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Date: Fri, 4 May 2012 03:35:10 -0700
From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To: davem@...emloft.net
Cc: Bruce Allan <bruce.w.allan@...el.com>, netdev@...r.kernel.org,
gospo@...hat.com, sassmann@...hat.com,
Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next 2/8] e1000e: initial support for i217
From: Bruce Allan <bruce.w.allan@...el.com>
i217 is the next-generation LOM that will be available on systems with the
Lynx Point Platform Controller Hub (PCH) chipset from Intel. This patch
provides the initial support for the device.
Signed-off-by: Bruce Allan <bruce.w.allan@...el.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
drivers/net/ethernet/intel/e1000e/defines.h | 8 +
drivers/net/ethernet/intel/e1000e/e1000.h | 2 +
drivers/net/ethernet/intel/e1000e/ethtool.c | 17 +-
drivers/net/ethernet/intel/e1000e/hw.h | 9 +
drivers/net/ethernet/intel/e1000e/ich8lan.c | 370 +++++++++++++++++++++++++--
drivers/net/ethernet/intel/e1000e/netdev.c | 17 +-
drivers/net/ethernet/intel/e1000e/phy.c | 3 +
7 files changed, 398 insertions(+), 28 deletions(-)
diff --git a/drivers/net/ethernet/intel/e1000e/defines.h b/drivers/net/ethernet/intel/e1000e/defines.h
index 3a50259..11c4666 100644
--- a/drivers/net/ethernet/intel/e1000e/defines.h
+++ b/drivers/net/ethernet/intel/e1000e/defines.h
@@ -74,7 +74,9 @@
#define E1000_WUS_BC E1000_WUFC_BC
/* Extended Device Control */
+#define E1000_CTRL_EXT_LPCD 0x00000004 /* LCD Power Cycle Done */
#define E1000_CTRL_EXT_SDP3_DATA 0x00000080 /* Value of SW Definable Pin 3 */
+#define E1000_CTRL_EXT_FORCE_SMBUS 0x00000004 /* Force SMBus mode*/
#define E1000_CTRL_EXT_EE_RST 0x00002000 /* Reinitialize from EEPROM */
#define E1000_CTRL_EXT_SPD_BYPS 0x00008000 /* Speed Select Bypass */
#define E1000_CTRL_EXT_RO_DIS 0x00020000 /* Relaxed Ordering disable */
@@ -573,6 +575,7 @@
#define NWAY_AR_ASM_DIR 0x0800 /* Asymmetric Pause Direction bit */
/* Link Partner Ability Register (Base Page) */
+#define NWAY_LPAR_100TX_FD_CAPS 0x0100 /* LP 100TX Full Dplx Capable */
#define NWAY_LPAR_PAUSE 0x0400 /* LP Pause operation desired */
#define NWAY_LPAR_ASM_DIR 0x0800 /* LP Asymmetric Pause Direction bit */
@@ -739,6 +742,7 @@
#define I82577_E_PHY_ID 0x01540050
#define I82578_E_PHY_ID 0x004DD040
#define I82579_E_PHY_ID 0x01540090
+#define I217_E_PHY_ID 0x015400A0
/* M88E1000 Specific Registers */
#define M88E1000_PHY_SPEC_CTRL 0x10 /* PHY Specific Control Register */
@@ -850,4 +854,8 @@
/* SerDes Control */
#define E1000_GEN_POLL_TIMEOUT 640
+/* FW Semaphore */
+#define E1000_FWSM_WLOCK_MAC_MASK 0x0380
+#define E1000_FWSM_WLOCK_MAC_SHIFT 7
+
#endif /* _E1000_DEFINES_H_ */
diff --git a/drivers/net/ethernet/intel/e1000e/e1000.h b/drivers/net/ethernet/intel/e1000e/e1000.h
index c960cf8..6e6fffb 100644
--- a/drivers/net/ethernet/intel/e1000e/e1000.h
+++ b/drivers/net/ethernet/intel/e1000e/e1000.h
@@ -206,6 +206,7 @@ enum e1000_boards {
board_ich10lan,
board_pchlan,
board_pch2lan,
+ board_pch_lpt,
};
struct e1000_ps_page {
@@ -528,6 +529,7 @@ extern const struct e1000_info e1000_ich9_info;
extern const struct e1000_info e1000_ich10_info;
extern const struct e1000_info e1000_pch_info;
extern const struct e1000_info e1000_pch2_info;
+extern const struct e1000_info e1000_pch_lpt_info;
extern const struct e1000_info e1000_es2_info;
extern s32 e1000_read_pba_string_generic(struct e1000_hw *hw, u8 *pba_num,
diff --git a/drivers/net/ethernet/intel/e1000e/ethtool.c b/drivers/net/ethernet/intel/e1000e/ethtool.c
index 4f1edd9..d863075 100644
--- a/drivers/net/ethernet/intel/e1000e/ethtool.c
+++ b/drivers/net/ethernet/intel/e1000e/ethtool.c
@@ -773,6 +773,7 @@ static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
u32 i;
u32 toggle;
u32 mask;
+ u32 wlock_mac = 0;
/*
* The status register is Read Only, so a write should fail.
