*/
#include "txgbe_type.h"
+#include "txgbe_mbx.h"
#include "txgbe_phy.h"
+#include "txgbe_dcb.h"
+#include "txgbe_vf.h"
#include "txgbe_eeprom.h"
#include "txgbe_mng.h"
#include "txgbe_hw.h"
+#define TXGBE_RAPTOR_MAX_TX_QUEUES 128
+#define TXGBE_RAPTOR_MAX_RX_QUEUES 128
#define TXGBE_RAPTOR_RAR_ENTRIES 128
+#define TXGBE_RAPTOR_MC_TBL_SIZE 128
+#define TXGBE_RAPTOR_VFT_TBL_SIZE 128
+#define TXGBE_RAPTOR_RX_PB_SIZE 512 /*KB*/
+
+static s32 txgbe_setup_copper_link_raptor(struct txgbe_hw *hw,
+ u32 speed,
+ bool autoneg_wait_to_complete);
+
+static s32 txgbe_mta_vector(struct txgbe_hw *hw, u8 *mc_addr);
+static s32 txgbe_get_san_mac_addr_offset(struct txgbe_hw *hw,
+ u16 *san_mac_offset);
+
+/**
+ * txgbe_device_supports_autoneg_fc - Check if device supports autonegotiation
+ * of flow control
+ * @hw: pointer to hardware structure
+ *
+ * This function returns true if the device supports flow control
+ * autonegotiation, and false if it does not.
+ *
+ **/
+bool txgbe_device_supports_autoneg_fc(struct txgbe_hw *hw)
+{
+ bool supported = false;
+ u32 speed;
+ bool link_up;
+
+ DEBUGFUNC("txgbe_device_supports_autoneg_fc");
+
+ switch (hw->phy.media_type) {
+ case txgbe_media_type_fiber_qsfp:
+ case txgbe_media_type_fiber:
+ hw->mac.check_link(hw, &speed, &link_up, false);
+ /* if link is down, assume supported */
+ if (link_up)
+ supported = speed == TXGBE_LINK_SPEED_1GB_FULL ?
+ true : false;
+ else
+ supported = true;
+
+ break;
+ case txgbe_media_type_backplane:
+ supported = true;
+ break;
+ case txgbe_media_type_copper:
+ /* only some copper devices support flow control autoneg */
+ switch (hw->subsystem_device_id & 0xFF) {
+ case TXGBE_DEV_ID_XAUI:
+ case TXGBE_DEV_ID_SGMII:
+ supported = true;
+ break;
+ default:
+ supported = false;
+ }
+ default:
+ break;
+ }
+
+ if (!supported)
+ DEBUGOUT("Device %x does not support flow control autoneg",
+ hw->device_id);
+ return supported;
+}
+
+/**
+ * txgbe_setup_fc - Set up flow control
+ * @hw: pointer to hardware structure
+ *
+ * Called at init time to set up flow control.
+ **/
+s32 txgbe_setup_fc(struct txgbe_hw *hw)
+{
+ s32 err = 0;
+ u32 reg = 0;
+ u16 reg_cu = 0;
+ u32 value = 0;
+ u64 reg_bp = 0;
+
+ DEBUGFUNC("txgbe_setup_fc");
+
+ /* Validate the requested mode */
+ if (hw->fc.strict_ieee && hw->fc.requested_mode == txgbe_fc_rx_pause) {
+ DEBUGOUT("txgbe_fc_rx_pause not valid in strict IEEE mode\n");
+ err = TXGBE_ERR_INVALID_LINK_SETTINGS;
+ goto out;
+ }
+
+ /*
+ * 10gig parts do not have a word in the EEPROM to determine the
+ * default flow control setting, so we explicitly set it to full.
+ */
+ if (hw->fc.requested_mode == txgbe_fc_default)
+ hw->fc.requested_mode = txgbe_fc_full;
+
+ /*
+ * 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 txgbe_fc_none:
+ /* Flow control completely disabled by software override. */
+ break;
+ case txgbe_fc_tx_pause:
+ /*
+ * Tx Flow control is enabled, and Rx Flow control is
+ * disabled by software override.
+ */
+ reg |= SR_MII_MMD_AN_ADV_PAUSE_ASM;
+ reg_bp |= SR_AN_MMD_ADV_REG1_PAUSE_ASM;
+ break;
+ case txgbe_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, as such we fall
+ * through to the fc_full statement. Later, we will
+ * disable the adapter's ability to send PAUSE frames.
+ */
+ case txgbe_fc_full:
+ /* Flow control (both Rx and Tx) is enabled by SW override. */
+ reg |= SR_MII_MMD_AN_ADV_PAUSE_SYM |
+ SR_MII_MMD_AN_ADV_PAUSE_ASM;
+ reg_bp |= SR_AN_MMD_ADV_REG1_PAUSE_SYM |
+ SR_AN_MMD_ADV_REG1_PAUSE_ASM;
+ break;
+ default:
+ DEBUGOUT("Flow control param set incorrectly\n");
+ err = TXGBE_ERR_CONFIG;
+ goto out;
+ }
+
+ /*
+ * Enable auto-negotiation between the MAC & PHY;
+ * the MAC will advertise clause 37 flow control.
+ */
+ value = rd32_epcs(hw, SR_MII_MMD_AN_ADV);
+ value = (value & ~(SR_MII_MMD_AN_ADV_PAUSE_ASM |
+ SR_MII_MMD_AN_ADV_PAUSE_SYM)) | reg;
+ wr32_epcs(hw, SR_MII_MMD_AN_ADV, value);
+
+ /*
+ * AUTOC restart handles negotiation of 1G and 10G on backplane
+ * and copper. There is no need to set the PCS1GCTL register.
+ *
+ */
+ if (hw->phy.media_type == txgbe_media_type_backplane) {
+ value = rd32_epcs(hw, SR_AN_MMD_ADV_REG1);
+ value = (value & ~(SR_AN_MMD_ADV_REG1_PAUSE_ASM |
+ SR_AN_MMD_ADV_REG1_PAUSE_SYM)) |
+ reg_bp;
+ wr32_epcs(hw, SR_AN_MMD_ADV_REG1, value);
+ } else if ((hw->phy.media_type == txgbe_media_type_copper) &&
+ (txgbe_device_supports_autoneg_fc(hw))) {
+ hw->phy.write_reg(hw, TXGBE_MD_AUTO_NEG_ADVT,
+ TXGBE_MD_DEV_AUTO_NEG, reg_cu);
+ }
+
+ DEBUGOUT("Set up FC; reg = 0x%08X\n", reg);
+out:
+ return err;
+}
+
+/**
+ * txgbe_start_hw - Prepare hardware for Tx/Rx
+ * @hw: pointer to hardware structure
+ *
+ * Starts the hardware by 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 txgbe_start_hw(struct txgbe_hw *hw)
+{
+ s32 err;
+ u16 device_caps;
+
+ DEBUGFUNC("txgbe_start_hw");
+
+ /* Set the media type */
+ hw->phy.media_type = hw->phy.get_media_type(hw);
+
+ /* Clear the VLAN filter table */
+ hw->mac.clear_vfta(hw);
+
+ /* Clear statistics registers */
+ hw->mac.clear_hw_cntrs(hw);
+
+ /* Setup flow control */
+ err = txgbe_setup_fc(hw);
+ if (err != 0 && err != TXGBE_NOT_IMPLEMENTED) {
+ DEBUGOUT("Flow control setup failed, returning %d\n", err);
+ return err;
+ }
+
+ /* Cache bit indicating need for crosstalk fix */
+ switch (hw->mac.type) {
+ case txgbe_mac_raptor:
+ hw->mac.get_device_caps(hw, &device_caps);
+ if (device_caps & TXGBE_DEVICE_CAPS_NO_CROSSTALK_WR)
+ hw->need_crosstalk_fix = false;
+ else
+ hw->need_crosstalk_fix = true;
+ break;
+ default:
+ hw->need_crosstalk_fix = false;
+ break;
+ }
+
+ /* Clear adapter stopped flag */
+ hw->adapter_stopped = false;
+
+ return 0;
+}
+
+/**
+ * txgbe_start_hw_gen2 - Init sequence for common device family
+ * @hw: pointer to hw structure
+ *
+ * Performs the init sequence common to the second generation
+ * of 10 GbE devices.
+ **/
+s32 txgbe_start_hw_gen2(struct txgbe_hw *hw)
+{
+ u32 i;
+
+ /* Clear the rate limiters */
+ for (i = 0; i < hw->mac.max_tx_queues; i++) {
+ wr32(hw, TXGBE_ARBPOOLIDX, i);
+ wr32(hw, TXGBE_ARBTXRATE, 0);
+ }
+ txgbe_flush(hw);
+
+ /* We need to run link autotry after the driver loads */
+ hw->mac.autotry_restart = true;
+
+ return 0;
+}
/**
* txgbe_init_hw - Generic hardware initialization
DEBUGFUNC("txgbe_init_hw");
+ /* Get firmware version */
+ hw->phy.get_fw_version(hw, &hw->fw_version);
+
/* Reset the hardware */
status = hw->mac.reset_hw(hw);
if (status == 0 || status == TXGBE_ERR_SFP_NOT_PRESENT) {
return status;
}
+/**
+ * txgbe_clear_hw_cntrs - 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.
