 e1000_reset_hw_82571(struct e
+ * Must acquire the MDIO ownership before MAC reset.
+ * Ownership defaults to firmware after a reset.
+ */
+- if (hw->mac.type == e1000_82573) {
++ if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) {
+ extcnf_ctrl = er32(EXTCNF_CTRL);
+ extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP;
+
+@@ -776,7 +817,7 @@ static s32 e1000_reset_hw_82571(struct e
+ * Need to wait for Phy configuration completion before accessing
+ * NVM and Phy.
+ */
+- if (hw->mac.type == e1000_82573)
++ if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574)
+ msleep(25);
+
+ /* Clear any pending interrupt events. */
+@@ -843,7 +884,7 @@ static s32 e1000_init_hw_82571(struct e1
+ ew32(TXDCTL(0), reg_data);
+
+ /* ...for both queues. */
+- if (mac->type != e1000_82573) {
++ if (mac->type != e1000_82573 && mac->type != e1000_82574) {
+ reg_data = er32(TXDCTL(1));
+ reg_data = (reg_data & ~E1000_TXDCTL_WTHRESH) |
+ E1000_TXDCTL_FULL_TX_DESC_WB |
+@@ -918,19 +959,28 @@ static void e1000_initialize_hw_bits_825
+ }
+
+ /* Device Control */
+- if (hw->mac.type == e1000_82573) {
++ if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) {
+ reg = er32(CTRL);
+ reg &= ~(1 << 29);
+ ew32(CTRL, reg);
+ }
+
+ /* Extended Device Control */
+- if (hw->mac.type == e1000_82573) {
++ if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) {
+ reg = er32(CTRL_EXT);
+ reg &= ~(1 << 23);
+ reg |= (1 << 22);
+ ew32(CTRL_EXT, reg);
+ }
++
++ /* PCI-Ex Control Register */
++ if (hw->mac.type == e1000_82574) {
++ reg = er32(GCR);
++ reg |= (1 << 22);
++ ew32(GCR, reg);
++ }
++
++ return;
+ }
+
+ /**
+@@ -947,7 +997,7 @@ void e1000e_clear_vfta(struct e1000_hw *
+ u32 vfta_offset = 0;
+ u32 vfta_bit_in_reg = 0;
+
+- if (hw->mac.type == e1000_82573) {
++ if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) {
+ if (hw->mng_cookie.vlan_id != 0) {
+ /*
+ * The VFTA is a 4096b bit-field, each identifying
+@@ -976,6 +1026,48 @@ void e1000e_clear_vfta(struct e1000_hw *
+ }
+
+ /**
++ * e1000_check_mng_mode_82574 - Check manageability is enabled
++ * @hw: pointer to the HW structure
++ *
++ * Reads the NVM Initialization Control Word 2 and returns true
++ * (>0) if any manageability is enabled, else false (0).
++ **/
++static bool e1000_check_mng_mode_82574(struct e1000_hw *hw)
++{
++ u16 data;
++
++ e1000_read_nvm(hw, NVM_INIT_CONTROL2_REG, 1, &data);
++ return (data & E1000_NVM_INIT_CTRL2_MNGM) != 0;
++}
++
++/**
++ * e1000_led_on_82574 - Turn LED on
++ * @hw: pointer to the HW structure
++ *
++ * Turn LED on.
++ **/
++static s32 e1000_led_on_82574(struct e1000_hw *hw)
++{
++ u32 ctrl;
++ u32 i;
++
++ ctrl = hw->mac.ledctl_mode2;
++ if (!(E1000_STATUS_LU & er32(STATUS))) {
++ /*
++ * If no link, then turn LED on by setting the invert bit
++ * for each LED that's "on" (0x0E) in ledctl_mode2.
++ */
++ for (i = 0; i < 4; i++)
++ if (((hw->mac.ledctl_mode2 >> (i * 8)) & 0xFF) ==
++ E1000_LEDCTL_MODE_LED_ON)
++ ctrl |= (E1000_LEDCTL_LED0_IVRT << (i * 8));
++ }
++ ew32(LEDCTL, ctrl);
++
++ return 0;
++}
++
++/**
+ * e1000_update_mc_addr_list_82571 - Update Multicast addresses
+ * @hw: pointer to the HW structure
+ * @mc_addr_list: array of multicast addresses to program
+@@ -1018,7 +1110,8 @@ static s32 e1000_setup_link_82571(struct
+ * the default flow control setting, so we explicitly
+ * set it to full.
+ */
+- if (hw->mac.type == e1000_82573)
++ if ((hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) &&
++ hw->fc.type == e1000_fc_default)
+ hw->fc.type = e1000_fc_full;
+
+ return e1000e_setup_link(hw);
+@@ -1045,6 +1138,7 @@ static s32 e1000_setup_copper_link_82571
+
+ switch (hw->phy.type) {
+ case e1000_phy_m88:
++ case e1000_phy_bm:
+ ret_val = e1000e_copper_link_setup_m88(hw);
+ break;
+ case e1000_phy_igp_2:
+@@ -1114,11 +1208,10 @@ static s32 e1000_valid_led_default_82571
+ return ret_val;
+ }
+
+- if (hw->mac.type == e1000_82573 &&
++ if ((hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) &&
+ *data == ID_LED_RESERVED_F746)
+ *data = ID_LED_DEFAULT_82573;
+- else if (*data == ID_LED_RESERVED_0000 ||
+- *data == ID_LED_RESERVED_FFFF)
++ else if (*data == ID_LED_RESERVED_0000 || *data == ID_LED_RESERVED_FFFF)
+ *data = ID_LED_DEFAULT;
+
+ return 0;
+@@ -1265,13 +1358,13 @@ static void e1000_clear_hw_cntrs_82571(s
+ }
+
+ static struct e1000_mac_operations e82571_mac_ops = {
+- .mng_mode_enab = E1000_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT,
++ /* .check_mng_mode: mac type dependent */
+ /* .check_for_link: media type dependent */
+ .cleanup_led = e1000e_cleanup_led_generic,
+ .clear_hw_cntrs = e1000_clear_hw_cntrs_82571,
+ .get_bus_info = e1000e_get_bus_info_pcie,
+ /* .get_link_up_info: media type dependent */
+- .led_on = e1000e_led_on_generic,
++ /* .led_on: mac type dependent */
+ .led_off = e1000e_led_off_generic,
+ .update_mc_addr_list = e1000_update_mc_addr_list_82571,
+ .reset_hw = e1000_reset_hw_82571,
+@@ -1312,6 +1405,22 @@ static struct e1000_phy_operations e82_p
+ .write_phy_reg = e1000e_write_phy_reg_m88,
+ };
+
++static struct e1000_phy_operations e82_phy_ops_bm = {
++ .acquire_phy = e1000_get_hw_semaphore_82571,
++ .check_reset_block = e1000e_check_reset_block_generic,
++ .commit_phy = e1000e_phy_sw_reset,
++ .force_speed_duplex = e1000e_phy_force_speed_duplex_m88,
++ .get_cfg_done = e1000e_get_cfg_done,
++ .get_cable_length = e1000e_get_cable_length_m88,
++ .get_phy_info = e1000e_get_phy_info_m88,
++ .read_phy_reg = e1000e_read_phy_reg_bm2,
++ .release_phy = e1000_put_hw_semaphore_82571,
++ .reset_phy = e1000e_phy_hw_reset_generic,
++ .set_d0_lplu_state = e1000_set_d0_lplu_state_82571,
++ .set_d3_lplu_state = e1000e_set_d3_lplu_state,
++ .write_phy_reg = e1000e_write_phy_reg_bm2,
++};
++
+ static struct e1000_nvm_operations e82571_nvm_ops = {
+ .acquire_nvm = e1000_acquire_nvm_82571,
+ .read_nvm = e1000e_read_nvm_eerd,
+@@ -1375,3 +1484,21 @@ struct e1000_info e1000_82573_info = {
+ .nvm_ops = &e82571_nvm_ops,
+ };
+
++struct e1000_info e1000_82574_info = {
++ .mac = e1000_82574,
++ .flags = FLAG_HAS_HW_VLAN_FILTER
++ | FLAG_HAS_MSIX
++ | FLAG_HAS_JUMBO_FRAMES
++ | FLAG_HAS_WOL
++ | FLAG_APME_IN_CTRL3
++ | FLAG_RX_CSUM_ENABLED
++ | FLAG_HAS_SMART_POWER_DOWN
++ | FLAG_HAS_AMT
++ | FLAG_HAS_CTRLEXT_ON_LOAD,
++ .pba = 20,
++ .get_variants = e1000_get_variants_82571,
++ .mac_ops = &e82571_mac_ops,
