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path: root/drivers/net/ixgbe/ixgbe_common.c
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Diffstat (limited to 'drivers/net/ixgbe/ixgbe_common.c')
-rw-r--r--drivers/net/ixgbe/ixgbe_common.c947
1 files changed, 477 insertions, 470 deletions
diff --git a/drivers/net/ixgbe/ixgbe_common.c b/drivers/net/ixgbe/ixgbe_common.c
index ebbda7d1525..bcd952916eb 100644
--- a/drivers/net/ixgbe/ixgbe_common.c
+++ b/drivers/net/ixgbe/ixgbe_common.c
@@ -1,7 +1,7 @@
/*******************************************************************************
Intel 10 Gigabit PCI Express Linux driver
- Copyright(c) 1999 - 2010 Intel Corporation.
+ Copyright(c) 1999 - 2011 Intel Corporation.
This program is free software; you can redistribute it and/or modify it
under the terms and conditions of the GNU General Public License,
@@ -46,10 +46,13 @@ static void ixgbe_raise_eeprom_clk(struct ixgbe_hw *hw, u32 *eec);
static void ixgbe_lower_eeprom_clk(struct ixgbe_hw *hw, u32 *eec);
static void ixgbe_release_eeprom(struct ixgbe_hw *hw);
-static void ixgbe_enable_rar(struct ixgbe_hw *hw, u32 index);
-static void ixgbe_disable_rar(struct ixgbe_hw *hw, u32 index);
static s32 ixgbe_mta_vector(struct ixgbe_hw *hw, u8 *mc_addr);
-static void ixgbe_add_uc_addr(struct ixgbe_hw *hw, u8 *addr, u32 vmdq);
+static s32 ixgbe_fc_autoneg_fiber(struct ixgbe_hw *hw);
+static s32 ixgbe_fc_autoneg_backplane(struct ixgbe_hw *hw);
+static s32 ixgbe_fc_autoneg_copper(struct ixgbe_hw *hw);
+static s32 ixgbe_device_supports_autoneg_fc(struct ixgbe_hw *hw);
+static s32 ixgbe_negotiate_fc(struct ixgbe_hw *hw, u32 adv_reg, u32 lp_reg,
+ u32 adv_sym, u32 adv_asm, u32 lp_sym, u32 lp_asm);
static s32 ixgbe_setup_fc(struct ixgbe_hw *hw, s32 packetbuf_num);
/**
@@ -139,17 +142,29 @@ s32 ixgbe_clear_hw_cntrs_generic(struct ixgbe_hw *hw)
IXGBE_READ_REG(hw, IXGBE_MRFC);
IXGBE_READ_REG(hw, IXGBE_RLEC);
IXGBE_READ_REG(hw, IXGBE_LXONTXC);
- IXGBE_READ_REG(hw, IXGBE_LXONRXC);
IXGBE_READ_REG(hw, IXGBE_LXOFFTXC);
- IXGBE_READ_REG(hw, IXGBE_LXOFFRXC);
+ if (hw->mac.type >= ixgbe_mac_82599EB) {
+ IXGBE_READ_REG(hw, IXGBE_LXONRXCNT);
+ IXGBE_READ_REG(hw, IXGBE_LXOFFRXCNT);
+ } else {
+ IXGBE_READ_REG(hw, IXGBE_LXONRXC);
+ IXGBE_READ_REG(hw, IXGBE_LXOFFRXC);
+ }
for (i = 0; i < 8; i++) {
IXGBE_READ_REG(hw, IXGBE_PXONTXC(i));
- IXGBE_READ_REG(hw, IXGBE_PXONRXC(i));
IXGBE_READ_REG(hw, IXGBE_PXOFFTXC(i));
- IXGBE_READ_REG(hw, IXGBE_PXOFFRXC(i));
+ if (hw->mac.type >= ixgbe_mac_82599EB) {
+ IXGBE_READ_REG(hw, IXGBE_PXONRXCNT(i));
+ IXGBE_READ_REG(hw, IXGBE_PXOFFRXCNT(i));
+ } else {
+ IXGBE_READ_REG(hw, IXGBE_PXONRXC(i));
+ IXGBE_READ_REG(hw, IXGBE_PXOFFRXC(i));
+ }
}
-
+ if (hw->mac.type >= ixgbe_mac_82599EB)
+ for (i = 0; i < 8; i++)
+ IXGBE_READ_REG(hw, IXGBE_PXON2OFFCNT(i));
IXGBE_READ_REG(hw, IXGBE_PRC64);
IXGBE_READ_REG(hw, IXGBE_PRC127);
IXGBE_READ_REG(hw, IXGBE_PRC255);
@@ -187,9 +202,26 @@ s32 ixgbe_clear_hw_cntrs_generic(struct ixgbe_hw *hw)
IXGBE_READ_REG(hw, IXGBE_BPTC);
for (i = 0; i < 16; i++) {
IXGBE_READ_REG(hw, IXGBE_QPRC(i));
- IXGBE_READ_REG(hw, IXGBE_QBRC(i));
IXGBE_READ_REG(hw, IXGBE_QPTC(i));
- IXGBE_READ_REG(hw, IXGBE_QBTC(i));
+ if (hw->mac.type >= ixgbe_mac_82599EB) {
+ IXGBE_READ_REG(hw, IXGBE_QBRC_L(i));
+ IXGBE_READ_REG(hw, IXGBE_QBRC_H(i));
+ IXGBE_READ_REG(hw, IXGBE_QBTC_L(i));
+ IXGBE_READ_REG(hw, IXGBE_QBTC_H(i));
+ IXGBE_READ_REG(hw, IXGBE_QPRDC(i));
+ } else {
+ IXGBE_READ_REG(hw, IXGBE_QBRC(i));
+ IXGBE_READ_REG(hw, IXGBE_QBTC(i));
+ }
+ }
+
+ if (hw->mac.type == ixgbe_mac_X540) {
+ if (hw->phy.id == 0)
+ hw->phy.ops.identify(hw);
+ hw->phy.ops.read_reg(hw, 0x3, IXGBE_PCRC8ECL, &i);
+ hw->phy.ops.read_reg(hw, 0x3, IXGBE_PCRC8ECH, &i);
+ hw->phy.ops.read_reg(hw, 0x3, IXGBE_LDPCECL, &i);
+ hw->phy.ops.read_reg(hw, 0x3, IXGBE_LDPCECH, &i);
}
return 0;
@@ -454,8 +486,7 @@ s32 ixgbe_stop_adapter_generic(struct ixgbe_hw *hw)
* Prevent the PCI-E bus from from hanging by disabling PCI-E master
* access and verify no pending requests
*/
- if (ixgbe_disable_pcie_master(hw) != 0)
- hw_dbg(hw, "PCI-E Master disable polling has failed.\n");
+ ixgbe_disable_pcie_master(hw);
return 0;
}
@@ -603,7 +634,6 @@ s32 ixgbe_write_eeprom_generic(struct ixgbe_hw *hw, u16 offset, u16 data)
ixgbe_shift_out_eeprom_bits(hw, data, 16);
ixgbe_standby_eeprom(hw);
- msleep(hw->eeprom.semaphore_delay);
/* Done with writing - release the EEPROM */
ixgbe_release_eeprom(hw);
}
@@ -747,10 +777,10 @@ s32 ixgbe_poll_eerd_eewr_done(struct ixgbe_hw *hw, u32 ee_reg)
static s32 ixgbe_acquire_eeprom(struct ixgbe_hw *hw)
{
s32 status = 0;
- u32 eec = 0;
+ u32 eec;
u32 i;
- if (ixgbe_acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) != 0)
+ if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) != 0)
status = IXGBE_ERR_SWFW_SYNC;
if (status == 0) {
@@ -773,18 +803,18 @@ static s32 ixgbe_acquire_eeprom(struct ixgbe_hw *hw)
IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
hw_dbg(hw, "Could not acquire EEPROM grant\n");
- ixgbe_release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
+ hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
status = IXGBE_ERR_EEPROM;
}
- }
- /* Setup EEPROM for Read/Write */
- if (status == 0) {
- /* Clear CS and SK */
- eec &= ~(IXGBE_EEC_CS | IXGBE_EEC_SK);
- IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
- IXGBE_WRITE_FLUSH(hw);
- udelay(1);
+ /* Setup EEPROM for Read/Write */
+ if (status == 0) {
+ /* Clear CS and SK */
+ eec &= ~(IXGBE_EEC_CS | IXGBE_EEC_SK);
+ IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
+ IXGBE_WRITE_FLUSH(hw);
