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Commit 2d9498f3 authored by David Graham's avatar David Graham Committed by Jeff Garzik
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e1000e: Fix HW Error on es2lan, ARP capture issue by BMC 

Several components to this complex fix. The es2lan cards occasionally
gave a "HW Error" especially when forcing speed. Some users also
reported that the BMC stole ARP packets.

The fixes include setting the proper SW_FW bits to tell the BMC
that we're active and not do any un-initialization at all, so the
setup routine is largely changed.
Signed-off-by: default avatarDavid Graham <david.graham@intel.com>
Signed-off-by: default avatarAuke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
parent de5b3077
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Showing with 137 additions and 66 deletions
drivers/net/e1000e/defines.h
View file @ 2d9498f3
......@@ -184,6 +184,7 @@
#define E1000_SWFW_EEP_SM 0x1
#define E1000_SWFW_PHY0_SM 0x2
#define E1000_SWFW_PHY1_SM 0x4
#define E1000_SWFW_CSR_SM 0x8
/* Device Control */
#define E1000_CTRL_FD 0x00000001 /* Full duplex.0=half; 1=full */
......
drivers/net/e1000e/e1000.h
View file @ 2d9498f3
......@@ -449,6 +449,8 @@ extern s32 e1000e_read_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 *data);
extern s32 e1000e_phy_has_link_generic(struct e1000_hw *hw, u32 iterations,
u32 usec_interval, bool *success);
extern s32 e1000e_phy_reset_dsp(struct e1000_hw *hw);
extern s32 e1000e_read_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 *data);
extern s32 e1000e_write_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 data);
extern s32 e1000e_check_downshift(struct e1000_hw *hw);
static inline s32 e1000_phy_hw_reset(struct e1000_hw *hw)
......
drivers/net/e1000e/es2lan.c
View file @ 2d9498f3
......@@ -41,6 +41,7 @@
#define E1000_KMRNCTRLSTA_OFFSET_FIFO_CTRL 0x00
#define E1000_KMRNCTRLSTA_OFFSET_INB_CTRL 0x02
#define E1000_KMRNCTRLSTA_OFFSET_HD_CTRL 0x10
#define E1000_KMRNCTRLSTA_OFFSET_MAC2PHY_OPMODE 0x1F
#define E1000_KMRNCTRLSTA_FIFO_CTRL_RX_BYPASS 0x0008
#define E1000_KMRNCTRLSTA_FIFO_CTRL_TX_BYPASS 0x0800
......@@ -48,6 +49,7 @@
#define E1000_KMRNCTRLSTA_HD_CTRL_10_100_DEFAULT 0x0004
#define E1000_KMRNCTRLSTA_HD_CTRL_1000_DEFAULT 0x0000
#define E1000_KMRNCTRLSTA_OPMODE_E_IDLE 0x2000
#define E1000_TCTL_EXT_GCEX_MASK 0x000FFC00 /* Gigabit Carry Extend Padding */
#define DEFAULT_TCTL_EXT_GCEX_80003ES2LAN 0x00010000
......@@ -85,6 +87,9 @@
/* Kumeran Mode Control Register (Page 193, Register 16) */
#define GG82563_KMCR_PASS_FALSE_CARRIER 0x0800
/* Max number of times Kumeran read/write should be validated */
#define GG82563_MAX_KMRN_RETRY 0x5
/* Power Management Control Register (Page 193, Register 20) */
#define GG82563_PMCR_ENABLE_ELECTRICAL_IDLE 0x0001
/* 1=Enable SERDES Electrical Idle */
......@@ -270,6 +275,7 @@ static s32 e1000_acquire_phy_80003es2lan(struct e1000_hw *hw)
u16 mask;
mask = hw->bus.func ? E1000_SWFW_PHY1_SM : E1000_SWFW_PHY0_SM;
mask |= E1000_SWFW_CSR_SM;
return e1000_acquire_swfw_sync_80003es2lan(hw, mask);
}
......@@ -286,6 +292,8 @@ static void e1000_release_phy_80003es2lan(struct e1000_hw *hw)
u16 mask;
mask = hw->bus.func ? E1000_SWFW_PHY1_SM : E1000_SWFW_PHY0_SM;
mask |= E1000_SWFW_CSR_SM;
e1000_release_swfw_sync_80003es2lan(hw, mask);
}
......@@ -410,20 +418,27 @@ static s32 e1000_read_phy_reg_gg82563_80003es2lan(struct e1000_hw *hw,
u32 page_select;
u16 temp;
ret_val = e1000_acquire_phy_80003es2lan(hw);
if (ret_val)
return ret_val;
/* Select Configuration Page */
if ((offset & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG)
if ((offset & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) {
page_select = GG82563_PHY_PAGE_SELECT;
else
} else {
/*
