/*******************************************************************************
Intel 10 Gigabit PCI Express Linux driver
- Copyright(c) 1999 - 2007 Intel Corporation.
+ Copyright(c) 1999 - 2010 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,
the file called "COPYING".
Contact Information:
- Linux NICS <linux.nics@intel.com>
e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/sched.h>
+#include <linux/list.h>
+#include <linux/netdevice.h>
+#include "ixgbe.h"
#include "ixgbe_common.h"
#include "ixgbe_phy.h"
-static s32 ixgbe_clear_hw_cntrs(struct ixgbe_hw *hw);
-
static s32 ixgbe_poll_eeprom_eerd_done(struct ixgbe_hw *hw);
+static s32 ixgbe_acquire_eeprom(struct ixgbe_hw *hw);
static s32 ixgbe_get_eeprom_semaphore(struct ixgbe_hw *hw);
static void ixgbe_release_eeprom_semaphore(struct ixgbe_hw *hw);
+static s32 ixgbe_ready_eeprom(struct ixgbe_hw *hw);
+static void ixgbe_standby_eeprom(struct ixgbe_hw *hw);
+static void ixgbe_shift_out_eeprom_bits(struct ixgbe_hw *hw, u16 data,
+ u16 count);
+static u16 ixgbe_shift_in_eeprom_bits(struct ixgbe_hw *hw, u16 count);
+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 u16 ixgbe_calc_eeprom_checksum(struct ixgbe_hw *hw);
-static s32 ixgbe_clear_vfta(struct ixgbe_hw *hw);
-static s32 ixgbe_init_rx_addrs(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_mc_addr(struct ixgbe_hw *hw, u8 *mc_addr);
+static void ixgbe_add_uc_addr(struct ixgbe_hw *hw, u8 *addr, u32 vmdq);
+static s32 ixgbe_setup_fc(struct ixgbe_hw *hw, s32 packetbuf_num);
/**
- * ixgbe_start_hw - Prepare hardware for TX/RX
+ * ixgbe_start_hw_generic - Prepare hardware for Tx/Rx
* @hw: pointer to hardware structure
*
* Starts the hardware by filling the bus info structure and media type, clears
* table, VLAN filter table, calls routine to set up link and flow control
* settings, and leaves transmit and receive units disabled and uninitialized
**/
-s32 ixgbe_start_hw(struct ixgbe_hw *hw)
+s32 ixgbe_start_hw_generic(struct ixgbe_hw *hw)
{
u32 ctrl_ext;
hw->phy.media_type = hw->mac.ops.get_media_type(hw);
/* Identify the PHY */
- ixgbe_identify_phy(hw);
-
- /*
- * Store MAC address from RAR0, clear receive address registers, and
- * clear the multicast table
- */
- ixgbe_init_rx_addrs(hw);
+ hw->phy.ops.identify(hw);
/* Clear the VLAN filter table */
- ixgbe_clear_vfta(hw);
-
- /* Set up link */
- hw->mac.ops.setup_link(hw);
+ hw->mac.ops.clear_vfta(hw);
/* Clear statistics registers */
- ixgbe_clear_hw_cntrs(hw);
+ hw->mac.ops.clear_hw_cntrs(hw);
/* Set No Snoop Disable */
ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT);
IXGBE_WRITE_REG(hw, IXGBE_CTRL_EXT, ctrl_ext);
IXGBE_WRITE_FLUSH(hw);
+ /* Setup flow control */
+ ixgbe_setup_fc(hw, 0);
+
/* Clear adapter stopped flag */
hw->adapter_stopped = false;
}
/**
- * ixgbe_init_hw - Generic hardware initialization
+ * ixgbe_init_hw_generic - Generic hardware initialization
* @hw: pointer to hardware structure
*
- * Initialize the hardware by reseting the hardware, filling the bus info
+ * Initialize the hardware by resetting the hardware, filling the bus info
* structure and media type, clears all on chip counters, initializes receive
* address registers, multicast table, VLAN filter table, calls routine to set
* up link and flow control settings, and leaves transmit and receive units
* disabled and uninitialized
**/
-s32 ixgbe_init_hw(struct ixgbe_hw *hw)
+s32 ixgbe_init_hw_generic(struct ixgbe_hw *hw)
{
+ s32 status;
+
/* Reset the hardware */
- hw->mac.ops.reset(hw);
+ status = hw->mac.ops.reset_hw(hw);
- /* Start the HW */
- ixgbe_start_hw(hw);
+ if (status == 0) {
+ /* Start the HW */
+ status = hw->mac.ops.start_hw(hw);
+ }
- return 0;
+ return status;
}
/**
- * ixgbe_clear_hw_cntrs - Generic clear hardware counters
+ * ixgbe_clear_hw_cntrs_generic - Generic clear hardware counters
* @hw: pointer to hardware structure
*
* Clears all hardware statistics counters by reading them from the hardware
* Statistics counters are clear on read.
**/
-static s32 ixgbe_clear_hw_cntrs(struct ixgbe_hw *hw)
+s32 ixgbe_clear_hw_cntrs_generic(struct ixgbe_hw *hw)
{
u16 i = 0;
}
/**
- * ixgbe_get_mac_addr - Generic get MAC address
+ * ixgbe_read_pba_num_generic - Reads part number from EEPROM
+ * @hw: pointer to hardware structure
+ * @pba_num: stores the part number from the EEPROM
+ *
+ * Reads the part number from the EEPROM.
+ **/
+s32 ixgbe_read_pba_num_generic(struct ixgbe_hw *hw, u32 *pba_num)
+{
+ s32 ret_val;
+ u16 data;
+
+ ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM0_PTR, &data);
+ if (ret_val) {
+ hw_dbg(hw, "NVM Read Error\n");
+ return ret_val;
+ }
+ *pba_num = (u32)(data << 16);
+
+ ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM1_PTR, &data);
+ if (ret_val) {
+ hw_dbg(hw, "NVM Read Error\n");
+ return ret_val;
+ }
+ *pba_num |= data;
+
+ return 0;
+}
+
+/**
+ * ixgbe_get_mac_addr_generic - Generic get MAC address
* @hw: pointer to hardware structure
* @mac_addr: Adapter MAC address
*
* A reset of the adapter must be performed prior to calling this function
* in order for the MAC address to have been loaded from the EEPROM into RAR0
**/
-s32 ixgbe_get_mac_addr(struct ixgbe_hw *hw, u8 *mac_addr)
+s32 ixgbe_get_mac_addr_generic(struct ixgbe_hw *hw, u8 *mac_addr)
{
u32 rar_high;
u32 rar_low;
return 0;
}
-s32 ixgbe_read_part_num(struct ixgbe_hw *hw, u32 *part_num)
+/**
+ * ixgbe_get_bus_info_generic - Generic set PCI bus info
+ * @hw: pointer to hardware structure
+ *
+ * Sets the PCI bus info (speed, width, type) within the ixgbe_hw structure
+ **/
+s32 ixgbe_get_bus_info_generic(struct ixgbe_hw *hw)
{
- s32 ret_val;
- u16 data;
+ struct ixgbe_adapter *adapter = hw->back;
+ struct ixgbe_mac_info *mac = &hw->mac;
+ u16 link_status;
- ret_val = ixgbe_read_eeprom(hw, IXGBE_PBANUM0_PTR, &data);
- if (ret_val) {
- hw_dbg(hw, "NVM Read Error\n");
- return ret_val;
+ hw->bus.type = ixgbe_bus_type_pci_express;
+
+ /* Get the negotiated link width and speed from PCI config space */
+ pci_read_config_word(adapter->pdev, IXGBE_PCI_LINK_STATUS,
+ &link_status);
+
+ switch (link_status & IXGBE_PCI_LINK_WIDTH) {
+ case IXGBE_PCI_LINK_WIDTH_1:
+ hw->bus.width = ixgbe_bus_width_pcie_x1;
+ break;
+ case IXGBE_PCI_LINK_WIDTH_2:
+ hw->bus.width = ixgbe_bus_width_pcie_x2;
+ break;
+ case IXGBE_PCI_LINK_WIDTH_4:
+ hw->bus.width = ixgbe_bus_width_pcie_x4;
+ break;
+ case IXGBE_PCI_LINK_WIDTH_8:
+ hw->bus.width = ixgbe_bus_width_pcie_x8;
+ break;
+ default:
+ hw->bus.width = ixgbe_bus_width_unknown;
+ break;
}
- *part_num = (u32)(data << 16);
- ret_val = ixgbe_read_eeprom(hw, IXGBE_PBANUM1_PTR, &data);
- if (ret_val) {
- hw_dbg(hw, "NVM Read Error\n");
- return ret_val;
+ switch (link_status & IXGBE_PCI_LINK_SPEED) {
+ case IXGBE_PCI_LINK_SPEED_2500:
+ hw->bus.speed = ixgbe_bus_speed_2500;
+ break;
+ case IXGBE_PCI_LINK_SPEED_5000:
+ hw->bus.speed = ixgbe_bus_speed_5000;
+ break;
+ default:
+ hw->bus.speed = ixgbe_bus_speed_unknown;
+ break;
}
- *part_num |= data;
+
+ mac->ops.set_lan_id(hw);
return 0;
}
/**
- * ixgbe_stop_adapter - Generic stop TX/RX units
+ * ixgbe_set_lan_id_multi_port_pcie - Set LAN id for PCIe multiple port devices
+ * @hw: pointer to the HW structure
+ *
+ * Determines the LAN function id by reading memory-mapped registers
+ * and swaps the port value if requested.