+ **/
+s32 txgbe_clear_hw_cntrs(struct txgbe_hw *hw)
+{
+ u16 i = 0;
+
+ DEBUGFUNC("txgbe_clear_hw_cntrs");
+
+ /* QP Stats */
+ /* don't write clear queue stats */
+ for (i = 0; i < TXGBE_MAX_QP; i++) {
+ hw->qp_last[i].rx_qp_packets = 0;
+ hw->qp_last[i].tx_qp_packets = 0;
+ hw->qp_last[i].rx_qp_bytes = 0;
+ hw->qp_last[i].tx_qp_bytes = 0;
+ hw->qp_last[i].rx_qp_mc_packets = 0;
+ }
+
+ /* PB Stats */
+ for (i = 0; i < TXGBE_MAX_UP; i++) {
+ rd32(hw, TXGBE_PBRXUPXON(i));
+ rd32(hw, TXGBE_PBRXUPXOFF(i));
+ rd32(hw, TXGBE_PBTXUPXON(i));
+ rd32(hw, TXGBE_PBTXUPXOFF(i));
+ rd32(hw, TXGBE_PBTXUPOFF(i));
+
+ rd32(hw, TXGBE_PBRXMISS(i));
+ }
+ rd32(hw, TXGBE_PBRXLNKXON);
+ rd32(hw, TXGBE_PBRXLNKXOFF);
+ rd32(hw, TXGBE_PBTXLNKXON);
+ rd32(hw, TXGBE_PBTXLNKXOFF);
+
+ /* DMA Stats */
+ rd32(hw, TXGBE_DMARXPKT);
+ rd32(hw, TXGBE_DMATXPKT);
+
+ rd64(hw, TXGBE_DMARXOCTL);
+ rd64(hw, TXGBE_DMATXOCTL);
+
+ /* MAC Stats */
+ rd64(hw, TXGBE_MACRXERRCRCL);
+ rd64(hw, TXGBE_MACRXMPKTL);
+ rd64(hw, TXGBE_MACTXMPKTL);
+
+ rd64(hw, TXGBE_MACRXPKTL);
+ rd64(hw, TXGBE_MACTXPKTL);
+ rd64(hw, TXGBE_MACRXGBOCTL);
+
+ rd64(hw, TXGBE_MACRXOCTL);
+ rd32(hw, TXGBE_MACTXOCTL);
+
+ rd64(hw, TXGBE_MACRX1TO64L);
+ rd64(hw, TXGBE_MACRX65TO127L);
+ rd64(hw, TXGBE_MACRX128TO255L);
+ rd64(hw, TXGBE_MACRX256TO511L);
+ rd64(hw, TXGBE_MACRX512TO1023L);
+ rd64(hw, TXGBE_MACRX1024TOMAXL);
+ rd64(hw, TXGBE_MACTX1TO64L);
+ rd64(hw, TXGBE_MACTX65TO127L);
+ rd64(hw, TXGBE_MACTX128TO255L);
+ rd64(hw, TXGBE_MACTX256TO511L);
+ rd64(hw, TXGBE_MACTX512TO1023L);
+ rd64(hw, TXGBE_MACTX1024TOMAXL);
+
+ rd64(hw, TXGBE_MACRXERRLENL);
+ rd32(hw, TXGBE_MACRXOVERSIZE);
+ rd32(hw, TXGBE_MACRXJABBER);
+
+ /* FCoE Stats */
+ rd32(hw, TXGBE_FCOECRC);
+ rd32(hw, TXGBE_FCOELAST);
+ rd32(hw, TXGBE_FCOERPDC);
+ rd32(hw, TXGBE_FCOEPRC);
+ rd32(hw, TXGBE_FCOEPTC);
+ rd32(hw, TXGBE_FCOEDWRC);
+ rd32(hw, TXGBE_FCOEDWTC);
+
+ /* Flow Director Stats */
+ rd32(hw, TXGBE_FDIRMATCH);
+ rd32(hw, TXGBE_FDIRMISS);
+ rd32(hw, TXGBE_FDIRUSED);
+ rd32(hw, TXGBE_FDIRUSED);
+ rd32(hw, TXGBE_FDIRFAIL);
+ rd32(hw, TXGBE_FDIRFAIL);
+
+ /* MACsec Stats */
+ rd32(hw, TXGBE_LSECTX_UTPKT);
+ rd32(hw, TXGBE_LSECTX_ENCPKT);
+ rd32(hw, TXGBE_LSECTX_PROTPKT);
+ rd32(hw, TXGBE_LSECTX_ENCOCT);
+ rd32(hw, TXGBE_LSECTX_PROTOCT);
+ rd32(hw, TXGBE_LSECRX_UTPKT);
+ rd32(hw, TXGBE_LSECRX_BTPKT);
+ rd32(hw, TXGBE_LSECRX_NOSCIPKT);
+ rd32(hw, TXGBE_LSECRX_UNSCIPKT);
+ rd32(hw, TXGBE_LSECRX_DECOCT);
+ rd32(hw, TXGBE_LSECRX_VLDOCT);
+ rd32(hw, TXGBE_LSECRX_UNCHKPKT);
+ rd32(hw, TXGBE_LSECRX_DLYPKT);
+ rd32(hw, TXGBE_LSECRX_LATEPKT);
+ for (i = 0; i < 2; i++) {
+ rd32(hw, TXGBE_LSECRX_OKPKT(i));
+ rd32(hw, TXGBE_LSECRX_INVPKT(i));
+ rd32(hw, TXGBE_LSECRX_BADPKT(i));
+ }
+ rd32(hw, TXGBE_LSECRX_INVSAPKT);
+ rd32(hw, TXGBE_LSECRX_BADSAPKT);
+
+ return 0;
+}
+
+/**
+ * txgbe_get_mac_addr - Generic get MAC address
+ * @hw: pointer to hardware structure
+ * @mac_addr: Adapter MAC address
+ *
+ * Reads the adapter's MAC address from first Receive Address Register (RAR0)
+ * 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 txgbe_get_mac_addr(struct txgbe_hw *hw, u8 *mac_addr)
+{
+ u32 rar_high;
+ u32 rar_low;
+ u16 i;
+
+ DEBUGFUNC("txgbe_get_mac_addr");
+
+ wr32(hw, TXGBE_ETHADDRIDX, 0);
+ rar_high = rd32(hw, TXGBE_ETHADDRH);
+ rar_low = rd32(hw, TXGBE_ETHADDRL);
+
+ for (i = 0; i < 2; i++)
+ mac_addr[i] = (u8)(rar_high >> (1 - i) * 8);
+
+ for (i = 0; i < 4; i++)
+ mac_addr[i + 2] = (u8)(rar_low >> (3 - i) * 8);
+
+ return 0;
+}
/**
* txgbe_set_lan_id_multi_port - Set LAN id for PCIe multiple port devices
bus->func = bus->lan_id;
}
+/**
+ * txgbe_stop_hw - Generic stop Tx/Rx units
+ * @hw: pointer to hardware structure
+ *
+ * Sets the adapter_stopped flag within txgbe_hw struct. Clears interrupts,
+ * disables transmit and receive units. The adapter_stopped flag is used by
+ * the shared code and drivers to determine if the adapter is in a stopped
+ * state and should not touch the hardware.
+ **/
+s32 txgbe_stop_hw(struct txgbe_hw *hw)
+{
+ u32 reg_val;
+ u16 i;
+
+ DEBUGFUNC("txgbe_stop_hw");
+
+ /*
+ * Set the adapter_stopped flag so other driver functions stop touching
+ * the hardware
+ */
+ hw->adapter_stopped = true;
+
+ /* Disable the receive unit */
+ txgbe_disable_rx(hw);
+
+ /* Clear interrupt mask to stop interrupts from being generated */
+ wr32(hw, TXGBE_IENMISC, 0);
+ wr32(hw, TXGBE_IMS(0), TXGBE_IMS_MASK);
+ wr32(hw, TXGBE_IMS(1), TXGBE_IMS_MASK);
+
+ /* Clear any pending interrupts, flush previous writes */
+ wr32(hw, TXGBE_ICRMISC, TXGBE_ICRMISC_MASK);
+ wr32(hw, TXGBE_ICR(0), TXGBE_ICR_MASK);
+ wr32(hw, TXGBE_ICR(1), TXGBE_ICR_MASK);
+
+ /* Disable the transmit unit. Each queue must be disabled. */
+ for (i = 0; i < hw->mac.max_tx_queues; i++)
+ wr32(hw, TXGBE_TXCFG(i), TXGBE_TXCFG_FLUSH);
+
+ /* Disable the receive unit by stopping each queue */
+ for (i = 0; i < hw->mac.max_rx_queues; i++) {
+ reg_val = rd32(hw, TXGBE_RXCFG(i));
+ reg_val &= ~TXGBE_RXCFG_ENA;
+ wr32(hw, TXGBE_RXCFG(i), reg_val);
+ }
+
+ /* flush all queues disables */
+ txgbe_flush(hw);
+ msec_delay(2);
+
+ return 0;
+}
+
+/**
+ * txgbe_led_on - Turns on the software controllable LEDs.
+ * @hw: pointer to hardware structure
+ * @index: led number to turn on
+ **/
+s32 txgbe_led_on(struct txgbe_hw *hw, u32 index)
+{
+ u32 led_reg = rd32(hw, TXGBE_LEDCTL);
+
+ DEBUGFUNC("txgbe_led_on");
+
+ if (index > 4)
+ return TXGBE_ERR_PARAM;
+
+ /* To turn on the LED, set mode to ON. */
+ led_reg |= TXGBE_LEDCTL_SEL(index);
+ led_reg |= TXGBE_LEDCTL_ORD(index);
+ wr32(hw, TXGBE_LEDCTL, led_reg);
+ txgbe_flush(hw);
+
+ return 0;
+}
+
+/**
+ * txgbe_led_off - Turns off the software controllable LEDs.
+ * @hw: pointer to hardware structure
+ * @index: led number to turn off
+ **/
+s32 txgbe_led_off(struct txgbe_hw *hw, u32 index)
+{
+ u32 led_reg = rd32(hw, TXGBE_LEDCTL);
+
+ DEBUGFUNC("txgbe_led_off");
+
+ if (index > 4)
+ return TXGBE_ERR_PARAM;
+
+ /* To turn off the LED, set mode to OFF. */
+ led_reg &= ~(TXGBE_LEDCTL_SEL(index));
+ led_reg &= ~(TXGBE_LEDCTL_ORD(index));
+ wr32(hw, TXGBE_LEDCTL, led_reg);
+ txgbe_flush(hw);
+
+ return 0;
+}
+
/**
* txgbe_validate_mac_addr - Validate MAC address
* @mac_addr: pointer to MAC address.
}
/**
- * txgbe_clear_tx_pending - Clear pending TX work from the PCIe fifo
- * @hw: pointer to the hardware structure
+ * txgbe_set_rar - 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
*
- * The MACs can experience issues if TX work is still pending
- * when a reset occurs. This function prevents this by flushing the PCIe
- * buffers on the system.
+ * Puts an ethernet address into a receive address register.
**/
-void txgbe_clear_tx_pending(struct txgbe_hw *hw)
+s32 txgbe_set_rar(struct txgbe_hw *hw, u32 index, u8 *addr, u32 vmdq,
+ u32 enable_addr)
{
- u32 hlreg0, i, poll;
+ u32 rar_low, rar_high;
+ u32 rar_entries = hw->mac.num_rar_entries;
+
+ DEBUGFUNC("txgbe_set_rar");
+
+ /* Make sure we are using a valid rar index range */
+ if (index >= rar_entries) {
+ DEBUGOUT("RAR index %d is out of range.\n", index);
+ return TXGBE_ERR_INVALID_ARGUMENT;
+ }
+
+ /* setup VMDq pool selection before this RAR gets enabled */
+ hw->mac.set_vmdq(hw, index, vmdq);
/*
- * If double reset is not requested then all transactions should
- * already be clear and as such there is no work to do
+ * HW expects these in little endian so we reverse the byte
+ * order from network order (big endian) to little endian
*/
- if (!(hw->mac.flags & TXGBE_FLAGS_DOUBLE_RESET_REQUIRED))
- return;
+ rar_low = TXGBE_ETHADDRL_AD0(addr[5]) |
+ TXGBE_ETHADDRL_AD1(addr[4]) |
+ TXGBE_ETHADDRL_AD2(addr[3]) |
+ TXGBE_ETHADDRL_AD3(addr[2]);
+ /*
+ * 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 = rd32(hw, TXGBE_ETHADDRH);
+ rar_high &= ~TXGBE_ETHADDRH_AD_MASK;
+ rar_high |= (TXGBE_ETHADDRH_AD4(addr[1]) |
+ TXGBE_ETHADDRH_AD5(addr[0]));
- hlreg0 = rd32(hw, TXGBE_PSRCTL);
- wr32(hw, TXGBE_PSRCTL, hlreg0 | TXGBE_PSRCTL_LBENA);
+ rar_high &= ~TXGBE_ETHADDRH_VLD;
+ if (enable_addr != 0)
+ rar_high |= TXGBE_ETHADDRH_VLD;
- /* Wait for a last completion before clearing buffers */
- txgbe_flush(hw);
- msec_delay(3);
+ wr32(hw, TXGBE_ETHADDRIDX, index);
+ wr32(hw, TXGBE_ETHADDRL, rar_low);
+ wr32(hw, TXGBE_ETHADDRH, rar_high);
+
+ return 0;
+}
+
+/**
+ * txgbe_clear_rar - 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 txgbe_clear_rar(struct txgbe_hw *hw, u32 index)
+{
+ u32 rar_high;
+ u32 rar_entries = hw->mac.num_rar_entries;
+
+ DEBUGFUNC("txgbe_clear_rar");
+
+ /* Make sure we are using a valid rar index range */
+ if (index >= rar_entries) {
+ DEBUGOUT("RAR index %d is out of range.\n", index);
+ return TXGBE_ERR_INVALID_ARGUMENT;
+ }
/*
- * Before proceeding, make sure that the PCIe block does not have
- * transactions pending.