* Use Alternative Page Select register to access
* registers 30 and 31
*/
page_select = GG82563_PHY_PAGE_SELECT_ALT;
}
temp = (u16)((u16)offset >> GG82563_PAGE_SHIFT);
ret_val = e1000e_write_phy_reg_m88(hw, page_select, temp);
if (ret_val)
ret_val = e1000e_write_phy_reg_mdic(hw, page_select, temp);
if (ret_val) {
e1000_release_phy_80003es2lan(hw);
return ret_val;
}
/*
* The "ready" bit in the MDIC register may be incorrectly set
......@@ -433,20 +448,21 @@ static s32 e1000_read_phy_reg_gg82563_80003es2lan(struct e1000_hw *hw,
udelay(200);
/* ...and verify the command was successful. */
ret_val = e1000e_read_phy_reg_m88(hw, page_select, &temp);
ret_val = e1000e_read_phy_reg_mdic(hw, page_select, &temp);
if (((u16)offset >> GG82563_PAGE_SHIFT) != temp) {
ret_val = -E1000_ERR_PHY;
e1000_release_phy_80003es2lan(hw);
return ret_val;
}
udelay(200);
ret_val = e1000e_read_phy_reg_m88(hw,
MAX_PHY_REG_ADDRESS & offset,
ret_val = e1000e_read_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset,
data);
udelay(200);
e1000_release_phy_80003es2lan(hw);
return ret_val;
}
......@@ -467,20 +483,27 @@ static s32 e1000_write_phy_reg_gg82563_80003es2lan(struct e1000_hw *hw,
u32 page_select;
u16 temp;
ret_val = e1000_acquire_phy_80003es2lan(hw);
if (ret_val)
return ret_val;
/* Select Configuration Page */
if ((offset & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG)
if ((offset & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) {
page_select = GG82563_PHY_PAGE_SELECT;
else
} else {
/*
* Use Alternative Page Select register to access
* registers 30 and 31
*/
page_select = GG82563_PHY_PAGE_SELECT_ALT;
}
temp = (u16)((u16)offset >> GG82563_PAGE_SHIFT);
ret_val = e1000e_write_phy_reg_m88(hw, page_select, temp);
if (ret_val)
ret_val = e1000e_write_phy_reg_mdic(hw, page_select, temp);
if (ret_val) {
e1000_release_phy_80003es2lan(hw);
return ret_val;
}
/*
......@@ -491,18 +514,20 @@ static s32 e1000_write_phy_reg_gg82563_80003es2lan(struct e1000_hw *hw,
udelay(200);
/* ...and verify the command was successful. */
ret_val = e1000e_read_phy_reg_m88(hw, page_select, &temp);
ret_val = e1000e_read_phy_reg_mdic(hw, page_select, &temp);
if (((u16)offset >> GG82563_PAGE_SHIFT) != temp)
if (((u16)offset >> GG82563_PAGE_SHIFT) != temp) {
e1000_release_phy_80003es2lan(hw);
return -E1000_ERR_PHY;
}
udelay(200);
ret_val = e1000e_write_phy_reg_m88(hw,
MAX_PHY_REG_ADDRESS & offset,
ret_val = e1000e_write_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset,
data);
udelay(200);
e1000_release_phy_80003es2lan(hw);
return ret_val;
}
......@@ -882,10 +907,10 @@ static s32 e1000_copper_link_setup_gg82563_80003es2lan(struct e1000_hw *hw)
struct e1000_phy_info *phy = &hw->phy;
s32 ret_val;
u32 ctrl_ext;
u16 data;
u32 i = 0;
u16 data, data2;
ret_val = e1e_rphy(hw, GG82563_PHY_MAC_SPEC_CTRL,
&data);
ret_val = e1e_rphy(hw, GG82563_PHY_MAC_SPEC_CTRL, &data);
if (ret_val)
return ret_val;
......@@ -893,8 +918,7 @@ static s32 e1000_copper_link_setup_gg82563_80003es2lan(struct e1000_hw *hw)
/* Use 25MHz for both link down and 1000Base-T for Tx clock. */
data |= GG82563_MSCR_TX_CLK_1000MBPS_25;
ret_val = e1e_wphy(hw, GG82563_PHY_MAC_SPEC_CTRL,
data);
ret_val = e1e_wphy(hw, GG82563_PHY_MAC_SPEC_CTRL, data);
if (ret_val)
return ret_val;
......@@ -954,6 +978,18 @@ static s32 e1000_copper_link_setup_gg82563_80003es2lan(struct e1000_hw *hw)
if (ret_val)
return ret_val;
ret_val = e1000e_read_kmrn_reg(hw,
E1000_KMRNCTRLSTA_OFFSET_MAC2PHY_OPMODE,
&data);
if (ret_val)
return ret_val;
data |= E1000_KMRNCTRLSTA_OPMODE_E_IDLE;
ret_val = e1000e_write_kmrn_reg(hw,
E1000_KMRNCTRLSTA_OFFSET_MAC2PHY_OPMODE,
data);
if (ret_val)
return ret_val;
ret_val = e1e_rphy(hw, GG82563_PHY_SPEC_CTRL_2, &data);
if (ret_val)
return ret_val;
......@@ -983,10 +1019,19 @@ static s32 e1000_copper_link_setup_gg82563_80003es2lan(struct e1000_hw *hw)