+ **/
+void ixgbe_set_lan_id_multi_port_pcie(struct ixgbe_hw *hw)
+{
+ struct ixgbe_bus_info *bus = &hw->bus;
+ u32 reg;
+
+ reg = IXGBE_READ_REG(hw, IXGBE_STATUS);
+ bus->func = (reg & IXGBE_STATUS_LAN_ID) >> IXGBE_STATUS_LAN_ID_SHIFT;
+ bus->lan_id = bus->func;
+
+ /* check for a port swap */
+ reg = IXGBE_READ_REG(hw, IXGBE_FACTPS);
+ if (reg & IXGBE_FACTPS_LFS)
+ bus->func ^= 0x1;
+}
+
+/**
+ * ixgbe_stop_adapter_generic - Generic stop Tx/Rx units
* @hw: pointer to hardware structure
*
* Sets the adapter_stopped flag within ixgbe_hw struct. Clears interrupts,
* the shared code and drivers to determine if the adapter is in a stopped
* state and should not touch the hardware.
**/
-s32 ixgbe_stop_adapter(struct ixgbe_hw *hw)
+s32 ixgbe_stop_adapter_generic(struct ixgbe_hw *hw)
{
u32 number_of_queues;
u32 reg_val;
reg_val = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
reg_val &= ~(IXGBE_RXCTRL_RXEN);
IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, reg_val);
+ IXGBE_WRITE_FLUSH(hw);
msleep(2);
/* Clear interrupt mask to stop from interrupts being generated */
IXGBE_READ_REG(hw, IXGBE_EICR);
/* Disable the transmit unit. Each queue must be disabled. */
- number_of_queues = hw->mac.num_tx_queues;
+ number_of_queues = hw->mac.max_tx_queues;
for (i = 0; i < number_of_queues; i++) {
reg_val = IXGBE_READ_REG(hw, IXGBE_TXDCTL(i));
if (reg_val & IXGBE_TXDCTL_ENABLE) {
}
}
+ /*
+ * 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");
+
return 0;
}
/**
- * ixgbe_led_on - Turns on the software controllable LEDs.
+ * ixgbe_led_on_generic - Turns on the software controllable LEDs.
* @hw: pointer to hardware structure
* @index: led number to turn on
**/
-s32 ixgbe_led_on(struct ixgbe_hw *hw, u32 index)
+s32 ixgbe_led_on_generic(struct ixgbe_hw *hw, u32 index)
{
u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
}
/**
- * ixgbe_led_off - Turns off the software controllable LEDs.
+ * ixgbe_led_off_generic - Turns off the software controllable LEDs.
* @hw: pointer to hardware structure
* @index: led number to turn off
**/
-s32 ixgbe_led_off(struct ixgbe_hw *hw, u32 index)
+s32 ixgbe_led_off_generic(struct ixgbe_hw *hw, u32 index)
{
u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
return 0;
}
-
/**
- * ixgbe_init_eeprom - Initialize EEPROM params
+ * ixgbe_init_eeprom_params_generic - Initialize EEPROM params
* @hw: pointer to hardware structure
*
* Initializes the EEPROM parameters ixgbe_eeprom_info within the
* ixgbe_hw struct in order to set up EEPROM access.
**/
-s32 ixgbe_init_eeprom(struct ixgbe_hw *hw)
+s32 ixgbe_init_eeprom_params_generic(struct ixgbe_hw *hw)
{
struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
u32 eec;
if (eeprom->type == ixgbe_eeprom_uninitialized) {
eeprom->type = ixgbe_eeprom_none;
+ /* Set default semaphore delay to 10ms which is a well
+ * tested value */
+ eeprom->semaphore_delay = 10;
/*
* Check for EEPROM present first.
}
/**
- * ixgbe_read_eeprom - Read EEPROM word using EERD
+ * ixgbe_write_eeprom_generic - Writes 16 bit value to EEPROM
+ * @hw: pointer to hardware structure
+ * @offset: offset within the EEPROM to be written to
+ * @data: 16 bit word to be written to the EEPROM
+ *
+ * If ixgbe_eeprom_update_checksum is not called after this function, the
+ * EEPROM will most likely contain an invalid checksum.
+ **/
+s32 ixgbe_write_eeprom_generic(struct ixgbe_hw *hw, u16 offset, u16 data)
+{
+ s32 status;
+ u8 write_opcode = IXGBE_EEPROM_WRITE_OPCODE_SPI;
+
+ hw->eeprom.ops.init_params(hw);
+
+ if (offset >= hw->eeprom.word_size) {
+ status = IXGBE_ERR_EEPROM;
+ goto out;
+ }
+
+ /* Prepare the EEPROM for writing */
+ status = ixgbe_acquire_eeprom(hw);
+
+ if (status == 0) {
+ if (ixgbe_ready_eeprom(hw) != 0) {
+ ixgbe_release_eeprom(hw);
+ status = IXGBE_ERR_EEPROM;
+ }
+ }
+
+ if (status == 0) {
+ ixgbe_standby_eeprom(hw);
+
+ /* Send the WRITE ENABLE command (8 bit opcode ) */
+ ixgbe_shift_out_eeprom_bits(hw, IXGBE_EEPROM_WREN_OPCODE_SPI,
+ IXGBE_EEPROM_OPCODE_BITS);
+
+ ixgbe_standby_eeprom(hw);
+
+ /*
+ * Some SPI eeproms use the 8th address bit embedded in the
+ * opcode
+ */
+ if ((hw->eeprom.address_bits == 8) && (offset >= 128))
+ write_opcode |= IXGBE_EEPROM_A8_OPCODE_SPI;
+
+ /* Send the Write command (8-bit opcode + addr) */
+ ixgbe_shift_out_eeprom_bits(hw, write_opcode,
+ IXGBE_EEPROM_OPCODE_BITS);
+ ixgbe_shift_out_eeprom_bits(hw, (u16)(offset*2),
+ hw->eeprom.address_bits);
+
+ /* Send the data */
+ data = (data >> 8) | (data << 8);
+ 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);
+ }
+
+out:
+ return status;
+}
+
+/**
+ * ixgbe_read_eeprom_bit_bang_generic - Read EEPROM word using bit-bang
+ * @hw: pointer to hardware structure
+ * @offset: offset within the EEPROM to be read
+ * @data: read 16 bit value from EEPROM
+ *
+ * Reads 16 bit value from EEPROM through bit-bang method
+ **/
+s32 ixgbe_read_eeprom_bit_bang_generic(struct ixgbe_hw *hw, u16 offset,
+ u16 *data)
+{
+ s32 status;
+ u16 word_in;
+ u8 read_opcode = IXGBE_EEPROM_READ_OPCODE_SPI;
+
+ hw->eeprom.ops.init_params(hw);
+
+ if (offset >= hw->eeprom.word_size) {
+ status = IXGBE_ERR_EEPROM;
+ goto out;
+ }
+
+ /* Prepare the EEPROM for reading */
+ status = ixgbe_acquire_eeprom(hw);
+
+ if (status == 0) {
+ if (ixgbe_ready_eeprom(hw) != 0) {
+ ixgbe_release_eeprom(hw);
+ status = IXGBE_ERR_EEPROM;
+ }
+ }
+
+ if (status == 0) {
+ ixgbe_standby_eeprom(hw);
+
+ /*
+ * Some SPI eeproms use the 8th address bit embedded in the
+ * opcode
+ */
+ if ((hw->eeprom.address_bits == 8) && (offset >= 128))
+ read_opcode |= IXGBE_EEPROM_A8_OPCODE_SPI;
+
+ /* Send the READ command (opcode + addr) */
+ ixgbe_shift_out_eeprom_bits(hw, read_opcode,
+ IXGBE_EEPROM_OPCODE_BITS);
+ ixgbe_shift_out_eeprom_bits(hw, (u16)(offset*2),
+ hw->eeprom.address_bits);
+
+ /* Read the data. */
+ word_in = ixgbe_shift_in_eeprom_bits(hw, 16);
+ *data = (word_in >> 8) | (word_in << 8);
+
+ /* End this read operation */
+ ixgbe_release_eeprom(hw);
+ }
+
+out:
+ return status;
+}
+
+/**
+ * ixgbe_read_eeprom_generic - Read EEPROM word using EERD
* @hw: pointer to hardware structure
* @offset: offset of word in the EEPROM to read
* @data: word read from the EEPROM
*
* Reads a 16 bit word from the EEPROM using the EERD register.