++ .phy_ops = &e82_phy_ops_bm,
++ .nvm_ops = &e82571_nvm_ops,
++};
++
+diff -urpN linux-source-2.6.26.orig/drivers/net/e1000e/defines.h linux-source-2.6.26/drivers/net/e1000e/defines.h
+--- linux-source-2.6.26.orig/drivers/net/e1000e/defines.h 2009-06-19 17:25:12.000000000 -0600
++++ linux-source-2.6.26/drivers/net/e1000e/defines.h 2009-06-19 17:25:39.000000000 -0600
+@@ -71,9 +71,11 @@
+ #define E1000_CTRL_EXT_RO_DIS 0x00020000 /* Relaxed Ordering disable */
+ #define E1000_CTRL_EXT_LINK_MODE_MASK 0x00C00000
+ #define E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES 0x00C00000
++#define E1000_CTRL_EXT_EIAME 0x01000000
+ #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 */
++#define E1000_CTRL_EXT_PBA_CLR 0x80000000 /* PBA Clear */
+
+ /* Receive Descriptor bit definitions */
+ #define E1000_RXD_STAT_DD 0x01 /* Descriptor Done */
+@@ -299,6 +301,7 @@
+ #define E1000_RXCSUM_IPPCSE 0x00001000 /* IP payload checksum enable */
+
+ /* Header split receive */
++#define E1000_RFCTL_ACK_DIS 0x00001000
+ #define E1000_RFCTL_EXTEN 0x00008000
+ #define E1000_RFCTL_IPV6_EX_DIS 0x00010000
+ #define E1000_RFCTL_NEW_IPV6_EXT_DIS 0x00020000
+@@ -363,6 +366,11 @@
+ #define E1000_ICR_RXDMT0 0x00000010 /* Rx desc min. threshold (0) */
+ #define E1000_ICR_RXT0 0x00000080 /* Rx timer intr (ring 0) */
+ #define E1000_ICR_INT_ASSERTED 0x80000000 /* If this bit asserted, the driver should claim the interrupt */
++#define E1000_ICR_RXQ0 0x00100000 /* Rx Queue 0 Interrupt */
++#define E1000_ICR_RXQ1 0x00200000 /* Rx Queue 1 Interrupt */
++#define E1000_ICR_TXQ0 0x00400000 /* Tx Queue 0 Interrupt */
++#define E1000_ICR_TXQ1 0x00800000 /* Tx Queue 1 Interrupt */
++#define E1000_ICR_OTHER 0x01000000 /* Other Interrupts */
+
+ /*
+ * This defines the bits that are set in the Interrupt Mask
+@@ -386,6 +394,11 @@
+ #define E1000_IMS_RXSEQ E1000_ICR_RXSEQ /* Rx sequence error */
+ #define E1000_IMS_RXDMT0 E1000_ICR_RXDMT0 /* Rx desc min. threshold */
+ #define E1000_IMS_RXT0 E1000_ICR_RXT0 /* Rx timer intr */
++#define E1000_IMS_RXQ0 E1000_ICR_RXQ0 /* Rx Queue 0 Interrupt */
++#define E1000_IMS_RXQ1 E1000_ICR_RXQ1 /* Rx Queue 1 Interrupt */
++#define E1000_IMS_TXQ0 E1000_ICR_TXQ0 /* Tx Queue 0 Interrupt */
++#define E1000_IMS_TXQ1 E1000_ICR_TXQ1 /* Tx Queue 1 Interrupt */
++#define E1000_IMS_OTHER E1000_ICR_OTHER /* Other Interrupts */
+
+ /* Interrupt Cause Set */
+ #define E1000_ICS_LSC E1000_ICR_LSC /* Link Status Change */
+diff -urpN linux-source-2.6.26.orig/drivers/net/e1000e/e1000.h linux-source-2.6.26/drivers/net/e1000e/e1000.h
+--- linux-source-2.6.26.orig/drivers/net/e1000e/e1000.h 2009-06-19 17:25:12.000000000 -0600
++++ linux-source-2.6.26/drivers/net/e1000e/e1000.h 2009-06-19 17:25:39.000000000 -0600
+@@ -61,6 +61,11 @@ struct e1000_info;
+ ndev_printk(KERN_NOTICE , netdev, format, ## arg)
+
+
++/* Interrupt modes, as used by the IntMode paramter */
++#define E1000E_INT_MODE_LEGACY 0
++#define E1000E_INT_MODE_MSI 1
++#define E1000E_INT_MODE_MSIX 2
++
+ /* Tx/Rx descriptor defines */
+ #define E1000_DEFAULT_TXD 256
+ #define E1000_MAX_TXD 4096
+@@ -94,6 +99,7 @@ enum e1000_boards {
+ board_82571,
+ board_82572,
+ board_82573,
++ board_82574,
+ board_80003es2lan,
+ board_ich8lan,
+ board_ich9lan,
+@@ -145,6 +151,12 @@ struct e1000_ring {
+ /* array of buffer information structs */
+ struct e1000_buffer *buffer_info;
+
++ char name[IFNAMSIZ + 5];
++ u32 ims_val;
++ u32 itr_val;
++ u16 itr_register;
++ int set_itr;
++
+ struct sk_buff *rx_skb_top;
+
+ struct e1000_queue_stats stats;
+@@ -273,6 +285,9 @@ struct e1000_adapter {
+ u32 test_icr;
+
+ u32 msg_enable;
++ struct msix_entry *msix_entries;
++ int int_mode;
++ u32 eiac_mask;
+
+ u32 eeprom_wol;
+ u32 wol;
+@@ -305,6 +320,7 @@ struct e1000_info {
+ #define FLAG_HAS_SWSM_ON_LOAD (1 << 6)
+ #define FLAG_HAS_JUMBO_FRAMES (1 << 7)
+ #define FLAG_IS_ICH (1 << 9)
++#define FLAG_HAS_MSIX (1 << 10)
+ #define FLAG_HAS_SMART_POWER_DOWN (1 << 11)
+ #define FLAG_IS_QUAD_PORT_A (1 << 12)
+ #define FLAG_IS_QUAD_PORT (1 << 13)
+@@ -363,6 +379,8 @@ extern int e1000e_setup_tx_resources(str
+ extern void e1000e_free_rx_resources(struct e1000_adapter *adapter);
+ extern void e1000e_free_tx_resources(struct e1000_adapter *adapter);
+ extern void e1000e_update_stats(struct e1000_adapter *adapter);
++extern void e1000e_set_interrupt_capability(struct e1000_adapter *adapter);
++extern void e1000e_reset_interrupt_capability(struct e1000_adapter *adapter);
+
+ extern unsigned int copybreak;
+
+@@ -371,6 +389,7 @@ extern char *e1000e_get_hw_dev_name(stru
+ extern struct e1000_info e1000_82571_info;
+ extern struct e1000_info e1000_82572_info;
+ extern struct e1000_info e1000_82573_info;
++extern struct e1000_info e1000_82574_info;
+ extern struct e1000_info e1000_ich8_info;
+ extern struct e1000_info e1000_ich9_info;
+ extern struct e1000_info e1000_es2_info;
+@@ -449,6 +468,8 @@ extern enum e1000_phy_type e1000e_get_ph
+ 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);
+ extern s32 e1000e_read_phy_reg_bm(struct e1000_hw *hw, u32 offset, u16 *data);
++extern s32 e1000e_read_phy_reg_bm2(struct e1000_hw *hw, u32 offset, u16 *data);
++extern s32 e1000e_write_phy_reg_bm2(struct e1000_hw *hw, u32 offset, u16 data);
+ extern void e1000e_phy_force_speed_duplex_setup(struct e1000_hw *hw, u16 *phy_ctrl);
+ extern s32 e1000e_write_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 data);
+ extern s32 e1000e_read_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 *data);
+@@ -519,7 +540,12 @@ static inline s32 e1000_get_phy_info(str
+ return hw->phy.ops.get_phy_info(hw);
+ }
+
+-extern bool e1000e_check_mng_mode(struct e1000_hw *hw);
++static inline s32 e1000e_check_mng_mode(struct e1000_hw *hw)
++{
++ return hw->mac.ops.check_mng_mode(hw);
++}
++
++extern bool e1000e_check_mng_mode_generic(struct e1000_hw *hw);
+ extern bool e1000e_enable_tx_pkt_filtering(struct e1000_hw *hw);
+ extern s32 e1000e_mng_write_dhcp_info(struct e1000_hw *hw, u8 *buffer, u16 length);
+
+diff -urpN linux-source-2.6.26.orig/drivers/net/e1000e/es2lan.c linux-source-2.6.26/drivers/net/e1000e/es2lan.c
+--- linux-source-2.6.26.orig/drivers/net/e1000e/es2lan.c 2008-07-13 15:51:29.000000000 -0600
++++ linux-source-2.6.26/drivers/net/e1000e/es2lan.c 2009-06-19 17:25:39.000000000 -0600
+@@ -1247,7 +1247,7 @@ static void e1000_clear_hw_cntrs_80003es