+ * 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.
*/
- poll = (800 * 11) / 10;
- for (i = 0; i < poll; i++)
- usec_delay(100);
+ wr32(hw, TXGBE_ETHADDRIDX, index);
+ rar_high = rd32(hw, TXGBE_ETHADDRH);
+ rar_high &= ~(TXGBE_ETHADDRH_AD_MASK | TXGBE_ETHADDRH_VLD);
- /* Flush all writes and allow 20usec for all transactions to clear */
- txgbe_flush(hw);
- usec_delay(20);
+ wr32(hw, TXGBE_ETHADDRL, 0);
+ wr32(hw, TXGBE_ETHADDRH, rar_high);
- /* restore previous register values */
- wr32(hw, TXGBE_PSRCTL, hlreg0);
+ /* clear VMDq pool/queue selection for this RAR */
+ hw->mac.clear_vmdq(hw, index, BIT_MASK32);
+
+ return 0;
}
/**
- * txgbe_init_shared_code - Initialize the shared code
+ * txgbe_init_rx_addrs - Initializes receive address filters.
* @hw: pointer to hardware structure
*
- * This will assign function pointers and assign the MAC type and PHY code.
- * Does not touch the hardware. This function must be called prior to any
- * other function in the shared code. The txgbe_hw structure should be
- * memset to 0 prior to calling this function. The following fields in
- * hw structure should be filled in prior to calling this function:
- * hw_addr, back, device_id, vendor_id, subsystem_device_id,
- * subsystem_vendor_id, and revision_id
+ * Places the MAC address in receive address register 0 and clears the rest
+ * of the receive address registers. Clears the multicast table. Assumes
+ * the receiver is in reset when the routine is called.
**/
-s32 txgbe_init_shared_code(struct txgbe_hw *hw)
+s32 txgbe_init_rx_addrs(struct txgbe_hw *hw)
{
- s32 status;
+ u32 i;
+ u32 psrctl;
+ u32 rar_entries = hw->mac.num_rar_entries;
- DEBUGFUNC("txgbe_init_shared_code");
+ DEBUGFUNC("txgbe_init_rx_addrs");
/*
- * Set the mac type
+ * If the current mac address is valid, assume it is a software override
+ * to the permanent address.
+ * Otherwise, use the permanent address from the eeprom.
*/
- txgbe_set_mac_type(hw);
+ if (txgbe_validate_mac_addr(hw->mac.addr) ==
+ TXGBE_ERR_INVALID_MAC_ADDR) {
+ /* Get the MAC address from the RAR0 for later reference */
+ hw->mac.get_mac_addr(hw, hw->mac.addr);
+
+ DEBUGOUT(" Keeping Current RAR0 Addr =%.2X %.2X %.2X ",
+ hw->mac.addr[0], hw->mac.addr[1],
+ hw->mac.addr[2]);
+ DEBUGOUT("%.2X %.2X %.2X\n", hw->mac.addr[3],
+ hw->mac.addr[4], hw->mac.addr[5]);
+ } else {
+ /* Setup the receive address. */
+ DEBUGOUT("Overriding MAC Address in RAR[0]\n");
+ DEBUGOUT(" New MAC Addr =%.2X %.2X %.2X ",
+ hw->mac.addr[0], hw->mac.addr[1],
+ hw->mac.addr[2]);
+ DEBUGOUT("%.2X %.2X %.2X\n", hw->mac.addr[3],
+ hw->mac.addr[4], hw->mac.addr[5]);
+
+ hw->mac.set_rar(hw, 0, hw->mac.addr, 0, true);
+ }
- txgbe_init_ops_dummy(hw);
- switch (hw->mac.type) {
- case txgbe_mac_raptor:
- status = txgbe_init_ops_pf(hw);
+ /* clear VMDq pool/queue selection for RAR 0 */
+ hw->mac.clear_vmdq(hw, 0, BIT_MASK32);
+
+ hw->addr_ctrl.overflow_promisc = 0;
+
+ hw->addr_ctrl.rar_used_count = 1;
+
+ /* Zero out the other receive addresses. */
+ DEBUGOUT("Clearing RAR[1-%d]\n", rar_entries - 1);
+ for (i = 1; i < rar_entries; i++) {
+ wr32(hw, TXGBE_ETHADDRIDX, i);
+ wr32(hw, TXGBE_ETHADDRL, 0);
+ wr32(hw, TXGBE_ETHADDRH, 0);
+ }
+
+ /* Clear the MTA */
+ hw->addr_ctrl.mta_in_use = 0;
+ psrctl = rd32(hw, TXGBE_PSRCTL);
+ psrctl &= ~(TXGBE_PSRCTL_ADHF12_MASK | TXGBE_PSRCTL_MCHFENA);
+ psrctl |= TXGBE_PSRCTL_ADHF12(hw->mac.mc_filter_type);
+ wr32(hw, TXGBE_PSRCTL, psrctl);
+
+ DEBUGOUT(" Clearing MTA\n");
+ for (i = 0; i < hw->mac.mcft_size; i++)
+ wr32(hw, TXGBE_MCADDRTBL(i), 0);
+
+ txgbe_init_uta_tables(hw);
+
+ return 0;
+}
+
+/**
+ * txgbe_mta_vector - Determines bit-vector in multicast table to set
+ * @hw: pointer to hardware structure
+ * @mc_addr: the multicast address
+ *
+ * Extracts the 12 bits, from a multicast address, to determine which
+ * 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 PSRCTRL. The MO field is set during initialization
+ * to mc_filter_type.
+ **/
+static s32 txgbe_mta_vector(struct txgbe_hw *hw, u8 *mc_addr)
+{
+ u32 vector = 0;
+
+ DEBUGFUNC("txgbe_mta_vector");
+
+ switch (hw->mac.mc_filter_type) {
+ case 0: /* use bits [47:36] of the address */
+ vector = ((mc_addr[4] >> 4) | (((u16)mc_addr[5]) << 4));
break;
- default:
- status = TXGBE_ERR_DEVICE_NOT_SUPPORTED;
+ 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 */
+ vector = ((mc_addr[4] >> 2) | (((u16)mc_addr[5]) << 6));
break;
+ case 3: /* use bits [43:32] of the address */
+ vector = ((mc_addr[4]) | (((u16)mc_addr[5]) << 8));
+ break;
+ default: /* Invalid mc_filter_type */
+ DEBUGOUT("MC filter type param set incorrectly\n");
+ ASSERT(0);
+ break;
+ }
+
+ /* vector can only be 12-bits or boundary will be exceeded */
+ vector &= 0xFFF;
+ return vector;
+}
+
+/**
+ * txgbe_set_mta - Set bit-vector in multicast table
+ * @hw: pointer to hardware structure
+ * @mc_addr: Multicast address
+ *
+ * Sets the bit-vector in the multicast table.
+ **/
+void txgbe_set_mta(struct txgbe_hw *hw, u8 *mc_addr)
+{
+ u32 vector;
+ u32 vector_bit;
+ u32 vector_reg;
+
+ DEBUGFUNC("txgbe_set_mta");
+
+ hw->addr_ctrl.mta_in_use++;
+
+ vector = txgbe_mta_vector(hw, mc_addr);
+ DEBUGOUT(" bit-vector = 0x%03X\n", vector);
+
+ /*
+ * The MTA is a register array of 128 32-bit registers. It is treated
+ * like an array of 4096 bits. We want to set bit
+ * BitArray[vector_value]. So we figure out what register the bit is
+ * in, read it, OR in the new bit, then write back the new value. The
+ * register is determined by the upper 7 bits of the vector value and
+ * the bit within that register are determined by the lower 5 bits of
+ * the value.
+ */
+ vector_reg = (vector >> 5) & 0x7F;
+ vector_bit = vector & 0x1F;
+ hw->mac.mta_shadow[vector_reg] |= (1 << vector_bit);
+}
+
+/**
+ * txgbe_update_mc_addr_list - 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
+ * @clear: flag, when set clears the table beforehand
+ *
+ * When the clear flag is set, the given list replaces any existing list.
+ * Hashes the given addresses into the multicast table.
+ **/
+s32 txgbe_update_mc_addr_list(struct txgbe_hw *hw, u8 *mc_addr_list,
+ u32 mc_addr_count, txgbe_mc_addr_itr next,
+ bool clear)
+{
+ u32 i;
+ u32 vmdq;
+
+ DEBUGFUNC("txgbe_update_mc_addr_list");
+
+ /*
+ * Set the new number of MC addresses that we are being requested to
+ * use.
+ */
+ hw->addr_ctrl.num_mc_addrs = mc_addr_count;
+ hw->addr_ctrl.mta_in_use = 0;
+
+ /* Clear mta_shadow */
+ if (clear) {
+ DEBUGOUT(" Clearing MTA\n");
+ memset(&hw->mac.mta_shadow, 0, sizeof(hw->mac.mta_shadow));
+ }
+
+ /* Update mta_shadow */
+ for (i = 0; i < mc_addr_count; i++) {
+ DEBUGOUT(" Adding the multicast addresses:\n");
+ txgbe_set_mta(hw, next(hw, &mc_addr_list, &vmdq));
+ }
+
+ /* Enable mta */
+ for (i = 0; i < hw->mac.mcft_size; i++)
+ wr32a(hw, TXGBE_MCADDRTBL(0), i,
+ hw->mac.mta_shadow[i]);
+
+ if (hw->addr_ctrl.mta_in_use > 0) {
+ u32 psrctl = rd32(hw, TXGBE_PSRCTL);
+ psrctl &= ~(TXGBE_PSRCTL_ADHF12_MASK | TXGBE_PSRCTL_MCHFENA);
+ psrctl |= TXGBE_PSRCTL_MCHFENA |
+ TXGBE_PSRCTL_ADHF12(hw->mac.mc_filter_type);
+ wr32(hw, TXGBE_PSRCTL, psrctl);
+ }
+
+ DEBUGOUT("txgbe update mc addr list complete\n");
+ return 0;
+}
+
+/**
+ * txgbe_fc_enable - Enable flow control
+ * @hw: pointer to hardware structure
+ *
+ * Enable flow control according to the current settings.