**/
-s32 ixgbe_read_eeprom(struct ixgbe_hw *hw, u16 offset, u16 *data)
+s32 ixgbe_read_eeprom_generic(struct ixgbe_hw *hw, u16 offset, u16 *data)
{
u32 eerd;
s32 status;
+ hw->eeprom.ops.init_params(hw);
+
+ if (offset >= hw->eeprom.word_size) {
+ status = IXGBE_ERR_EEPROM;
+ goto out;
+ }
+
eerd = (offset << IXGBE_EEPROM_READ_ADDR_SHIFT) +
IXGBE_EEPROM_READ_REG_START;
if (status == 0)
*data = (IXGBE_READ_REG(hw, IXGBE_EERD) >>
- IXGBE_EEPROM_READ_REG_DATA);
+ IXGBE_EEPROM_READ_REG_DATA);
else
hw_dbg(hw, "Eeprom read timed out\n");
+out:
return status;
}
}
/**
+ * ixgbe_acquire_eeprom - Acquire EEPROM using bit-bang
+ * @hw: pointer to hardware structure
+ *
+ * Prepares EEPROM for access using bit-bang method. This function should
+ * be called before issuing a command to the EEPROM.
+ **/
+static s32 ixgbe_acquire_eeprom(struct ixgbe_hw *hw)
+{
+ s32 status = 0;
+ u32 eec = 0;
+ u32 i;
+
+ if (ixgbe_acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) != 0)
+ status = IXGBE_ERR_SWFW_SYNC;
+
+ if (status == 0) {
+ eec = IXGBE_READ_REG(hw, IXGBE_EEC);
+
+ /* Request EEPROM Access */
+ eec |= IXGBE_EEC_REQ;
+ IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
+
+ for (i = 0; i < IXGBE_EEPROM_GRANT_ATTEMPTS; i++) {
+ eec = IXGBE_READ_REG(hw, IXGBE_EEC);
+ if (eec & IXGBE_EEC_GNT)
+ break;
+ udelay(5);
+ }
+
+ /* Release if grant not acquired */
+ if (!(eec & IXGBE_EEC_GNT)) {
+ eec &= ~IXGBE_EEC_REQ;
+ 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);
+ 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);
+ }
+ return status;
+}
+
+/**
* ixgbe_get_eeprom_semaphore - Get hardware semaphore
* @hw: pointer to hardware structure
*
*/
if (i >= timeout) {
hw_dbg(hw, "Driver can't access the Eeprom - Semaphore "
- "not granted.\n");
+ "not granted.\n");
ixgbe_release_eeprom_semaphore(hw);
status = IXGBE_ERR_EEPROM;
}
}
/**
- * ixgbe_calc_eeprom_checksum - Calculates and returns the checksum
+ * ixgbe_ready_eeprom - Polls for EEPROM ready
* @hw: pointer to hardware structure
**/
-static u16 ixgbe_calc_eeprom_checksum(struct ixgbe_hw *hw)
+static s32 ixgbe_ready_eeprom(struct ixgbe_hw *hw)
{
+ s32 status = 0;
u16 i;
- u16 j;
- u16 checksum = 0;
- u16 length = 0;
- u16 pointer = 0;
- u16 word = 0;
+ u8 spi_stat_reg;
- /* Include 0x0-0x3F in the checksum */
- for (i = 0; i < IXGBE_EEPROM_CHECKSUM; i++) {
- if (ixgbe_read_eeprom(hw, i, &word) != 0) {
- hw_dbg(hw, "EEPROM read failed\n");
+ /*
+ * Read "Status Register" repeatedly until the LSB is cleared. The
+ * EEPROM will signal that the command has been completed by clearing
+ * bit 0 of the internal status register. If it's not cleared within
+ * 5 milliseconds, then error out.
+ */
+ for (i = 0; i < IXGBE_EEPROM_MAX_RETRY_SPI; i += 5) {
+ ixgbe_shift_out_eeprom_bits(hw, IXGBE_EEPROM_RDSR_OPCODE_SPI,
+ IXGBE_EEPROM_OPCODE_BITS);
+ spi_stat_reg = (u8)ixgbe_shift_in_eeprom_bits(hw, 8);
+ if (!(spi_stat_reg & IXGBE_EEPROM_STATUS_RDY_SPI))
break;
- }
- checksum += word;
- }
- /* Include all data from pointers except for the fw pointer */
- for (i = IXGBE_PCIE_ANALOG_PTR; i < IXGBE_FW_PTR; i++) {
- ixgbe_read_eeprom(hw, i, &pointer);
-
- /* Make sure the pointer seems valid */
- if (pointer != 0xFFFF && pointer != 0) {
- ixgbe_read_eeprom(hw, pointer, &length);
+ udelay(5);
+ ixgbe_standby_eeprom(hw);
+ };
- if (length != 0xFFFF && length != 0) {
- for (j = pointer+1; j <= pointer+length; j++) {
- ixgbe_read_eeprom(hw, j, &word);
- checksum += word;
- }
- }
- }
+ /*
+ * On some parts, SPI write time could vary from 0-20mSec on 3.3V
+ * devices (and only 0-5mSec on 5V devices)
+ */
+ if (i >= IXGBE_EEPROM_MAX_RETRY_SPI) {
+ hw_dbg(hw, "SPI EEPROM Status error\n");
+ status = IXGBE_ERR_EEPROM;
}
- checksum = (u16)IXGBE_EEPROM_SUM - checksum;
+ return status;
+}
- return checksum;
+/**
+ * ixgbe_standby_eeprom - Returns EEPROM to a "standby" state
+ * @hw: pointer to hardware structure
+ **/
+static void ixgbe_standby_eeprom(struct ixgbe_hw *hw)
+{
+ u32 eec;
+
+ eec = IXGBE_READ_REG(hw, IXGBE_EEC);
+
+ /* Toggle CS to flush commands */
+ eec |= IXGBE_EEC_CS;
+ IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
+ IXGBE_WRITE_FLUSH(hw);
+ udelay(1);
+ eec &= ~IXGBE_EEC_CS;
+ IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
+ IXGBE_WRITE_FLUSH(hw);
+ udelay(1);
}
/**
- * ixgbe_validate_eeprom_checksum - Validate EEPROM checksum
+ * ixgbe_shift_out_eeprom_bits - Shift data bits out to the EEPROM.
* @hw: pointer to hardware structure
- * @checksum_val: calculated checksum
- *
- * Performs checksum calculation and validates the EEPROM checksum. If the
- * caller does not need checksum_val, the value can be NULL.
+ * @data: data to send to the EEPROM
+ * @count: number of bits to shift out
**/
-s32 ixgbe_validate_eeprom_checksum(struct ixgbe_hw *hw, u16 *checksum_val)
+static void ixgbe_shift_out_eeprom_bits(struct ixgbe_hw *hw, u16 data,
+ u16 count)
{
- s32 status;
- u16 checksum;
- u16 read_checksum = 0;
+ u32 eec;
+ u32 mask;
+ u32 i;
+
+ eec = IXGBE_READ_REG(hw, IXGBE_EEC);
/*
- * Read the first word from the EEPROM. If this times out or fails, do
- * not continue or we could be in for a very long wait while every
- * EEPROM read fails
+ * Mask is used to shift "count" bits of "data" out to the EEPROM
+ * one bit at a time. Determine the starting bit based on count
*/
- status = ixgbe_read_eeprom(hw, 0, &checksum);
-
- if (status == 0) {
- checksum = ixgbe_calc_eeprom_checksum(hw);
-
- ixgbe_read_eeprom(hw, IXGBE_EEPROM_CHECKSUM, &read_checksum);
+ mask = 0x01 << (count - 1);
+ for (i = 0; i < count; i++) {
/*
- * Verify read checksum from EEPROM is the same as
- * calculated checksum
+ * A "1" is shifted out to the EEPROM by setting bit "DI" to a
+ * "1", and then raising and then lowering the clock (the SK
+ * bit controls the clock input to the EEPROM). A "0" is
+ * shifted out to the EEPROM by setting "DI" to "0" and then
+ * raising and then lowering the clock.
*/
- if (read_checksum != checksum)
- status = IXGBE_ERR_EEPROM_CHECKSUM;
+ if (data & mask)
+ eec |= IXGBE_EEC_DI;
+ else
+ eec &= ~IXGBE_EEC_DI;
- /* If the user cares, return the calculated checksum */
- if (checksum_val)
- *checksum_val = checksum;
- } else {
- hw_dbg(hw, "EEPROM read failed\n");
- }
+ IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
+ IXGBE_WRITE_FLUSH(hw);
- return status;
-}
+ udelay(1);
-/**
- * ixgbe_validate_mac_addr - Validate MAC address
- * @mac_addr: pointer to MAC address.