@@ -838,19 +839,31 @@ static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
case e1000_ich10lan:
case e1000_pchlan:
case e1000_pch2lan:
+ case e1000_pch_lpt:
mask |= (1 << 18);
break;
default:
break;
}
- for (i = 0; i < mac->rar_entry_count; i++)
+
+ if (mac->type == e1000_pch_lpt)
+ wlock_mac = (er32(FWSM) & E1000_FWSM_WLOCK_MAC_MASK) >>
+ E1000_FWSM_WLOCK_MAC_SHIFT;
+
+ for (i = 0; i < mac->rar_entry_count; i++) {
+ /* Cannot test write-protected SHRAL[n] registers */
+ if ((wlock_mac == 1) || (wlock_mac && (i > wlock_mac)))
+ continue;
+
REG_PATTERN_TEST_ARRAY(E1000_RA, ((i << 1) + 1),
- mask, 0xFFFFFFFF);
+ mask, 0xFFFFFFFF);
+ }
for (i = 0; i < mac->mta_reg_count; i++)
REG_PATTERN_TEST_ARRAY(E1000_MTA, i, 0xFFFFFFFF, 0xFFFFFFFF);
*data = 0;
+
return 0;
}
diff --git a/drivers/net/ethernet/intel/e1000e/hw.h b/drivers/net/ethernet/intel/e1000e/hw.h
index 00a0ebb..ed5b409 100644
--- a/drivers/net/ethernet/intel/e1000e/hw.h
+++ b/drivers/net/ethernet/intel/e1000e/hw.h
@@ -200,6 +200,10 @@ enum e1e_registers {
#define E1000_RA (E1000_RAL(0))
E1000_RAH_BASE = 0x05404, /* Receive Address High - RW */
#define E1000_RAH(_n) (E1000_RAH_BASE + ((_n) * 8))
+ E1000_SHRAL_PCH_LPT_BASE = 0x05408,
+#define E1000_SHRAL_PCH_LPT(_n) (E1000_SHRAL_PCH_LPT_BASE + ((_n) * 8))
+ E1000_SHRAH_PCH_LTP_BASE = 0x0540C,
+#define E1000_SHRAH_PCH_LPT(_n) (E1000_SHRAH_PCH_LTP_BASE + ((_n) * 8))
E1000_SHRAL_BASE = 0x05438, /* Shared Receive Address Low - RW */
#define E1000_SHRAL(_n) (E1000_SHRAL_BASE + ((_n) * 8))
E1000_SHRAH_BASE = 0x0543C, /* Shared Receive Address High - RW */
@@ -406,6 +410,8 @@ enum e1e_registers {
#define E1000_DEV_ID_PCH_D_HV_DC 0x10F0
#define E1000_DEV_ID_PCH2_LV_LM 0x1502
#define E1000_DEV_ID_PCH2_LV_V 0x1503
+#define E1000_DEV_ID_PCH_LPT_I217_LM 0x153A
+#define E1000_DEV_ID_PCH_LPT_I217_V 0x153B
#define E1000_REVISION_4 4
@@ -426,6 +432,7 @@ enum e1000_mac_type {
e1000_ich10lan,
e1000_pchlan,
e1000_pch2lan,
+ e1000_pch_lpt,
};
enum e1000_media_type {
@@ -463,6 +470,7 @@ enum e1000_phy_type {
e1000_phy_82578,
e1000_phy_82577,
e1000_phy_82579,
+ e1000_phy_i217,
};
enum e1000_bus_width {
@@ -971,6 +979,7 @@ struct e1000_dev_spec_ich8lan {
struct e1000_shadow_ram shadow_ram[E1000_ICH8_SHADOW_RAM_WORDS];
bool nvm_k1_enabled;
bool eee_disable;
+ u16 eee_lp_ability;
};
struct e1000_hw {
diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c
index dfff441..bbf70ba 100644
--- a/drivers/net/ethernet/intel/e1000e/ich8lan.c
+++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c
@@ -116,6 +116,7 @@
#define E1000_ICH_RAR_ENTRIES 7
#define E1000_PCH2_RAR_ENTRIES 5 /* RAR[0], SHRA[0-3] */
+#define E1000_PCH_LPT_RAR_ENTRIES 12 /* RAR[0], SHRA[0-10] */
#define PHY_PAGE_SHIFT 5
#define PHY_REG(page, reg) (((page) << PHY_PAGE_SHIFT) | \
@@ -131,11 +132,18 @@
#define SW_FLAG_TIMEOUT 1000 /* SW Semaphore flag timeout in milliseconds */
+/* SMBus Control Phy Register */
+#define CV_SMB_CTRL PHY_REG(769, 23)
+#define CV_SMB_CTRL_FORCE_SMBUS 0x0001
+
/* SMBus Address Phy Register */
#define HV_SMB_ADDR PHY_REG(768, 26)
#define HV_SMB_ADDR_MASK 0x007F
#define HV_SMB_ADDR_PEC_EN 0x0200
#define HV_SMB_ADDR_VALID 0x0080
+#define HV_SMB_ADDR_FREQ_MASK 0x1100
+#define HV_SMB_ADDR_FREQ_LOW_SHIFT 8
+#define HV_SMB_ADDR_FREQ_HIGH_SHIFT 12
/* PHY Power Management Control */
#define HV_PM_CTRL PHY_REG(770, 17)
@@ -152,11 +160,26 @@
#define I82579_LPI_UPDATE_TIMER 0x4805 /* in 40ns units + 40 ns base value */
#define I82579_MSE_THRESHOLD 0x084F /* Mean Square Error Threshold */