+ udelay(1);
+ }
}
return status;
}
@@ -798,13 +828,10 @@ static s32 ixgbe_acquire_eeprom(struct ixgbe_hw *hw)
static s32 ixgbe_get_eeprom_semaphore(struct ixgbe_hw *hw)
{
s32 status = IXGBE_ERR_EEPROM;
- u32 timeout;
+ u32 timeout = 2000;
u32 i;
u32 swsm;
- /* Set timeout value based on size of EEPROM */
- timeout = hw->eeprom.word_size + 1;
-
/* Get SMBI software semaphore between device drivers first */
for (i = 0; i < timeout; i++) {
/*
@@ -816,7 +843,7 @@ static s32 ixgbe_get_eeprom_semaphore(struct ixgbe_hw *hw)
status = 0;
break;
}
- msleep(1);
+ udelay(50);
}
/* Now get the semaphore between SW/FW through the SWESMBI bit */
@@ -844,11 +871,14 @@ static s32 ixgbe_get_eeprom_semaphore(struct ixgbe_hw *hw)
* was not granted because we don't have access to the EEPROM
*/
if (i >= timeout) {
- hw_dbg(hw, "Driver can't access the Eeprom - Semaphore "
+ hw_dbg(hw, "SWESMBI Software EEPROM semaphore "
"not granted.\n");
ixgbe_release_eeprom_semaphore(hw);
status = IXGBE_ERR_EEPROM;
}
+ } else {
+ hw_dbg(hw, "Software semaphore SMBI between device drivers "
+ "not granted.\n");
}
return status;
@@ -1080,11 +1110,14 @@ static void ixgbe_release_eeprom(struct ixgbe_hw *hw)
eec &= ~IXGBE_EEC_REQ;
IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
- ixgbe_release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
+ hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
+
+ /* Delay before attempt to obtain semaphore again to allow FW access */
+ msleep(hw->eeprom.semaphore_delay);
}
/**
- * ixgbe_calc_eeprom_checksum - Calculates and returns the checksum
+ * ixgbe_calc_eeprom_checksum_generic - Calculates and returns the checksum
* @hw: pointer to hardware structure
**/
u16 ixgbe_calc_eeprom_checksum_generic(struct ixgbe_hw *hw)
@@ -1190,7 +1223,7 @@ s32 ixgbe_update_eeprom_checksum_generic(struct ixgbe_hw *hw)
if (status == 0) {
checksum = hw->eeprom.ops.calc_checksum(hw);
status = hw->eeprom.ops.write(hw, IXGBE_EEPROM_CHECKSUM,
- checksum);
+ checksum);
} else {
hw_dbg(hw, "EEPROM read failed\n");
}
@@ -1238,37 +1271,37 @@ s32 ixgbe_set_rar_generic(struct ixgbe_hw *hw, u32 index, u8 *addr, u32 vmdq,
u32 rar_low, rar_high;
u32 rar_entries = hw->mac.num_rar_entries;
+ /* Make sure we are using a valid rar index range */
+ if (index >= rar_entries) {
+ hw_dbg(hw, "RAR index %d is out of range.\n", index);
+ return IXGBE_ERR_INVALID_ARGUMENT;
+ }
+
/* setup VMDq pool selection before this RAR gets enabled */
hw->mac.ops.set_vmdq(hw, index, vmdq);
- /* Make sure we are using a valid rar index range */
- if (index < rar_entries) {
- /*
- * 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));
- /*
- * Some parts put the VMDq setting in the extra RAH bits,
- * so save everything except the lower 16 bits that hold part
- * of the address and the address valid bit.
- */
- rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(index));
- rar_high &= ~(0x0000FFFF | IXGBE_RAH_AV);
- rar_high |= ((u32)addr[4] | ((u32)addr[5] << 8));
+ /*
+ * 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));
+ /*
+ * Some parts put the VMDq setting in the extra RAH bits,
+ * so save everything except the lower 16 bits that hold part
+ * of the address and the address valid bit.
+ */
+ rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(index));
+ rar_high &= ~(0x0000FFFF | IXGBE_RAH_AV);
+ rar_high |= ((u32)addr[4] | ((u32)addr[5] << 8));
- if (enable_addr != 0)
- rar_high |= IXGBE_RAH_AV;
+ if (enable_addr != 0)
+ rar_high |= IXGBE_RAH_AV;
- IXGBE_WRITE_REG(hw, IXGBE_RAL(index), rar_low);
- IXGBE_WRITE_REG(hw, IXGBE_RAH(index), rar_high);
- } else {
- hw_dbg(hw, "RAR index %d is out of range.\n", index);
- return IXGBE_ERR_RAR_INDEX;
- }
+ IXGBE_WRITE_REG(hw, IXGBE_RAL(index), rar_low);
+ IXGBE_WRITE_REG(hw, IXGBE_RAH(index), rar_high);
return 0;
}
@@ -1286,58 +1319,26 @@ s32 ixgbe_clear_rar_generic(struct ixgbe_hw *hw, u32 index)
u32 rar_entries = hw->mac.num_rar_entries;
/* Make sure we are using a valid rar index range */
- if (index < rar_entries) {
- /*
- * Some parts put the VMDq setting in the extra RAH bits,
- * so save everything except the lower 16 bits that hold part
- * of the address and the address valid bit.
- */
- rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(index));
- rar_high &= ~(0x0000FFFF | IXGBE_RAH_AV);
-
- IXGBE_WRITE_REG(hw, IXGBE_RAL(index), 0);
- IXGBE_WRITE_REG(hw, IXGBE_RAH(index), rar_high);
- } else {
+ if (index >= rar_entries) {
hw_dbg(hw, "RAR index %d is out of range.\n", index);
- return IXGBE_ERR_RAR_INDEX;
+ return IXGBE_ERR_INVALID_ARGUMENT;
}
- /* clear VMDq pool/queue selection for this RAR */
- hw->mac.ops.clear_vmdq(hw, index, IXGBE_CLEAR_VMDQ_ALL);
-
- return 0;
-}
-
-/**
- * ixgbe_enable_rar - Enable Rx address register
- * @hw: pointer to hardware structure
- * @index: index into the RAR table
- *
- * Enables the select receive address register.
- **/
-static void ixgbe_enable_rar(struct ixgbe_hw *hw, u32 index)
-{
- u32 rar_high;
-
+ /*
+ * Some parts put the VMDq setting in the extra RAH bits,
+ * so save everything except the lower 16 bits that hold part
+ * of the address and the address valid bit.
+ */
rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(index));
- rar_high |= IXGBE_RAH_AV;
+ rar_high &= ~(0x0000FFFF | IXGBE_RAH_AV);
+
+ IXGBE_WRITE_REG(hw, IXGBE_RAL(index), 0);
IXGBE_WRITE_REG(hw, IXGBE_RAH(index), rar_high);
-}
-/**
- * ixgbe_disable_rar - Disable Rx address register
- * @hw: pointer to hardware structure
- * @index: index into the RAR table
- *
- * Disables the select receive address register.