- *
- * Tests a MAC address to ensure it is a valid Individual Address
- **/
-s32 ixgbe_validate_mac_addr(u8 *mac_addr)
-{
- s32 status = 0;
+ ixgbe_raise_eeprom_clk(hw, &eec);
+ ixgbe_lower_eeprom_clk(hw, &eec);
- /* Make sure it is not a multicast address */
- if (IXGBE_IS_MULTICAST(mac_addr))
- status = IXGBE_ERR_INVALID_MAC_ADDR;
- /* Not a broadcast address */
- else if (IXGBE_IS_BROADCAST(mac_addr))
- status = IXGBE_ERR_INVALID_MAC_ADDR;
- /* Reject the zero address */
- else if (mac_addr[0] == 0 && mac_addr[1] == 0 && mac_addr[2] == 0 &&
- mac_addr[3] == 0 && mac_addr[4] == 0 && mac_addr[5] == 0)
- status = IXGBE_ERR_INVALID_MAC_ADDR;
+ /*
+ * Shift mask to signify next bit of data to shift in to the
+ * EEPROM
+ */
+ mask = mask >> 1;
+ };
- return status;
+ /* We leave the "DI" bit set to "0" when we leave this routine. */
+ eec &= ~IXGBE_EEC_DI;
+ IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
+ IXGBE_WRITE_FLUSH(hw);
}
/**
- * ixgbe_set_rar - Set RX address register
+ * ixgbe_shift_in_eeprom_bits - Shift data bits in from the EEPROM
* @hw: pointer to hardware structure
- * @addr: Address to put into receive address register
- * @index: Receive address register to write
- * @vind: Vind to set RAR to
- * @enable_addr: set flag that address is active
- *
- * Puts an ethernet address into a receive address register.
**/
-s32 ixgbe_set_rar(struct ixgbe_hw *hw, u32 index, u8 *addr, u32 vind,
- u32 enable_addr)
+static u16 ixgbe_shift_in_eeprom_bits(struct ixgbe_hw *hw, u16 count)
{
- u32 rar_low, rar_high;
+ u32 eec;
+ u32 i;
+ u16 data = 0;
/*
- * HW expects these in little endian so we reverse the byte order from
- * network order (big endian) to little endian
+ * In order to read a register from the EEPROM, we need to shift
+ * 'count' bits in from the EEPROM. Bits are "shifted in" by raising
+ * the clock input to the EEPROM (setting the SK bit), and then reading
+ * the value of the "DO" bit. During this "shifting in" process the
+ * "DI" bit should always be clear.
*/
- rar_low = ((u32)addr[0] |
- ((u32)addr[1] << 8) |
- ((u32)addr[2] << 16) |
- ((u32)addr[3] << 24));
+ eec = IXGBE_READ_REG(hw, IXGBE_EEC);
- rar_high = ((u32)addr[4] |
- ((u32)addr[5] << 8) |
- ((vind << IXGBE_RAH_VIND_SHIFT) & IXGBE_RAH_VIND_MASK));
+ eec &= ~(IXGBE_EEC_DO | IXGBE_EEC_DI);
- if (enable_addr != 0)
- rar_high |= IXGBE_RAH_AV;
+ for (i = 0; i < count; i++) {
+ data = data << 1;
+ ixgbe_raise_eeprom_clk(hw, &eec);
- IXGBE_WRITE_REG(hw, IXGBE_RAL(index), rar_low);
- IXGBE_WRITE_REG(hw, IXGBE_RAH(index), rar_high);
+ eec = IXGBE_READ_REG(hw, IXGBE_EEC);
+
+ eec &= ~(IXGBE_EEC_DI);
+ if (eec & IXGBE_EEC_DO)
+ data |= 1;
+
+ ixgbe_lower_eeprom_clk(hw, &eec);
+ }
+
+ return data;
+}
+
+/**
+ * ixgbe_raise_eeprom_clk - Raises the EEPROM's clock input.
+ * @hw: pointer to hardware structure
+ * @eec: EEC register's current value
+ **/
+static void ixgbe_raise_eeprom_clk(struct ixgbe_hw *hw, u32 *eec)
+{
+ /*
+ * Raise the clock input to the EEPROM
+ * (setting the SK bit), then delay
+ */
+ *eec = *eec | IXGBE_EEC_SK;
+ IXGBE_WRITE_REG(hw, IXGBE_EEC, *eec);
+ IXGBE_WRITE_FLUSH(hw);
+ udelay(1);
+}
+
+/**
+ * ixgbe_lower_eeprom_clk - Lowers the EEPROM's clock input.
+ * @hw: pointer to hardware structure
+ * @eecd: EECD's current value
+ **/
+static void ixgbe_lower_eeprom_clk(struct ixgbe_hw *hw, u32 *eec)
+{
+ /*
+ * Lower the clock input to the EEPROM (clearing the SK bit), then
+ * delay
+ */
+ *eec = *eec & ~IXGBE_EEC_SK;
+ IXGBE_WRITE_REG(hw, IXGBE_EEC, *eec);
+ IXGBE_WRITE_FLUSH(hw);
+ udelay(1);
+}
+
+/**
+ * ixgbe_release_eeprom - Release EEPROM, release semaphores
+ * @hw: pointer to hardware structure
+ **/
+static void ixgbe_release_eeprom(struct ixgbe_hw *hw)
+{
+ u32 eec;
+
+ eec = IXGBE_READ_REG(hw, IXGBE_EEC);
+
+ eec |= IXGBE_EEC_CS; /* Pull CS high */
+ eec &= ~IXGBE_EEC_SK; /* Lower SCK */
+
+ IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
+ IXGBE_WRITE_FLUSH(hw);
+
+ udelay(1);
+
+ /* Stop requesting EEPROM access */
+ eec &= ~IXGBE_EEC_REQ;
+ IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
+
+ ixgbe_release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
+}
+
+/**
+ * ixgbe_calc_eeprom_checksum - Calculates and returns the checksum
+ * @hw: pointer to hardware structure
+ **/
+static u16 ixgbe_calc_eeprom_checksum(struct ixgbe_hw *hw)
+{
+ u16 i;
+ u16 j;
+ u16 checksum = 0;
+ u16 length = 0;
+ u16 pointer = 0;
+ u16 word = 0;
+
+ /* Include 0x0-0x3F in the checksum */
+ for (i = 0; i < IXGBE_EEPROM_CHECKSUM; i++) {
+ if (hw->eeprom.ops.read(hw, i, &word) != 0) {
+ hw_dbg(hw, "EEPROM read failed\n");
+ break;
+ }
+ checksum += word;
+ }
+
+ /* Include all data from pointers except for the fw pointer */
+ for (i = IXGBE_PCIE_ANALOG_PTR; i < IXGBE_FW_PTR; i++) {
+ hw->eeprom.ops.read(hw, i, &pointer);
+
+ /* Make sure the pointer seems valid */
+ if (pointer != 0xFFFF && pointer != 0) {
+ hw->eeprom.ops.read(hw, pointer, &length);
+
+ if (length != 0xFFFF && length != 0) {
+ for (j = pointer+1; j <= pointer+length; j++) {
+ hw->eeprom.ops.read(hw, j, &word);
+ checksum += word;
+ }
+ }
+ }
+ }
+
+ checksum = (u16)IXGBE_EEPROM_SUM - checksum;
+
+ return checksum;
+}
+
+/**
+ * ixgbe_validate_eeprom_checksum_generic - Validate EEPROM checksum
+ * @hw: pointer to hardware structure
+ * @checksum_val: calculated checksum
+ *
+ * Performs checksum calculation and validates the EEPROM checksum. If the
+ * caller does not need checksum_val, the value can be NULL.
+ **/
+s32 ixgbe_validate_eeprom_checksum_generic(struct ixgbe_hw *hw,
+ u16 *checksum_val)
+{
+ s32 status;
+ u16 checksum;
+ u16 read_checksum = 0;
+
+ /*
+ * Read the first word from the EEPROM. If this times out or fails, do
+ * not continue or we could be in for a very long wait while every
+ * EEPROM read fails
+ */
+ status = hw->eeprom.ops.read(hw, 0, &checksum);
+
+ if (status == 0) {
+ checksum = ixgbe_calc_eeprom_checksum(hw);
+
+ hw->eeprom.ops.read(hw, IXGBE_EEPROM_CHECKSUM, &read_checksum);
+
+ /*
+ * Verify read checksum from EEPROM is the same as
+ * calculated checksum
+ */
+ if (read_checksum != checksum)
+ status = IXGBE_ERR_EEPROM_CHECKSUM;
+
+ /* If the user cares, return the calculated checksum */
+ if (checksum_val)
+ *checksum_val = checksum;
+ } else {
+ hw_dbg(hw, "EEPROM read failed\n");
+ }
+
+ return status;
+}
+
+/**
+ * ixgbe_update_eeprom_checksum_generic - Updates the EEPROM checksum
+ * @hw: pointer to hardware structure
+ **/
+s32 ixgbe_update_eeprom_checksum_generic(struct ixgbe_hw *hw)
+{
+ s32 status;
+ u16 checksum;
+
+ /*
+ * Read the first word from the EEPROM. If this times out or fails, do
+ * not continue or we could be in for a very long wait while every
+ * EEPROM read fails
+ */
+ status = hw->eeprom.ops.read(hw, 0, &checksum);
+
+ if (status == 0) {
+ checksum = ixgbe_calc_eeprom_checksum(hw);
+ status = hw->eeprom.ops.write(hw, IXGBE_EEPROM_CHECKSUM,
+ checksum);
+ } else {
+ hw_dbg(hw, "EEPROM read failed\n");
+ }
+
+ return status;
+}
+
+/**
+ * ixgbe_validate_mac_addr - Validate MAC address
+ * @mac_addr: pointer to MAC address.