#define I82579_MSE_LINK_DOWN 0x2411 /* MSE count before dropping link */
+#define I217_EEE_ADVERTISEMENT 0x8001 /* IEEE MMD Register 7.60 */
+#define I217_EEE_LP_ABILITY 0x8002 /* IEEE MMD Register 7.61 */
+#define I217_EEE_100_SUPPORTED (1 << 1) /* 100BaseTx EEE supported */
+
+/* Intel Rapid Start Technology Support */
+#define I217_PROXY_CTRL PHY_REG(BM_WUC_PAGE, 70)
+#define I217_PROXY_CTRL_AUTO_DISABLE 0x0080
+#define I217_SxCTRL PHY_REG(BM_PORT_CTRL_PAGE, 28)
+#define I217_SxCTRL_MASK 0x1000
+#define I217_CGFREG PHY_REG(772, 29)
+#define I217_CGFREG_MASK 0x0002
+#define I217_MEMPWR PHY_REG(772, 26)
+#define I217_MEMPWR_MASK 0x0010
/* Strapping Option Register - RO */
#define E1000_STRAP 0x0000C
#define E1000_STRAP_SMBUS_ADDRESS_MASK 0x00FE0000
#define E1000_STRAP_SMBUS_ADDRESS_SHIFT 17
+#define E1000_STRAP_SMT_FREQ_MASK 0x00003000
+#define E1000_STRAP_SMT_FREQ_SHIFT 12
/* OEM Bits Phy Register */
#define HV_OEM_BITS PHY_REG(768, 25)
@@ -261,6 +284,7 @@ static s32 e1000_set_mdio_slow_mode_hv(struct e1000_hw *hw);
static bool e1000_check_mng_mode_ich8lan(struct e1000_hw *hw);
static bool e1000_check_mng_mode_pchlan(struct e1000_hw *hw);
static void e1000_rar_set_pch2lan(struct e1000_hw *hw, u8 *addr, u32 index);
+static void e1000_rar_set_pch_lpt(struct e1000_hw *hw, u8 *addr, u32 index);
static s32 e1000_k1_workaround_lv(struct e1000_hw *hw);
static void e1000_gate_hw_phy_config_ich8lan(struct e1000_hw *hw, bool gate);
@@ -332,6 +356,7 @@ static s32 e1000_init_phy_workarounds_pchlan(struct e1000_hw *hw)
{
u32 mac_reg, fwsm = er32(FWSM);
s32 ret_val;
+ u16 phy_reg;
ret_val = hw->phy.ops.acquire(hw);
if (ret_val) {
@@ -345,16 +370,42 @@ static s32 e1000_init_phy_workarounds_pchlan(struct e1000_hw *hw)
* LANPHYPC Value bit to force the interconnect to PCIe mode.
*/
switch (hw->mac.type) {
+ case e1000_pch_lpt:
+ if (e1000_phy_is_accessible_pchlan(hw))
+ break;
+
+ /*
+ * Before toggling LANPHYPC, see if PHY is accessible by
+ * forcing MAC to SMBus mode first.
+ */
+ mac_reg = er32(CTRL_EXT);
+ mac_reg |= E1000_CTRL_EXT_FORCE_SMBUS;
+ ew32(CTRL_EXT, mac_reg);
+
+ /* fall-through */
case e1000_pch2lan:
/*
* Gate automatic PHY configuration by hardware on
* non-managed 82579
*/
- if (!(fwsm & E1000_ICH_FWSM_FW_VALID))
+ if ((hw->mac.type == e1000_pch2lan) &&
+ !(fwsm & E1000_ICH_FWSM_FW_VALID))
e1000_gate_hw_phy_config_ich8lan(hw, true);
- if (e1000_phy_is_accessible_pchlan(hw))
+ if (e1000_phy_is_accessible_pchlan(hw)) {
+ if (hw->mac.type == e1000_pch_lpt) {
+ /* Unforce SMBus mode in PHY */
+ e1e_rphy_locked(hw, CV_SMB_CTRL, &phy_reg);
+ phy_reg &= ~CV_SMB_CTRL_FORCE_SMBUS;
+ e1e_wphy_locked(hw, CV_SMB_CTRL, phy_reg);
+
+ /* Unforce SMBus mode in MAC */
+ mac_reg = er32(CTRL_EXT);
+ mac_reg &= ~E1000_CTRL_EXT_FORCE_SMBUS;
+ ew32(CTRL_EXT, mac_reg);
+ }
break;
+ }
/* fall-through */
case e1000_pchlan:
@@ -385,7 +436,15 @@ static s32 e1000_init_phy_workarounds_pchlan(struct e1000_hw *hw)
mac_reg &= ~E1000_CTRL_LANPHYPC_OVERRIDE;
ew32(CTRL, mac_reg);
e1e_flush();
- msleep(50);
+ if (hw->mac.type < e1000_pch_lpt) {
+ msleep(50);
+ } else {
+ u16 count = 20;
+ do {
+ usleep_range(5000, 10000);
+ } while (!(er32(CTRL_EXT) &
+ E1000_CTRL_EXT_LPCD) && count--);
+ }
break;
default:
break;
@@ -454,6 +513,7 @@ static s32 e1000_init_phy_params_pchlan(struct e1000_hw *hw)
break;
/* fall-through */
case e1000_pch2lan:
+ case e1000_pch_lpt:
/*
* In case the PHY needs to be in mdio slow mode,
* set slow mode and try to get the PHY id again.
