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path: root/drivers/net/e1000e/82571.c
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Diffstat (limited to 'drivers/net/e1000e/82571.c')
-rw-r--r--drivers/net/e1000e/82571.c273
1 files changed, 251 insertions, 22 deletions
diff --git a/drivers/net/e1000e/82571.c b/drivers/net/e1000e/82571.c
index 0890162953e9..6c01a2072c87 100644
--- a/drivers/net/e1000e/82571.c
+++ b/drivers/net/e1000e/82571.c
@@ -40,6 +40,7 @@
* 82573E Gigabit Ethernet Controller (Copper)
* 82573L Gigabit Ethernet Controller
* 82574L Gigabit Network Connection
+ * 82583V Gigabit Network Connection
*/
#include <linux/netdevice.h>
@@ -61,6 +62,7 @@
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);
+static s32 e1000_check_for_serdes_link_82571(struct e1000_hw *hw);
static s32 e1000_write_nvm_eewr_82571(struct e1000_hw *hw, u16 offset,
u16 words, u16 *data);
static s32 e1000_fix_nvm_checksum_82571(struct e1000_hw *hw);
@@ -99,6 +101,7 @@ static s32 e1000_init_phy_params_82571(struct e1000_hw *hw)
phy->type = e1000_phy_m88;
break;
case e1000_82574:
+ case e1000_82583:
phy->type = e1000_phy_bm;
break;
default:
@@ -121,6 +124,7 @@ static s32 e1000_init_phy_params_82571(struct e1000_hw *hw)
return -E1000_ERR_PHY;
break;
case e1000_82574:
+ case e1000_82583:
if (phy->id != BME1000_E_PHY_ID_R2)
return -E1000_ERR_PHY;
break;
@@ -164,6 +168,7 @@ static s32 e1000_init_nvm_params_82571(struct e1000_hw *hw)
switch (hw->mac.type) {
case e1000_82573:
case e1000_82574:
+ case e1000_82583:
if (((eecd >> 15) & 0x3) == 0x3) {
nvm->type = e1000_nvm_flash_hw;
nvm->word_size = 2048;
@@ -250,7 +255,7 @@ static s32 e1000_init_mac_params_82571(struct e1000_adapter *adapter)
case e1000_media_type_internal_serdes:
func->setup_physical_interface =
e1000_setup_fiber_serdes_link_82571;
- func->check_for_link = e1000e_check_for_serdes_link;
+ func->check_for_link = e1000_check_for_serdes_link_82571;
func->get_link_up_info =
e1000e_get_speed_and_duplex_fiber_serdes;
break;
@@ -261,6 +266,7 @@ static s32 e1000_init_mac_params_82571(struct e1000_adapter *adapter)
switch (hw->mac.type) {
case e1000_82574:
+ case e1000_82583:
func->check_mng_mode = e1000_check_mng_mode_82574;
func->led_on = e1000_led_on_82574;
break;
@@ -374,6 +380,7 @@ static s32 e1000_get_phy_id_82571(struct e1000_hw *hw)
return e1000e_get_phy_id(hw);
break;
case e1000_82574:
+ case e1000_82583:
ret_val = e1e_rphy(hw, PHY_ID1, &phy_id);
if (ret_val)
return ret_val;
@@ -463,8 +470,15 @@ static s32 e1000_acquire_nvm_82571(struct e1000_hw *hw)
if (ret_val)
return ret_val;
- if (hw->mac.type != e1000_82573 && hw->mac.type != e1000_82574)
+ switch (hw->mac.type) {
+ case e1000_82573:
+ case e1000_82574:
+ case e1000_82583:
+ break;
+ default:
ret_val = e1000e_acquire_nvm(hw);
+ break;
+ }
if (ret_val)
e1000_put_hw_semaphore_82571(hw);
@@ -504,6 +518,7 @@ static s32 e1000_write_nvm_82571(struct e1000_hw *hw, u16 offset, u16 words,
switch (hw->mac.type) {
case e1000_82573:
case e1000_82574:
+ case e1000_82583:
ret_val = e1000_write_nvm_eewr_82571(hw, offset, words, data);
break;
case e1000_82571:
@@ -778,7 +793,10 @@ static s32 e1000_reset_hw_82571(struct e1000_hw *hw)
* Must acquire the MDIO ownership before MAC reset.