+ *
+ * Tests a MAC address to ensure it is a valid Individual Address
+ **/
+s32 ixgbe_validate_mac_addr(u8 *mac_addr)
+{
+ s32 status = 0;
+
+ /* Make sure it is not a multicast address */
+ if (IXGBE_IS_MULTICAST(mac_addr))
+ status = IXGBE_ERR_INVALID_MAC_ADDR;
+ /* Not a broadcast address */
+ else if (IXGBE_IS_BROADCAST(mac_addr))
+ status = IXGBE_ERR_INVALID_MAC_ADDR;
+ /* Reject the zero address */
+ else if (mac_addr[0] == 0 && mac_addr[1] == 0 && mac_addr[2] == 0 &&
+ mac_addr[3] == 0 && mac_addr[4] == 0 && mac_addr[5] == 0)
+ status = IXGBE_ERR_INVALID_MAC_ADDR;
+
+ return status;
+}
+
+/**
+ * ixgbe_set_rar_generic - Set Rx address register
+ * @hw: pointer to hardware structure
+ * @index: Receive address register to write
+ * @addr: Address to put into receive address register
+ * @vmdq: VMDq "set" or "pool" index
+ * @enable_addr: set flag that address is active
+ *
+ * Puts an ethernet address into a receive address register.
+ **/
+s32 ixgbe_set_rar_generic(struct ixgbe_hw *hw, u32 index, u8 *addr, u32 vmdq,
+ u32 enable_addr)
+{
+ u32 rar_low, rar_high;
+ u32 rar_entries = hw->mac.num_rar_entries;
+
+ /* 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));
+
+ 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 0;
}
/**
- * ixgbe_init_rx_addrs - Initializes receive address filters.
+ * ixgbe_clear_rar_generic - Remove Rx address register
+ * @hw: pointer to hardware structure
+ * @index: Receive address register to write
+ *
+ * Clears an ethernet address from a receive address register.
+ **/
+s32 ixgbe_clear_rar_generic(struct ixgbe_hw *hw, u32 index)
+{
+ u32 rar_high;
+ 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 {
+ hw_dbg(hw, "RAR index %d is out of range.\n", index);
+ }
+
+ /* 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;
+
+ rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(index));
+ rar_high |= IXGBE_RAH_AV;
+ 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;
+
+ rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(index));
+ rar_high &= (~IXGBE_RAH_AV);
+ IXGBE_WRITE_REG(hw, IXGBE_RAH(index), rar_high);
+}
+
+/**
+ * ixgbe_init_rx_addrs_generic - Initializes receive address filters.
* @hw: pointer to hardware structure
*
* Places the MAC address in receive address register 0 and clears the rest
- * of the receive addresss registers. Clears the multicast table. Assumes
+ * of the receive address registers. Clears the multicast table. Assumes
* the receiver is in reset when the routine is called.
**/
-static s32 ixgbe_init_rx_addrs(struct ixgbe_hw *hw)
+s32 ixgbe_init_rx_addrs_generic(struct ixgbe_hw *hw)
{
u32 i;
u32 rar_entries = hw->mac.num_rar_entries;
if (ixgbe_validate_mac_addr(hw->mac.addr) ==
IXGBE_ERR_INVALID_MAC_ADDR) {
/* Get the MAC address from the RAR0 for later reference */
- ixgbe_get_mac_addr(hw, hw->mac.addr);
+ hw->mac.ops.get_mac_addr(hw, hw->mac.addr);
- hw_dbg(hw, " Keeping Current RAR0 Addr =%.2X %.2X %.2X ",
- hw->mac.addr[0], hw->mac.addr[1],
- hw->mac.addr[2]);
- hw_dbg(hw, "%.2X %.2X %.2X\n", hw->mac.addr[3],
- hw->mac.addr[4], hw->mac.addr[5]);
+ hw_dbg(hw, " Keeping Current RAR0 Addr =%pM\n", hw->mac.addr);
} else {
/* Setup the receive address. */
hw_dbg(hw, "Overriding MAC Address in RAR[0]\n");
- hw_dbg(hw, " New MAC Addr =%.2X %.2X %.2X ",
- hw->mac.addr[0], hw->mac.addr[1],
- hw->mac.addr[2]);
- hw_dbg(hw, "%.2X %.2X %.2X\n", hw->mac.addr[3],
- hw->mac.addr[4], hw->mac.addr[5]);
+ hw_dbg(hw, " New MAC Addr =%pM\n", hw->mac.addr);
- ixgbe_set_rar(hw, 0, hw->mac.addr, 0, IXGBE_RAH_AV);
+ hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0, IXGBE_RAH_AV);
}
+ hw->addr_ctrl.overflow_promisc = 0;
hw->addr_ctrl.rar_used_count = 1;
/* Zero out the other receive addresses. */
- hw_dbg(hw, "Clearing RAR[1-15]\n");
+ hw_dbg(hw, "Clearing RAR[1-%d]\n", rar_entries - 1);
for (i = 1; i < rar_entries; i++) {
IXGBE_WRITE_REG(hw, IXGBE_RAL(i), 0);
IXGBE_WRITE_REG(hw, IXGBE_RAH(i), 0);
for (i = 0; i < hw->mac.mcft_size; i++)
IXGBE_WRITE_REG(hw, IXGBE_MTA(i), 0);
+ if (hw->mac.ops.init_uta_tables)
+ hw->mac.ops.init_uta_tables(hw);
+
return 0;
}
*
* Adds it to unused receive address register or goes into promiscuous mode.
**/
-void ixgbe_add_uc_addr(struct ixgbe_hw *hw, u8 *addr)
+static void ixgbe_add_uc_addr(struct ixgbe_hw *hw, u8 *addr, u32 vmdq)
{
u32 rar_entries = hw->mac.num_rar_entries;
u32 rar;
if (hw->addr_ctrl.rar_used_count < rar_entries) {
rar = hw->addr_ctrl.rar_used_count -
hw->addr_ctrl.mc_addr_in_rar_count;
- ixgbe_set_rar(hw, rar, addr, 0, IXGBE_RAH_AV);
+ 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 {
}
/**
- * ixgbe_update_uc_addr_list - Updates MAC list of secondary addresses
+ * ixgbe_update_uc_addr_list_generic - Updates MAC list of secondary addresses
* @hw: pointer to hardware structure
- * @addr_list: the list of new addresses
- * @addr_count: number of addresses
- * @next: iterator function to walk the address list
+ * @uc_list: the list of new addresses
*
* The given list replaces any existing list. Clears the secondary addrs from
* receive address registers. Uses unused receive address registers for the
* Drivers using secondary unicast addresses must set user_set_promisc when
* manually putting the device into promiscuous mode.
**/
-s32 ixgbe_update_uc_addr_list(struct ixgbe_hw *hw, u8 *addr_list,
- u32 addr_count, ixgbe_mc_addr_itr next)
+s32 ixgbe_update_uc_addr_list_generic(struct ixgbe_hw *hw,
+ struct list_head *uc_list)
{
- u8 *addr;
u32 i;
u32 old_promisc_setting = hw->addr_ctrl.overflow_promisc;
u32 uc_addr_in_use;
u32 fctrl;
- u32 vmdq;
+ 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 -
- hw->addr_ctrl.mc_addr_in_rar_count - 1;
+ 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);
- for (i = 1; i <= uc_addr_in_use; i++) {
- IXGBE_WRITE_REG(hw, IXGBE_RAL(i), 0);
- IXGBE_WRITE_REG(hw, IXGBE_RAH(i), 0);
+ 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 */
- for (i = 0; i < addr_count; i++) {
+ list_for_each_entry(ha, uc_list, list) {
hw_dbg(hw, " Adding the secondary addresses:\n");
- addr = next(hw, &addr_list, &vmdq);
- ixgbe_add_uc_addr(hw, addr);
+ ixgbe_add_uc_addr(hw, ha->addr, 0);
}
if (hw->addr_ctrl.overflow_promisc) {
}
}
- hw_dbg(hw, "ixgbe_update_uc_addr_list Complete\n");
+ hw_dbg(hw, "ixgbe_update_uc_addr_list_generic Complete\n");
return 0;
}
* bit-vector to set in the multicast table. The hardware uses 12 bits, from
* incoming rx multicast addresses, to determine the bit-vector to check in
* the MTA. Which of the 4 combination, of 12-bits, the hardware uses is set
- * by the MO field of the MCSTCTRL. The MO field is set during initalization
+ * by the MO field of the MCSTCTRL. The MO field is set during initialization
* to mc_filter_type.