+ **/
+s32 txgbe_fc_enable(struct txgbe_hw *hw)
+{
+ s32 err = 0;
+ u32 mflcn_reg, fccfg_reg;
+ u32 pause_time;
+ u32 fcrtl, fcrth;
+ int i;
+
+ DEBUGFUNC("txgbe_fc_enable");
+
+ /* Validate the water mark configuration */
+ if (!hw->fc.pause_time) {
+ err = TXGBE_ERR_INVALID_LINK_SETTINGS;
+ goto out;
+ }
+
+ /* Low water mark of zero causes XOFF floods */
+ for (i = 0; i < TXGBE_DCB_TC_MAX; i++) {
+ if ((hw->fc.current_mode & txgbe_fc_tx_pause) &&
+ hw->fc.high_water[i]) {
+ if (!hw->fc.low_water[i] ||
+ hw->fc.low_water[i] >= hw->fc.high_water[i]) {
+ DEBUGOUT("Invalid water mark configuration\n");
+ err = TXGBE_ERR_INVALID_LINK_SETTINGS;
+ goto out;
+ }
+ }
+ }
+
+ /* Negotiate the fc mode to use */
+ hw->mac.fc_autoneg(hw);
+
+ /* Disable any previous flow control settings */
+ mflcn_reg = rd32(hw, TXGBE_RXFCCFG);
+ mflcn_reg &= ~(TXGBE_RXFCCFG_FC | TXGBE_RXFCCFG_PFC);
+
+ fccfg_reg = rd32(hw, TXGBE_TXFCCFG);
+ fccfg_reg &= ~(TXGBE_TXFCCFG_FC | TXGBE_TXFCCFG_PFC);
+
+ /*
+ * 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.
+ * other: Invalid.
+ */
+ switch (hw->fc.current_mode) {
+ case txgbe_fc_none:
+ /*
+ * Flow control is disabled by software override or autoneg.
+ * The code below will actually disable it in the HW.
+ */
+ break;
+ case txgbe_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 |= TXGBE_RXFCCFG_FC;
+ break;
+ case txgbe_fc_tx_pause:
+ /*
+ * Tx Flow control is enabled, and Rx Flow control is
+ * disabled by software override.
+ */
+ fccfg_reg |= TXGBE_TXFCCFG_FC;
+ break;
+ case txgbe_fc_full:
+ /* Flow control (both Rx and Tx) is enabled by SW override. */
+ mflcn_reg |= TXGBE_RXFCCFG_FC;
+ fccfg_reg |= TXGBE_TXFCCFG_FC;
+ break;
+ default:
+ DEBUGOUT("Flow control param set incorrectly\n");
+ err = TXGBE_ERR_CONFIG;
+ goto out;
+ }
+
+ /* Set 802.3x based flow control settings. */
+ wr32(hw, TXGBE_RXFCCFG, mflcn_reg);
+ wr32(hw, TXGBE_TXFCCFG, fccfg_reg);
+
+ /* Set up and enable Rx high/low water mark thresholds, enable XON. */
+ for (i = 0; i < TXGBE_DCB_TC_MAX; i++) {
+ if ((hw->fc.current_mode & txgbe_fc_tx_pause) &&
+ hw->fc.high_water[i]) {
+ fcrtl = TXGBE_FCWTRLO_TH(hw->fc.low_water[i]) |
+ TXGBE_FCWTRLO_XON;
+ fcrth = TXGBE_FCWTRHI_TH(hw->fc.high_water[i]) |
+ TXGBE_FCWTRHI_XOFF;
+ } else {
+ /*
+ * In order to prevent Tx hangs when the internal Tx
+ * switch is enabled we must set the high water mark
+ * to the Rx packet buffer size - 24KB. This allows
+ * the Tx switch to function even under heavy Rx
+ * workloads.
+ */
+ fcrtl = 0;
+ fcrth = rd32(hw, TXGBE_PBRXSIZE(i)) - 24576;
+ }
+ wr32(hw, TXGBE_FCWTRLO(i), fcrtl);
+ wr32(hw, TXGBE_FCWTRHI(i), fcrth);
+ }
+
+ /* Configure pause time (2 TCs per register) */
+ pause_time = TXGBE_RXFCFSH_TIME(hw->fc.pause_time);
+ for (i = 0; i < (TXGBE_DCB_TC_MAX / 2); i++)
+ wr32(hw, TXGBE_FCXOFFTM(i), pause_time * 0x00010001);
+
+ /* Configure flow control refresh threshold value */
+ wr32(hw, TXGBE_RXFCRFSH, hw->fc.pause_time / 2);
+
+out:
+ return err;
+}
+
+/**
+ * txgbe_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
+ **/
+s32 txgbe_negotiate_fc(struct txgbe_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))) {
+ DEBUGOUT("Local or link partner's advertised flow control "
+ "settings are NULL. Local: %x, link partner: %x\n",
+ adv_reg, lp_reg);
+ return TXGBE_ERR_FC_NOT_NEGOTIATED;
+ }
+
+ if ((adv_reg & adv_sym) && (lp_reg & lp_sym)) {
+ /*
+ * 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 == txgbe_fc_full) {
+ hw->fc.current_mode = txgbe_fc_full;
+ DEBUGOUT("Flow Control = FULL.\n");
+ } else {
+ hw->fc.current_mode = txgbe_fc_rx_pause;
+ DEBUGOUT("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 = txgbe_fc_tx_pause;
+ DEBUGOUT("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 = txgbe_fc_rx_pause;
+ DEBUGOUT("Flow Control = RX PAUSE frames only.\n");
+ } else {
+ hw->fc.current_mode = txgbe_fc_none;
+ DEBUGOUT("Flow Control = NONE.\n");
+ }
+ return 0;
+}
+
+/**
+ * txgbe_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 txgbe_fc_autoneg_fiber(struct txgbe_hw *hw)
+{
+ u32 pcs_anadv_reg, pcs_lpab_reg;
+ s32 err = TXGBE_ERR_FC_NOT_NEGOTIATED;
+
+ /*
+ * 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
+ */
+
+ pcs_anadv_reg = rd32_epcs(hw, SR_MII_MMD_AN_ADV);
+ pcs_lpab_reg = rd32_epcs(hw, SR_MII_MMD_LP_BABL);
+
+ err = txgbe_negotiate_fc(hw, pcs_anadv_reg,
+ pcs_lpab_reg,
+ SR_MII_MMD_AN_ADV_PAUSE_SYM,
+ SR_MII_MMD_AN_ADV_PAUSE_ASM,
+ SR_MII_MMD_AN_ADV_PAUSE_SYM,
+ SR_MII_MMD_AN_ADV_PAUSE_ASM);
+
+ return err;
+}
+
+/**
+ * txgbe_fc_autoneg_backplane - Enable flow control IEEE clause 37
+ * @hw: pointer to hardware structure
+ *
+ * Enable flow control according to IEEE clause 37.
+ **/
+STATIC s32 txgbe_fc_autoneg_backplane(struct txgbe_hw *hw)
+{
+ u32 anlp1_reg, autoc_reg;
+ s32 err = TXGBE_ERR_FC_NOT_NEGOTIATED;
+
+ /*
+ * Read the 10g AN autoc and LP ability registers and resolve
+ * local flow control settings accordingly
+ */
+ autoc_reg = rd32_epcs(hw, SR_AN_MMD_ADV_REG1);
+ anlp1_reg = rd32_epcs(hw, SR_AN_MMD_LP_ABL1);
+
+ err = txgbe_negotiate_fc(hw, autoc_reg,
+ anlp1_reg,
+ SR_AN_MMD_ADV_REG1_PAUSE_SYM,
+ SR_AN_MMD_ADV_REG1_PAUSE_ASM,
+ SR_AN_MMD_ADV_REG1_PAUSE_SYM,
+ SR_AN_MMD_ADV_REG1_PAUSE_ASM);
+
+ return err;
+}
+
+/**
+ * txgbe_fc_autoneg_copper - Enable flow control IEEE clause 37
+ * @hw: pointer to hardware structure
+ *
+ * Enable flow control according to IEEE clause 37.
+ **/
+STATIC s32 txgbe_fc_autoneg_copper(struct txgbe_hw *hw)
+{
+ u16 technology_ability_reg = 0;
+ u16 lp_technology_ability_reg = 0;
+
+ hw->phy.read_reg(hw, TXGBE_MD_AUTO_NEG_ADVT,
+ TXGBE_MD_DEV_AUTO_NEG,
+ &technology_ability_reg);
+ hw->phy.read_reg(hw, TXGBE_MD_AUTO_NEG_LP,
+ TXGBE_MD_DEV_AUTO_NEG,
+ &lp_technology_ability_reg);
+
+ return txgbe_negotiate_fc(hw, (u32)technology_ability_reg,
+ (u32)lp_technology_ability_reg,
+ TXGBE_TAF_SYM_PAUSE, TXGBE_TAF_ASM_PAUSE,
+ TXGBE_TAF_SYM_PAUSE, TXGBE_TAF_ASM_PAUSE);
+}
+
+/**
+ * txgbe_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.
+ **/
+void txgbe_fc_autoneg(struct txgbe_hw *hw)
+{
+ s32 err = TXGBE_ERR_FC_NOT_NEGOTIATED;
+ u32 speed;
+ bool link_up;
+
+ DEBUGFUNC("txgbe_fc_autoneg");
+
+ /*
+ * 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.