+ }
+
+ static struct e1000_mac_operations es2_mac_ops = {
+- .mng_mode_enab = E1000_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT,
++ .check_mng_mode = e1000e_check_mng_mode_generic,
+ /* check_for_link dependent on media type */
+ .cleanup_led = e1000e_cleanup_led_generic,
+ .clear_hw_cntrs = e1000_clear_hw_cntrs_80003es2lan,
+diff -urpN linux-source-2.6.26.orig/drivers/net/e1000e/ethtool.c linux-source-2.6.26/drivers/net/e1000e/ethtool.c
+--- linux-source-2.6.26.orig/drivers/net/e1000e/ethtool.c 2008-07-13 15:51:29.000000000 -0600
++++ linux-source-2.6.26/drivers/net/e1000e/ethtool.c 2009-06-19 17:25:39.000000000 -0600
+@@ -571,6 +571,7 @@ static int e1000_set_eeprom(struct net_d
+ * and flush shadow RAM for 82573 controllers
+ */
+ if ((ret_val == 0) && ((first_word <= NVM_CHECKSUM_REG) ||
++ (hw->mac.type == e1000_82574) ||
+ (hw->mac.type == e1000_82573)))
+ e1000e_update_nvm_checksum(hw);
+
+@@ -785,6 +786,7 @@ static int e1000_reg_test(struct e1000_a
+ toggle = 0x7FFFF3FF;
+ break;
+ case e1000_82573:
++ case e1000_82574:
+ case e1000_ich8lan:
+ case e1000_ich9lan:
+ toggle = 0x7FFFF033;
+@@ -890,10 +892,18 @@ static int e1000_intr_test(struct e1000_
+ u32 shared_int = 1;
+ u32 irq = adapter->pdev->irq;
+ int i;
++ int ret_val = 0;
++ int int_mode = E1000E_INT_MODE_LEGACY;
+
+ *data = 0;
+
+- /* NOTE: we don't test MSI interrupts here, yet */
++ /* NOTE: we don't test MSI/MSI-X interrupts here, yet */
++ if (adapter->int_mode == E1000E_INT_MODE_MSIX) {
++ int_mode = adapter->int_mode;
++ e1000e_reset_interrupt_capability(adapter);
++ adapter->int_mode = E1000E_INT_MODE_LEGACY;
++ e1000e_set_interrupt_capability(adapter);
++ }
+ /* Hook up test interrupt handler just for this test */
+ if (!request_irq(irq, &e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,
+ netdev)) {
+@@ -901,7 +911,8 @@ static int e1000_intr_test(struct e1000_
+ } else if (request_irq(irq, &e1000_test_intr, IRQF_SHARED,
+ netdev->name, netdev)) {
+ *data = 1;
+- return -1;
++ ret_val = -1;
++ goto out;
+ }
+ ndev_info(netdev, "testing %s interrupt\n",
+ (shared_int ? "shared" : "unshared"));
+@@ -981,7 +992,14 @@ static int e1000_intr_test(struct e1000_
+ /* Unhook test interrupt handler */
+ free_irq(irq, netdev);
+
+- return *data;
++out:
++ if (int_mode == E1000E_INT_MODE_MSIX) {
++ e1000e_reset_interrupt_capability(adapter);
++ adapter->int_mode = int_mode;
++ e1000e_set_interrupt_capability(adapter);
++ }
++
++ return ret_val;
+ }
+
+ static void e1000_free_desc_rings(struct e1000_adapter *adapter)
+@@ -1763,11 +1781,13 @@ static void e1000_led_blink_callback(uns
+ static int e1000_phys_id(struct net_device *netdev, u32 data)
+ {
+ struct e1000_adapter *adapter = netdev_priv(netdev);
++ struct e1000_hw *hw = &adapter->hw;
+
+ if (!data)
+ data = INT_MAX;
+
+- if (adapter->hw.phy.type == e1000_phy_ife) {
++ if ((hw->phy.type == e1000_phy_ife) ||
++ (hw->mac.type == e1000_82574)) {
+ if (!adapter->blink_timer.function) {
+ init_timer(&adapter->blink_timer);
+ adapter->blink_timer.function =
+@@ -1777,16 +1797,16 @@ static int e1000_phys_id(struct net_devi
+ mod_timer(&adapter->blink_timer, jiffies);
+ msleep_interruptible(data * 1000);
+ del_timer_sync(&adapter->blink_timer);
+- e1e_wphy(&adapter->hw,
+- IFE_PHY_SPECIAL_CONTROL_LED, 0);
++ if (hw->phy.type == e1000_phy_ife)
++ e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0);
+ } else {
+- e1000e_blink_led(&adapter->hw);
++ e1000e_blink_led(hw);
+ msleep_interruptible(data * 1000);
+ }
+
+- adapter->hw.mac.ops.led_off(&adapter->hw);
++ hw->mac.ops.led_off(hw);
+ clear_bit(E1000_LED_ON, &adapter->led_status);
+- adapter->hw.mac.ops.cleanup_led(&adapter->hw);
++ hw->mac.ops.cleanup_led(hw);
+
+ return 0;
+ }
+diff -urpN linux-source-2.6.26.orig/drivers/net/e1000e/hw.h linux-source-2.6.26/drivers/net/e1000e/hw.h
+--- linux-source-2.6.26.orig/drivers/net/e1000e/hw.h 2008-07-13 15:51:29.000000000 -0600
++++ linux-source-2.6.26/drivers/net/e1000e/hw.h 2009-06-19 17:25:39.000000000 -0600
+@@ -65,7 +65,11 @@ enum e1e_registers {
+ E1000_ICS = 0x000C8, /* Interrupt Cause Set - WO */
+ E1000_IMS = 0x000D0, /* Interrupt Mask Set - RW */
+ E1000_IMC = 0x000D8, /* Interrupt Mask Clear - WO */
++ E1000_EIAC_82574 = 0x000DC, /* Ext. Interrupt Auto Clear - RW */
+ E1000_IAM = 0x000E0, /* Interrupt Acknowledge Auto Mask */
++ E1000_IVAR = 0x000E4, /* Interrupt Vector Allocation - RW */
++ E1000_EITR_82574_BASE = 0x000E8, /* Interrupt Throttling - RW */
++#define E1000_EITR_82574(_n) (E1000_EITR_82574_BASE + (_n << 2))
+ E1000_RCTL = 0x00100, /* Rx Control - RW */
+ E1000_FCTTV = 0x00170, /* Flow Control Transmit Timer Value - RW */
+ E1000_TXCW = 0x00178, /* Tx Configuration Word - RW */
+@@ -332,6 +336,7 @@ enum e1e_registers {
+ #define E1000_DEV_ID_82573E 0x108B
+ #define E1000_DEV_ID_82573E_IAMT 0x108C
+ #define E1000_DEV_ID_82573L 0x109A
++#define E1000_DEV_ID_82574L 0x10D3
+
+ #define E1000_DEV_ID_80003ES2LAN_COPPER_DPT 0x1096
+ #define E1000_DEV_ID_80003ES2LAN_SERDES_DPT 0x1098
+@@ -357,12 +362,15 @@ enum e1e_registers {
+ #define E1000_DEV_ID_ICH10_R_BM_LF 0x10CD
+ #define E1000_DEV_ID_ICH10_R_BM_V 0x10CE
+
++#define E1000_REVISION_4 4
++
+ #define E1000_FUNC_1 1
+
+ enum e1000_mac_type {
+ e1000_82571,
+ e1000_82572,
+ e1000_82573,
++ e1000_82574,
+ e1000_80003es2lan,
+ e1000_ich8lan,
+ e1000_ich9lan,
+@@ -696,8 +704,7 @@ struct e1000_host_mng_command_info {
+
+ /* Function pointers and static data for the MAC. */
+ struct e1000_mac_operations {
+- u32 mng_mode_enab;
+-
++ bool (*check_mng_mode)(struct e1000_hw *);
+ s32 (*check_for_link)(struct e1000_hw *);
+ s32 (*cleanup_led)(struct e1000_hw *);
+ void (*clear_hw_cntrs)(struct e1000_hw *);
+diff -urpN linux-source-2.6.26.orig/drivers/net/e1000e/ich8lan.c linux-source-2.6.26/drivers/net/e1000e/ich8lan.c
+--- linux-source-2.6.26.orig/drivers/net/e1000e/ich8lan.c 2008-07-13 15:51:29.000000000 -0600
++++ linux-source-2.6.26/drivers/net/e1000e/ich8lan.c 2009-06-19 17:25:39.000000000 -0600
+@@ -417,6 +417,22 @@ static void e1000_release_swflag_ich8lan
+ }
+
+ /**
++ * e1000_check_mng_mode_ich8lan - Checks management mode
++ * @hw: pointer to the HW structure
++ *
++ * This checks if the adapter has manageability enabled.
++ * This is a function pointer entry point only called by read/write
++ * routines for the PHY and NVM parts.