**/
static s32 ixgbe_mta_vector(struct ixgbe_hw *hw, u8 *mc_addr)
u32 vector = 0;
switch (hw->mac.mc_filter_type) {
- case 0: /* use bits [47:36] of the address */
+ case 0: /* use bits [47:36] of the address */
vector = ((mc_addr[4] >> 4) | (((u16)mc_addr[5]) << 4));
break;
- case 1: /* use bits [46:35] of the address */
+ case 1: /* use bits [46:35] of the address */
vector = ((mc_addr[4] >> 3) | (((u16)mc_addr[5]) << 5));
break;
- case 2: /* use bits [45:34] of the address */
+ case 2: /* use bits [45:34] of the address */
vector = ((mc_addr[4] >> 2) | (((u16)mc_addr[5]) << 6));
break;
- case 3: /* use bits [43:32] of the address */
+ case 3: /* use bits [43:32] of the address */
vector = ((mc_addr[4]) | (((u16)mc_addr[5]) << 8));
break;
- default: /* Invalid mc_filter_type */
+ default: /* Invalid mc_filter_type */
hw_dbg(hw, "MC filter type param set incorrectly\n");
break;
}
}
/**
- * ixgbe_add_mc_addr - Adds a multicast address.
- * @hw: pointer to hardware structure
- * @mc_addr: new multicast address
- *
- * Adds it to unused receive address register or to the multicast table.
- **/
-static void ixgbe_add_mc_addr(struct ixgbe_hw *hw, u8 *mc_addr)
-{
- u32 rar_entries = hw->mac.num_rar_entries;
-
- hw_dbg(hw, " MC Addr =%.2X %.2X %.2X %.2X %.2X %.2X\n",
- mc_addr[0], mc_addr[1], mc_addr[2],
- mc_addr[3], mc_addr[4], mc_addr[5]);
-
- /*
- * Place this multicast address in the RAR if there is room,
- * else put it in the MTA
- */
- if (hw->addr_ctrl.rar_used_count < rar_entries) {
- ixgbe_set_rar(hw, hw->addr_ctrl.rar_used_count,
- mc_addr, 0, IXGBE_RAH_AV);
- hw_dbg(hw, "Added a multicast address to RAR[%d]\n",
- hw->addr_ctrl.rar_used_count);
- hw->addr_ctrl.rar_used_count++;
- hw->addr_ctrl.mc_addr_in_rar_count++;
- } else {
- ixgbe_set_mta(hw, mc_addr);
- }
-
- hw_dbg(hw, "ixgbe_add_mc_addr Complete\n");
-}
-
-/**
- * ixgbe_update_mc_addr_list - Updates MAC list of multicast addresses
+ * ixgbe_update_mc_addr_list_generic - Updates MAC list of multicast addresses
* @hw: pointer to hardware structure
* @mc_addr_list: the list of new multicast addresses
* @mc_addr_count: number of addresses
* @next: iterator function to walk the multicast address list
*
* The given list replaces any existing list. Clears the MC addrs from receive
- * address registers and the multicast table. Uses unsed receive address
+ * address registers and the multicast table. Uses unused receive address
* registers for the first multicast addresses, and hashes the rest into the
* multicast table.
**/
-s32 ixgbe_update_mc_addr_list(struct ixgbe_hw *hw, u8 *mc_addr_list,
- u32 mc_addr_count, ixgbe_mc_addr_itr next)
+s32 ixgbe_update_mc_addr_list_generic(struct ixgbe_hw *hw, u8 *mc_addr_list,
+ u32 mc_addr_count, ixgbe_mc_addr_itr next)
{
u32 i;
- u32 rar_entries = hw->mac.num_rar_entries;
u32 vmdq;
/*
* use.
*/
hw->addr_ctrl.num_mc_addrs = mc_addr_count;
- hw->addr_ctrl.rar_used_count -= hw->addr_ctrl.mc_addr_in_rar_count;
- hw->addr_ctrl.mc_addr_in_rar_count = 0;
hw->addr_ctrl.mta_in_use = 0;
- /* Zero out the other receive addresses. */
- hw_dbg(hw, "Clearing RAR[1-15]\n");
- for (i = hw->addr_ctrl.rar_used_count; i < rar_entries; i++) {
- IXGBE_WRITE_REG(hw, IXGBE_RAL(i), 0);
- IXGBE_WRITE_REG(hw, IXGBE_RAH(i), 0);
- }
-
/* Clear the MTA */
hw_dbg(hw, " Clearing MTA\n");
for (i = 0; i < hw->mac.mcft_size; i++)
/* Add the new addresses */
for (i = 0; i < mc_addr_count; i++) {
hw_dbg(hw, " Adding the multicast addresses:\n");
- ixgbe_add_mc_addr(hw, next(hw, &mc_addr_list, &vmdq));
+ ixgbe_set_mta(hw, next(hw, &mc_addr_list, &vmdq));
}
/* Enable mta */
if (hw->addr_ctrl.mta_in_use > 0)
IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL,
- IXGBE_MCSTCTRL_MFE | hw->mac.mc_filter_type);
+ IXGBE_MCSTCTRL_MFE | hw->mac.mc_filter_type);
- hw_dbg(hw, "ixgbe_update_mc_addr_list Complete\n");
+ hw_dbg(hw, "ixgbe_update_mc_addr_list_generic Complete\n");
return 0;
}
/**
- * ixgbe_clear_vfta - Clear VLAN filter table
+ * ixgbe_enable_mc_generic - Enable multicast address in RAR
* @hw: pointer to hardware structure
*
- * Clears the VLAN filer table, and the VMDq index associated with the filter
+ * Enables multicast address in RAR and the use of the multicast hash table.
**/
-static s32 ixgbe_clear_vfta(struct ixgbe_hw *hw)
+s32 ixgbe_enable_mc_generic(struct ixgbe_hw *hw)
{
- u32 offset;
- u32 vlanbyte;
+ u32 i;
+ u32 rar_entries = hw->mac.num_rar_entries;
+ struct ixgbe_addr_filter_info *a = &hw->addr_ctrl;
- for (offset = 0; offset < hw->mac.vft_size; offset++)
- IXGBE_WRITE_REG(hw, IXGBE_VFTA(offset), 0);
+ 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);
- for (vlanbyte = 0; vlanbyte < 4; vlanbyte++)
- for (offset = 0; offset < hw->mac.vft_size; offset++)
- IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vlanbyte, offset),
- 0);
+ if (a->mta_in_use > 0)
+ IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL, IXGBE_MCSTCTRL_MFE |
+ hw->mac.mc_filter_type);
return 0;
}
/**
- * ixgbe_set_vfta - Set VLAN filter table
+ * ixgbe_disable_mc_generic - Disable multicast address in RAR
* @hw: pointer to hardware structure
- * @vlan: VLAN id to write to VLAN filter
- * @vind: VMDq output index that maps queue to VLAN id in VFTA
- * @vlan_on: boolean flag to turn on/off VLAN in VFTA
*
- * Turn on/off specified VLAN in the VLAN filter table.
+ * Disables multicast address in RAR and the use of the multicast hash table.
**/
-s32 ixgbe_set_vfta(struct ixgbe_hw *hw, u32 vlan, u32 vind,
- bool vlan_on)
+s32 ixgbe_disable_mc_generic(struct ixgbe_hw *hw)
{
- u32 VftaIndex;
- u32 BitOffset;
- u32 VftaReg;
- u32 VftaByte;
-
- /* Determine 32-bit word position in array */
- VftaIndex = (vlan >> 5) & 0x7F; /* upper seven bits */
-
- /* Determine the location of the (VMD) queue index */
- VftaByte = ((vlan >> 3) & 0x03); /* bits (4:3) indicating byte array */
- BitOffset = (vlan & 0x7) << 2; /* lower 3 bits indicate nibble */
-
- /* Set the nibble for VMD queue index */
- VftaReg = IXGBE_READ_REG(hw, IXGBE_VFTAVIND(VftaByte, VftaIndex));
- VftaReg &= (~(0x0F << BitOffset));
- VftaReg |= (vind << BitOffset);
- IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(VftaByte, VftaIndex), VftaReg);
-
- /* Determine the location of the bit for this VLAN id */
- BitOffset = vlan & 0x1F; /* lower five bits */
-
- VftaReg = IXGBE_READ_REG(hw, IXGBE_VFTA(VftaIndex));
- if (vlan_on)
- /* Turn on this VLAN id */
- VftaReg |= (1 << BitOffset);
- else
- /* Turn off this VLAN id */
- VftaReg &= ~(1 << BitOffset);
- IXGBE_WRITE_REG(hw, IXGBE_VFTA(VftaIndex), VftaReg);
+ 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);
return 0;
}
/**
- * ixgbe_setup_fc - Configure flow control settings
+ * ixgbe_fc_enable_generic - Enable flow control
* @hw: pointer to hardware structure
* @packetbuf_num: packet buffer number (0-7)
*
- * Configures the flow control settings based on SW configuration.
- * This function is used for 802.3x flow control configuration only.
+ * Enable flow control according to the current settings.