- **/
-static void ixgbe_disable_rar(struct ixgbe_hw *hw, u32 index)
-{
- u32 rar_high;
+ /* clear VMDq pool/queue selection for this RAR */
+ hw->mac.ops.clear_vmdq(hw, index, IXGBE_CLEAR_VMDQ_ALL);
- rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(index));
- rar_high &= (~IXGBE_RAH_AV);
- IXGBE_WRITE_REG(hw, IXGBE_RAH(index), rar_high);
+ return 0;
}
/**
@@ -1386,7 +1387,6 @@ s32 ixgbe_init_rx_addrs_generic(struct ixgbe_hw *hw)
}
/* Clear the MTA */
- hw->addr_ctrl.mc_addr_in_rar_count = 0;
hw->addr_ctrl.mta_in_use = 0;
IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL, hw->mac.mc_filter_type);
@@ -1401,105 +1401,6 @@ s32 ixgbe_init_rx_addrs_generic(struct ixgbe_hw *hw)
}
/**
- * ixgbe_add_uc_addr - Adds a secondary unicast address.
- * @hw: pointer to hardware structure
- * @addr: new address
- *
- * Adds it to unused receive address register or goes into promiscuous mode.
- **/
-static void ixgbe_add_uc_addr(struct ixgbe_hw *hw, u8 *addr, u32 vmdq)
-{
- u32 rar_entries = hw->mac.num_rar_entries;
- u32 rar;
-
- hw_dbg(hw, " UC Addr = %.2X %.2X %.2X %.2X %.2X %.2X\n",
- addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
-
- /*
- * Place this address in the RAR if there is room,
- * else put the controller into promiscuous mode
- */
- if (hw->addr_ctrl.rar_used_count < rar_entries) {
- rar = hw->addr_ctrl.rar_used_count -
- hw->addr_ctrl.mc_addr_in_rar_count;
- hw->mac.ops.set_rar(hw, rar, addr, vmdq, IXGBE_RAH_AV);
- hw_dbg(hw, "Added a secondary address to RAR[%d]\n", rar);
- hw->addr_ctrl.rar_used_count++;
- } else {
- hw->addr_ctrl.overflow_promisc++;
- }
-
- hw_dbg(hw, "ixgbe_add_uc_addr Complete\n");
-}
-
-/**
- * ixgbe_update_uc_addr_list_generic - Updates MAC list of secondary addresses
- * @hw: pointer to hardware structure
- * @netdev: pointer to net device structure
- *
- * The given list replaces any existing list. Clears the secondary addrs from
- * receive address registers. Uses unused receive address registers for the
- * first secondary addresses, and falls back to promiscuous mode as needed.
- *
- * Drivers using secondary unicast addresses must set user_set_promisc when
- * manually putting the device into promiscuous mode.
- **/
-s32 ixgbe_update_uc_addr_list_generic(struct ixgbe_hw *hw,
- struct net_device *netdev)
-{
- u32 i;
- u32 old_promisc_setting = hw->addr_ctrl.overflow_promisc;
- u32 uc_addr_in_use;
- u32 fctrl;
- struct netdev_hw_addr *ha;
-
- /*
- * Clear accounting of old secondary address list,
- * don't count RAR[0]
- */
- uc_addr_in_use = hw->addr_ctrl.rar_used_count - 1;
- hw->addr_ctrl.rar_used_count -= uc_addr_in_use;
- hw->addr_ctrl.overflow_promisc = 0;
-
- /* Zero out the other receive addresses */
- hw_dbg(hw, "Clearing RAR[1-%d]\n", uc_addr_in_use + 1);
- for (i = 0; i < uc_addr_in_use; i++) {
- IXGBE_WRITE_REG(hw, IXGBE_RAL(1+i), 0);
- IXGBE_WRITE_REG(hw, IXGBE_RAH(1+i), 0);
- }
-
- /* Add the new addresses */
- netdev_for_each_uc_addr(ha, netdev) {
- hw_dbg(hw, " Adding the secondary addresses:\n");
- ixgbe_add_uc_addr(hw, ha->addr, 0);
- }
-
- if (hw->addr_ctrl.overflow_promisc) {
- /* enable promisc if not already in overflow or set by user */
- if (!old_promisc_setting && !hw->addr_ctrl.user_set_promisc) {
- hw_dbg(hw, " Entering address overflow promisc mode\n");
- fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
- fctrl |= IXGBE_FCTRL_UPE;
- IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl);
- hw->addr_ctrl.uc_set_promisc = true;
- }
- } else {
- /* only disable if set by overflow, not by user */
- if ((old_promisc_setting && hw->addr_ctrl.uc_set_promisc) &&
- !(hw->addr_ctrl.user_set_promisc)) {
- hw_dbg(hw, " Leaving address overflow promisc mode\n");
- fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
- fctrl &= ~IXGBE_FCTRL_UPE;
- IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl);
- hw->addr_ctrl.uc_set_promisc = false;
- }
- }
-
- hw_dbg(hw, "ixgbe_update_uc_addr_list_generic Complete\n");
- return 0;
-}
-
-/**
* ixgbe_mta_vector - Determines bit-vector in multicast table to set
* @hw: pointer to hardware structure
* @mc_addr: the multicast address
@@ -1550,7 +1451,6 @@ static void ixgbe_set_mta(struct ixgbe_hw *hw, u8 *mc_addr)
u32 vector;
u32 vector_bit;
u32 vector_reg;
- u32 mta_reg;
hw->addr_ctrl.mta_in_use++;
@@ -1568,9 +1468,7 @@ static void ixgbe_set_mta(struct ixgbe_hw *hw, u8 *mc_addr)
*/
vector_reg = (vector >> 5) & 0x7F;
vector_bit = vector & 0x1F;
- mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
- mta_reg |= (1 << vector_bit);
- IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
+ hw->mac.mta_shadow[vector_reg] |= (1 << vector_bit);
}
/**
@@ -1596,18 +1494,21 @@ s32 ixgbe_update_mc_addr_list_generic(struct ixgbe_hw *hw,
hw->addr_ctrl.num_mc_addrs = netdev_mc_count(netdev);
hw->addr_ctrl.mta_in_use = 0;
- /* Clear the MTA */
+ /* Clear mta_shadow */
hw_dbg(hw, " Clearing MTA\n");
- for (i = 0; i < hw->mac.mcft_size; i++)
- IXGBE_WRITE_REG(hw, IXGBE_MTA(i), 0);
+ memset(&hw->mac.mta_shadow, 0, sizeof(hw->mac.mta_shadow));
- /* Add the new addresses */
+ /* Update mta shadow */
netdev_for_each_mc_addr(ha, netdev) {
hw_dbg(hw, " Adding the multicast addresses:\n");
ixgbe_set_mta(hw, ha->addr);
}
/* Enable mta */
+ for (i = 0; i < hw->mac.mcft_size; i++)
+ IXGBE_WRITE_REG_ARRAY(hw, IXGBE_MTA(0), i,
+ hw->mac.mta_shadow[i]);
+
if (hw->addr_ctrl.mta_in_use > 0)
IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL,
IXGBE_MCSTCTRL_MFE | hw->mac.mc_filter_type);
@@ -1624,15 +1525,8 @@ s32 ixgbe_update_mc_addr_list_generic(struct ixgbe_hw *hw,
**/
s32 ixgbe_enable_mc_generic(struct ixgbe_hw *hw)
{
- u32 i;
- u32 rar_entries = hw->mac.num_rar_entries;
struct ixgbe_addr_filter_info *a = &hw->addr_ctrl;
- if (a->mc_addr_in_rar_count > 0)
- for (i = (rar_entries - a->mc_addr_in_rar_count);
- i < rar_entries; i++)
- ixgbe_enable_rar(hw, i);
-
if (a->mta_in_use > 0)
IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL, IXGBE_MCSTCTRL_MFE |
hw->mac.mc_filter_type);
@@ -1648,15 +1542,8 @@ s32 ixgbe_enable_mc_generic(struct ixgbe_hw *hw)
**/
s32 ixgbe_disable_mc_generic(struct ixgbe_hw *hw)
{
- u32 i;
- u32 rar_entries = hw->mac.num_rar_entries;
struct ixgbe_addr_filter_info *a = &hw->addr_ctrl;
- if (a->mc_addr_in_rar_count > 0)
- for (i = (rar_entries - a->mc_addr_in_rar_count);
- i < rar_entries; i++)
- ixgbe_disable_rar(hw, i);
-
if (a->mta_in_use > 0)
IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL, hw->mac.mc_filter_type);
@@ -1685,7 +1572,7 @@ s32 ixgbe_fc_enable_generic(struct ixgbe_hw *hw, s32 packetbuf_num)
#endif /* CONFIG_DCB */
/* Negotiate the fc mode to use */
ret_val = ixgbe_fc_autoneg(hw);
- if (ret_val)
+ if (ret_val == IXGBE_ERR_FLOW_CONTROL)
goto out;
/* Disable any previous flow control settings */
@@ -1703,7 +1590,9 @@ s32 ixgbe_fc_enable_generic(struct ixgbe_hw *hw, s32 packetbuf_num)
* 2: Tx flow control is enabled (we can send pause frames but
* we do not support receiving pause frames).