++ **/
++static bool e1000_check_mng_mode_ich8lan(struct e1000_hw *hw)
++{
++ u32 fwsm = er32(FWSM);
++
++ return (fwsm & E1000_FWSM_MODE_MASK) ==
++ (E1000_ICH_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT);
++}
++
++/**
+ * e1000_check_reset_block_ich8lan - Check if PHY reset is blocked
+ * @hw: pointer to the HW structure
+ *
+@@ -2282,7 +2298,7 @@ static void e1000_clear_hw_cntrs_ich8lan
+ }
+
+ static struct e1000_mac_operations ich8_mac_ops = {
+- .mng_mode_enab = E1000_ICH_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT,
++ .check_mng_mode = e1000_check_mng_mode_ich8lan,
+ .check_for_link = e1000e_check_for_copper_link,
+ .cleanup_led = e1000_cleanup_led_ich8lan,
+ .clear_hw_cntrs = e1000_clear_hw_cntrs_ich8lan,
+diff -urpN linux-source-2.6.26.orig/drivers/net/e1000e/lib.c linux-source-2.6.26/drivers/net/e1000e/lib.c
+--- linux-source-2.6.26.orig/drivers/net/e1000e/lib.c 2008-07-13 15:51:29.000000000 -0600
++++ linux-source-2.6.26/drivers/net/e1000e/lib.c 2009-06-19 17:25:39.000000000 -0600
+@@ -2222,17 +2222,18 @@ static s32 e1000_mng_enable_host_if(stru
+ }
+
+ /**
+- * e1000e_check_mng_mode - check management mode
++ * e1000e_check_mng_mode_generic - check management mode
+ * @hw: pointer to the HW structure
+ *
+ * Reads the firmware semaphore register and returns true (>0) if
+ * manageability is enabled, else false (0).
+ **/
+-bool e1000e_check_mng_mode(struct e1000_hw *hw)
++bool e1000e_check_mng_mode_generic(struct e1000_hw *hw)
+ {
+ u32 fwsm = er32(FWSM);
+
+- return (fwsm & E1000_FWSM_MODE_MASK) == hw->mac.ops.mng_mode_enab;
++ return (fwsm & E1000_FWSM_MODE_MASK) ==
++ (E1000_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT);
+ }
+
+ /**
+diff -urpN linux-source-2.6.26.orig/drivers/net/e1000e/param.c linux-source-2.6.26/drivers/net/e1000e/param.c
+--- linux-source-2.6.26.orig/drivers/net/e1000e/param.c 2008-07-13 15:51:29.000000000 -0600
++++ linux-source-2.6.26/drivers/net/e1000e/param.c 2009-06-19 17:25:39.000000000 -0600
+@@ -113,6 +113,15 @@ E1000_PARAM(InterruptThrottleRate, "Inte
+ #define DEFAULT_ITR 3
+ #define MAX_ITR 100000
+ #define MIN_ITR 100
++/* IntMode (Interrupt Mode)
++ *
++ * Valid Range: 0 - 2
++ *
++ * Default Value: 2 (MSI-X)
++ */
++E1000_PARAM(IntMode, "Interrupt Mode");
++#define MAX_INTMODE 2
++#define MIN_INTMODE 0
+
+ /*
+ * Enable Smart Power Down of the PHY
+@@ -346,6 +355,24 @@ void __devinit e1000e_check_options(stru
+ adapter->itr = 20000;
+ }
+ }
++ { /* Interrupt Mode */
++ struct e1000_option opt = {
++ .type = range_option,
++ .name = "Interrupt Mode",
++ .err = "defaulting to 2 (MSI-X)",
++ .def = E1000E_INT_MODE_MSIX,
++ .arg = { .r = { .min = MIN_INTMODE,
++ .max = MAX_INTMODE } }
++ };
++
++ if (num_IntMode > bd) {
++ unsigned int int_mode = IntMode[bd];
++ e1000_validate_option(&int_mode, &opt, adapter);
++ adapter->int_mode = int_mode;
++ } else {
++ adapter->int_mode = opt.def;
++ }
++ }
+ { /* Smart Power Down */
+ const struct e1000_option opt = {
+ .type = enable_option,
+diff -urpN linux-source-2.6.26.orig/drivers/net/e1000e/phy.c linux-source-2.6.26/drivers/net/e1000e/phy.c
+--- linux-source-2.6.26.orig/drivers/net/e1000e/phy.c 2008-07-13 15:51:29.000000000 -0600
++++ linux-source-2.6.26/drivers/net/e1000e/phy.c 2009-06-19 17:25:39.000000000 -0600
+@@ -476,7 +476,9 @@ s32 e1000e_copper_link_setup_m88(struct
+ if (ret_val)
+ return ret_val;
+
+- if ((phy->type == e1000_phy_m88) && (phy->revision < 4)) {
++ if ((phy->type == e1000_phy_m88) &&
++ (phy->revision < E1000_REVISION_4) &&
++ (phy->id != BME1000_E_PHY_ID_R2)) {
+ /*
+ * Force TX_CLK in the Extended PHY Specific Control Register
+ * to 25MHz clock.
+@@ -504,6 +506,18 @@ s32 e1000e_copper_link_setup_m88(struct
+ return ret_val;
+ }
+
++ if ((phy->type == e1000_phy_bm) && (phy->id == BME1000_E_PHY_ID_R2)) {
++ /* Set PHY page 0, register 29 to 0x0003 */
++ ret_val = e1e_wphy(hw, 29, 0x0003);
++ if (ret_val)
++ return ret_val;
++
++ /* Set PHY page 0, register 30 to 0x0000 */
++ ret_val = e1e_wphy(hw, 30, 0x0000);
++ if (ret_val)
++ return ret_val;
++ }
++
+ /* Commit the changes. */
+ ret_val = e1000e_commit_phy(hw);
+ if (ret_val)
+@@ -1969,6 +1983,99 @@ out:
+ }
+
+ /**
++ * e1000e_read_phy_reg_bm2 - Read BM PHY register
++ * @hw: pointer to the HW structure
++ * @offset: register offset to be read
++ * @data: pointer to the read data
++ *
++ * Acquires semaphore, if necessary, then reads the PHY register at offset
++ * and storing the retrieved information in data. Release any acquired
++ * semaphores before exiting.
++ **/
++s32 e1000e_read_phy_reg_bm2(struct e1000_hw *hw, u32 offset, u16 *data)
++{
++ s32 ret_val;
++ u16 page = (u16)(offset >> IGP_PAGE_SHIFT);
++
++ /* Page 800 works differently than the rest so it has its own func */
++ if (page == BM_WUC_PAGE) {
++ ret_val = e1000_access_phy_wakeup_reg_bm(hw, offset, data,
++ true);
++ return ret_val;
++ }
++
++ ret_val = hw->phy.ops.acquire_phy(hw);
++ if (ret_val)
++ return ret_val;
++
++ hw->phy.addr = 1;
++
++ if (offset > MAX_PHY_MULTI_PAGE_REG) {
++
++ /* Page is shifted left, PHY expects (page x 32) */
++ ret_val = e1000e_write_phy_reg_mdic(hw, BM_PHY_PAGE_SELECT,
++ page);
++
++ if (ret_val) {
++ hw->phy.ops.release_phy(hw);
++ return ret_val;
++ }
++ }
++
++ ret_val = e1000e_read_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset,
++ data);
++ hw->phy.ops.release_phy(hw);
++
++ return ret_val;
++}
++
++/**
++ * e1000e_write_phy_reg_bm2 - Write BM PHY register
++ * @hw: pointer to the HW structure
++ * @offset: register offset to write to
++ * @data: data to write at register offset
++ *
++ * Acquires semaphore, if necessary, then writes the data to PHY register
++ * at the offset. Release any acquired semaphores before exiting.