@@ -471,6 +531,7 @@ static s32 e1000_init_phy_params_pchlan(struct e1000_hw *hw)
switch (phy->type) {
case e1000_phy_82577:
case e1000_phy_82579:
+ case e1000_phy_i217:
phy->ops.check_polarity = e1000_check_polarity_82577;
phy->ops.force_speed_duplex =
e1000_phy_force_speed_duplex_82577;
@@ -655,7 +716,7 @@ static s32 e1000_init_mac_params_ich8lan(struct e1000_hw *hw)
/* Adaptive IFS supported */
mac->adaptive_ifs = true;
- /* LED operations */
+ /* LED and other operations */
switch (mac->type) {
case e1000_ich8lan:
case e1000_ich9lan:
@@ -678,6 +739,7 @@ static s32 e1000_init_mac_params_ich8lan(struct e1000_hw *hw)
mac->rar_entry_count = E1000_PCH2_RAR_ENTRIES;
mac->ops.rar_set = e1000_rar_set_pch2lan;
/* fall-through */
+ case e1000_pch_lpt:
case e1000_pchlan:
/* check management mode */
mac->ops.check_mng_mode = e1000_check_mng_mode_pchlan;
@@ -695,12 +757,20 @@ static s32 e1000_init_mac_params_ich8lan(struct e1000_hw *hw)
break;
}
+ if (mac->type == e1000_pch_lpt) {
+ mac->rar_entry_count = E1000_PCH_LPT_RAR_ENTRIES;
+ mac->ops.rar_set = e1000_rar_set_pch_lpt;
+ }
+
/* Enable PCS Lock-loss workaround for ICH8 */
if (mac->type == e1000_ich8lan)
e1000e_set_kmrn_lock_loss_workaround_ich8lan(hw, true);
- /* Gate automatic PHY configuration by hardware on managed 82579 */
- if ((mac->type == e1000_pch2lan) &&
+ /*
+ * Gate automatic PHY configuration by hardware on managed
+ * 82579 and i217
+ */
+ if ((mac->type == e1000_pch2lan || mac->type == e1000_pch_lpt) &&
(er32(FWSM) & E1000_ICH_FWSM_FW_VALID))
e1000_gate_hw_phy_config_ich8lan(hw, true);
@@ -716,22 +786,50 @@ static s32 e1000_init_mac_params_ich8lan(struct e1000_hw *hw)
**/
static s32 e1000_set_eee_pchlan(struct e1000_hw *hw)
{
+ struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
s32 ret_val = 0;
u16 phy_reg;
- if (hw->phy.type != e1000_phy_82579)
+ if ((hw->phy.type != e1000_phy_82579) &&
+ (hw->phy.type != e1000_phy_i217))
return 0;
ret_val = e1e_rphy(hw, I82579_LPI_CTRL, &phy_reg);
if (ret_val)
return ret_val;
- if (hw->dev_spec.ich8lan.eee_disable)
+ if (dev_spec->eee_disable)
phy_reg &= ~I82579_LPI_CTRL_ENABLE_MASK;
else
phy_reg |= I82579_LPI_CTRL_ENABLE_MASK;
- return e1e_wphy(hw, I82579_LPI_CTRL, phy_reg);
+ ret_val = e1e_wphy(hw, I82579_LPI_CTRL, phy_reg);
+ if (ret_val)
+ return ret_val;
+
+ if ((hw->phy.type == e1000_phy_i217) && !dev_spec->eee_disable) {
+ /* Save off link partner's EEE ability */
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+ ret_val = e1e_wphy_locked(hw, I82579_EMI_ADDR,
+ I217_EEE_LP_ABILITY);
+ if (ret_val)
+ goto release;
+ e1e_rphy_locked(hw, I82579_EMI_DATA, &dev_spec->eee_lp_ability);
+
+ /*
+ * EEE is not supported in 100Half, so ignore partner's EEE
+ * in 100 ability if full-duplex is not advertised.