* 3: Both Rx and Tx flow control (symmetric) are enabled.
+#ifdef CONFIG_DCB
* 4: Priority Flow Control is enabled.
+#endif
* other: Invalid.
*/
switch (hw->fc.current_mode) {
@@ -1791,12 +1680,13 @@ out:
**/
s32 ixgbe_fc_autoneg(struct ixgbe_hw *hw)
{
- s32 ret_val = 0;
+ s32 ret_val = IXGBE_ERR_FC_NOT_NEGOTIATED;
ixgbe_link_speed speed;
- u32 pcs_anadv_reg, pcs_lpab_reg, linkstat;
- u32 links2, anlp1_reg, autoc_reg, links;
bool link_up;
+ if (hw->fc.disable_fc_autoneg)
+ goto out;
+
/*
* AN should have completed when the cable was plugged in.
* Look for reasons to bail out. Bail out if:
@@ -1807,153 +1697,199 @@ s32 ixgbe_fc_autoneg(struct ixgbe_hw *hw)
* So use link_up_wait_to_complete=false.
*/
hw->mac.ops.check_link(hw, &speed, &link_up, false);
-
- if (hw->fc.disable_fc_autoneg || (!link_up)) {
- hw->fc.fc_was_autonegged = false;
- hw->fc.current_mode = hw->fc.requested_mode;
+ if (!link_up) {
+ ret_val = IXGBE_ERR_FLOW_CONTROL;
goto out;
}
- /*
- * On backplane, bail out if
- * - backplane autoneg was not completed, or if
- * - we are 82599 and link partner is not AN enabled
- */
- if (hw->phy.media_type == ixgbe_media_type_backplane) {
- links = IXGBE_READ_REG(hw, IXGBE_LINKS);
- if ((links & IXGBE_LINKS_KX_AN_COMP) == 0) {
- hw->fc.fc_was_autonegged = false;
- hw->fc.current_mode = hw->fc.requested_mode;
- goto out;
- }
+ switch (hw->phy.media_type) {
+ /* Autoneg flow control on fiber adapters */
+ case ixgbe_media_type_fiber:
+ if (speed == IXGBE_LINK_SPEED_1GB_FULL)
+ ret_val = ixgbe_fc_autoneg_fiber(hw);
+ break;
- if (hw->mac.type == ixgbe_mac_82599EB) {
- links2 = IXGBE_READ_REG(hw, IXGBE_LINKS2);
- if ((links2 & IXGBE_LINKS2_AN_SUPPORTED) == 0) {
- hw->fc.fc_was_autonegged = false;
- hw->fc.current_mode = hw->fc.requested_mode;
- goto out;
- }
- }
+ /* Autoneg flow control on backplane adapters */
+ case ixgbe_media_type_backplane:
+ ret_val = ixgbe_fc_autoneg_backplane(hw);
+ break;
+
+ /* Autoneg flow control on copper adapters */
+ case ixgbe_media_type_copper:
+ if (ixgbe_device_supports_autoneg_fc(hw) == 0)
+ ret_val = ixgbe_fc_autoneg_copper(hw);
+ break;
+
+ default:
+ break;
}
+out:
+ if (ret_val == 0) {
+ hw->fc.fc_was_autonegged = true;
+ } else {
+ hw->fc.fc_was_autonegged = false;
+ hw->fc.current_mode = hw->fc.requested_mode;
+ }
+ return ret_val;
+}
+
+/**
+ * ixgbe_fc_autoneg_fiber - Enable flow control on 1 gig fiber
+ * @hw: pointer to hardware structure
+ *
+ * Enable flow control according on 1 gig fiber.
+ **/
+static s32 ixgbe_fc_autoneg_fiber(struct ixgbe_hw *hw)
+{
+ u32 pcs_anadv_reg, pcs_lpab_reg, linkstat;
+ s32 ret_val;
+
/*
* On multispeed fiber at 1g, bail out if
* - link is up but AN did not complete, or if
* - link is up and AN completed but timed out
*/
- if (hw->phy.multispeed_fiber && (speed == IXGBE_LINK_SPEED_1GB_FULL)) {
- linkstat = IXGBE_READ_REG(hw, IXGBE_PCS1GLSTA);
- if (((linkstat & IXGBE_PCS1GLSTA_AN_COMPLETE) == 0) ||
- ((linkstat & IXGBE_PCS1GLSTA_AN_TIMED_OUT) == 1)) {
- hw->fc.fc_was_autonegged = false;
- hw->fc.current_mode = hw->fc.requested_mode;
- goto out;
- }
+
+ linkstat = IXGBE_READ_REG(hw, IXGBE_PCS1GLSTA);
+ if (((linkstat & IXGBE_PCS1GLSTA_AN_COMPLETE) == 0) ||
+ ((linkstat & IXGBE_PCS1GLSTA_AN_TIMED_OUT) == 1)) {
+ ret_val = IXGBE_ERR_FC_NOT_NEGOTIATED;
+ goto out;
}
+ pcs_anadv_reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANA);
+ pcs_lpab_reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANLP);
+
+ ret_val = ixgbe_negotiate_fc(hw, pcs_anadv_reg,
+ pcs_lpab_reg, IXGBE_PCS1GANA_SYM_PAUSE,
+ IXGBE_PCS1GANA_ASM_PAUSE,
+ IXGBE_PCS1GANA_SYM_PAUSE,
+ IXGBE_PCS1GANA_ASM_PAUSE);
+
+out:
+ return ret_val;
+}
+
+/**
+ * ixgbe_fc_autoneg_backplane - Enable flow control IEEE clause 37
+ * @hw: pointer to hardware structure
+ *
+ * Enable flow control according to IEEE clause 37.