++ **/
++s32 e1000e_write_phy_reg_bm2(struct e1000_hw *hw, u32 offset, u16 data)
++{
++ s32 ret_val;
++ u16 page = (u16)(offset >> IGP_PAGE_SHIFT);
++
++ /* Page 800 works differently than the rest so it has its own func */
++ if (page == BM_WUC_PAGE) {
++ ret_val = e1000_access_phy_wakeup_reg_bm(hw, offset, &data,
++ false);
++ return ret_val;
++ }
++
++ ret_val = hw->phy.ops.acquire_phy(hw);
++ if (ret_val)
++ return ret_val;
++
++ hw->phy.addr = 1;
++
++ if (offset > MAX_PHY_MULTI_PAGE_REG) {
++ /* Page is shifted left, PHY expects (page x 32) */
++ ret_val = e1000e_write_phy_reg_mdic(hw, BM_PHY_PAGE_SELECT,
++ page);
++
++ if (ret_val) {
++ hw->phy.ops.release_phy(hw);
++ return ret_val;
++ }
++ }
++
++ ret_val = e1000e_write_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset,
++ data);
++
++ hw->phy.ops.release_phy(hw);
++
++ return ret_val;
++}
++
++/**
+ * e1000_access_phy_wakeup_reg_bm - Read BM PHY wakeup register
+ * @hw: pointer to the HW structure
+ * @offset: register offset to be read or written
+--- linux-source-2.6.26.orig/drivers/net/e1000e/netdev.c 2009-06-19 17:25:12.000000000 -0600
++++ linux-source-2.6.26/drivers/net/e1000e/netdev.c 2009-06-19 17:28:47.000000000 -0600
+@@ -55,6 +55,7 @@ static const struct e1000_info *e1000_in
+ [board_82571] = &e1000_82571_info,
+ [board_82572] = &e1000_82572_info,
+ [board_82573] = &e1000_82573_info,
++ [board_82574] = &e1000_82574_info,
+ [board_80003es2lan] = &e1000_es2_info,
+ [board_ich8lan] = &e1000_ich8_info,
+ [board_ich9lan] = &e1000_ich9_info,
+@@ -1179,8 +1180,8 @@ static irqreturn_t e1000_intr(int irq, v
+ struct net_device *netdev = data;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+-
+ u32 rctl, icr = er32(ICR);
++
+ if (!icr)
+ return IRQ_NONE; /* Not our interrupt */
+
+@@ -1236,6 +1237,265 @@ static irqreturn_t e1000_intr(int irq, v
+ return IRQ_HANDLED;
+ }
+
++static irqreturn_t e1000_msix_other(int irq, void *data)
++{
++ struct net_device *netdev = data;
++ struct e1000_adapter *adapter = netdev_priv(netdev);
++ struct e1000_hw *hw = &adapter->hw;
++ u32 icr = er32(ICR);
++
++ if (!(icr & E1000_ICR_INT_ASSERTED)) {
++ ew32(IMS, E1000_IMS_OTHER);
++ return IRQ_NONE;
++ }
++
++ if (icr & adapter->eiac_mask)
++ ew32(ICS, (icr & adapter->eiac_mask));
++
++ if (icr & E1000_ICR_OTHER) {
++ if (!(icr & E1000_ICR_LSC))
++ goto no_link_interrupt;
++ hw->mac.get_link_status = 1;
++ /* guard against interrupt when we're going down */
++ if (!test_bit(__E1000_DOWN, &adapter->state))
++ mod_timer(&adapter->watchdog_timer, jiffies + 1);
++ }
++
++no_link_interrupt:
++ ew32(IMS, E1000_IMS_LSC | E1000_IMS_OTHER);
++
++ return IRQ_HANDLED;
++}
++
++
++static irqreturn_t e1000_intr_msix_tx(int irq, void *data)
++{
++ struct net_device *netdev = data;
++ struct e1000_adapter *adapter = netdev_priv(netdev);
++ struct e1000_hw *hw = &adapter->hw;
++ struct e1000_ring *tx_ring = adapter->tx_ring;
++
++
++ adapter->total_tx_bytes = 0;
++ adapter->total_tx_packets = 0;
++
++ if (!e1000_clean_tx_irq(adapter))
++ /* Ring was not completely cleaned, so fire another interrupt */
++ ew32(ICS, tx_ring->ims_val);
++
++ return IRQ_HANDLED;
++}
++
++static irqreturn_t e1000_intr_msix_rx(int irq, void *data)
++{
++ struct net_device *netdev = data;
++ struct e1000_adapter *adapter = netdev_priv(netdev);
++
++ /* Write the ITR value calculated at the end of the
++ * previous interrupt.
++ */
++ if (adapter->rx_ring->set_itr) {
++ writel(1000000000 / (adapter->rx_ring->itr_val * 256),
++ adapter->hw.hw_addr + adapter->rx_ring->itr_register);
++ adapter->rx_ring->set_itr = 0;
++ }
++
++ if (netif_rx_schedule_prep(netdev, &adapter->napi)) {
++ adapter->total_rx_bytes = 0;
++ adapter->total_rx_packets = 0;
++ __netif_rx_schedule(netdev, &adapter->napi);
++ }
++ return IRQ_HANDLED;
++}
++
++/**
++ * e1000_configure_msix - Configure MSI-X hardware
++ *
++ * e1000_configure_msix sets up the hardware to properly
++ * generate MSI-X interrupts.
++ **/
++static void e1000_configure_msix(struct e1000_adapter *adapter)
++{
++ struct e1000_hw *hw = &adapter->hw;
++ struct e1000_ring *rx_ring = adapter->rx_ring;
++ struct e1000_ring *tx_ring = adapter->tx_ring;
++ int vector = 0;
++ u32 ctrl_ext, ivar = 0;
++
++ adapter->eiac_mask = 0;
++
++ /* Workaround issue with spurious interrupts on 82574 in MSI-X mode */
++ if (hw->mac.type == e1000_82574) {
++ u32 rfctl = er32(RFCTL);
++ rfctl |= E1000_RFCTL_ACK_DIS;
++ ew32(RFCTL, rfctl);
++ }
++
++#define E1000_IVAR_INT_ALLOC_VALID 0x8
++ /* Configure Rx vector */
++ rx_ring->ims_val = E1000_IMS_RXQ0;
++ adapter->eiac_mask |= rx_ring->ims_val;
++ if (rx_ring->itr_val)
++ writel(1000000000 / (rx_ring->itr_val * 256),
++ hw->hw_addr + rx_ring->itr_register);
++ else
++ writel(1, hw->hw_addr + rx_ring->itr_register);
++ ivar = E1000_IVAR_INT_ALLOC_VALID | vector;
++
++ /* Configure Tx vector */
++ tx_ring->ims_val = E1000_IMS_TXQ0;
++ vector++;
++ if (tx_ring->itr_val)
++ writel(1000000000 / (tx_ring->itr_val * 256),
++ hw->hw_addr + tx_ring->itr_register);
++ else
++ writel(1, hw->hw_addr + tx_ring->itr_register);
++ adapter->eiac_mask |= tx_ring->ims_val;
++ ivar |= ((E1000_IVAR_INT_ALLOC_VALID | vector) << 8);
++
++ /* set vector for Other Causes, e.g. link changes */
++ vector++;
++ ivar |= ((E1000_IVAR_INT_ALLOC_VALID | vector) << 16);
++ if (rx_ring->itr_val)
++ writel(1000000000 / (rx_ring->itr_val * 256),
++ hw->hw_addr + E1000_EITR_82574(vector));
++ else
++ writel(1, hw->hw_addr + E1000_EITR_82574(vector));
++
++ /* Cause Tx interrupts on every write back */
++ ivar |= (1 << 31);
++
++ ew32(IVAR, ivar);
++
++ /* enable MSI-X PBA support */
++ ctrl_ext = er32(CTRL_EXT);
++ ctrl_ext |= E1000_CTRL_EXT_PBA_CLR;
++
++ /* Auto-Mask Other interrupts upon ICR read */
++#define E1000_EIAC_MASK_82574 0x01F00000
++ ew32(IAM, ~E1000_EIAC_MASK_82574 | E1000_IMS_OTHER);
++ ctrl_ext |= E1000_CTRL_EXT_EIAME;
++ ew32(CTRL_EXT, ctrl_ext);
++ e1e_flush();
++}
++
++void e1000e_reset_interrupt_capability(struct e1000_adapter *adapter)
++{
++ if (adapter->msix_entries) {
++ pci_disable_msix(adapter->pdev);
++ kfree(adapter->msix_entries);
++ adapter->msix_entries = NULL;
++ } else if (adapter->flags & FLAG_MSI_ENABLED) {
++ pci_disable_msi(adapter->pdev);
++ adapter->flags &= ~FLAG_MSI_ENABLED;
++ }
++
++ return;
++}
++
++/**
++ * e1000e_set_interrupt_capability - set MSI or MSI-X if supported
++ *
++ * Attempt to configure interrupts using the best available
++ * capabilities of the hardware and kernel.
++ **/
++void e1000e_set_interrupt_capability(struct e1000_adapter *adapter)
++{
++ int err;
++ int numvecs, i;
++ struct net_device *netdev = adapter->netdev;
++
++ switch (adapter->int_mode) {
++ case E1000E_INT_MODE_MSIX:
++ if (adapter->flags & FLAG_HAS_MSIX) {
++ numvecs = 3; /* RxQ0, TxQ0 and other */
++ adapter->msix_entries = kcalloc(numvecs,
++ sizeof(struct msix_entry),
++ GFP_KERNEL);
++ if (adapter->msix_entries) {
++ for (i = 0; i < numvecs; i++)
++ adapter->msix_entries[i].entry = i;
++
++ err = pci_enable_msix(adapter->pdev,
++ adapter->msix_entries,
++ numvecs);
++ if (err == 0)
++ return;
++ }
++ /* MSI-X failed, so fall through and try MSI */
++ ndev_err(netdev,
++ "Failed to initialize MSI-X interrupts. "
++ "Falling back to MSI interrupts.\n");
++ e1000e_reset_interrupt_capability(adapter);
++ }
++ adapter->int_mode = E1000E_INT_MODE_MSI;
++ /* Fall through */
++ case E1000E_INT_MODE_MSI:
++ if (!pci_enable_msi(adapter->pdev)) {
++ adapter->flags |= FLAG_MSI_ENABLED;
++ } else {
++ adapter->int_mode = E1000E_INT_MODE_LEGACY;
++ ndev_err(netdev,
++ "Failed to initialize MSI interrupts. "
++ "Falling back to legacy interrupts.\n");
++ }
++ /* Fall through */
++ case E1000E_INT_MODE_LEGACY:
++ /* Don't do anything; this is the system default */
++ break;
++ }
++
++ return;
++}
++
++/**
++ * e1000_request_msix - Initialize MSI-X interrupts
++ *
++ * e1000_request_msix allocates MSI-X vectors and requests interrupts from the
++ * kernel.