if (ret_val)
return ret_val;
ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, &data);
do {
ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL,
&data);
if (ret_val)
return ret_val;
ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL,
&data2);
if (ret_val)
return ret_val;
i++;
} while ((data != data2) && (i < GG82563_MAX_KMRN_RETRY));
data &= ~GG82563_KMCR_PASS_FALSE_CARRIER;
ret_val = e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, data);
if (ret_val)
......@@ -1074,7 +1119,8 @@ static s32 e1000_cfg_kmrn_10_100_80003es2lan(struct e1000_hw *hw, u16 duplex)
{
s32 ret_val;
u32 tipg;
u16 reg_data;
u32 i = 0;
u16 reg_data, reg_data2;
reg_data = E1000_KMRNCTRLSTA_HD_CTRL_10_100_DEFAULT;
ret_val = e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_OFFSET_HD_CTRL,
......@@ -1088,10 +1134,17 @@ static s32 e1000_cfg_kmrn_10_100_80003es2lan(struct e1000_hw *hw, u16 duplex)
tipg |= DEFAULT_TIPG_IPGT_10_100_80003ES2LAN;
ew32(TIPG, tipg);
do {
ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, &reg_data);
if (ret_val)
return ret_val;
ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, &reg_data2);
if (ret_val)
return ret_val;
i++;
} while ((reg_data != reg_data2) && (i < GG82563_MAX_KMRN_RETRY));
if (duplex == HALF_DUPLEX)
reg_data |= GG82563_KMCR_PASS_FALSE_CARRIER;
else
......@@ -1112,8 +1165,9 @@ static s32 e1000_cfg_kmrn_10_100_80003es2lan(struct e1000_hw *hw, u16 duplex)
static s32 e1000_cfg_kmrn_1000_80003es2lan(struct e1000_hw *hw)
{
s32 ret_val;
u16 reg_data;
u16 reg_data, reg_data2;
u32 tipg;
u32 i = 0;
reg_data = E1000_KMRNCTRLSTA_HD_CTRL_1000_DEFAULT;
ret_val = e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_OFFSET_HD_CTRL,
......@@ -1127,10 +1181,17 @@ static s32 e1000_cfg_kmrn_1000_80003es2lan(struct e1000_hw *hw)
tipg |= DEFAULT_TIPG_IPGT_1000_80003ES2LAN;
ew32(TIPG, tipg);
do {
ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, &reg_data);
if (ret_val)
return ret_val;
ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, &reg_data2);
if (ret_val)
return ret_val;
i++;
} while ((reg_data != reg_data2) && (i < GG82563_MAX_KMRN_RETRY));
reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER;
ret_val = e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data);
......
drivers/net/e1000e/phy.c
View file @ 2d9498f3
......@@ -116,7 +116,7 @@ s32 e1000e_phy_reset_dsp(struct e1000_hw *hw)
}
/**
* e1000_read_phy_reg_mdic - Read MDI control register
* e1000e_read_phy_reg_mdic - Read MDI control register
* @hw: pointer to the HW structure
* @offset: register offset to be read
* @data: pointer to the read data
......@@ -124,7 +124,7 @@ s32 e1000e_phy_reset_dsp(struct e1000_hw *hw)
* Reads the MDI control register in the PHY at offset and stores the
* information read to data.
**/
static s32 e1000_read_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 *data)
s32 e1000e_read_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 *data)
{
struct e1000_phy_info *phy = &hw->phy;
u32 i, mdic = 0;
......@@ -150,7 +150,7 @@ static s32 e1000_read_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 *data)
* Increasing the time out as testing showed failures with
* the lower time out
*/
for (i = 0; i < 64; i++) {
for (i = 0; i < (E1000_GEN_POLL_TIMEOUT * 3); i++) {
udelay(50);
mdic = er32(MDIC);
if (mdic & E1000_MDIC_READY)
......@@ -170,14 +170,14 @@ static s32 e1000_read_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 *data)
}
/**
* e1000_write_phy_reg_mdic - Write MDI control register
* e1000e_write_phy_reg_mdic - Write MDI control register
* @hw: pointer to the HW structure
* @offset: register offset to write to
* @data: data to write to register at offset
*
* Writes data to MDI control register in the PHY at offset.