+ **/
+static s32 ixgbe_fc_autoneg_backplane(struct ixgbe_hw *hw)
+{
+ u32 links2, anlp1_reg, autoc_reg, links;
+ s32 ret_val;
+
/*
- * Bail out on
- * - copper or CX4 adapters
- * - fiber adapters running at 10gig
+ * On backplane, bail out if
+ * - backplane autoneg was not completed, or if
+ * - we are 82599 and link partner is not AN enabled
*/
- if ((hw->phy.media_type == ixgbe_media_type_copper) ||
- (hw->phy.media_type == ixgbe_media_type_cx4) ||
- ((hw->phy.media_type == ixgbe_media_type_fiber) &&
- (speed == IXGBE_LINK_SPEED_10GB_FULL))) {
+ links = IXGBE_READ_REG(hw, IXGBE_LINKS);
+ if ((links & IXGBE_LINKS_KX_AN_COMP) == 0) {
hw->fc.fc_was_autonegged = false;
hw->fc.current_mode = hw->fc.requested_mode;
+ ret_val = IXGBE_ERR_FC_NOT_NEGOTIATED;
goto out;
}
+ if (hw->mac.type == ixgbe_mac_82599EB) {
+ links2 = IXGBE_READ_REG(hw, IXGBE_LINKS2);
+ if ((links2 & IXGBE_LINKS2_AN_SUPPORTED) == 0) {
+ hw->fc.fc_was_autonegged = false;
+ hw->fc.current_mode = hw->fc.requested_mode;
+ ret_val = IXGBE_ERR_FC_NOT_NEGOTIATED;
+ goto out;
+ }
+ }
/*
- * Read the AN advertisement and LP ability registers and resolve
+ * Read the 10g AN autoc and LP ability registers and resolve
* local flow control settings accordingly
*/
- if ((speed == IXGBE_LINK_SPEED_1GB_FULL) &&
- (hw->phy.media_type != ixgbe_media_type_backplane)) {
- pcs_anadv_reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANA);
- pcs_lpab_reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANLP);
- if ((pcs_anadv_reg & IXGBE_PCS1GANA_SYM_PAUSE) &&
- (pcs_lpab_reg & IXGBE_PCS1GANA_SYM_PAUSE)) {
- /*
- * Now we need to check if the user selected Rx ONLY
- * of pause frames. In this case, we had to advertise
- * FULL flow control because we could not advertise RX
- * ONLY. Hence, we must now check to see if we need to
- * turn OFF the TRANSMISSION of PAUSE frames.
- */
- if (hw->fc.requested_mode == ixgbe_fc_full) {
- hw->fc.current_mode = ixgbe_fc_full;
- hw_dbg(hw, "Flow Control = FULL.\n");
- } else {
- hw->fc.current_mode = ixgbe_fc_rx_pause;
- hw_dbg(hw, "Flow Control=RX PAUSE only\n");
- }
- } else if (!(pcs_anadv_reg & IXGBE_PCS1GANA_SYM_PAUSE) &&
- (pcs_anadv_reg & IXGBE_PCS1GANA_ASM_PAUSE) &&
- (pcs_lpab_reg & IXGBE_PCS1GANA_SYM_PAUSE) &&
- (pcs_lpab_reg & IXGBE_PCS1GANA_ASM_PAUSE)) {
- hw->fc.current_mode = ixgbe_fc_tx_pause;
- hw_dbg(hw, "Flow Control = TX PAUSE frames only.\n");
- } else if ((pcs_anadv_reg & IXGBE_PCS1GANA_SYM_PAUSE) &&
- (pcs_anadv_reg & IXGBE_PCS1GANA_ASM_PAUSE) &&
- !(pcs_lpab_reg & IXGBE_PCS1GANA_SYM_PAUSE) &&
- (pcs_lpab_reg & IXGBE_PCS1GANA_ASM_PAUSE)) {
- hw->fc.current_mode = ixgbe_fc_rx_pause;
- hw_dbg(hw, "Flow Control = RX PAUSE frames only.\n");
- } else {
- hw->fc.current_mode = ixgbe_fc_none;
- hw_dbg(hw, "Flow Control = NONE.\n");
- }
- }
+ autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
+ anlp1_reg = IXGBE_READ_REG(hw, IXGBE_ANLP1);
- if (hw->phy.media_type == ixgbe_media_type_backplane) {
+ ret_val = ixgbe_negotiate_fc(hw, autoc_reg,
+ anlp1_reg, IXGBE_AUTOC_SYM_PAUSE, IXGBE_AUTOC_ASM_PAUSE,
+ IXGBE_ANLP1_SYM_PAUSE, IXGBE_ANLP1_ASM_PAUSE);
+
+out:
+ return ret_val;
+}
+
+/**
+ * ixgbe_fc_autoneg_copper - Enable flow control IEEE clause 37
+ * @hw: pointer to hardware structure
+ *
+ * Enable flow control according to IEEE clause 37.
+ **/
+static s32 ixgbe_fc_autoneg_copper(struct ixgbe_hw *hw)
+{
+ u16 technology_ability_reg = 0;
+ u16 lp_technology_ability_reg = 0;
+
+ hw->phy.ops.read_reg(hw, MDIO_AN_ADVERTISE,
+ MDIO_MMD_AN,
+ &technology_ability_reg);
+ hw->phy.ops.read_reg(hw, MDIO_AN_LPA,
+ MDIO_MMD_AN,
+ &lp_technology_ability_reg);
+
+ return ixgbe_negotiate_fc(hw, (u32)technology_ability_reg,
+ (u32)lp_technology_ability_reg,
+ IXGBE_TAF_SYM_PAUSE, IXGBE_TAF_ASM_PAUSE,
+ IXGBE_TAF_SYM_PAUSE, IXGBE_TAF_ASM_PAUSE);
+}
+
+/**
+ * ixgbe_negotiate_fc - Negotiate flow control
+ * @hw: pointer to hardware structure
+ * @adv_reg: flow control advertised settings
+ * @lp_reg: link partner's flow control settings
+ * @adv_sym: symmetric pause bit in advertisement
+ * @adv_asm: asymmetric pause bit in advertisement
+ * @lp_sym: symmetric pause bit in link partner advertisement
+ * @lp_asm: asymmetric pause bit in link partner advertisement
+ *
+ * Find the intersection between advertised settings and link partner's
+ * advertised settings
+ **/
+static s32 ixgbe_negotiate_fc(struct ixgbe_hw *hw, u32 adv_reg, u32 lp_reg,
+ u32 adv_sym, u32 adv_asm, u32 lp_sym, u32 lp_asm)
+{
+ if ((!(adv_reg)) || (!(lp_reg)))
+ return IXGBE_ERR_FC_NOT_NEGOTIATED;
+
+ if ((adv_reg & adv_sym) && (lp_reg & lp_sym)) {
/*
- * Read the 10g AN autoc and LP ability registers and resolve
- * local flow control settings accordingly
+ * Now we need to check if the user selected Rx ONLY
+ * of pause frames. In this case, we had to advertise
+ * FULL flow control because we could not advertise RX
+ * ONLY. Hence, we must now check to see if we need to
+ * turn OFF the TRANSMISSION of PAUSE frames.
*/
- autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
- anlp1_reg = IXGBE_READ_REG(hw, IXGBE_ANLP1);
-
- if ((autoc_reg & IXGBE_AUTOC_SYM_PAUSE) &&
- (anlp1_reg & IXGBE_ANLP1_SYM_PAUSE)) {
- /*
- * Now we need to check if the user selected Rx ONLY
- * of pause frames. In this case, we had to advertise
- * FULL flow control because we could not advertise RX
- * ONLY. Hence, we must now check to see if we need to
- * turn OFF the TRANSMISSION of PAUSE frames.