++ **/
++static int e1000_request_msix(struct e1000_adapter *adapter)
++{
++ struct net_device *netdev = adapter->netdev;
++ int err = 0, vector = 0;
++
++ if (strlen(netdev->name) < (IFNAMSIZ - 5))
++ sprintf(adapter->rx_ring->name, "%s-rx0", netdev->name);
++ else
++ memcpy(adapter->rx_ring->name, netdev->name, IFNAMSIZ);
++ err = request_irq(adapter->msix_entries[vector].vector,
++ &e1000_intr_msix_rx, 0, adapter->rx_ring->name,
++ netdev);
++ if (err)
++ goto out;
++ adapter->rx_ring->itr_register = E1000_EITR_82574(vector);
++ adapter->rx_ring->itr_val = adapter->itr;
++ vector++;
++
++ if (strlen(netdev->name) < (IFNAMSIZ - 5))
++ sprintf(adapter->tx_ring->name, "%s-tx0", netdev->name);
++ else
++ memcpy(adapter->tx_ring->name, netdev->name, IFNAMSIZ);
++ err = request_irq(adapter->msix_entries[vector].vector,
++ &e1000_intr_msix_tx, 0, adapter->tx_ring->name,
++ netdev);
++ if (err)
++ goto out;
++ adapter->tx_ring->itr_register = E1000_EITR_82574(vector);
++ adapter->tx_ring->itr_val = adapter->itr;
++ vector++;
++
++ err = request_irq(adapter->msix_entries[vector].vector,
++ &e1000_msix_other, 0, netdev->name, netdev);
++ if (err)
++ goto out;
++
++ e1000_configure_msix(adapter);
++ return 0;
++out:
++ return err;
++}
++
+ /**
+ * e1000_request_irq - initialize interrupts
+ *
+@@ -1245,29 +1505,33 @@ static irqreturn_t e1000_intr(int irq, v
+ static int e1000_request_irq(struct e1000_adapter *adapter)
+ {
+ struct net_device *netdev = adapter->netdev;
+- int irq_flags = IRQF_SHARED;
+ int err;
+
+- if (!(adapter->flags & FLAG_MSI_TEST_FAILED)) {
+- err = pci_enable_msi(adapter->pdev);
+- if (!err) {
+- adapter->flags |= FLAG_MSI_ENABLED;
+- irq_flags = 0;
+- }
++ if (adapter->msix_entries) {
++ err = e1000_request_msix(adapter);
++ if (!err)
++ return err;
++ /* fall back to MSI */
++ e1000e_reset_interrupt_capability(adapter);
++ adapter->int_mode = E1000E_INT_MODE_MSI;
++ e1000e_set_interrupt_capability(adapter);
+ }
++ if (adapter->flags & FLAG_MSI_ENABLED) {
++ err = request_irq(adapter->pdev->irq, &e1000_intr_msi, 0,
++ netdev->name, netdev);
++ if (!err)
++ return err;
+
+- err = request_irq(adapter->pdev->irq,
+- ((adapter->flags & FLAG_MSI_ENABLED) ?
+- &e1000_intr_msi : &e1000_intr),
+- irq_flags, netdev->name, netdev);
+- if (err) {
+- if (adapter->flags & FLAG_MSI_ENABLED) {
+- pci_disable_msi(adapter->pdev);
+- adapter->flags &= ~FLAG_MSI_ENABLED;
+- }
++ /* fall back to legacy interrupt */
++ e1000e_reset_interrupt_capability(adapter);
++ adapter->int_mode = E1000E_INT_MODE_LEGACY;
++ }
++
++ err = request_irq(adapter->pdev->irq, &e1000_intr, IRQF_SHARED,
++ netdev->name, netdev);
++ if (err)
+ ndev_err(netdev,
+ "Unable to allocate interrupt, Error: %d\n", err);
+- }
+
+ return err;
+ }
+@@ -1276,11 +1540,21 @@ static void e1000_free_irq(struct e1000_
+ {
+ struct net_device *netdev = adapter->netdev;
+
+- free_irq(adapter->pdev->irq, netdev);
+- if (adapter->flags & FLAG_MSI_ENABLED) {
+- pci_disable_msi(adapter->pdev);
+- adapter->flags &= ~FLAG_MSI_ENABLED;
++ if (adapter->msix_entries) {
++ int vector = 0;
++
++ free_irq(adapter->msix_entries[vector].vector, netdev);
++ vector++;
++
++ free_irq(adapter->msix_entries[vector].vector, netdev);
++ vector++;
++
++ /* Other Causes interrupt vector */
++ free_irq(adapter->msix_entries[vector].vector, netdev);
++ return;
+ }
++
++ free_irq(adapter->pdev->irq, netdev);
+ }
+
+ /**
+@@ -1291,6 +1565,8 @@ static void e1000_irq_disable(struct e10
+ struct e1000_hw *hw = &adapter->hw;
+
+ ew32(IMC, ~0);
++ if (adapter->msix_entries)
++ ew32(EIAC_82574, 0);
+ e1e_flush();
+ synchronize_irq(adapter->pdev->irq);
+ }
+@@ -1302,7 +1578,12 @@ static void e1000_irq_enable(struct e100
+ {
+ struct e1000_hw *hw = &adapter->hw;
+
+- ew32(IMS, IMS_ENABLE_MASK);
++ if (adapter->msix_entries) {
++ ew32(EIAC_82574, adapter->eiac_mask & E1000_EIAC_MASK_82574);
++ ew32(IMS, adapter->eiac_mask | E1000_IMS_OTHER | E1000_IMS_LSC);
++ } else {
++ ew32(IMS, IMS_ENABLE_MASK);
++ }
+ e1e_flush();
+ }
+
+@@ -1554,9 +1835,8 @@ void e1000e_free_rx_resources(struct e10
+ * traffic pattern. Constants in this function were computed
+ * based on theoretical maximum wire speed and thresholds were set based
+ * on testing data as well as attempting to minimize response time
+- * while increasing bulk throughput.
+- * this functionality is controlled by the InterruptThrottleRate module
+- * parameter (see e1000_param.c)
++ * while increasing bulk throughput. This functionality is controlled
++ * by the InterruptThrottleRate module parameter.