**/
static s32 e1000_write_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 data)
s32 e1000e_write_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 data)
{
struct e1000_phy_info *phy = &hw->phy;
u32 i, mdic = 0;
......@@ -199,9 +199,13 @@ static s32 e1000_write_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 data)
ew32(MDIC, mdic);
/* Poll the ready bit to see if the MDI read completed */
for (i = 0; i < E1000_GEN_POLL_TIMEOUT; i++) {
udelay(5);
/*
* Poll the ready bit to see if the MDI read completed
* Increasing the time out as testing showed failures with
* the lower time out
*/
for (i = 0; i < (E1000_GEN_POLL_TIMEOUT * 3); i++) {
udelay(50);
mdic = er32(MDIC);
if (mdic & E1000_MDIC_READY)
break;
......@@ -210,6 +214,10 @@ static s32 e1000_write_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 data)
hw_dbg(hw, "MDI Write did not complete\n");
return -E1000_ERR_PHY;
}
if (mdic & E1000_MDIC_ERROR) {
hw_dbg(hw, "MDI Error\n");
return -E1000_ERR_PHY;
}
return 0;
}
......@@ -232,8 +240,7 @@ s32 e1000e_read_phy_reg_m88(struct e1000_hw *hw, u32 offset, u16 *data)
if (ret_val)
return ret_val;
ret_val = e1000_read_phy_reg_mdic(hw,
MAX_PHY_REG_ADDRESS & offset,
ret_val = e1000e_read_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset,
data);
hw->phy.ops.release_phy(hw);
......@@ -258,8 +265,7 @@ s32 e1000e_write_phy_reg_m88(struct e1000_hw *hw, u32 offset, u16 data)
if (ret_val)
return ret_val;
ret_val = e1000_write_phy_reg_mdic(hw,
MAX_PHY_REG_ADDRESS & offset,
ret_val = e1000e_write_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset,
data);
hw->phy.ops.release_phy(hw);
......@@ -286,7 +292,7 @@ s32 e1000e_read_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 *data)
return ret_val;
if (offset > MAX_PHY_MULTI_PAGE_REG) {
ret_val = e1000_write_phy_reg_mdic(hw,
ret_val = e1000e_write_phy_reg_mdic(hw,
IGP01E1000_PHY_PAGE_SELECT,
(u16)offset);
if (ret_val) {
......@@ -295,8 +301,7 @@ s32 e1000e_read_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 *data)
}
}
ret_val = e1000_read_phy_reg_mdic(hw,
MAX_PHY_REG_ADDRESS & offset,
ret_val = e1000e_read_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset,
data);
hw->phy.ops.release_phy(hw);
......@@ -322,7 +327,7 @@ s32 e1000e_write_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 data)
return ret_val;
if (offset > MAX_PHY_MULTI_PAGE_REG) {
ret_val = e1000_write_phy_reg_mdic(hw,
ret_val = e1000e_write_phy_reg_mdic(hw,
IGP01E1000_PHY_PAGE_SELECT,
(u16)offset);
if (ret_val) {
......@@ -331,8 +336,7 @@ s32 e1000e_write_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 data)
}
}
ret_val = e1000_write_phy_reg_mdic(hw,
MAX_PHY_REG_ADDRESS & offset,
ret_val = e1000e_write_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset,
data);
hw->phy.ops.release_phy(hw);
......@@ -420,6 +424,8 @@ s32 e1000e_copper_link_setup_m88(struct e1000_hw *hw)
if (ret_val)
return ret_val;
/* For newer PHYs this bit is downshift enable */
if (phy->type == e1000_phy_m88)
phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX;
/*
......@@ -463,7 +469,7 @@ s32 e1000e_copper_link_setup_m88(struct e1000_hw *hw)
if (ret_val)
return ret_val;
if (phy->revision < 4) {
if ((phy->type == e1000_phy_m88) && (phy->revision < 4)) {
/*
* Force TX_CLK in the Extended PHY Specific Control Register
* to 25MHz clock.
......@@ -518,8 +524,11 @@ s32 e1000e_copper_link_setup_igp(struct e1000_hw *hw)
return ret_val;
}
/* Wait 15ms for MAC to configure PHY from NVM settings. */
msleep(15);
/*
* Wait 100ms for MAC to configure PHY from NVM settings, to avoid
* timeout issues when LFS is enabled.
*/
msleep(100);
/* disable lplu d0 during driver init */
ret_val = e1000_set_d0_lplu_state(hw, 0);
......@@ -1152,9 +1161,7 @@ s32 e1000e_set_d3_lplu_state(struct e1000_hw *hw, bool active)
if (!active) {
data &= ~IGP02E1000_PM_D3_LPLU;
ret_val = e1e_wphy(hw,
IGP02E1000_PHY_POWER_MGMT,
data);
ret_val = e1e_wphy(hw, IGP02E1000_PHY_POWER_MGMT, data);
if (ret_val)
return ret_val;
/*
......
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