- */
- if (hw->fc.requested_mode == ixgbe_fc_full) {
- hw->fc.current_mode = ixgbe_fc_full;
- hw_dbg(hw, "Flow Control = FULL.\n");
- } else {
- hw->fc.current_mode = ixgbe_fc_rx_pause;
- hw_dbg(hw, "Flow Control=RX PAUSE only\n");
- }
- } else if (!(autoc_reg & IXGBE_AUTOC_SYM_PAUSE) &&
- (autoc_reg & IXGBE_AUTOC_ASM_PAUSE) &&
- (anlp1_reg & IXGBE_ANLP1_SYM_PAUSE) &&
- (anlp1_reg & IXGBE_ANLP1_ASM_PAUSE)) {
- hw->fc.current_mode = ixgbe_fc_tx_pause;
- hw_dbg(hw, "Flow Control = TX PAUSE frames only.\n");
- } else if ((autoc_reg & IXGBE_AUTOC_SYM_PAUSE) &&
- (autoc_reg & IXGBE_AUTOC_ASM_PAUSE) &&
- !(anlp1_reg & IXGBE_ANLP1_SYM_PAUSE) &&
- (anlp1_reg & IXGBE_ANLP1_ASM_PAUSE)) {
- hw->fc.current_mode = ixgbe_fc_rx_pause;
- hw_dbg(hw, "Flow Control = RX PAUSE frames only.\n");
+ if (hw->fc.requested_mode == ixgbe_fc_full) {
+ hw->fc.current_mode = ixgbe_fc_full;
+ hw_dbg(hw, "Flow Control = FULL.\n");
} else {
- hw->fc.current_mode = ixgbe_fc_none;
- hw_dbg(hw, "Flow Control = NONE.\n");
+ hw->fc.current_mode = ixgbe_fc_rx_pause;
+ hw_dbg(hw, "Flow Control=RX PAUSE frames only\n");
}
+ } else if (!(adv_reg & adv_sym) && (adv_reg & adv_asm) &&
+ (lp_reg & lp_sym) && (lp_reg & lp_asm)) {
+ hw->fc.current_mode = ixgbe_fc_tx_pause;
+ hw_dbg(hw, "Flow Control = TX PAUSE frames only.\n");
+ } else if ((adv_reg & adv_sym) && (adv_reg & adv_asm) &&
+ !(lp_reg & lp_sym) && (lp_reg & lp_asm)) {
+ hw->fc.current_mode = ixgbe_fc_rx_pause;
+ hw_dbg(hw, "Flow Control = RX PAUSE frames only.\n");
+ } else {
+ hw->fc.current_mode = ixgbe_fc_none;
+ hw_dbg(hw, "Flow Control = NONE.\n");
}
- /* Record that current_mode is the result of a successful autoneg */
- hw->fc.fc_was_autonegged = true;
-
-out:
- return ret_val;
+ return 0;
}
/**
@@ -1965,7 +1901,8 @@ out:
static s32 ixgbe_setup_fc(struct ixgbe_hw *hw, s32 packetbuf_num)
{
s32 ret_val = 0;
- u32 reg;
+ u32 reg = 0, reg_bp = 0;
+ u16 reg_cu = 0;
#ifdef CONFIG_DCB
if (hw->fc.requested_mode == ixgbe_fc_pfc) {
@@ -1973,7 +1910,7 @@ static s32 ixgbe_setup_fc(struct ixgbe_hw *hw, s32 packetbuf_num)
goto out;
}
-#endif
+#endif /* CONFIG_DCB */
/* Validate the packetbuf configuration */
if (packetbuf_num < 0 || packetbuf_num > 7) {
hw_dbg(hw, "Invalid packet buffer number [%d], expected range "
@@ -2011,11 +1948,26 @@ static s32 ixgbe_setup_fc(struct ixgbe_hw *hw, s32 packetbuf_num)
hw->fc.requested_mode = ixgbe_fc_full;
/*
- * Set up the 1G flow control advertisement registers so the HW will be
- * able to do fc autoneg once the cable is plugged in. If we end up
- * using 10g instead, this is harmless.
+ * Set up the 1G and 10G flow control advertisement registers so the
+ * HW will be able to do fc autoneg once the cable is plugged in. If
+ * we link at 10G, the 1G advertisement is harmless and vice versa.
*/
- reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANA);
+
+ switch (hw->phy.media_type) {
+ case ixgbe_media_type_fiber:
+ case ixgbe_media_type_backplane:
+ reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANA);
+ reg_bp = IXGBE_READ_REG(hw, IXGBE_AUTOC);
+ break;
+
+ case ixgbe_media_type_copper:
+ hw->phy.ops.read_reg(hw, MDIO_AN_ADVERTISE,
+ MDIO_MMD_AN, &reg_cu);
+ break;
+
+ default:
+ ;
+ }
/*
* The possible values of fc.requested_mode are:
@@ -2034,6 +1986,11 @@ static s32 ixgbe_setup_fc(struct ixgbe_hw *hw, s32 packetbuf_num)
case ixgbe_fc_none:
/* Flow control completely disabled by software override. */
reg &= ~(IXGBE_PCS1GANA_SYM_PAUSE | IXGBE_PCS1GANA_ASM_PAUSE);
+ if (hw->phy.media_type == ixgbe_media_type_backplane)
+ reg_bp &= ~(IXGBE_AUTOC_SYM_PAUSE |
+ IXGBE_AUTOC_ASM_PAUSE);
+ else if (hw->phy.media_type == ixgbe_media_type_copper)
+ reg_cu &= ~(IXGBE_TAF_SYM_PAUSE | IXGBE_TAF_ASM_PAUSE);
break;
case ixgbe_fc_rx_pause:
/*
@@ -2045,6 +2002,11 @@ static s32 ixgbe_setup_fc(struct ixgbe_hw *hw, s32 packetbuf_num)
* disable the adapter's ability to send PAUSE frames.
*/
reg |= (IXGBE_PCS1GANA_SYM_PAUSE | IXGBE_PCS1GANA_ASM_PAUSE);
+ if (hw->phy.media_type == ixgbe_media_type_backplane)
+ reg_bp |= (IXGBE_AUTOC_SYM_PAUSE |
+ IXGBE_AUTOC_ASM_PAUSE);
+ else if (hw->phy.media_type == ixgbe_media_type_copper)
+ reg_cu |= (IXGBE_TAF_SYM_PAUSE | IXGBE_TAF_ASM_PAUSE);
break;
case ixgbe_fc_tx_pause:
/*
@@ -2053,10 +2015,22 @@ static s32 ixgbe_setup_fc(struct ixgbe_hw *hw, s32 packetbuf_num)
*/
reg |= (IXGBE_PCS1GANA_ASM_PAUSE);
reg &= ~(IXGBE_PCS1GANA_SYM_PAUSE);
+ if (hw->phy.media_type == ixgbe_media_type_backplane) {
+ reg_bp |= (IXGBE_AUTOC_ASM_PAUSE);
+ reg_bp &= ~(IXGBE_AUTOC_SYM_PAUSE);
+ } else if (hw->phy.media_type == ixgbe_media_type_copper) {
+ reg_cu |= (IXGBE_TAF_ASM_PAUSE);
+ reg_cu &= ~(IXGBE_TAF_SYM_PAUSE);
+ }
break;
case ixgbe_fc_full:
/* Flow control (both Rx and Tx) is enabled by SW override. */
reg |= (IXGBE_PCS1GANA_SYM_PAUSE | IXGBE_PCS1GANA_ASM_PAUSE);
+ if (hw->phy.media_type == ixgbe_media_type_backplane)
+ reg_bp |= (IXGBE_AUTOC_SYM_PAUSE |
+ IXGBE_AUTOC_ASM_PAUSE);
+ else if (hw->phy.media_type == ixgbe_media_type_copper)
+ reg_cu |= (IXGBE_TAF_SYM_PAUSE | IXGBE_TAF_ASM_PAUSE);
break;
#ifdef CONFIG_DCB
case ixgbe_fc_pfc:
@@ -2070,80 +2044,37 @@ static s32 ixgbe_setup_fc(struct ixgbe_hw *hw, s32 packetbuf_num)
break;
}
- IXGBE_WRITE_REG(hw, IXGBE_PCS1GANA, reg);
- reg = IXGBE_READ_REG(hw, IXGBE_PCS1GLCTL);
-
- /* Disable AN timeout */
- if (hw->fc.strict_ieee)
- reg &= ~IXGBE_PCS1GLCTL_AN_1G_TIMEOUT_EN;
+ if (hw->mac.type != ixgbe_mac_X540) {
+ /*
+ * Enable auto-negotiation between the MAC & PHY;
+ * the MAC will advertise clause 37 flow control.