+ **/
+s32 ixgbe_fc_enable_generic(struct ixgbe_hw *hw, s32 packetbuf_num)
+{
+ s32 ret_val = 0;
+ u32 mflcn_reg, fccfg_reg;
+ u32 reg;
+ u32 rx_pba_size;
+
+#ifdef CONFIG_DCB
+ if (hw->fc.requested_mode == ixgbe_fc_pfc)
+ goto out;
+
+#endif /* CONFIG_DCB */
+ /* Negotiate the fc mode to use */
+ ret_val = ixgbe_fc_autoneg(hw);
+ if (ret_val)
+ goto out;
+
+ /* Disable any previous flow control settings */
+ mflcn_reg = IXGBE_READ_REG(hw, IXGBE_MFLCN);
+ mflcn_reg &= ~(IXGBE_MFLCN_RFCE | IXGBE_MFLCN_RPFCE);
+
+ fccfg_reg = IXGBE_READ_REG(hw, IXGBE_FCCFG);
+ fccfg_reg &= ~(IXGBE_FCCFG_TFCE_802_3X | IXGBE_FCCFG_TFCE_PRIORITY);
+
+ /*
+ * The possible values of fc.current_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.
+ * 4: Priority Flow Control is enabled.
+ * other: Invalid.
+ */
+ switch (hw->fc.current_mode) {
+ case ixgbe_fc_none:
+ /*
+ * Flow control is disabled by software override or autoneg.
+ * The code below will actually disable it in the HW.
+ */
+ 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.
+ */
+ mflcn_reg |= IXGBE_MFLCN_RFCE;
+ break;
+ case ixgbe_fc_tx_pause:
+ /*
+ * Tx Flow control is enabled, and Rx Flow control is
+ * disabled by software override.
+ */
+ fccfg_reg |= IXGBE_FCCFG_TFCE_802_3X;
+ break;
+ case ixgbe_fc_full:
+ /* Flow control (both Rx and Tx) is enabled by SW override. */
+ mflcn_reg |= IXGBE_MFLCN_RFCE;
+ fccfg_reg |= IXGBE_FCCFG_TFCE_802_3X;
+ 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;
+ }
+
+ /* Set 802.3x based flow control settings. */
+ mflcn_reg |= IXGBE_MFLCN_DPF;
+ IXGBE_WRITE_REG(hw, IXGBE_MFLCN, mflcn_reg);
+ IXGBE_WRITE_REG(hw, IXGBE_FCCFG, fccfg_reg);
+
+ reg = IXGBE_READ_REG(hw, IXGBE_MTQC);
+ /* Thresholds are different for link flow control when in DCB mode */
+ if (reg & IXGBE_MTQC_RT_ENA) {
+ rx_pba_size = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(packetbuf_num));
+
+ /* Always disable XON for LFC when in DCB mode */
+ reg = (rx_pba_size >> 5) & 0xFFE0;
+ IXGBE_WRITE_REG(hw, IXGBE_FCRTL_82599(packetbuf_num), reg);
+
+ reg = (rx_pba_size >> 2) & 0xFFE0;
+ if (hw->fc.current_mode & ixgbe_fc_tx_pause)
+ reg |= IXGBE_FCRTH_FCEN;
+ IXGBE_WRITE_REG(hw, IXGBE_FCRTH_82599(packetbuf_num), reg);
+ } else {
+ /*
+ * Set up and enable Rx high/low water mark thresholds,
+ * enable XON.
+ */
+ if (hw->fc.current_mode & ixgbe_fc_tx_pause) {
+ if (hw->fc.send_xon) {
+ IXGBE_WRITE_REG(hw,
+ IXGBE_FCRTL_82599(packetbuf_num),
+ (hw->fc.low_water |
+ IXGBE_FCRTL_XONE));
+ } else {
+ IXGBE_WRITE_REG(hw,
+ IXGBE_FCRTL_82599(packetbuf_num),
+ hw->fc.low_water);
+ }
+
+ IXGBE_WRITE_REG(hw, IXGBE_FCRTH_82599(packetbuf_num),
+ (hw->fc.high_water | IXGBE_FCRTH_FCEN));
+ }
+ }
+
+ /* Configure pause time (2 TCs per register) */
+ reg = IXGBE_READ_REG(hw, IXGBE_FCTTV(packetbuf_num / 2));
+ if ((packetbuf_num & 1) == 0)
+ reg = (reg & 0xFFFF0000) | hw->fc.pause_time;
+ else
+ reg = (reg & 0x0000FFFF) | (hw->fc.pause_time << 16);
+ IXGBE_WRITE_REG(hw, IXGBE_FCTTV(packetbuf_num / 2), reg);
+
+ IXGBE_WRITE_REG(hw, IXGBE_FCRTV, (hw->fc.pause_time >> 1));
+
+out:
+ return ret_val;
+}
+
+/**
+ * ixgbe_fc_autoneg - Configure flow control
+ * @hw: pointer to hardware structure
+ *
+ * Compares our advertised flow control capabilities to those advertised by
+ * our link partner, and determines the proper flow control mode to use.
**/
-s32 ixgbe_setup_fc(struct ixgbe_hw *hw, s32 packetbuf_num)
+s32 ixgbe_fc_autoneg(struct ixgbe_hw *hw)
{
- u32 frctl_reg;
- u32 rmcs_reg;
+ s32 ret_val = 0;
+ ixgbe_link_speed speed;
+ u32 pcs_anadv_reg, pcs_lpab_reg, linkstat;
+ u32 links2, anlp1_reg, autoc_reg, links;
+ bool link_up;
- if (packetbuf_num < 0 || packetbuf_num > 7)
+ /*
+ * AN should have completed when the cable was plugged in.
+ * Look for reasons to bail out. Bail out if:
+ * - FC autoneg is disabled, or if
+ * - link is not up.
+ *
+ * Since we're being called from an LSC, link is already known to be up.
+ * 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;
+ 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;
+ }
+
+ 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;
+ }
+ }
+ }
+
+ /*
+ * 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;
+ }
+ }
+
+ /*
+ * Bail out on
+ * - copper or CX4 adapters
+ * - fiber adapters running at 10gig
+ */
+ 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))) {
+ hw->fc.fc_was_autonegged = false;
+ hw->fc.current_mode = hw->fc.requested_mode;
+ goto out;
+ }
+
+ /*
+ * Read the AN advertisement 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");
+ }
+ }
+
+ if (hw->phy.media_type == ixgbe_media_type_backplane) {
+ /*
+ * Read the 10g AN autoc and LP ability registers and resolve
+ * local flow control settings accordingly
+ */
+ 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");
+ } 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;
+}
+
+/**
+ * ixgbe_setup_fc - Set up flow control
+ * @hw: pointer to hardware structure
+ *
+ * Called at init time to set up flow control.
+ **/
+static s32 ixgbe_setup_fc(struct ixgbe_hw *hw, s32 packetbuf_num)
+{
+ s32 ret_val = 0;
+ u32 reg;
+
+#ifdef CONFIG_DCB
+ if (hw->fc.requested_mode == ixgbe_fc_pfc) {
+ hw->fc.current_mode = hw->fc.requested_mode;
+ goto out;
+ }
+
+#endif
+ /* Validate the packetbuf configuration */
+ if (packetbuf_num < 0 || packetbuf_num > 7) {
hw_dbg(hw, "Invalid packet buffer number [%d], expected range "
"is 0-7\n", packetbuf_num);
+ ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS;
+ goto out;
+ }
- frctl_reg = IXGBE_READ_REG(hw, IXGBE_FCTRL);
- frctl_reg &= ~(IXGBE_FCTRL_RFCE | IXGBE_FCTRL_RPFCE);
+ /*
+ * Validate the water mark configuration. Zero water marks are invalid
+ * because it causes the controller to just blast out fc packets.
+ */
+ if (!hw->fc.low_water || !hw->fc.high_water || !hw->fc.pause_time) {
+ hw_dbg(hw, "Invalid water mark configuration\n");
+ ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS;
+ goto out;
+ }
- rmcs_reg = IXGBE_READ_REG(hw, IXGBE_RMCS);
- rmcs_reg &= ~(IXGBE_RMCS_TFCE_PRIORITY | IXGBE_RMCS_TFCE_802_3X);
+ /*
+ * Validate the requested mode. Strict IEEE mode does not allow
+ * ixgbe_fc_rx_pause because it will cause us to fail at UNH.
+ */
+ if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
+ hw_dbg(hw, "ixgbe_fc_rx_pause not valid in strict "
+ "IEEE mode\n");
+ ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS;
+ goto out;
+ }
/*
- * We want to save off the original Flow Control configuration just in
- * case we get disconnected and then reconnected into a different hub
- * or switch with different Flow Control capabilities.
+ * 10gig parts do not have a word in the EEPROM to determine the
+ * default flow control setting, so we explicitly set it to full.
*/
- hw->fc.type = hw->fc.original_type;
+ if (hw->fc.requested_mode == ixgbe_fc_default)
+ hw->fc.requested_mode = ixgbe_fc_full;
/*
- * The possible values of the "flow_control" parameter are:
+ * 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.
+ */
+ reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANA);
+
+ /*
+ * 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.
+ * 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.
+#ifdef CONFIG_DCB
+ * 4: Priority Flow Control is enabled.
+#endif
* other: Invalid.
*/
- switch (hw->fc.type) {
+ switch (hw->fc.requested_mode) {
case ixgbe_fc_none:
+ /* Flow control completely disabled by software override. */
+ reg &= ~(IXGBE_PCS1GANA_SYM_PAUSE | IXGBE_PCS1GANA_ASM_PAUSE);
break;
case ixgbe_fc_rx_pause:
/*
- * RX Flow control is enabled,
- * and TX Flow control is disabled.