+ */
+ if (hw->fc.disable_fc_autoneg) {
+ DEBUGOUT("Flow control autoneg is disabled");
+ goto out;
+ }
+
+ hw->mac.check_link(hw, &speed, &link_up, false);
+ if (!link_up) {
+ DEBUGOUT("The link is down");
+ goto out;
+ }
+
+ switch (hw->phy.media_type) {
+ /* Autoneg flow control on fiber adapters */
+ case txgbe_media_type_fiber_qsfp:
+ case txgbe_media_type_fiber:
+ if (speed == TXGBE_LINK_SPEED_1GB_FULL)
+ err = txgbe_fc_autoneg_fiber(hw);
+ break;
+
+ /* Autoneg flow control on backplane adapters */
+ case txgbe_media_type_backplane:
+ err = txgbe_fc_autoneg_backplane(hw);
+ break;
+
+ /* Autoneg flow control on copper adapters */
+ case txgbe_media_type_copper:
+ if (txgbe_device_supports_autoneg_fc(hw))
+ err = txgbe_fc_autoneg_copper(hw);
+ break;
+
+ default:
+ break;
+ }
+
+out:
+ if (err == 0) {
+ hw->fc.fc_was_autonegged = true;
+ } else {
+ hw->fc.fc_was_autonegged = false;
+ hw->fc.current_mode = hw->fc.requested_mode;
+ }
+}
+
+/**
+ * txgbe_acquire_swfw_sync - Acquire SWFW semaphore
+ * @hw: pointer to hardware structure
+ * @mask: Mask to specify which semaphore to acquire
+ *
+ * Acquires the SWFW semaphore through the MNGSEM register for the specified
+ * function (CSR, PHY0, PHY1, EEPROM, Flash)
+ **/
+s32 txgbe_acquire_swfw_sync(struct txgbe_hw *hw, u32 mask)
+{
+ u32 mngsem = 0;
+ u32 swmask = TXGBE_MNGSEM_SW(mask);
+ u32 fwmask = TXGBE_MNGSEM_FW(mask);
+ u32 timeout = 200;
+ u32 i;
+
+ DEBUGFUNC("txgbe_acquire_swfw_sync");
+
+ for (i = 0; i < timeout; i++) {
+ /*
+ * SW NVM semaphore bit is used for access to all
+ * SW_FW_SYNC bits (not just NVM)
+ */
+ if (txgbe_get_eeprom_semaphore(hw))
+ return TXGBE_ERR_SWFW_SYNC;
+
+ mngsem = rd32(hw, TXGBE_MNGSEM);
+ if (mngsem & (fwmask | swmask)) {
+ /* Resource is currently in use by FW or SW */
+ txgbe_release_eeprom_semaphore(hw);
+ msec_delay(5);
+ } else {
+ mngsem |= swmask;
+ wr32(hw, TXGBE_MNGSEM, mngsem);
+ txgbe_release_eeprom_semaphore(hw);
+ return 0;
+ }
+ }
+
+ /* If time expired clear the bits holding the lock and retry */
+ if (mngsem & (fwmask | swmask))
+ txgbe_release_swfw_sync(hw, mngsem & (fwmask | swmask));
+
+ msec_delay(5);
+ return TXGBE_ERR_SWFW_SYNC;
+}
+
+/**
+ * txgbe_release_swfw_sync - Release SWFW semaphore
+ * @hw: pointer to hardware structure
+ * @mask: Mask to specify which semaphore to release
+ *
+ * Releases the SWFW semaphore through the MNGSEM register for the specified
+ * function (CSR, PHY0, PHY1, EEPROM, Flash)
+ **/
+void txgbe_release_swfw_sync(struct txgbe_hw *hw, u32 mask)
+{
+ u32 mngsem;
+ u32 swmask = mask;
+
+ DEBUGFUNC("txgbe_release_swfw_sync");
+
+ txgbe_get_eeprom_semaphore(hw);
+
+ mngsem = rd32(hw, TXGBE_MNGSEM);
+ mngsem &= ~swmask;
+ wr32(hw, TXGBE_MNGSEM, mngsem);
+
+ txgbe_release_eeprom_semaphore(hw);
+}
+
+/**
+ * txgbe_disable_sec_rx_path - Stops the receive data path
+ * @hw: pointer to hardware structure
+ *
+ * Stops the receive data path and waits for the HW to internally empty
+ * the Rx security block
+ **/
+s32 txgbe_disable_sec_rx_path(struct txgbe_hw *hw)
+{
+#define TXGBE_MAX_SECRX_POLL 4000
+
+ int i;
+ u32 secrxreg;
+
+ DEBUGFUNC("txgbe_disable_sec_rx_path");
+
+ secrxreg = rd32(hw, TXGBE_SECRXCTL);
+ secrxreg |= TXGBE_SECRXCTL_XDSA;
+ wr32(hw, TXGBE_SECRXCTL, secrxreg);
+ for (i = 0; i < TXGBE_MAX_SECRX_POLL; i++) {
+ secrxreg = rd32(hw, TXGBE_SECRXSTAT);
+ if (!(secrxreg & TXGBE_SECRXSTAT_RDY))
+ /* Use interrupt-safe sleep just in case */
+ usec_delay(10);
+ else
+ break;
+ }
+
+ /* For informational purposes only */
+ if (i >= TXGBE_MAX_SECRX_POLL)
+ DEBUGOUT("Rx unit being enabled before security "
+ "path fully disabled. Continuing with init.\n");
+
+ return 0;
+}
+
+/**
+ * txgbe_enable_sec_rx_path - Enables the receive data path
+ * @hw: pointer to hardware structure
+ *
+ * Enables the receive data path.
+ **/
+s32 txgbe_enable_sec_rx_path(struct txgbe_hw *hw)
+{
+ u32 secrxreg;
+
+ DEBUGFUNC("txgbe_enable_sec_rx_path");
+
+ secrxreg = rd32(hw, TXGBE_SECRXCTL);
+ secrxreg &= ~TXGBE_SECRXCTL_XDSA;
+ wr32(hw, TXGBE_SECRXCTL, secrxreg);
+ txgbe_flush(hw);
+
+ return 0;
+}
+
+/**
+ * txgbe_disable_sec_tx_path - Stops the transmit data path
+ * @hw: pointer to hardware structure
+ *
+ * Stops the transmit data path and waits for the HW to internally empty
+ * the Tx security block
+ **/
+int txgbe_disable_sec_tx_path(struct txgbe_hw *hw)
+{
+#define TXGBE_MAX_SECTX_POLL 40
+
+ int i;
+ u32 sectxreg;
+
+ sectxreg = rd32(hw, TXGBE_SECTXCTL);
+ sectxreg |= TXGBE_SECTXCTL_XDSA;
+ wr32(hw, TXGBE_SECTXCTL, sectxreg);
+ for (i = 0; i < TXGBE_MAX_SECTX_POLL; i++) {
+ sectxreg = rd32(hw, TXGBE_SECTXSTAT);
+ if (sectxreg & TXGBE_SECTXSTAT_RDY)
+ break;
+ /* Use interrupt-safe sleep just in case */
+ usec_delay(1000);
+ }
+
+ /* For informational purposes only */
+ if (i >= TXGBE_MAX_SECTX_POLL)
+ PMD_DRV_LOG(DEBUG, "Tx unit being enabled before security "
+ "path fully disabled. Continuing with init.");
+
+ return 0;
+}
+
+/**
+ * txgbe_enable_sec_tx_path - Enables the transmit data path
+ * @hw: pointer to hardware structure
+ *
+ * Enables the transmit data path.
+ **/
+int txgbe_enable_sec_tx_path(struct txgbe_hw *hw)
+{
+ uint32_t sectxreg;
+
+ sectxreg = rd32(hw, TXGBE_SECTXCTL);
+ sectxreg &= ~TXGBE_SECTXCTL_XDSA;
+ wr32(hw, TXGBE_SECTXCTL, sectxreg);
+ txgbe_flush(hw);
+
+ return 0;
+}
+
+/**
+ * txgbe_get_san_mac_addr_offset - Get SAN MAC address offset from the EEPROM
+ * @hw: pointer to hardware structure
+ * @san_mac_offset: SAN MAC address offset
+ *
+ * This function will read the EEPROM location for the SAN MAC address
+ * pointer, and returns the value at that location. This is used in both
+ * get and set mac_addr routines.
+ **/
+static s32 txgbe_get_san_mac_addr_offset(struct txgbe_hw *hw,
+ u16 *san_mac_offset)
+{
+ s32 err;
+
+ DEBUGFUNC("txgbe_get_san_mac_addr_offset");
+
+ /*
+ * First read the EEPROM pointer to see if the MAC addresses are
+ * available.
+ */
+ err = hw->rom.readw_sw(hw, TXGBE_SAN_MAC_ADDR_PTR,
+ san_mac_offset);
+ if (err) {
+ DEBUGOUT("eeprom at offset %d failed",
+ TXGBE_SAN_MAC_ADDR_PTR);
+ }
+
+ return err;
+}
+
+/**
+ * txgbe_get_san_mac_addr - SAN MAC address retrieval from the EEPROM
+ * @hw: pointer to hardware structure
+ * @san_mac_addr: SAN MAC address
+ *
+ * Reads the SAN MAC address from the EEPROM, if it's available. This is
+ * per-port, so set_lan_id() must be called before reading the addresses.
+ * set_lan_id() is called by identify_sfp(), but this cannot be relied
+ * upon for non-SFP connections, so we must call it here.
+ **/
+s32 txgbe_get_san_mac_addr(struct txgbe_hw *hw, u8 *san_mac_addr)
+{
+ u16 san_mac_data, san_mac_offset;
+ u8 i;
+ s32 err;
+
+ DEBUGFUNC("txgbe_get_san_mac_addr");
+
+ /*
+ * First read the EEPROM pointer to see if the MAC addresses are
+ * available. If they're not, no point in calling set_lan_id() here.
+ */
+ err = txgbe_get_san_mac_addr_offset(hw, &san_mac_offset);
+ if (err || san_mac_offset == 0 || san_mac_offset == 0xFFFF)
+ goto san_mac_addr_out;
+
+ /* apply the port offset to the address offset */
+ (hw->bus.func) ? (san_mac_offset += TXGBE_SAN_MAC_ADDR_PORT1_OFFSET) :
+ (san_mac_offset += TXGBE_SAN_MAC_ADDR_PORT0_OFFSET);
+ for (i = 0; i < 3; i++) {
+ err = hw->rom.read16(hw, san_mac_offset,
+ &san_mac_data);
+ if (err) {
+ DEBUGOUT("eeprom read at offset %d failed",
+ san_mac_offset);
+ goto san_mac_addr_out;
+ }
+ san_mac_addr[i * 2] = (u8)(san_mac_data);
+ san_mac_addr[i * 2 + 1] = (u8)(san_mac_data >> 8);
+ san_mac_offset++;
+ }
+ return 0;
+
+san_mac_addr_out:
+ /*
+ * No addresses available in this EEPROM. It's not an
+ * error though, so just wipe the local address and return.
+ */
+ for (i = 0; i < 6; i++)
+ san_mac_addr[i] = 0xFF;
+ return 0;
+}
+
+/**
+ * txgbe_set_san_mac_addr - Write the SAN MAC address to the EEPROM
+ * @hw: pointer to hardware structure
+ * @san_mac_addr: SAN MAC address
+ *
+ * Write a SAN MAC address to the EEPROM.