+ */
+ e1e_rphy_locked(hw, PHY_LP_ABILITY, &phy_reg);
+ if (!(phy_reg & NWAY_LPAR_100TX_FD_CAPS))
+ dev_spec->eee_lp_ability &= ~I217_EEE_100_SUPPORTED;
+release:
+ hw->phy.ops.release(hw);
+ }
+
+ return 0;
}
/**
@@ -773,6 +871,9 @@ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
return ret_val;
}
+ /* Clear link partner's EEE ability */
+ hw->dev_spec.ich8lan.eee_lp_ability = 0;
+
if (!link)
return 0; /* No link detected */
@@ -868,6 +969,7 @@ static s32 e1000_get_variants_ich8lan(struct e1000_adapter *adapter)
break;
case e1000_pchlan:
case e1000_pch2lan:
+ case e1000_pch_lpt:
rc = e1000_init_phy_params_pchlan(hw);
break;
default:
@@ -1117,6 +1219,81 @@ out:
}
/**
+ * e1000_rar_set_pch_lpt - Set receive address registers
+ * @hw: pointer to the HW structure
+ * @addr: pointer to the receive address
+ * @index: receive address array register
+ *
+ * Sets the receive address register array at index to the address passed
+ * in by addr. For LPT, RAR[0] is the base address register that is to
+ * contain the MAC address. SHRA[0-10] are the shared receive address
+ * registers that are shared between the Host and manageability engine (ME).
+ **/
+static void e1000_rar_set_pch_lpt(struct e1000_hw *hw, u8 *addr, u32 index)
+{
+ u32 rar_low, rar_high;
+ u32 wlock_mac;
+
+ /*
+ * HW expects these in little endian so we reverse the byte order
+ * from network order (big endian) to little endian
+ */
+ rar_low = ((u32)addr[0] | ((u32)addr[1] << 8) |
+ ((u32)addr[2] << 16) | ((u32)addr[3] << 24));
+
+ rar_high = ((u32)addr[4] | ((u32)addr[5] << 8));
+
+ /* If MAC address zero, no need to set the AV bit */
+ if (rar_low || rar_high)
+ rar_high |= E1000_RAH_AV;
+
+ if (index == 0) {
+ ew32(RAL(index), rar_low);
+ e1e_flush();
+ ew32(RAH(index), rar_high);
+ e1e_flush();
+ return;
+ }
+
+ /*
+ * The manageability engine (ME) can lock certain SHRAR registers that
+ * it is using - those registers are unavailable for use.
+ */
+ if (index < hw->mac.rar_entry_count) {
+ wlock_mac = er32(FWSM) & E1000_FWSM_WLOCK_MAC_MASK;
+ wlock_mac >>= E1000_FWSM_WLOCK_MAC_SHIFT;
+
+ /* Check if all SHRAR registers are locked */
+ if (wlock_mac == 1)
+ goto out;
+
+ if ((wlock_mac == 0) || (index <= wlock_mac)) {
+ s32 ret_val;
+
+ ret_val = e1000_acquire_swflag_ich8lan(hw);
+
+ if (ret_val)
+ goto out;
+
+ ew32(SHRAL_PCH_LPT(index - 1), rar_low);
+ e1e_flush();
+ ew32(SHRAH_PCH_LPT(index - 1), rar_high);
+ e1e_flush();
+
+ e1000_release_swflag_ich8lan(hw);
+
+ /* verify the register updates */
+ if ((er32(SHRAL_PCH_LPT(index - 1)) == rar_low) &&
+ (er32(SHRAH_PCH_LPT(index - 1)) == rar_high))
+ return;
+ }
+ }
+
+out:
+ e_dbg("Failed to write receive address at index %d\n", index);
+}
+
+/**
* e1000_check_reset_block_ich8lan - Check if PHY reset is blocked
* @hw: pointer to the HW structure
*
@@ -1144,6 +1321,8 @@ static s32 e1000_write_smbus_addr(struct e1000_hw *hw)
{
u16 phy_data;
u32 strap = er32(STRAP);
+ u32 freq = (strap & E1000_STRAP_SMT_FREQ_MASK) >>
+ E1000_STRAP_SMT_FREQ_SHIFT;
s32 ret_val = 0;
strap &= E1000_STRAP_SMBUS_ADDRESS_MASK;
@@ -1156,6 +1335,19 @@ static s32 e1000_write_smbus_addr(struct e1000_hw *hw)
phy_data |= (strap >> E1000_STRAP_SMBUS_ADDRESS_SHIFT);
phy_data |= HV_SMB_ADDR_PEC_EN | HV_SMB_ADDR_VALID;
+ if (hw->phy.type == e1000_phy_i217) {
+ /* Restore SMBus frequency */
+ if (freq--) {
+ phy_data &= ~HV_SMB_ADDR_FREQ_MASK;
+ phy_data |= (freq & (1 << 0)) <<
+ HV_SMB_ADDR_FREQ_LOW_SHIFT;