* Ownership defaults to firmware after a reset.
*/
- if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) {
+ switch (hw->mac.type) {
+ case e1000_82573:
+ case e1000_82574:
+ case e1000_82583:
extcnf_ctrl = er32(EXTCNF_CTRL);
extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP;
@@ -794,6 +812,9 @@ static s32 e1000_reset_hw_82571(struct e1000_hw *hw)
msleep(2);
i++;
} while (i < MDIO_OWNERSHIP_TIMEOUT);
+ break;
+ default:
+ break;
}
ctrl = er32(CTRL);
@@ -819,8 +840,16 @@ static s32 e1000_reset_hw_82571(struct e1000_hw *hw)
* Need to wait for Phy configuration completion before accessing
* NVM and Phy.
*/
- if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574)
+
+ switch (hw->mac.type) {
+ case e1000_82573:
+ case e1000_82574:
+ case e1000_82583:
msleep(25);
+ break;
+ default:
+ break;
+ }
/* Clear any pending interrupt events. */
ew32(IMC, 0xffffffff);
@@ -830,6 +859,10 @@ static s32 e1000_reset_hw_82571(struct e1000_hw *hw)
hw->dev_spec.e82571.alt_mac_addr_is_present)
e1000e_set_laa_state_82571(hw, true);
+ /* Reinitialize the 82571 serdes link state machine */
+ if (hw->phy.media_type == e1000_media_type_internal_serdes)
+ hw->mac.serdes_link_state = e1000_serdes_link_down;
+
return 0;
}
@@ -886,17 +919,22 @@ static s32 e1000_init_hw_82571(struct e1000_hw *hw)
ew32(TXDCTL(0), reg_data);
/* ...for both queues. */
- if (mac->type != e1000_82573 && mac->type != e1000_82574) {
+ switch (mac->type) {
+ case e1000_82573:
+ case e1000_82574:
+ case e1000_82583:
+ e1000e_enable_tx_pkt_filtering(hw);
+ reg_data = er32(GCR);
+ reg_data |= E1000_GCR_L1_ACT_WITHOUT_L0S_RX;
+ ew32(GCR, reg_data);
+ break;
+ default:
reg_data = er32(TXDCTL(1));
reg_data = (reg_data & ~E1000_TXDCTL_WTHRESH) |
E1000_TXDCTL_FULL_TX_DESC_WB |
E1000_TXDCTL_COUNT_DESC;
ew32(TXDCTL(1), reg_data);
- } else {
- e1000e_enable_tx_pkt_filtering(hw);
- reg_data = er32(GCR);
- reg_data |= E1000_GCR_L1_ACT_WITHOUT_L0S_RX;
- ew32(GCR, reg_data);
+ break;
}
/*
@@ -961,18 +999,30 @@ static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw)
}
/* Device Control */
- if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) {
+ switch (hw->mac.type) {
+ case e1000_82573:
+ case e1000_82574:
+ case e1000_82583:
reg = er32(CTRL);
reg &= ~(1 << 29);
ew32(CTRL, reg);
+ break;
+ default:
+ break;
}
/* Extended Device Control */
- if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) {
+ switch (hw->mac.type) {
+ case e1000_82573:
+ case e1000_82574:
+ case e1000_82583:
reg = er32(CTRL_EXT);
reg &= ~(1 << 23);
reg |= (1 << 22);
ew32(CTRL_EXT, reg);
+ break;
+ default:
+ break;
}
if (hw->mac.type == e1000_82571) {
@@ -980,9 +1030,23 @@ static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw)
reg |= E1000_PBA_ECC_CORR_EN;
ew32(PBA_ECC, reg);
}
+ /*
+ * Workaround for hardware errata.