+ **/
+s32 txgbe_set_san_mac_addr(struct txgbe_hw *hw, u8 *san_mac_addr)
+{
+ s32 err;
+ u16 san_mac_data, san_mac_offset;
+ u8 i;
+
+ DEBUGFUNC("txgbe_set_san_mac_addr");
+
+ /* Look for SAN mac address pointer. If not defined, return */
+ err = txgbe_get_san_mac_addr_offset(hw, &san_mac_offset);
+ if (err || san_mac_offset == 0 || san_mac_offset == 0xFFFF)
+ return TXGBE_ERR_NO_SAN_ADDR_PTR;
+
+ /* Apply the port offset to the address offset */
+ (hw->bus.func) ? (san_mac_offset += TXGBE_SAN_MAC_ADDR_PORT1_OFFSET) :
+ (san_mac_offset += TXGBE_SAN_MAC_ADDR_PORT0_OFFSET);
+
+ for (i = 0; i < 3; i++) {
+ san_mac_data = (u16)((u16)(san_mac_addr[i * 2 + 1]) << 8);
+ san_mac_data |= (u16)(san_mac_addr[i * 2]);
+ hw->rom.write16(hw, san_mac_offset, san_mac_data);
+ san_mac_offset++;
+ }
+
+ return 0;
+}
+
+/**
+ * txgbe_clear_vmdq - Disassociate a VMDq pool index from a rx address
+ * @hw: pointer to hardware struct
+ * @rar: receive address register index to disassociate
+ * @vmdq: VMDq pool index to remove from the rar
+ **/
+s32 txgbe_clear_vmdq(struct txgbe_hw *hw, u32 rar, u32 vmdq)
+{
+ u32 mpsar_lo, mpsar_hi;
+ u32 rar_entries = hw->mac.num_rar_entries;
+
+ DEBUGFUNC("txgbe_clear_vmdq");
+
+ /* Make sure we are using a valid rar index range */
+ if (rar >= rar_entries) {
+ DEBUGOUT("RAR index %d is out of range.\n", rar);
+ return TXGBE_ERR_INVALID_ARGUMENT;
+ }
+
+ wr32(hw, TXGBE_ETHADDRIDX, rar);
+ mpsar_lo = rd32(hw, TXGBE_ETHADDRASSL);
+ mpsar_hi = rd32(hw, TXGBE_ETHADDRASSH);
+
+ if (TXGBE_REMOVED(hw->hw_addr))
+ goto done;
+
+ if (!mpsar_lo && !mpsar_hi)
+ goto done;
+
+ if (vmdq == BIT_MASK32) {
+ if (mpsar_lo) {
+ wr32(hw, TXGBE_ETHADDRASSL, 0);
+ mpsar_lo = 0;
+ }
+ if (mpsar_hi) {
+ wr32(hw, TXGBE_ETHADDRASSH, 0);
+ mpsar_hi = 0;
+ }
+ } else if (vmdq < 32) {
+ mpsar_lo &= ~(1 << vmdq);
+ wr32(hw, TXGBE_ETHADDRASSL, mpsar_lo);
+ } else {
+ mpsar_hi &= ~(1 << (vmdq - 32));
+ wr32(hw, TXGBE_ETHADDRASSH, mpsar_hi);
+ }
+
+ /* was that the last pool using this rar? */
+ if (mpsar_lo == 0 && mpsar_hi == 0 &&
+ rar != 0 && rar != hw->mac.san_mac_rar_index)
+ hw->mac.clear_rar(hw, rar);
+done:
+ return 0;
+}
+
+/**
+ * txgbe_set_vmdq - Associate a VMDq pool index with a rx address
+ * @hw: pointer to hardware struct
+ * @rar: receive address register index to associate with a VMDq index
+ * @vmdq: VMDq pool index
+ **/
+s32 txgbe_set_vmdq(struct txgbe_hw *hw, u32 rar, u32 vmdq)
+{
+ u32 mpsar;
+ u32 rar_entries = hw->mac.num_rar_entries;
+
+ DEBUGFUNC("txgbe_set_vmdq");
+
+ /* Make sure we are using a valid rar index range */
+ if (rar >= rar_entries) {
+ DEBUGOUT("RAR index %d is out of range.\n", rar);
+ return TXGBE_ERR_INVALID_ARGUMENT;
+ }
+
+ wr32(hw, TXGBE_ETHADDRIDX, rar);
+ if (vmdq < 32) {
+ mpsar = rd32(hw, TXGBE_ETHADDRASSL);
+ mpsar |= 1 << vmdq;
+ wr32(hw, TXGBE_ETHADDRASSL, mpsar);
+ } else {
+ mpsar = rd32(hw, TXGBE_ETHADDRASSH);
+ mpsar |= 1 << (vmdq - 32);
+ wr32(hw, TXGBE_ETHADDRASSH, mpsar);
+ }
+ return 0;
+}
+
+/**
+ * txgbe_init_uta_tables - Initialize the Unicast Table Array
+ * @hw: pointer to hardware structure
+ **/
+s32 txgbe_init_uta_tables(struct txgbe_hw *hw)
+{
+ int i;
+
+ DEBUGFUNC("txgbe_init_uta_tables");
+ DEBUGOUT(" Clearing UTA\n");
+
+ for (i = 0; i < 128; i++)
+ wr32(hw, TXGBE_UCADDRTBL(i), 0);
+
+ return 0;
+}
+
+/**
+ * txgbe_find_vlvf_slot - find the vlanid or the first empty slot
+ * @hw: pointer to hardware structure
+ * @vlan: VLAN id to write to VLAN filter
+ * @vlvf_bypass: true to find vlanid only, false returns first empty slot if
+ * vlanid not found
+ *
+ *
+ * return the VLVF index where this VLAN id should be placed
+ *
+ **/
+s32 txgbe_find_vlvf_slot(struct txgbe_hw *hw, u32 vlan, bool vlvf_bypass)
+{
+ s32 regindex, first_empty_slot;
+ u32 bits;
+
+ /* short cut the special case */
+ if (vlan == 0)
+ return 0;
+
+ /* if vlvf_bypass is set we don't want to use an empty slot, we
+ * will simply bypass the VLVF if there are no entries present in the
+ * VLVF that contain our VLAN
+ */
+ first_empty_slot = vlvf_bypass ? TXGBE_ERR_NO_SPACE : 0;
+
+ /* add VLAN enable bit for comparison */
+ vlan |= TXGBE_PSRVLAN_EA;
+
+ /* Search for the vlan id in the VLVF entries. Save off the first empty
+ * slot found along the way.
+ *
+ * pre-decrement loop covering (TXGBE_NUM_POOL - 1) .. 1
+ */
+ for (regindex = TXGBE_NUM_POOL; --regindex;) {
+ wr32(hw, TXGBE_PSRVLANIDX, regindex);
+ bits = rd32(hw, TXGBE_PSRVLAN);
+ if (bits == vlan)
+ return regindex;
+ if (!first_empty_slot && !bits)
+ first_empty_slot = regindex;
+ }
+
+ /* If we are here then we didn't find the VLAN. Return first empty
+ * slot we found during our search, else error.
+ */
+ if (!first_empty_slot)
+ DEBUGOUT("No space in VLVF.\n");
+
+ return first_empty_slot ? first_empty_slot : TXGBE_ERR_NO_SPACE;
+}
+
+/**
+ * txgbe_set_vfta - Set VLAN filter table
+ * @hw: pointer to hardware structure
+ * @vlan: VLAN id to write to VLAN filter
+ * @vind: VMDq output index that maps queue to VLAN id in VLVFB
+ * @vlan_on: boolean flag to turn on/off VLAN
+ * @vlvf_bypass: boolean flag indicating updating default pool is okay
+ *
+ * Turn on/off specified VLAN in the VLAN filter table.
+ **/
+s32 txgbe_set_vfta(struct txgbe_hw *hw, u32 vlan, u32 vind,
+ bool vlan_on, bool vlvf_bypass)
+{
+ u32 regidx, vfta_delta, vfta;
+ s32 err;
+
+ DEBUGFUNC("txgbe_set_vfta");
+
+ if (vlan > 4095 || vind > 63)
+ return TXGBE_ERR_PARAM;
+
+ /*
+ * this is a 2 part operation - first the VFTA, then the
+ * VLVF and VLVFB if VT Mode is set
+ * We don't write the VFTA until we know the VLVF part succeeded.
+ */
+
+ /* Part 1
+ * The VFTA is a bitstring made up of 128 32-bit registers
+ * that enable the particular VLAN id, much like the MTA:
+ * bits[11-5]: which register
+ * bits[4-0]: which bit in the register
+ */
+ regidx = vlan / 32;
+ vfta_delta = 1 << (vlan % 32);
+ vfta = rd32(hw, TXGBE_VLANTBL(regidx));
+
+ /*
+ * vfta_delta represents the difference between the current value
+ * of vfta and the value we want in the register. Since the diff
+ * is an XOR mask we can just update the vfta using an XOR
+ */
+ vfta_delta &= vlan_on ? ~vfta : vfta;
+ vfta ^= vfta_delta;
+
+ /* Part 2
+ * Call txgbe_set_vlvf to set VLVFB and VLVF
+ */
+ err = txgbe_set_vlvf(hw, vlan, vind, vlan_on, &vfta_delta,
+ vfta, vlvf_bypass);
+ if (err != 0) {
+ if (vlvf_bypass)
+ goto vfta_update;
+ return err;
+ }
+
+vfta_update:
+ /* Update VFTA now that we are ready for traffic */
+ if (vfta_delta)
+ wr32(hw, TXGBE_VLANTBL(regidx), vfta);
+
+ return 0;
+}
+
+/**
+ * txgbe_set_vlvf - Set VLAN Pool Filter
+ * @hw: pointer to hardware structure
+ * @vlan: VLAN id to write to VLAN filter
+ * @vind: VMDq output index that maps queue to VLAN id in PSRVLANPLM
+ * @vlan_on: boolean flag to turn on/off VLAN in PSRVLAN
+ * @vfta_delta: pointer to the difference between the current value
+ * of PSRVLANPLM and the desired value
+ * @vfta: the desired value of the VFTA
+ * @vlvf_bypass: boolean flag indicating updating default pool is okay
+ *
+ * Turn on/off specified bit in VLVF table.
+ **/
+s32 txgbe_set_vlvf(struct txgbe_hw *hw, u32 vlan, u32 vind,
+ bool vlan_on, u32 *vfta_delta, u32 vfta,
+ bool vlvf_bypass)
+{
+ u32 bits;
+ u32 portctl;
+ s32 vlvf_index;
+
+ DEBUGFUNC("txgbe_set_vlvf");
+
+ if (vlan > 4095 || vind > 63)
+ return TXGBE_ERR_PARAM;
+
+ /* If VT Mode is set
+ * Either vlan_on
+ * make sure the vlan is in PSRVLAN
+ * set the vind bit in the matching PSRVLANPLM
+ * Or !vlan_on
+ * clear the pool bit and possibly the vind
+ */
+ portctl = rd32(hw, TXGBE_PORTCTL);
+ if (!(portctl & TXGBE_PORTCTL_NUMVT_MASK))
+ return 0;
+
+ vlvf_index = txgbe_find_vlvf_slot(hw, vlan, vlvf_bypass);
+ if (vlvf_index < 0)
+ return vlvf_index;
+
+ wr32(hw, TXGBE_PSRVLANIDX, vlvf_index);
+ bits = rd32(hw, TXGBE_PSRVLANPLM(vind / 32));
+
+ /* set the pool bit */
+ bits |= 1 << (vind % 32);
+ if (vlan_on)
+ goto vlvf_update;
+
+ /* clear the pool bit */
+ bits ^= 1 << (vind % 32);
+
+ if (!bits &&
+ !rd32(hw, TXGBE_PSRVLANPLM(vind / 32))) {
+ /* Clear PSRVLANPLM first, then disable PSRVLAN. Otherwise
+ * we run the risk of stray packets leaking into
+ * the PF via the default pool
+ */
+ if (*vfta_delta)
+ wr32(hw, TXGBE_PSRVLANPLM(vlan / 32), vfta);
+
+ /* disable VLVF and clear remaining bit from pool */
+ wr32(hw, TXGBE_PSRVLAN, 0);
+ wr32(hw, TXGBE_PSRVLANPLM(vind / 32), 0);
+
+ return 0;
+ }
+
+ /* If there are still bits set in the PSRVLANPLM registers
+ * for the VLAN ID indicated we need to see if the
+ * caller is requesting that we clear the PSRVLANPLM entry bit.