+ **/
+ static unsigned int e1000_update_itr(struct e1000_adapter *adapter,
+ u16 itr_setting, int packets,
+@@ -1664,11 +1944,39 @@ set_itr_now:
+ min(adapter->itr + (new_itr >> 2), new_itr) :
+ new_itr;
+ adapter->itr = new_itr;
+- ew32(ITR, 1000000000 / (new_itr * 256));
++ adapter->rx_ring->itr_val = new_itr;
++ if (adapter->msix_entries)
++ adapter->rx_ring->set_itr = 1;
++ else
++ ew32(ITR, 1000000000 / (new_itr * 256));
+ }
+ }
+
+ /**
++ * e1000_alloc_queues - Allocate memory for all rings
++ * @adapter: board private structure to initialize
++ **/
++static int __devinit e1000_alloc_queues(struct e1000_adapter *adapter)
++{
++ struct net_device *netdev = adapter->netdev;
++
++ adapter->tx_ring = kzalloc(sizeof(struct e1000_ring), GFP_KERNEL);
++ if (!adapter->tx_ring)
++ goto err;
++
++ adapter->rx_ring = kzalloc(sizeof(struct e1000_ring), GFP_KERNEL);
++ if (!adapter->rx_ring)
++ goto err;
++
++ return 0;
++err:
++ ndev_err(netdev, "Unable to allocate memory for queues\n");
++ kfree(adapter->rx_ring);
++ kfree(adapter->tx_ring);
++ return -ENOMEM;
++}
++
++/**
+ * e1000_clean - NAPI Rx polling callback
+ * @napi: struct associated with this polling callback
+ * @budget: amount of packets driver is allowed to process this poll
+@@ -1676,12 +1984,17 @@ set_itr_now:
+ static int e1000_clean(struct napi_struct *napi, int budget)
+ {
+ struct e1000_adapter *adapter = container_of(napi, struct e1000_adapter, napi);
++ struct e1000_hw *hw = &adapter->hw;
+ struct net_device *poll_dev = adapter->netdev;
+ int tx_cleaned = 0, work_done = 0;
+
+ /* Must NOT use netdev_priv macro here. */
+ adapter = poll_dev->priv;
+
++ if (adapter->msix_entries &&
++ !(adapter->rx_ring->ims_val & adapter->tx_ring->ims_val))
++ goto clean_rx;
++
+ /*
+ * e1000_clean is called per-cpu. This lock protects
+ * tx_ring from being cleaned by multiple cpus
+@@ -1693,6 +2006,7 @@ static int e1000_clean(struct napi_struc
+ spin_unlock(&adapter->tx_queue_lock);
+ }
+
++clean_rx:
+ adapter->clean_rx(adapter, &work_done, budget);
+
+ if (tx_cleaned)
+@@ -1703,7 +2017,10 @@ static int e1000_clean(struct napi_struc
+ if (adapter->itr_setting & 3)
+ e1000_set_itr(adapter);
+ netif_rx_complete(poll_dev, napi);
+- e1000_irq_enable(adapter);
++ if (adapter->msix_entries)
++ ew32(IMS, adapter->rx_ring->ims_val);
++ else
++ e1000_irq_enable(adapter);
+ }
+
+ return work_done;
+@@ -2499,6 +2816,8 @@ int e1000e_up(struct e1000_adapter *adap
+ clear_bit(__E1000_DOWN, &adapter->state);
+
+ napi_enable(&adapter->napi);
++ if (adapter->msix_entries)
++ e1000_configure_msix(adapter);
+ e1000_irq_enable(adapter);
+
+ /* fire a link change interrupt to start the watchdog */
+@@ -2582,13 +2901,10 @@ static int __devinit e1000_sw_init(struc
+ adapter->max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
+ adapter->min_frame_size = ETH_ZLEN + ETH_FCS_LEN;
+
+- adapter->tx_ring = kzalloc(sizeof(struct e1000_ring), GFP_KERNEL);
+- if (!adapter->tx_ring)
+- goto err;
++ e1000e_set_interrupt_capability(adapter);
+
+- adapter->rx_ring = kzalloc(sizeof(struct e1000_ring), GFP_KERNEL);
+- if (!adapter->rx_ring)
+- goto err;
++ if (e1000_alloc_queues(adapter))
++ return -ENOMEM;
+
+ spin_lock_init(&adapter->tx_queue_lock);
+
+@@ -2599,12 +2915,6 @@ static int __devinit e1000_sw_init(struc
+
+ set_bit(__E1000_DOWN, &adapter->state);
+ return 0;
+-
+-err:
+- ndev_err(netdev, "Unable to allocate memory for queues\n");
+- kfree(adapter->rx_ring);
+- kfree(adapter->tx_ring);
+- return -ENOMEM;
+ }
+
+ /**
+@@ -2646,6 +2956,7 @@ static int e1000_test_msi_interrupt(stru
+
+ /* free the real vector and request a test handler */
+ e1000_free_irq(adapter);
++ e1000e_reset_interrupt_capability(adapter);
+
+ /* Assume that the test fails, if it succeeds then the test
+ * MSI irq handler will unset this flag */
+@@ -2676,6 +2987,7 @@ static int e1000_test_msi_interrupt(stru
+ rmb();
+
+ if (adapter->flags & FLAG_MSI_TEST_FAILED) {
++ adapter->int_mode = E1000E_INT_MODE_LEGACY;
+ err = -EIO;
+ ndev_info(netdev, "MSI interrupt test failed!\n");
+ }
+@@ -2689,7 +3001,7 @@ static int e1000_test_msi_interrupt(stru
+ /* okay so the test worked, restore settings */
+ ndev_dbg(netdev, "%s: MSI interrupt test succeeded!\n", netdev->name);
+ msi_test_failed:
+- /* restore the original vector, even if it failed */
++ e1000e_set_interrupt_capability(adapter);
+ e1000_request_irq(adapter);
+ return err;
+ }
+@@ -2802,7 +3114,7 @@ static int e1000_open(struct net_device
+ * ignore e1000e MSI messages, which means we need to test our MSI
+ * interrupt now
+ */
+- {
++ if (adapter->int_mode != E1000E_INT_MODE_LEGACY) {
+ err = e1000_test_msi(adapter);
+ if (err) {
+ ndev_err(netdev, "Interrupt allocation failed\n");
+@@ -2993,7 +3305,8 @@ void e1000e_update_stats(struct e1000_ad
+
+ adapter->stats.algnerrc += er32(ALGNERRC);
+ adapter->stats.rxerrc += er32(RXERRC);
+- adapter->stats.tncrs += er32(TNCRS);
++ if (hw->mac.type != e1000_82574)
++ adapter->stats.tncrs += er32(TNCRS);
+ adapter->stats.cexterr += er32(CEXTERR);
+ adapter->stats.tsctc += er32(TSCTC);
+ adapter->stats.tsctfc += er32(TSCTFC);
+@@ -3325,7 +3638,10 @@ link_up:
+ }
+
+ /* Cause software interrupt to ensure Rx ring is cleaned */
+- ew32(ICS, E1000_ICS_RXDMT0);
++ if (adapter->msix_entries)
++ ew32(ICS, adapter->rx_ring->ims_val);
++ else
++ ew32(ICS, E1000_ICS_RXDMT0);
+
+ /* Force detection of hung controller every watchdog period */
+ adapter->detect_tx_hung = 1;
+@@ -4043,6 +4359,7 @@ static int e1000_suspend(struct pci_dev
+ e1000e_down(adapter);
+ e1000_free_irq(adapter);
+ }
++ e1000e_reset_interrupt_capability(adapter);
+
+ retval = pci_save_state(pdev);
+ if (retval)
+@@ -4168,6 +4485,7 @@ static int e1000_resume(struct pci_dev *
+ pci_enable_wake(pdev, PCI_D3hot, 0);
+ pci_enable_wake(pdev, PCI_D3cold, 0);
+
++ e1000e_set_interrupt_capability(adapter);
+ if (netif_running(netdev)) {
+ err = e1000_request_irq(adapter);
+ if (err)
+@@ -4456,6 +4774,8 @@ static int __devinit e1000_probe(struct
+
+ adapter->bd_number = cards_found++;
+
++ e1000e_check_options(adapter);
++
+ /* setup adapter struct */
+ err = e1000_sw_init(adapter);
+ if (err)
+@@ -4557,8 +4877,6 @@ static int __devinit e1000_probe(struct
+ INIT_WORK(&adapter->reset_task, e1000_reset_task);
+ INIT_WORK(&adapter->watchdog_task, e1000_watchdog_task);
+
+- e1000e_check_options(adapter);
+-
+ /* Initialize link parameters. User can change them with ethtool */
+ adapter->hw.mac.autoneg = 1;
+ adapter->fc_autoneg = 1;
+@@ -4688,6 +5006,7 @@ static void __devexit e1000_remove(struc
+ if (!e1000_check_reset_block(&adapter->hw))
+ e1000_phy_hw_reset(&adapter->hw);
+
++ e1000e_reset_interrupt_capability(adapter);
+ kfree(adapter->tx_ring);
+ kfree(adapter->rx_ring);
+
+@@ -4728,6 +5047,8 @@ static struct pci_device_id e1000_pci_tb
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82573E_IAMT), board_82573 },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82573L), board_82573 },
+
++ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82574L), board_82574 },
++
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_80003ES2LAN_COPPER_DPT),
+ board_80003es2lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_80003ES2LAN_COPPER_SPT),
Added: dists/lenny/linux-2.6/debian/patches/features/all/e1000e-test-for-unusable-MSI-support.patch
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ dists/lenny/linux-2.6/debian/patches/features/all/e1000e-test-for-unusable-MSI-support.patch Tue Jun 30 05:03:37 2009 (r13856)
@@ -0,0 +1,250 @@
+commit f8d59f7826aa73c5e7682fbed6db38020635d466
+Author: Bruce Allan <bruce.w.allan at intel.com>
+Date: Fri Aug 8 18:36:11 2008 -0700
+
+ e1000e: test for unusable MSI support
+
+ Some systems do not like 82571/2 use of 16-bit MSI messages and some
+ other systems claim to support MSI, but neither really works. Setup a
+ test MSI handler to detect whether or not MSI is working properly, and
+ if not, fallback to legacy INTx interrupts.