+ phy_data |= (freq & (1 << 1)) <<
+ (HV_SMB_ADDR_FREQ_HIGH_SHIFT - 1);
+ } else {
+ e_dbg("Unsupported SMB frequency in PHY\n");
+ }
+ }
+
return e1000_write_phy_reg_hv_locked(hw, HV_SMB_ADDR, phy_data);
}
@@ -1193,6 +1385,7 @@ static s32 e1000_sw_lcd_config_ich8lan(struct e1000_hw *hw)
/* Fall-thru */
case e1000_pchlan:
case e1000_pch2lan:
+ case e1000_pch_lpt:
sw_cfg_mask = E1000_FEXTNVM_SW_CONFIG_ICH8M;
break;
default:
@@ -1212,10 +1405,9 @@ static s32 e1000_sw_lcd_config_ich8lan(struct e1000_hw *hw)
* extended configuration before SW configuration
*/
data = er32(EXTCNF_CTRL);
- if (!(hw->mac.type == e1000_pch2lan)) {
- if (data & E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE)
- goto release;
- }
+ if ((hw->mac.type < e1000_pch2lan) &&
+ (data & E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE))
+ goto release;
cnf_size = er32(EXTCNF_SIZE);
cnf_size &= E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_MASK;
@@ -1226,9 +1418,9 @@ static s32 e1000_sw_lcd_config_ich8lan(struct e1000_hw *hw)
cnf_base_addr = data & E1000_EXTCNF_CTRL_EXT_CNF_POINTER_MASK;
cnf_base_addr >>= E1000_EXTCNF_CTRL_EXT_CNF_POINTER_SHIFT;
- if ((!(data & E1000_EXTCNF_CTRL_OEM_WRITE_ENABLE) &&
- (hw->mac.type == e1000_pchlan)) ||
- (hw->mac.type == e1000_pch2lan)) {
+ if (((hw->mac.type == e1000_pchlan) &&
+ !(data & E1000_EXTCNF_CTRL_OEM_WRITE_ENABLE)) ||
+ (hw->mac.type > e1000_pchlan)) {
/*
* HW configures the SMBus address and LEDs when the
* OEM and LCD Write Enable bits are set in the NVM.
@@ -1425,14 +1617,14 @@ static s32 e1000_oem_bits_config_ich8lan(struct e1000_hw *hw, bool d0_state)
u32 mac_reg;
u16 oem_reg;
- if ((hw->mac.type != e1000_pch2lan) && (hw->mac.type != e1000_pchlan))
+ if (hw->mac.type < e1000_pchlan)
return ret_val;
ret_val = hw->phy.ops.acquire(hw);
if (ret_val)
return ret_val;
- if (!(hw->mac.type == e1000_pch2lan)) {
+ if (hw->mac.type == e1000_pchlan) {
mac_reg = er32(EXTCNF_CTRL);
if (mac_reg & E1000_EXTCNF_CTRL_OEM_WRITE_ENABLE)
goto release;
@@ -1629,7 +1821,7 @@ s32 e1000_lv_jumbo_workaround_ich8lan(struct e1000_hw *hw, bool enable)
u32 mac_reg;
u16 i;
- if (hw->mac.type != e1000_pch2lan)
+ if (hw->mac.type < e1000_pch2lan)
return 0;
/* disable Rx path while enabling/disabling workaround */
@@ -1886,7 +2078,7 @@ static void e1000_gate_hw_phy_config_ich8lan(struct e1000_hw *hw, bool gate)
{
u32 extcnf_ctrl;
- if (hw->mac.type != e1000_pch2lan)
+ if (hw->mac.type < e1000_pch2lan)
return;
extcnf_ctrl = er32(EXTCNF_CTRL);
@@ -3525,6 +3717,7 @@ static s32 e1000_setup_link_ich8lan(struct e1000_hw *hw)
ew32(FCTTV, hw->fc.pause_time);
if ((hw->phy.type == e1000_phy_82578) ||
(hw->phy.type == e1000_phy_82579) ||
+ (hw->phy.type == e1000_phy_i217) ||
(hw->phy.type == e1000_phy_82577)) {
ew32(FCRTV_PCH, hw->fc.refresh_time);
@@ -3588,6 +3781,7 @@ static s32 e1000_setup_copper_link_ich8lan(struct e1000_hw *hw)
break;
case e1000_phy_82577:
case e1000_phy_82579:
+ case e1000_phy_i217:
ret_val = e1000_copper_link_setup_82577(hw);
if (ret_val)
return ret_val;
@@ -3834,14 +4028,88 @@ void e1000e_gig_downshift_workaround_ich8lan(struct e1000_hw *hw)
* the LPLU setting in the NVM or custom setting. For PCH and newer parts,
* the OEM bits PHY register (LED, GbE disable and LPLU configurations) also
* needs to be written.
+ * Parts that support (and are linked to a partner which support) EEE in
+ * 100Mbps should disable LPLU since 100Mbps w/ EEE requires less power
+ * than 10Mbps w/o EEE.