+ * If the caller has requested that we clear the PSRVLANPLM
+ * entry bit but there are still pools/VFs using this VLAN
+ * ID entry then ignore the request. We're not worried
+ * about the case where we're turning the PSRVLANPLM VLAN ID
+ * entry bit on, only when requested to turn it off as
+ * there may be multiple pools and/or VFs using the
+ * VLAN ID entry. In that case we cannot clear the
+ * PSRVLANPLM bit until all pools/VFs using that VLAN ID have also
+ * been cleared. This will be indicated by "bits" being
+ * zero.
+ */
+ *vfta_delta = 0;
+
+vlvf_update:
+ /* record pool change and enable VLAN ID if not already enabled */
+ wr32(hw, TXGBE_PSRVLANPLM(vind / 32), bits);
+ wr32(hw, TXGBE_PSRVLAN, TXGBE_PSRVLAN_EA | vlan);
+
+ return 0;
+}
+
+/**
+ * txgbe_clear_vfta - Clear VLAN filter table
+ * @hw: pointer to hardware structure
+ *
+ * Clears the VLAN filer table, and the VMDq index associated with the filter
+ **/
+s32 txgbe_clear_vfta(struct txgbe_hw *hw)
+{
+ u32 offset;
+
+ DEBUGFUNC("txgbe_clear_vfta");
+
+ for (offset = 0; offset < hw->mac.vft_size; offset++)
+ wr32(hw, TXGBE_VLANTBL(offset), 0);
+
+ for (offset = 0; offset < TXGBE_NUM_POOL; offset++) {
+ wr32(hw, TXGBE_PSRVLANIDX, offset);
+ wr32(hw, TXGBE_PSRVLAN, 0);
+ wr32(hw, TXGBE_PSRVLANPLM(0), 0);
+ wr32(hw, TXGBE_PSRVLANPLM(1), 0);
+ }
+
+ return 0;
+}
+
+/**
+ * txgbe_need_crosstalk_fix - Determine if we need to do cross talk fix
+ * @hw: pointer to hardware structure
+ *
+ * Contains the logic to identify if we need to verify link for the
+ * crosstalk fix
+ **/
+static bool txgbe_need_crosstalk_fix(struct txgbe_hw *hw)
+{
+ /* Does FW say we need the fix */
+ if (!hw->need_crosstalk_fix)
+ return false;
+
+ /* Only consider SFP+ PHYs i.e. media type fiber */
+ switch (hw->phy.media_type) {
+ case txgbe_media_type_fiber:
+ case txgbe_media_type_fiber_qsfp:
+ break;
+ default:
+ return false;
+ }
+
+ return true;
+}
+
+/**
+ * txgbe_check_mac_link - Determine link and speed status
+ * @hw: pointer to hardware structure
+ * @speed: pointer to link speed
+ * @link_up: true when link is up
+ * @link_up_wait_to_complete: bool used to wait for link up or not
+ *
+ * Reads the links register to determine if link is up and the current speed
+ **/
+s32 txgbe_check_mac_link(struct txgbe_hw *hw, u32 *speed,
+ bool *link_up, bool link_up_wait_to_complete)
+{
+ u32 links_reg, links_orig;
+ u32 i;
+
+ DEBUGFUNC("txgbe_check_mac_link");
+
+ /* If Crosstalk fix enabled do the sanity check of making sure
+ * the SFP+ cage is full.
+ */
+ if (txgbe_need_crosstalk_fix(hw)) {
+ u32 sfp_cage_full;
+
+ switch (hw->mac.type) {
+ case txgbe_mac_raptor:
+ sfp_cage_full = !rd32m(hw, TXGBE_GPIODATA,
+ TXGBE_GPIOBIT_2);
+ break;
+ default:
+ /* sanity check - No SFP+ devices here */
+ sfp_cage_full = false;
+ break;
+ }
+
+ if (!sfp_cage_full) {
+ *link_up = false;
+ *speed = TXGBE_LINK_SPEED_UNKNOWN;
+ return 0;
+ }
+ }
+
+ /* clear the old state */
+ links_orig = rd32(hw, TXGBE_PORTSTAT);
+
+ links_reg = rd32(hw, TXGBE_PORTSTAT);
+
+ if (links_orig != links_reg) {
+ DEBUGOUT("LINKS changed from %08X to %08X\n",
+ links_orig, links_reg);
+ }
+
+ if (link_up_wait_to_complete) {
+ for (i = 0; i < hw->mac.max_link_up_time; i++) {
+ if (!(links_reg & TXGBE_PORTSTAT_UP)) {
+ *link_up = false;
+ } else {
+ *link_up = true;
+ break;
+ }
+ msec_delay(100);
+ links_reg = rd32(hw, TXGBE_PORTSTAT);
+ }
+ } else {
+ if (links_reg & TXGBE_PORTSTAT_UP)
+ *link_up = true;
+ else
+ *link_up = false;
+ }
+
+ switch (links_reg & TXGBE_PORTSTAT_BW_MASK) {
+ case TXGBE_PORTSTAT_BW_10G:
+ *speed = TXGBE_LINK_SPEED_10GB_FULL;
+ break;
+ case TXGBE_PORTSTAT_BW_1G:
+ *speed = TXGBE_LINK_SPEED_1GB_FULL;
+ break;
+ case TXGBE_PORTSTAT_BW_100M:
+ *speed = TXGBE_LINK_SPEED_100M_FULL;
+ break;
+ default:
+ *speed = TXGBE_LINK_SPEED_UNKNOWN;
+ }
+
+ return 0;
+}
+
+/**
+ * txgbe_get_wwn_prefix - Get alternative WWNN/WWPN prefix from
+ * the EEPROM
+ * @hw: pointer to hardware structure
+ * @wwnn_prefix: the alternative WWNN prefix
+ * @wwpn_prefix: the alternative WWPN prefix
+ *
+ * This function will read the EEPROM from the alternative SAN MAC address
+ * block to check the support for the alternative WWNN/WWPN prefix support.
+ **/
+s32 txgbe_get_wwn_prefix(struct txgbe_hw *hw, u16 *wwnn_prefix,
+ u16 *wwpn_prefix)
+{
+ u16 offset, caps;
+ u16 alt_san_mac_blk_offset;
+
+ DEBUGFUNC("txgbe_get_wwn_prefix");
+
+ /* clear output first */
+ *wwnn_prefix = 0xFFFF;
+ *wwpn_prefix = 0xFFFF;
+
+ /* check if alternative SAN MAC is supported */
+ offset = TXGBE_ALT_SAN_MAC_ADDR_BLK_PTR;
+ if (hw->rom.readw_sw(hw, offset, &alt_san_mac_blk_offset))
+ goto wwn_prefix_err;
+
+ if (alt_san_mac_blk_offset == 0 || alt_san_mac_blk_offset == 0xFFFF)
+ goto wwn_prefix_out;
+
+ /* check capability in alternative san mac address block */
+ offset = alt_san_mac_blk_offset + TXGBE_ALT_SAN_MAC_ADDR_CAPS_OFFSET;
+ if (hw->rom.read16(hw, offset, &caps))
+ goto wwn_prefix_err;
+ if (!(caps & TXGBE_ALT_SAN_MAC_ADDR_CAPS_ALTWWN))
+ goto wwn_prefix_out;
+
+ /* get the corresponding prefix for WWNN/WWPN */
+ offset = alt_san_mac_blk_offset + TXGBE_ALT_SAN_MAC_ADDR_WWNN_OFFSET;
+ if (hw->rom.read16(hw, offset, wwnn_prefix))
+ DEBUGOUT("eeprom read at offset %d failed", offset);
+
+ offset = alt_san_mac_blk_offset + TXGBE_ALT_SAN_MAC_ADDR_WWPN_OFFSET;
+ if (hw->rom.read16(hw, offset, wwpn_prefix))
+ goto wwn_prefix_err;
+
+wwn_prefix_out:
+ return 0;
+
+wwn_prefix_err:
+ DEBUGOUT("eeprom read at offset %d failed", offset);
+ return 0;
+}
+
+/**
+ * txgbe_set_mac_anti_spoofing - Enable/Disable MAC anti-spoofing
+ * @hw: pointer to hardware structure
+ * @enable: enable or disable switch for MAC anti-spoofing
+ * @vf: Virtual Function pool - VF Pool to set for MAC anti-spoofing
+ *
+ **/
+void txgbe_set_mac_anti_spoofing(struct txgbe_hw *hw, bool enable, int vf)
+{
+ int vf_target_reg = vf >> 3;
+ int vf_target_shift = vf % 8;
+ u32 pfvfspoof;
+
+ pfvfspoof = rd32(hw, TXGBE_POOLTXASMAC(vf_target_reg));
+ if (enable)
+ pfvfspoof |= (1 << vf_target_shift);
+ else
+ pfvfspoof &= ~(1 << vf_target_shift);
+ wr32(hw, TXGBE_POOLTXASMAC(vf_target_reg), pfvfspoof);
+}
+
+/**
+ * txgbe_set_ethertype_anti_spoofing - Configure Ethertype anti-spoofing
+ * @hw: pointer to hardware structure
+ * @enable: enable or disable switch for Ethertype anti-spoofing
+ * @vf: Virtual Function pool - VF Pool to set for Ethertype anti-spoofing
+ *
+ **/
+void txgbe_set_ethertype_anti_spoofing(struct txgbe_hw *hw,
+ bool enable, int vf)
+{
+ int vf_target_reg = vf >> 3;
+ int vf_target_shift = vf % 8;
+ u32 pfvfspoof;
+
+ pfvfspoof = rd32(hw, TXGBE_POOLTXASET(vf_target_reg));
+ if (enable)
+ pfvfspoof |= (1 << vf_target_shift);
+ else
+ pfvfspoof &= ~(1 << vf_target_shift);
+ wr32(hw, TXGBE_POOLTXASET(vf_target_reg), pfvfspoof);
+}
+
+/**
+ * txgbe_get_device_caps - Get additional device capabilities
+ * @hw: pointer to hardware structure
+ * @device_caps: the EEPROM word with the extra device capabilities
+ *
+ * This function will read the EEPROM location for the device capabilities,
+ * and return the word through device_caps.