+
+ Signed-off-by: Bruce Allan <bruce.w.allan at intel.com>
+ Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher at intel.com>
+ Signed-off-by: Jeff Garzik <jgarzik at redhat.com>
+
+Backported to Debian's 2.6.26 by dann frazier <dannf at debian.org>
+
+diff -urpN linux-source-2.6.26.orig/drivers/net/e1000e/defines.h linux-source-2.6.26/drivers/net/e1000e/defines.h
+--- linux-source-2.6.26.orig/drivers/net/e1000e/defines.h 2008-07-13 15:51:29.000000000 -0600
++++ linux-source-2.6.26/drivers/net/e1000e/defines.h 2009-06-19 16:54:12.000000000 -0600
+@@ -389,7 +389,7 @@
+
+ /* Interrupt Cause Set */
+ #define E1000_ICS_LSC E1000_ICR_LSC /* Link Status Change */
+-#define E1000_ICS_RXDMT0 E1000_ICR_RXDMT0 /* rx desc min. threshold */
++#define E1000_ICS_RXSEQ E1000_ICR_RXSEQ /* Rx sequence error */
+ #define E1000_ICS_RXDMT0 E1000_ICR_RXDMT0 /* Rx desc min. threshold */
+
+ /* Transmit Descriptor Control */
+diff -urpN linux-source-2.6.26.orig/drivers/net/e1000e/e1000.h linux-source-2.6.26/drivers/net/e1000e/e1000.h
+--- linux-source-2.6.26.orig/drivers/net/e1000e/e1000.h 2008-07-13 15:51:29.000000000 -0600
++++ linux-source-2.6.26/drivers/net/e1000e/e1000.h 2009-06-19 16:54:12.000000000 -0600
+@@ -325,6 +325,7 @@ struct e1000_info {
+ #define FLAG_RX_CSUM_ENABLED (1 << 28)
+ #define FLAG_TSO_FORCE (1 << 29)
+ #define FLAG_RX_RESTART_NOW (1 << 30)
++#define FLAG_MSI_TEST_FAILED (1 << 31)
+
+ #define E1000_RX_DESC_PS(R, i) \
+ (&(((union e1000_rx_desc_packet_split *)((R).desc))[i]))
+--- linux-source-2.6.26.orig/drivers/net/e1000e/netdev.c 2008-07-13 15:51:29.000000000 -0600
++++ linux-source-2.6.26/drivers/net/e1000e/netdev.c 2009-06-19 17:21:48.000000000 -0600
+@@ -1236,28 +1236,37 @@ static irqreturn_t e1000_intr(int irq, v
+ return IRQ_HANDLED;
+ }
+
++/**
++ * e1000_request_irq - initialize interrupts
++ *
++ * Attempts to configure interrupts using the best available
++ * capabilities of the hardware and kernel.
++ **/
+ static int e1000_request_irq(struct e1000_adapter *adapter)
+ {
+ struct net_device *netdev = adapter->netdev;
+- irq_handler_t handler = e1000_intr;
+ int irq_flags = IRQF_SHARED;
+ int err;
+
+- if (!pci_enable_msi(adapter->pdev)) {
+- adapter->flags |= FLAG_MSI_ENABLED;
+- handler = e1000_intr_msi;
+- irq_flags = 0;
++ if (!(adapter->flags & FLAG_MSI_TEST_FAILED)) {
++ err = pci_enable_msi(adapter->pdev);
++ if (!err) {
++ adapter->flags |= FLAG_MSI_ENABLED;
++ irq_flags = 0;
++ }
+ }
+
+- err = request_irq(adapter->pdev->irq, handler, irq_flags, netdev->name,
+- netdev);
++ err = request_irq(adapter->pdev->irq,
++ ((adapter->flags & FLAG_MSI_ENABLED) ?
++ &e1000_intr_msi : &e1000_intr),
++ irq_flags, netdev->name, netdev);
+ if (err) {
+- ndev_err(netdev,
+- "Unable to allocate %s interrupt (return: %d)\n",
+- adapter->flags & FLAG_MSI_ENABLED ? "MSI":"INTx",
+- err);
+- if (adapter->flags & FLAG_MSI_ENABLED)
++ if (adapter->flags & FLAG_MSI_ENABLED) {
+ pci_disable_msi(adapter->pdev);
++ adapter->flags &= ~FLAG_MSI_ENABLED;
++ }
++ ndev_err(netdev,
++ "Unable to allocate interrupt, Error: %d\n", err);
+ }
+
+ return err;
+@@ -2599,6 +2608,137 @@ err:
+ }
+
+ /**
++ * e1000_intr_msi_test - Interrupt Handler
++ * @irq: interrupt number
++ * @data: pointer to a network interface device structure
++ **/
++static irqreturn_t e1000_intr_msi_test(int irq, void *data)
++{
++ struct net_device *netdev = data;
++ struct e1000_adapter *adapter = netdev_priv(netdev);
++ struct e1000_hw *hw = &adapter->hw;
++ u32 icr = er32(ICR);
++
++ ndev_dbg(netdev, "%s: icr is %08X\n", netdev->name, icr);
++ if (icr & E1000_ICR_RXSEQ) {
++ adapter->flags &= ~FLAG_MSI_TEST_FAILED;
++ wmb();
++ }
++
++ return IRQ_HANDLED;
++}
++
++/**
++ * e1000_test_msi_interrupt - Returns 0 for successful test
++ * @adapter: board private struct
++ *
++ * code flow taken from tg3.c
++ **/
++static int e1000_test_msi_interrupt(struct e1000_adapter *adapter)
++{
++ struct net_device *netdev = adapter->netdev;
++ struct e1000_hw *hw = &adapter->hw;
++ int err;
++
++ /* poll_enable hasn't been called yet, so don't need disable */
++ /* clear any pending events */
++ er32(ICR);
++
++ /* free the real vector and request a test handler */
++ e1000_free_irq(adapter);
++
++ /* Assume that the test fails, if it succeeds then the test
++ * MSI irq handler will unset this flag */
++ adapter->flags |= FLAG_MSI_TEST_FAILED;
++
++ err = pci_enable_msi(adapter->pdev);
++ if (err)
++ goto msi_test_failed;
++
++ err = request_irq(adapter->pdev->irq, &e1000_intr_msi_test, 0,
++ netdev->name, netdev);
++ if (err) {
++ pci_disable_msi(adapter->pdev);
++ goto msi_test_failed;
++ }
++
++ wmb();
++
++ e1000_irq_enable(adapter);
++
++ /* fire an unusual interrupt on the test handler */
++ ew32(ICS, E1000_ICS_RXSEQ);
++ e1e_flush();
++ msleep(50);
++
++ e1000_irq_disable(adapter);
++
++ rmb();
++
++ if (adapter->flags & FLAG_MSI_TEST_FAILED) {
++ err = -EIO;
++ ndev_info(netdev, "MSI interrupt test failed!\n");
++ }
++
++ free_irq(adapter->pdev->irq, netdev);
++ pci_disable_msi(adapter->pdev);
++
++ if (err == -EIO)
++ goto msi_test_failed;
++
++ /* okay so the test worked, restore settings */
++ ndev_dbg(netdev, "%s: MSI interrupt test succeeded!\n", netdev->name);
++msi_test_failed:
++ /* restore the original vector, even if it failed */
++ e1000_request_irq(adapter);
++ return err;
++}
++
++/**
++ * e1000_test_msi - Returns 0 if MSI test succeeds or INTx mode is restored
++ * @adapter: board private struct
++ *
++ * code flow taken from tg3.c, called with e1000 interrupts disabled.
++ **/
++static int e1000_test_msi(struct e1000_adapter *adapter)
++{
++ int err;
++ u16 pci_cmd;
++ struct net_device *netdev = adapter->netdev;
++
++ if (!(adapter->flags & FLAG_MSI_ENABLED))
++ return 0;
++
++ /* disable SERR in case the MSI write causes a master abort */
++ pci_read_config_word(adapter->pdev, PCI_COMMAND, &pci_cmd);
++ pci_write_config_word(adapter->pdev, PCI_COMMAND,
++ pci_cmd & ~PCI_COMMAND_SERR);
++
++ err = e1000_test_msi_interrupt(adapter);
++
++ /* restore previous setting of command word */
++ pci_write_config_word(adapter->pdev, PCI_COMMAND, pci_cmd);
++
++ /* success ! */
++ if (!err)
++ return 0;
++
++ /* EIO means MSI test failed */
++ if (err != -EIO)
++ return err;
++
++ /* back to INTx mode */
++ ndev_warn(netdev,
++ "MSI interrupt test failed, using legacy interrupt.\n");
++
++ e1000_free_irq(adapter);
++
++ err = e1000_request_irq(adapter);
++
++ return err;
++}
++
++/**
+ * e1000_open - Called when a network interface is made active
+ * @netdev: network interface device structure
+ *
+@@ -2657,6 +2797,19 @@ static int e1000_open(struct net_device
+ if (err)
+ goto err_req_irq;
+
++ /*
++ * Work around PCIe errata with MSI interrupts causing some chipsets to
++ * ignore e1000e MSI messages, which means we need to test our MSI
++ * interrupt now
++ */
++ {
++ err = e1000_test_msi(adapter);
++ if (err) {
++ ndev_err(netdev, "Interrupt allocation failed\n");
++ goto err_req_irq;
++ }
++ }
++
+ /* From here on the code is the same as e1000e_up() */
+ clear_bit(__E1000_DOWN, &adapter->state);
+
Modified: dists/lenny/linux-2.6/debian/patches/series/18
==============================================================================
--- dists/lenny/linux-2.6/debian/patches/series/18 Mon Jun 29 18:04:19 2009 (r13855)
+++ dists/lenny/linux-2.6/debian/patches/series/18 Tue Jun 30 05:03:37 2009 (r13856)
@@ -1,3 +1,5 @@
+ bugfix/all/rtc-ds1286.patch
+ bugfix/all/rtc-ds1286-include.patch
+ bugfix/mips/rtc-use-platform.patch
++ features/all/e1000e-test-for-unusable-MSI-support.patch
++ features/all/e1000e-add-support-for-82574l.patch
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