**/
void e1000_suspend_workarounds_ich8lan(struct e1000_hw *hw)
{
+ struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
u32 phy_ctrl;
s32 ret_val;
phy_ctrl = er32(PHY_CTRL);
phy_ctrl |= E1000_PHY_CTRL_GBE_DISABLE;
+ if (hw->phy.type == e1000_phy_i217) {
+ u16 phy_reg;
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ goto out;
+
+ if (!dev_spec->eee_disable) {
+ u16 eee_advert;
+
+ ret_val = e1e_wphy_locked(hw, I82579_EMI_ADDR,
+ I217_EEE_ADVERTISEMENT);
+ if (ret_val)
+ goto release;
+ e1e_rphy_locked(hw, I82579_EMI_DATA, &eee_advert);
+
+ /*
+ * Disable LPLU if both link partners support 100BaseT
+ * EEE and 100Full is advertised on both ends of the
+ * link.
+ */
+ if ((eee_advert & I217_EEE_100_SUPPORTED) &&
+ (dev_spec->eee_lp_ability &
+ I217_EEE_100_SUPPORTED) &&
+ (hw->phy.autoneg_advertised & ADVERTISE_100_FULL))
+ phy_ctrl &= ~(E1000_PHY_CTRL_D0A_LPLU |
+ E1000_PHY_CTRL_NOND0A_LPLU);
+ }
+
+ /*
+ * For i217 Intel Rapid Start Technology support,
+ * when the system is going into Sx and no manageability engine
+ * is present, the driver must configure proxy to reset only on
+ * power good. LPI (Low Power Idle) state must also reset only
+ * on power good, as well as the MTA (Multicast table array).
+ * The SMBus release must also be disabled on LCD reset.
+ */
+ if (!(er32(FWSM) & E1000_ICH_FWSM_FW_VALID)) {
+
+ /* Enable proxy to reset only on power good. */
+ e1e_rphy_locked(hw, I217_PROXY_CTRL, &phy_reg);
+ phy_reg |= I217_PROXY_CTRL_AUTO_DISABLE;
+ e1e_wphy_locked(hw, I217_PROXY_CTRL, phy_reg);
+
+ /*
+ * Set bit enable LPI (EEE) to reset only on
+ * power good.
+ */
+ e1e_rphy_locked(hw, I217_SxCTRL, &phy_reg);
+ phy_reg |= I217_SxCTRL_MASK;
+ e1e_wphy_locked(hw, I217_SxCTRL, phy_reg);
+
+ /* Disable the SMB release on LCD reset. */
+ e1e_rphy_locked(hw, I217_MEMPWR, &phy_reg);
+ phy_reg &= ~I217_MEMPWR;
+ e1e_wphy_locked(hw, I217_MEMPWR, phy_reg);
+ }
+
+ /*
+ * Enable MTA to reset for Intel Rapid Start Technology
+ * Support
+ */
+ e1e_rphy_locked(hw, I217_CGFREG, &phy_reg);
+ phy_reg |= I217_CGFREG_MASK;
+ e1e_wphy_locked(hw, I217_CGFREG, phy_reg);
+
+release:
+ hw->phy.ops.release(hw);
+ }
+out:
ew32(PHY_CTRL, phy_ctrl);
if (hw->mac.type == e1000_ich8lan)
@@ -3870,6 +4138,7 @@ void e1000_suspend_workarounds_ich8lan(struct e1000_hw *hw)
* on which PHY resets are not blocked, if the PHY registers cannot be
* accessed properly by the s/w toggle the LANPHYPC value to power cycle
* the PHY.
+ * On i217, setup Intel Rapid Start Technology.
**/
void e1000_resume_workarounds_pchlan(struct e1000_hw *hw)
{
@@ -3883,6 +4152,47 @@ void e1000_resume_workarounds_pchlan(struct e1000_hw *hw)
e_dbg("Failed to init PHY flow ret_val=%d\n", ret_val);
return;
}
+
+ /*
+ * For i217 Intel Rapid Start Technology support when the system
+ * is transitioning from Sx and no manageability engine is present
+ * configure SMBus to restore on reset, disable proxy, and enable
+ * the reset on MTA (Multicast table array).