+ * Ensure that DMA Dynamic Clock gating is disabled on 82571 and 82572
+ */
+
+ if ((hw->mac.type == e1000_82571) ||
+ (hw->mac.type == e1000_82572)) {
+ reg = er32(CTRL_EXT);
+ reg &= ~E1000_CTRL_EXT_DMA_DYN_CLK_EN;
+ ew32(CTRL_EXT, reg);
+ }
+
/* PCI-Ex Control Registers */
- if (hw->mac.type == e1000_82574) {
+ switch (hw->mac.type) {
+ case e1000_82574:
+ case e1000_82583:
reg = er32(GCR);
reg |= (1 << 22);
ew32(GCR, reg);
@@ -990,6 +1054,9 @@ static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw)
reg = er32(GCR2);
reg |= 1;
ew32(GCR2, reg);
+ break;
+ default:
+ break;
}
return;
@@ -1009,7 +1076,10 @@ void e1000e_clear_vfta(struct e1000_hw *hw)
u32 vfta_offset = 0;
u32 vfta_bit_in_reg = 0;
- if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) {
+ switch (hw->mac.type) {
+ case e1000_82573:
+ case e1000_82574:
+ case e1000_82583:
if (hw->mng_cookie.vlan_id != 0) {
/*
* The VFTA is a 4096b bit-field, each identifying
@@ -1024,6 +1094,9 @@ void e1000e_clear_vfta(struct e1000_hw *hw)
vfta_bit_in_reg = 1 << (hw->mng_cookie.vlan_id &
E1000_VFTA_ENTRY_BIT_SHIFT_MASK);
}
+ break;
+ default:
+ break;
}
for (offset = 0; offset < E1000_VLAN_FILTER_TBL_SIZE; offset++) {
/*
@@ -1122,9 +1195,16 @@ static s32 e1000_setup_link_82571(struct e1000_hw *hw)
* the default flow control setting, so we explicitly
* set it to full.
*/
- if ((hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) &&
- hw->fc.requested_mode == e1000_fc_default)
- hw->fc.requested_mode = e1000_fc_full;
+ switch (hw->mac.type) {
+ case e1000_82573:
+ case e1000_82574:
+ case e1000_82583:
+ if (hw->fc.requested_mode == e1000_fc_default)
+ hw->fc.requested_mode = e1000_fc_full;
+ break;
+ default:
+ break;
+ }
return e1000e_setup_link(hw);
}
@@ -1203,6 +1283,131 @@ static s32 e1000_setup_fiber_serdes_link_82571(struct e1000_hw *hw)
}
/**
+ * e1000_check_for_serdes_link_82571 - Check for link (Serdes)
+ * @hw: pointer to the HW structure
+ *
+ * Checks for link up on the hardware. If link is not up and we have
+ * a signal, then we need to force link up.
+ **/
+static s32 e1000_check_for_serdes_link_82571(struct e1000_hw *hw)
+{
+ struct e1000_mac_info *mac = &hw->mac;
+ u32 rxcw;
+ u32 ctrl;
+ u32 status;
+ s32 ret_val = 0;
+
+ ctrl = er32(CTRL);
+ status = er32(STATUS);
+ rxcw = er32(RXCW);
+
+ if ((rxcw & E1000_RXCW_SYNCH) && !(rxcw & E1000_RXCW_IV)) {
+
+ /* Receiver is synchronized with no invalid bits. */
+ switch (mac->serdes_link_state) {
+ case e1000_serdes_link_autoneg_complete:
+ if (!(status & E1000_STATUS_LU)) {
+ /*
+ * We have lost link, retry autoneg before
+ * reporting link failure
+ */
+ mac->serdes_link_state =
+ e1000_serdes_link_autoneg_progress;
+ hw_dbg(hw, "AN_UP -> AN_PROG\n");
+ }
+ break;
+
+ case e1000_serdes_link_forced_up:
+ /*
+ * If we are receiving /C/ ordered sets, re-enable
+ * auto-negotiation in the TXCW register and disable
+ * forced link in the Device Control register in an
+ * attempt to auto-negotiate with our link partner.