+ * 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.
*/
- frctl_reg |= IXGBE_FCTRL_RFCE;
+ reg |= (IXGBE_PCS1GANA_SYM_PAUSE | IXGBE_PCS1GANA_ASM_PAUSE);
break;
case ixgbe_fc_tx_pause:
/*
- * TX Flow control is enabled, and RX Flow control is disabled,
- * by a software over-ride.
+ * Tx Flow control is enabled, and Rx Flow control is
+ * disabled by software override.
*/
- rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
+ reg |= (IXGBE_PCS1GANA_ASM_PAUSE);
+ reg &= ~(IXGBE_PCS1GANA_SYM_PAUSE);
break;
case ixgbe_fc_full:
- /*
- * Flow control (both RX and TX) is enabled by a software
- * over-ride.
- */
- frctl_reg |= IXGBE_FCTRL_RFCE;
- rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
+ /* Flow control (both Rx and Tx) is enabled by SW override. */
+ reg |= (IXGBE_PCS1GANA_SYM_PAUSE | IXGBE_PCS1GANA_ASM_PAUSE);
break;
+#ifdef CONFIG_DCB
+ case ixgbe_fc_pfc:
+ goto out;
+ break;
+#endif /* CONFIG_DCB */
default:
- /* We should never get here. The value should be 0-3. */
hw_dbg(hw, "Flow control param set incorrectly\n");
+ ret_val = IXGBE_ERR_CONFIG;
+ goto out;
break;
}
- /* Enable 802.3x based flow control settings. */
- IXGBE_WRITE_REG(hw, IXGBE_FCTRL, frctl_reg);
- IXGBE_WRITE_REG(hw, IXGBE_RMCS, rmcs_reg);
+ 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;
+
+ IXGBE_WRITE_REG(hw, IXGBE_PCS1GLCTL, reg);
+ hw_dbg(hw, "Set up FC; PCS1GLCTL = 0x%08X\n", reg);
/*
- * We need to set up the Receive Threshold high and low water
- * marks as well as (optionally) enabling the transmission of
- * XON frames.
+ * 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.
*/
- if (hw->fc.type & ixgbe_fc_tx_pause) {
- if (hw->fc.send_xon) {
- IXGBE_WRITE_REG(hw, IXGBE_FCRTL(packetbuf_num),
- (hw->fc.low_water | IXGBE_FCRTL_XONE));
- } else {
- IXGBE_WRITE_REG(hw, IXGBE_FCRTL(packetbuf_num),
- hw->fc.low_water);
- }
- IXGBE_WRITE_REG(hw, IXGBE_FCRTH(packetbuf_num),
- (hw->fc.high_water)|IXGBE_FCRTH_FCEN);
- }
+ reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
- IXGBE_WRITE_REG(hw, IXGBE_FCTTV(0), hw->fc.pause_time);
- IXGBE_WRITE_REG(hw, IXGBE_FCRTV, (hw->fc.pause_time >> 1));
+ /*
+ * 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.
+ */
+ 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;
+ }
+ /*
+ * 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);
- return 0;
+out:
+ return ret_val;
}
/**
**/
s32 ixgbe_disable_pcie_master(struct ixgbe_hw *hw)
{
- u32 ctrl;
- s32 i;
+ u32 i;
+ u32 reg_val;
+ u32 number_of_queues;
s32 status = IXGBE_ERR_MASTER_REQUESTS_PENDING;
- ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
- ctrl |= IXGBE_CTRL_GIO_DIS;
- IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
+ /* Disable the receive unit by stopping each queue */
+ number_of_queues = hw->mac.max_rx_queues;
+ for (i = 0; i < number_of_queues; i++) {
+ reg_val = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i));
+ if (reg_val & IXGBE_RXDCTL_ENABLE) {
+ reg_val &= ~IXGBE_RXDCTL_ENABLE;
+ IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(i), reg_val);
+ }
+ }
+
+ reg_val = IXGBE_READ_REG(hw, IXGBE_CTRL);
+ reg_val |= IXGBE_CTRL_GIO_DIS;
+ 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)) {
/**
- * ixgbe_acquire_swfw_sync - Aquire SWFW semaphore
+ * ixgbe_acquire_swfw_sync - Acquire SWFW semaphore
* @hw: pointer to hardware structure
- * @mask: Mask to specify wich semaphore to acquire
+ * @mask: Mask to specify which semaphore to acquire
*
- * Aquires the SWFW semaphore throught the GSSR register for the specified
+ * Acquires the SWFW semaphore thought the GSSR register for the specified
* function (CSR, PHY0, PHY1, EEPROM, Flash)
**/
s32 ixgbe_acquire_swfw_sync(struct ixgbe_hw *hw, u16 mask)
while (timeout) {
if (ixgbe_get_eeprom_semaphore(hw))
- return -IXGBE_ERR_SWFW_SYNC;
+ return IXGBE_ERR_SWFW_SYNC;
gssr = IXGBE_READ_REG(hw, IXGBE_GSSR);
if (!(gssr & (fwmask | swmask)))
if (!timeout) {
hw_dbg(hw, "Driver can't access resource, GSSR timeout.\n");
- return -IXGBE_ERR_SWFW_SYNC;
+ return IXGBE_ERR_SWFW_SYNC;
}
gssr |= swmask;
/**
* ixgbe_release_swfw_sync - Release SWFW semaphore
* @hw: pointer to hardware structure
- * @mask: Mask to specify wich semaphore to release
+ * @mask: Mask to specify which semaphore to release
*
- * Releases the SWFW semaphore throught the GSSR register for the specified
+ * Releases the SWFW semaphore thought the GSSR register for the specified
* function (CSR, PHY0, PHY1, EEPROM, Flash)
**/
void ixgbe_release_swfw_sync(struct ixgbe_hw *hw, u16 mask)
}
/**
- * ixgbe_read_analog_reg8 - Reads 8 bit Atlas analog register
+ * ixgbe_enable_rx_dma_generic - Enable the Rx DMA unit
* @hw: pointer to hardware structure
- * @reg: analog register to read
- * @val: read value
+ * @regval: register value to write to RXCTRL
*
- * Performs write operation to analog register specified.
+ * Enables the Rx DMA unit
+ **/
+s32 ixgbe_enable_rx_dma_generic(struct ixgbe_hw *hw, u32 regval)
+{
+ IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, regval);
+
+ return 0;
+}
+
+/**
+ * ixgbe_blink_led_start_generic - Blink LED based on index.
+ * @hw: pointer to hardware structure
+ * @index: led number to blink
**/
-s32 ixgbe_read_analog_reg8(struct ixgbe_hw *hw, u32 reg, u8 *val)
+s32 ixgbe_blink_led_start_generic(struct ixgbe_hw *hw, u32 index)
{
- u32 atlas_ctl;
+ ixgbe_link_speed speed = 0;
+ bool link_up = 0;
+ u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
+ u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
- IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL,
- IXGBE_ATLASCTL_WRITE_CMD | (reg << 8));
+ /*
+ * Link must be up to auto-blink the LEDs;
+ * Force it if link is down.
+ */
+ hw->mac.ops.check_link(hw, &speed, &link_up, false);
+
+ if (!link_up) {
+ autoc_reg |= IXGBE_AUTOC_AN_RESTART;
+ autoc_reg |= IXGBE_AUTOC_FLU;
+ IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
+ msleep(10);
+ }
+
+ led_reg &= ~IXGBE_LED_MODE_MASK(index);
+ led_reg |= IXGBE_LED_BLINK(index);
+ IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg);
IXGBE_WRITE_FLUSH(hw);
- udelay(10);
- atlas_ctl = IXGBE_READ_REG(hw, IXGBE_ATLASCTL);
- *val = (u8)atlas_ctl;
return 0;
}
/**
- * ixgbe_write_analog_reg8 - Writes 8 bit Atlas analog register
+ * ixgbe_blink_led_stop_generic - Stop blinking LED based on index.
* @hw: pointer to hardware structure
- * @reg: atlas register to write
- * @val: value to write
- *
- * Performs write operation to Atlas analog register specified.
+ * @index: led number to stop blinking
**/
-s32 ixgbe_write_analog_reg8(struct ixgbe_hw *hw, u32 reg, u8 val)
+s32 ixgbe_blink_led_stop_generic(struct ixgbe_hw *hw, u32 index)
{
- u32 atlas_ctl;
+ u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
+ u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
+
+ autoc_reg &= ~IXGBE_AUTOC_FLU;
+ autoc_reg |= IXGBE_AUTOC_AN_RESTART;
+ IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
- atlas_ctl = (reg << 8) | val;
- IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL, atlas_ctl);
+ led_reg &= ~IXGBE_LED_MODE_MASK(index);
+ led_reg &= ~IXGBE_LED_BLINK(index);
+ led_reg |= IXGBE_LED_LINK_ACTIVE << IXGBE_LED_MODE_SHIFT(index);
+ IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg);
IXGBE_WRITE_FLUSH(hw);
- udelay(10);
return 0;
}
-
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