+ */
+ if (hw->phy.type == e1000_phy_i217) {
+ u16 phy_reg;
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val) {
+ e_dbg("Failed to setup iRST\n");
+ return;
+ }
+
+ if (!(er32(FWSM) & E1000_ICH_FWSM_FW_VALID)) {
+ /*
+ * Restore clear on SMB if no manageability engine
+ * is present
+ */
+ ret_val = e1e_rphy_locked(hw, I217_MEMPWR, &phy_reg);
+ if (ret_val)
+ goto release;
+ phy_reg |= I217_MEMPWR_MASK;
+ e1e_wphy_locked(hw, I217_MEMPWR, phy_reg);
+
+ /* Disable Proxy */
+ e1e_wphy_locked(hw, I217_PROXY_CTRL, 0);
+ }
+ /* Enable reset on MTA */
+ ret_val = e1e_rphy_locked(hw, I217_CGFREG, &phy_reg);
+ if (ret_val)
+ goto release;
+ phy_reg &= ~I217_CGFREG_MASK;
+ e1e_wphy_locked(hw, I217_CGFREG, phy_reg);
+release:
+ if (ret_val)
+ e_dbg("Error %d in resume workarounds\n", ret_val);
+ hw->phy.ops.release(hw);
+ }
}
/**
@@ -4123,6 +4433,7 @@ static void e1000_clear_hw_cntrs_ich8lan(struct e1000_hw *hw)
/* Clear PHY statistics registers */
if ((hw->phy.type == e1000_phy_82578) ||
(hw->phy.type == e1000_phy_82579) ||
+ (hw->phy.type == e1000_phy_i217) ||
(hw->phy.type == e1000_phy_82577)) {
ret_val = hw->phy.ops.acquire(hw);
if (ret_val)
@@ -4282,3 +4593,22 @@ const struct e1000_info e1000_pch2_info = {
.phy_ops = &ich8_phy_ops,
.nvm_ops = &ich8_nvm_ops,
};
+
+const struct e1000_info e1000_pch_lpt_info = {
+ .mac = e1000_pch_lpt,
+ .flags = FLAG_IS_ICH
+ | FLAG_HAS_WOL
+ | FLAG_HAS_CTRLEXT_ON_LOAD
+ | FLAG_HAS_AMT
+ | FLAG_HAS_FLASH
+ | FLAG_HAS_JUMBO_FRAMES
+ | FLAG_APME_IN_WUC,
+ .flags2 = FLAG2_HAS_PHY_STATS
+ | FLAG2_HAS_EEE,
+ .pba = 26,
+ .max_hw_frame_size = DEFAULT_JUMBO,
+ .get_variants = e1000_get_variants_ich8lan,
+ .mac_ops = &ich8_mac_ops,
+ .phy_ops = &ich8_phy_ops,
+ .nvm_ops = &ich8_nvm_ops,
+};
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index c19784c..b53ea83 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -79,6 +79,7 @@ static const struct e1000_info *e1000_info_tbl[] = {
[board_ich10lan] = &e1000_ich10_info,
[board_pchlan] = &e1000_pch_info,
[board_pch2lan] = &e1000_pch2_info,
+ [board_pch_lpt] = &e1000_pch_lpt_info,
};
struct e1000_reg_info {
@@ -2863,8 +2864,8 @@ static void e1000_setup_rctl(struct e1000_adapter *adapter)
u32 rctl, rfctl;
u32 pages = 0;
- /* Workaround Si errata on 82579 - configure jumbo frame flow */
- if (hw->mac.type == e1000_pch2lan) {
+ /* Workaround Si errata on PCHx - configure jumbo frame flow */
+ if (hw->mac.type >= e1000_pch2lan) {
s32 ret_val;
if (adapter->netdev->mtu > ETH_DATA_LEN)
@@ -3487,6 +3488,7 @@ void e1000e_reset(struct e1000_adapter *adapter)
fc->refresh_time = 0x1000;
break;
case e1000_pch2lan:
+ case e1000_pch_lpt:
fc->high_water = 0x05C20;
fc->low_water = 0x05048;
fc->pause_time = 0x0650;
@@ -5264,11 +5266,11 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu)
return -EINVAL;
}
- /* Jumbo frame workaround on 82579 requires CRC be stripped */
- if ((adapter->hw.mac.type == e1000_pch2lan) &&
+ /* Jumbo frame workaround on 82579 and newer requires CRC be stripped */
+ if ((adapter->hw.mac.type >= e1000_pch2lan) &&
!(adapter->flags2 & FLAG2_CRC_STRIPPING) &&
(new_mtu > ETH_DATA_LEN)) {
- e_err("Jumbo Frames not supported on 82579 when CRC stripping is disabled.\n");
+ e_err("Jumbo Frames not supported on this device when CRC stripping is disabled.\n");
return -EINVAL;
}
@@ -5665,7 +5667,7 @@ static int __e1000_resume(struct pci_dev *pdev)
return err;
}
- if (hw->mac.type == e1000_pch2lan)
+ if (hw->mac.type >= e1000_pch2lan)
e1000_resume_workarounds_pchlan(&adapter->hw);
e1000e_power_up_phy(adapter);
@@ -6564,6 +6566,9 @@ static DEFINE_PCI_DEVICE_TABLE(e1000_pci_tbl) = {
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH2_LV_LM), board_pch2lan },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH2_LV_V), board_pch2lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_LPT_I217_LM), board_pch_lpt },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_LPT_I217_V), board_pch_lpt },
+
{ 0, 0, 0, 0, 0, 0, 0 } /* terminate list */
};
MODULE_DEVICE_TABLE(pci, e1000_pci_tbl);
diff --git a/drivers/net/ethernet/intel/e1000e/phy.c b/drivers/net/ethernet/intel/e1000e/phy.c
index ad22b8c..ada7133 100644
--- a/drivers/net/ethernet/intel/e1000e/phy.c
+++ b/drivers/net/ethernet/intel/e1000e/phy.c
@@ -2335,6 +2335,9 @@ enum e1000_phy_type e1000e_get_phy_type_from_id(u32 phy_id)
case I82579_E_PHY_ID:
phy_type = e1000_phy_82579;
break;
+ case I217_E_PHY_ID:
+ phy_type = e1000_phy_i217;
+ break;
default:
phy_type = e1000_phy_unknown;
break;
--
1.7.7.6
--
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