+ */
+ IXGBE_WRITE_REG(hw, IXGBE_PCS1GANA, reg);
+ reg = IXGBE_READ_REG(hw, IXGBE_PCS1GLCTL);
- IXGBE_WRITE_REG(hw, IXGBE_PCS1GLCTL, reg);
- hw_dbg(hw, "Set up FC; PCS1GLCTL = 0x%08X\n", reg);
+ /* Disable AN timeout */
+ if (hw->fc.strict_ieee)
+ reg &= ~IXGBE_PCS1GLCTL_AN_1G_TIMEOUT_EN;
- /*
- * Set up the 10G flow control advertisement registers so the HW
- * can do fc autoneg once the cable is plugged in. If we end up
- * using 1g instead, this is harmless.
- */
- reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
+ IXGBE_WRITE_REG(hw, IXGBE_PCS1GLCTL, reg);
+ hw_dbg(hw, "Set up FC; PCS1GLCTL = 0x%08X\n", reg);
+ }
/*
- * The possible values of fc.requested_mode are:
- * 0: Flow control is completely disabled
- * 1: Rx flow control is enabled (we can receive pause frames,
- * but not send pause frames).
- * 2: Tx flow control is enabled (we can send pause frames but
- * we do not support receiving pause frames).
- * 3: Both Rx and Tx flow control (symmetric) are enabled.
- * other: Invalid.
+ * AUTOC restart handles negotiation of 1G and 10G on backplane
+ * and copper. There is no need to set the PCS1GCTL register.
+ *
*/
- switch (hw->fc.requested_mode) {
- case ixgbe_fc_none:
- /* Flow control completely disabled by software override. */
- reg &= ~(IXGBE_AUTOC_SYM_PAUSE | IXGBE_AUTOC_ASM_PAUSE);
- break;
- case ixgbe_fc_rx_pause:
- /*
- * Rx Flow control is enabled and Tx Flow control is
- * disabled by software override. Since there really
- * isn't a way to advertise that we are capable of RX
- * Pause ONLY, we will advertise that we support both
- * symmetric and asymmetric Rx PAUSE. Later, we will
- * disable the adapter's ability to send PAUSE frames.
- */
- reg |= (IXGBE_AUTOC_SYM_PAUSE | IXGBE_AUTOC_ASM_PAUSE);
- break;
- case ixgbe_fc_tx_pause:
- /*
- * Tx Flow control is enabled, and Rx Flow control is
- * disabled by software override.
- */
- reg |= (IXGBE_AUTOC_ASM_PAUSE);
- reg &= ~(IXGBE_AUTOC_SYM_PAUSE);
- break;
- case ixgbe_fc_full:
- /* Flow control (both Rx and Tx) is enabled by SW override. */
- reg |= (IXGBE_AUTOC_SYM_PAUSE | IXGBE_AUTOC_ASM_PAUSE);
- break;
-#ifdef CONFIG_DCB
- case ixgbe_fc_pfc:
- goto out;
- break;
-#endif /* CONFIG_DCB */
- default:
- hw_dbg(hw, "Flow control param set incorrectly\n");
- ret_val = IXGBE_ERR_CONFIG;
- goto out;
- break;
+ if (hw->phy.media_type == ixgbe_media_type_backplane) {
+ reg_bp |= IXGBE_AUTOC_AN_RESTART;
+ IXGBE_WRITE_REG(hw, IXGBE_AUTOC, reg_bp);
+ } else if ((hw->phy.media_type == ixgbe_media_type_copper) &&
+ (ixgbe_device_supports_autoneg_fc(hw) == 0)) {
+ hw->phy.ops.write_reg(hw, MDIO_AN_ADVERTISE,
+ MDIO_MMD_AN, reg_cu);
}
- /*
- * AUTOC restart handles negotiation of 1G and 10G. There is
- * no need to set the PCS1GCTL register.
- */
- reg |= IXGBE_AUTOC_AN_RESTART;
- IXGBE_WRITE_REG(hw, IXGBE_AUTOC, reg);
- hw_dbg(hw, "Set up FC; IXGBE_AUTOC = 0x%08X\n", reg);
+ hw_dbg(hw, "Set up FC; IXGBE_AUTOC = 0x%08X\n", reg);
out:
return ret_val;
}
@@ -2159,10 +2090,16 @@ out:
**/
s32 ixgbe_disable_pcie_master(struct ixgbe_hw *hw)
{
+ struct ixgbe_adapter *adapter = hw->back;
u32 i;
u32 reg_val;
u32 number_of_queues;
- s32 status = IXGBE_ERR_MASTER_REQUESTS_PENDING;
+ s32 status = 0;
+ u16 dev_status = 0;
+
+ /* Just jump out if bus mastering is already disabled */
+ if (!(IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_GIO))
+ goto out;
/* Disable the receive unit by stopping each queue */
number_of_queues = hw->mac.max_rx_queues;
@@ -2179,13 +2116,43 @@ s32 ixgbe_disable_pcie_master(struct ixgbe_hw *hw)
IXGBE_WRITE_REG(hw, IXGBE_CTRL, reg_val);
for (i = 0; i < IXGBE_PCI_MASTER_DISABLE_TIMEOUT; i++) {
- if (!(IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_GIO)) {
- status = 0;
+ if (!(IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_GIO))
+ goto check_device_status;
+ udelay(100);
+ }
+
+ hw_dbg(hw, "GIO Master Disable bit didn't clear - requesting resets\n");
+ status = IXGBE_ERR_MASTER_REQUESTS_PENDING;
+
+ /*
+ * Before proceeding, make sure that the PCIe block does not have
+ * transactions pending.
+ */
+check_device_status:
+ for (i = 0; i < IXGBE_PCI_MASTER_DISABLE_TIMEOUT; i++) {
+ pci_read_config_word(adapter->pdev, IXGBE_PCI_DEVICE_STATUS,
+ &dev_status);
+ if (!(dev_status & IXGBE_PCI_DEVICE_STATUS_TRANSACTION_PENDING))
break;
- }
udelay(100);
}
+ if (i == IXGBE_PCI_MASTER_DISABLE_TIMEOUT)
+ hw_dbg(hw, "PCIe transaction pending bit also did not clear.\n");
+ else
+ goto out;
+
+ /*
+ * Two consecutive resets are required via CTRL.RST per datasheet
+ * 5.2.5.3.2 Master Disable. We set a flag to inform the reset routine
+ * of this need. The first reset prevents new master requests from
+ * being issued by our device. We then must wait 1usec for any
+ * remaining completions from the PCIe bus to trickle in, and then reset
+ * again to clear out any effects they may have had on our device.