+ */
+ if (rxcw & E1000_RXCW_C) {
+ /* Enable autoneg, and unforce link up */
+ ew32(TXCW, mac->txcw);
+ ew32(CTRL,
+ (ctrl & ~E1000_CTRL_SLU));
+ mac->serdes_link_state =
+ e1000_serdes_link_autoneg_progress;
+ hw_dbg(hw, "FORCED_UP -> AN_PROG\n");
+ }
+ break;
+
+ case e1000_serdes_link_autoneg_progress:
+ /*
+ * If the LU bit is set in the STATUS register,
+ * autoneg has completed sucessfully. If not,
+ * try foring the link because the far end may be
+ * available but not capable of autonegotiation.
+ */
+ if (status & E1000_STATUS_LU) {
+ mac->serdes_link_state =
+ e1000_serdes_link_autoneg_complete;
+ hw_dbg(hw, "AN_PROG -> AN_UP\n");
+ } else {
+ /*
+ * Disable autoneg, force link up and
+ * full duplex, and change state to forced
+ */
+ ew32(TXCW,
+ (mac->txcw & ~E1000_TXCW_ANE));
+ ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FD);
+ ew32(CTRL, ctrl);
+
+ /* Configure Flow Control after link up. */
+ ret_val =
+ e1000e_config_fc_after_link_up(hw);
+ if (ret_val) {
+ hw_dbg(hw, "Error config flow control\n");
+ break;
+ }
+ mac->serdes_link_state =
+ e1000_serdes_link_forced_up;
+ hw_dbg(hw, "AN_PROG -> FORCED_UP\n");
+ }
+ mac->serdes_has_link = true;
+ break;
+
+ case e1000_serdes_link_down:
+ default:
+ /* The link was down but the receiver has now gained
+ * valid sync, so lets see if we can bring the link
+ * up. */
+ ew32(TXCW, mac->txcw);
+ ew32(CTRL,
+ (ctrl & ~E1000_CTRL_SLU));
+ mac->serdes_link_state =
+ e1000_serdes_link_autoneg_progress;
+ hw_dbg(hw, "DOWN -> AN_PROG\n");
+ break;
+ }
+ } else {
+ if (!(rxcw & E1000_RXCW_SYNCH)) {
+ mac->serdes_has_link = false;
+ mac->serdes_link_state = e1000_serdes_link_down;
+ hw_dbg(hw, "ANYSTATE -> DOWN\n");
+ } else {
+ /*
+ * We have sync, and can tolerate one
+ * invalid (IV) codeword before declaring
+ * link down, so reread to look again
+ */
+ udelay(10);
+ rxcw = er32(RXCW);
+ if (rxcw & E1000_RXCW_IV) {
+ mac->serdes_link_state = e1000_serdes_link_down;
+ mac->serdes_has_link = false;
+ hw_dbg(hw, "ANYSTATE -> DOWN\n");
+ }
+ }
+ }
+
+ return ret_val;
+}
+
+/**
* e1000_valid_led_default_82571 - Verify a valid default LED config
* @hw: pointer to the HW structure
* @data: pointer to the NVM (EEPROM)
@@ -1220,11 +1425,19 @@ static s32 e1000_valid_led_default_82571(struct e1000_hw *hw, u16 *data)
return ret_val;
}
- 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)
- *data = ID_LED_DEFAULT;
+ switch (hw->mac.type) {
+ case e1000_82573:
+ case e1000_82574:
+ case e1000_82583:
+ if (*data == ID_LED_RESERVED_F746)
+ *data = ID_LED_DEFAULT_82573;
+ break;
+ default:
+ if (*data == ID_LED_RESERVED_0000 ||
+ *data == ID_LED_RESERVED_FFFF)
+ *data = ID_LED_DEFAULT;
+ break;
+ }
return 0;
}
@@ -1517,3 +1730,19 @@ struct e1000_info e1000_82574_info = {
.nvm_ops = &e82571_nvm_ops,
};
+struct e1000_info e1000_82583_info = {
+ .mac = e1000_82583,
+ .flags = FLAG_HAS_HW_VLAN_FILTER
+ | 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,
+};
+
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.