+ */
+ hw->mac.flags |= IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
+
+out:
return status;
}
@@ -2195,7 +2162,7 @@ s32 ixgbe_disable_pcie_master(struct ixgbe_hw *hw)
* @hw: pointer to hardware structure
* @mask: Mask to specify which semaphore to acquire
*
- * Acquires the SWFW semaphore thought the GSSR register for the specified
+ * Acquires the SWFW semaphore through the GSSR register for the specified
* function (CSR, PHY0, PHY1, EEPROM, Flash)
**/
s32 ixgbe_acquire_swfw_sync(struct ixgbe_hw *hw, u16 mask)
@@ -2206,6 +2173,10 @@ s32 ixgbe_acquire_swfw_sync(struct ixgbe_hw *hw, u16 mask)
s32 timeout = 200;
while (timeout) {
+ /*
+ * SW EEPROM semaphore bit is used for access to all
+ * SW_FW_SYNC/GSSR bits (not just EEPROM)
+ */
if (ixgbe_get_eeprom_semaphore(hw))
return IXGBE_ERR_SWFW_SYNC;
@@ -2223,7 +2194,7 @@ s32 ixgbe_acquire_swfw_sync(struct ixgbe_hw *hw, u16 mask)
}
if (!timeout) {
- hw_dbg(hw, "Driver can't access resource, GSSR timeout.\n");
+ hw_dbg(hw, "Driver can't access resource, SW_FW_SYNC timeout.\n");
return IXGBE_ERR_SWFW_SYNC;
}
@@ -2239,7 +2210,7 @@ s32 ixgbe_acquire_swfw_sync(struct ixgbe_hw *hw, u16 mask)
* @hw: pointer to hardware structure
* @mask: Mask to specify which semaphore to release
*
- * Releases the SWFW semaphore thought the GSSR register for the specified
+ * Releases the SWFW semaphore through the GSSR register for the specified
* function (CSR, PHY0, PHY1, EEPROM, Flash)
**/
void ixgbe_release_swfw_sync(struct ixgbe_hw *hw, u16 mask)
@@ -2427,37 +2398,38 @@ s32 ixgbe_clear_vmdq_generic(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
u32 mpsar_lo, mpsar_hi;
u32 rar_entries = hw->mac.num_rar_entries;
- if (rar < rar_entries) {
- mpsar_lo = IXGBE_READ_REG(hw, IXGBE_MPSAR_LO(rar));
- mpsar_hi = IXGBE_READ_REG(hw, IXGBE_MPSAR_HI(rar));
+ /* Make sure we are using a valid rar index range */
+ if (rar >= rar_entries) {
+ hw_dbg(hw, "RAR index %d is out of range.\n", rar);
+ return IXGBE_ERR_INVALID_ARGUMENT;
+ }
- if (!mpsar_lo && !mpsar_hi)
- goto done;
+ mpsar_lo = IXGBE_READ_REG(hw, IXGBE_MPSAR_LO(rar));
+ mpsar_hi = IXGBE_READ_REG(hw, IXGBE_MPSAR_HI(rar));
- if (vmdq == IXGBE_CLEAR_VMDQ_ALL) {
- if (mpsar_lo) {
- IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), 0);
- mpsar_lo = 0;
- }
- if (mpsar_hi) {
- IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), 0);
- mpsar_hi = 0;
- }
- } else if (vmdq < 32) {
- mpsar_lo &= ~(1 << vmdq);
- IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), mpsar_lo);
- } else {
- mpsar_hi &= ~(1 << (vmdq - 32));
- IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), mpsar_hi);
- }
+ if (!mpsar_lo && !mpsar_hi)
+ goto done;
- /* was that the last pool using this rar? */
- if (mpsar_lo == 0 && mpsar_hi == 0 && rar != 0)
- hw->mac.ops.clear_rar(hw, rar);
+ if (vmdq == IXGBE_CLEAR_VMDQ_ALL) {
+ if (mpsar_lo) {
+ IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), 0);
+ mpsar_lo = 0;
+ }
+ if (mpsar_hi) {
+ IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), 0);
+ mpsar_hi = 0;
+ }
+ } else if (vmdq < 32) {
+ mpsar_lo &= ~(1 << vmdq);
+ IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), mpsar_lo);
} else {
- hw_dbg(hw, "RAR index %d is out of range.\n", rar);
+ mpsar_hi &= ~(1 << (vmdq - 32));
+ IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), mpsar_hi);
}
+ /* was that the last pool using this rar? */
+ if (mpsar_lo == 0 && mpsar_hi == 0 && rar != 0)
+ hw->mac.ops.clear_rar(hw, rar);
done:
return 0;
}
@@ -2473,18 +2445,20 @@ s32 ixgbe_set_vmdq_generic(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
u32 mpsar;
u32 rar_entries = hw->mac.num_rar_entries;
- if (rar < rar_entries) {
- if (vmdq < 32) {
- mpsar = IXGBE_READ_REG(hw, IXGBE_MPSAR_LO(rar));
- mpsar |= 1 << vmdq;
- IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), mpsar);
- } else {
- mpsar = IXGBE_READ_REG(hw, IXGBE_MPSAR_HI(rar));
- mpsar |= 1 << (vmdq - 32);
- IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), mpsar);
- }
- } else {
+ /* Make sure we are using a valid rar index range */
+ if (rar >= rar_entries) {
hw_dbg(hw, "RAR index %d is out of range.\n", rar);
+ return IXGBE_ERR_INVALID_ARGUMENT;
+ }
+
+ if (vmdq < 32) {
+ mpsar = IXGBE_READ_REG(hw, IXGBE_MPSAR_LO(rar));
+ mpsar |= 1 << vmdq;
+ IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), mpsar);
+ } else {
+ mpsar = IXGBE_READ_REG(hw, IXGBE_MPSAR_HI(rar));
+ mpsar |= 1 << (vmdq - 32);
+ IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), mpsar);
}
return 0;
}
@@ -2497,7 +2471,6 @@ s32 ixgbe_init_uta_tables_generic(struct ixgbe_hw *hw)
{
int i;
-
for (i = 0; i < 128; i++)
IXGBE_WRITE_REG(hw, IXGBE_UTA(i), 0);
@@ -2726,12 +2699,21 @@ s32 ixgbe_clear_vfta_generic(struct ixgbe_hw *hw)
* Reads the links register to determine if link is up and the current speed
**/
s32 ixgbe_check_mac_link_generic(struct ixgbe_hw *hw, ixgbe_link_speed *speed,
- bool *link_up, bool link_up_wait_to_complete)
+ bool *link_up, bool link_up_wait_to_complete)
{
- u32 links_reg;
+ u32 links_reg, links_orig;
u32 i;
+ /* clear the old state */
+ links_orig = IXGBE_READ_REG(hw, IXGBE_LINKS);
+
links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
+
+ if (links_orig != links_reg) {
+ hw_dbg(hw, "LINKS changed from %08X to %08X\n",
+ links_orig, links_reg);
+ }
+
if (link_up_wait_to_complete) {
for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
if (links_reg & IXGBE_LINKS_UP) {
@@ -2754,10 +2736,13 @@ s32 ixgbe_check_mac_link_generic(struct ixgbe_hw *hw, ixgbe_link_speed *speed,
IXGBE_LINKS_SPEED_10G_82599)
*speed = IXGBE_LINK_SPEED_10GB_FULL;
else if ((links_reg & IXGBE_LINKS_SPEED_82599) ==
- IXGBE_LINKS_SPEED_1G_82599)
+ IXGBE_LINKS_SPEED_1G_82599)
*speed = IXGBE_LINK_SPEED_1GB_FULL;
- else
+ else if ((links_reg & IXGBE_LINKS_SPEED_82599) ==
+ IXGBE_LINKS_SPEED_100_82599)
*speed = IXGBE_LINK_SPEED_100_FULL;
+ else
+ *speed = IXGBE_LINK_SPEED_UNKNOWN;
/* if link is down, zero out the current_mode */
if (*link_up == false) {
@@ -2814,6 +2799,28 @@ wwn_prefix_out:
}
/**
+ * ixgbe_device_supports_autoneg_fc - Check if phy supports autoneg flow
+ * control
+ * @hw: pointer to hardware structure
+ *
+ * There are several phys that do not support autoneg flow control. This
+ * function check the device id to see if the associated phy supports
+ * autoneg flow control.
+ **/
+static s32 ixgbe_device_supports_autoneg_fc(struct ixgbe_hw *hw)
+{
+
+ switch (hw->device_id) {
+ case IXGBE_DEV_ID_X540T:
+ return 0;
+ case IXGBE_DEV_ID_82599_T3_LOM:
+ return 0;
+ default:
+ return IXGBE_ERR_FC_NOT_SUPPORTED;
+ }
+}
+
+/**
* ixgbe_set_mac_anti_spoofing - Enable/Disable MAC anti-spoofing
* @hw: pointer to hardware structure
* @enable: enable or disable switch for anti-spoofing
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-12 23:48:26 +0000