+ **/
+s32 txgbe_get_device_caps(struct txgbe_hw *hw, u16 *device_caps)
+{
+ DEBUGFUNC("txgbe_get_device_caps");
+
+ hw->rom.readw_sw(hw, TXGBE_DEVICE_CAPS, device_caps);
+
+ return 0;
+}
+
+/**
+ * txgbe_set_pba - Initialize Rx packet buffer
+ * @hw: pointer to hardware structure
+ * @num_pb: number of packet buffers to allocate
+ * @headroom: reserve n KB of headroom
+ * @strategy: packet buffer allocation strategy
+ **/
+void txgbe_set_pba(struct txgbe_hw *hw, int num_pb, u32 headroom,
+ int strategy)
+{
+ u32 pbsize = hw->mac.rx_pb_size;
+ int i = 0;
+ u32 rxpktsize, txpktsize, txpbthresh;
+
+ UNREFERENCED_PARAMETER(hw);
+
+ /* Reserve headroom */
+ pbsize -= headroom;
+
+ if (!num_pb)
+ num_pb = 1;
+
+ /* Divide remaining packet buffer space amongst the number of packet
+ * buffers requested using supplied strategy.
+ */
+ switch (strategy) {
+ case PBA_STRATEGY_WEIGHTED:
+ /* txgbe_dcb_pba_80_48 strategy weight first half of packet
+ * buffer with 5/8 of the packet buffer space.
+ */
+ rxpktsize = (pbsize * 5) / (num_pb * 4);
+ pbsize -= rxpktsize * (num_pb / 2);
+ rxpktsize <<= 10;
+ for (; i < (num_pb / 2); i++)
+ wr32(hw, TXGBE_PBRXSIZE(i), rxpktsize);
+ /* fall through - configure remaining packet buffers */
+ case PBA_STRATEGY_EQUAL:
+ rxpktsize = (pbsize / (num_pb - i));
+ rxpktsize <<= 10;
+ for (; i < num_pb; i++)
+ wr32(hw, TXGBE_PBRXSIZE(i), rxpktsize);
+ break;
+ default:
+ break;
+ }
+
+ /* Only support an equally distributed Tx packet buffer strategy. */
+ txpktsize = TXGBE_PBTXSIZE_MAX / num_pb;
+ txpbthresh = (txpktsize / 1024) - TXGBE_TXPKT_SIZE_MAX;
+ for (i = 0; i < num_pb; i++) {
+ wr32(hw, TXGBE_PBTXSIZE(i), txpktsize);
+ wr32(hw, TXGBE_PBTXDMATH(i), txpbthresh);
+ }
+
+ /* Clear unused TCs, if any, to zero buffer size*/
+ for (; i < TXGBE_MAX_UP; i++) {
+ wr32(hw, TXGBE_PBRXSIZE(i), 0);
+ wr32(hw, TXGBE_PBTXSIZE(i), 0);
+ wr32(hw, TXGBE_PBTXDMATH(i), 0);
+ }
+}
+
+/**
+ * txgbe_clear_tx_pending - Clear pending TX work from the PCIe fifo
+ * @hw: pointer to the hardware structure
+ *
+ * The MACs can experience issues if TX work is still pending
+ * when a reset occurs. This function prevents this by flushing the PCIe
+ * buffers on the system.
+ **/
+void txgbe_clear_tx_pending(struct txgbe_hw *hw)
+{
+ u32 hlreg0, i, poll;
+
+ /*
+ * If double reset is not requested then all transactions should
+ * already be clear and as such there is no work to do
+ */
+ if (!(hw->mac.flags & TXGBE_FLAGS_DOUBLE_RESET_REQUIRED))
+ return;
+
+ hlreg0 = rd32(hw, TXGBE_PSRCTL);
+ wr32(hw, TXGBE_PSRCTL, hlreg0 | TXGBE_PSRCTL_LBENA);
+
+ /* Wait for a last completion before clearing buffers */
+ txgbe_flush(hw);
+ msec_delay(3);
+
+ /*
+ * Before proceeding, make sure that the PCIe block does not have
+ * transactions pending.
+ */
+ poll = (800 * 11) / 10;
+ for (i = 0; i < poll; i++)
+ usec_delay(100);
+
+ /* Flush all writes and allow 20usec for all transactions to clear */
+ txgbe_flush(hw);
+ usec_delay(20);
+
+ /* restore previous register values */
+ wr32(hw, TXGBE_PSRCTL, hlreg0);
+}
+
+/**
+ * txgbe_get_thermal_sensor_data - Gathers thermal sensor data
+ * @hw: pointer to hardware structure
+ *
+ * Returns the thermal sensor data structure
+ **/
+s32 txgbe_get_thermal_sensor_data(struct txgbe_hw *hw)
+{
+ struct txgbe_thermal_sensor_data *data = &hw->mac.thermal_sensor_data;
+ s64 tsv;
+ u32 ts_stat;
+
+ DEBUGFUNC("txgbe_get_thermal_sensor_data");
+
+ /* Only support thermal sensors attached to physical port 0 */
+ if (hw->bus.lan_id != 0)
+ return TXGBE_NOT_IMPLEMENTED;
+
+ ts_stat = rd32(hw, TXGBE_TSSTAT);
+ tsv = (s64)TXGBE_TSSTAT_DATA(ts_stat);
+ tsv = tsv > 1200 ? tsv : 1200;
+ tsv = -(48380 << 8) / 1000
+ + tsv * (31020 << 8) / 100000
+ - tsv * tsv * (18201 << 8) / 100000000
+ + tsv * tsv * tsv * (81542 << 8) / 1000000000000
+ - tsv * tsv * tsv * tsv * (16743 << 8) / 1000000000000000;
+ tsv >>= 8;
+
+ data->sensor[0].temp = (s16)tsv;
+
+ return 0;
+}
+
+/**
+ * txgbe_init_thermal_sensor_thresh - Inits thermal sensor thresholds
+ * @hw: pointer to hardware structure
+ *
+ * Inits the thermal sensor thresholds according to the NVM map
+ * and save off the threshold and location values into mac.thermal_sensor_data
+ **/
+s32 txgbe_init_thermal_sensor_thresh(struct txgbe_hw *hw)
+{
+ struct txgbe_thermal_sensor_data *data = &hw->mac.thermal_sensor_data;
+
+ DEBUGFUNC("txgbe_init_thermal_sensor_thresh");
+
+ memset(data, 0, sizeof(struct txgbe_thermal_sensor_data));
+
+ if (hw->bus.lan_id != 0)
+ return TXGBE_NOT_IMPLEMENTED;
+
+ wr32(hw, TXGBE_TSCTRL, TXGBE_TSCTRL_EVALMD);
+ wr32(hw, TXGBE_TSINTR,
+ TXGBE_TSINTR_AEN | TXGBE_TSINTR_DEN);
+ wr32(hw, TXGBE_TSEN, TXGBE_TSEN_ENA);
+
+
+ data->sensor[0].alarm_thresh = 100;
+ wr32(hw, TXGBE_TSATHRE, 677);
+ data->sensor[0].dalarm_thresh = 90;
+ wr32(hw, TXGBE_TSDTHRE, 614);
+
+ return 0;
+}
+
+void txgbe_disable_rx(struct txgbe_hw *hw)
+{
+ u32 pfdtxgswc;
+
+ pfdtxgswc = rd32(hw, TXGBE_PSRCTL);
+ if (pfdtxgswc & TXGBE_PSRCTL_LBENA) {
+ pfdtxgswc &= ~TXGBE_PSRCTL_LBENA;
+ wr32(hw, TXGBE_PSRCTL, pfdtxgswc);
+ hw->mac.set_lben = true;
+ } else {
+ hw->mac.set_lben = false;
+ }
+
+ wr32m(hw, TXGBE_PBRXCTL, TXGBE_PBRXCTL_ENA, 0);
+ wr32m(hw, TXGBE_MACRXCFG, TXGBE_MACRXCFG_ENA, 0);
+}
+
+void txgbe_enable_rx(struct txgbe_hw *hw)
+{
+ u32 pfdtxgswc;
+
+ wr32m(hw, TXGBE_MACRXCFG, TXGBE_MACRXCFG_ENA, TXGBE_MACRXCFG_ENA);
+ wr32m(hw, TXGBE_PBRXCTL, TXGBE_PBRXCTL_ENA, TXGBE_PBRXCTL_ENA);
+
+ if (hw->mac.set_lben) {
+ pfdtxgswc = rd32(hw, TXGBE_PSRCTL);
+ pfdtxgswc |= TXGBE_PSRCTL_LBENA;
+ wr32(hw, TXGBE_PSRCTL, pfdtxgswc);
+ hw->mac.set_lben = false;
+ }
+}
+
+/**
+ * txgbe_setup_mac_link_multispeed_fiber - Set MAC link speed
+ * @hw: pointer to hardware structure
+ * @speed: new link speed
+ * @autoneg_wait_to_complete: true when waiting for completion is needed
+ *
+ * Set the link speed in the MAC and/or PHY register and restarts link.
+ **/
+s32 txgbe_setup_mac_link_multispeed_fiber(struct txgbe_hw *hw,
+ u32 speed,
+ bool autoneg_wait_to_complete)
+{
+ u32 link_speed = TXGBE_LINK_SPEED_UNKNOWN;
+ u32 highest_link_speed = TXGBE_LINK_SPEED_UNKNOWN;
+ s32 status = 0;
+ u32 speedcnt = 0;
+ u32 i = 0;
+ bool autoneg, link_up = false;
+
+ DEBUGFUNC("txgbe_setup_mac_link_multispeed_fiber");
+
+ /* Mask off requested but non-supported speeds */
+ status = hw->mac.get_link_capabilities(hw, &link_speed, &autoneg);
+ if (status != 0)
+ return status;
+
+ speed &= link_speed;
+
+ /* Try each speed one by one, highest priority first. We do this in
+ * software because 10Gb fiber doesn't support speed autonegotiation.
+ */
+ if (speed & TXGBE_LINK_SPEED_10GB_FULL) {
+ speedcnt++;
+ highest_link_speed = TXGBE_LINK_SPEED_10GB_FULL;
+
+ /* Set the module link speed */
+ switch (hw->phy.media_type) {
+ case txgbe_media_type_fiber:
+ hw->mac.set_rate_select_speed(hw,
+ TXGBE_LINK_SPEED_10GB_FULL);
+ break;
+ case txgbe_media_type_fiber_qsfp:
+ /* QSFP module automatically detects MAC link speed */
+ break;
+ default:
+ DEBUGOUT("Unexpected media type.\n");
+ break;
+ }
+
+ /* Allow module to change analog characteristics (1G->10G) */
+ msec_delay(40);
+
+ status = hw->mac.setup_mac_link(hw,
+ TXGBE_LINK_SPEED_10GB_FULL,
+ autoneg_wait_to_complete);
+ if (status != 0)
+ return status;
+
+ /* Flap the Tx laser if it has not already been done */
+ hw->mac.flap_tx_laser(hw);
+
+ /* Wait for the controller to acquire link. Per IEEE 802.3ap,
+ * Section 73.10.2, we may have to wait up to 500ms if KR is
+ * attempted. uses the same timing for 10g SFI.
+ */
+ for (i = 0; i < 5; i++) {
+ /* Wait for the link partner to also set speed */
+ msec_delay(100);
+
+ /* If we have link, just jump out */
+ status = hw->mac.check_link(hw, &link_speed,
+ &link_up, false);
+ if (status != 0)
+ return status;
+
+ if (link_up)
+ goto out;
+ }
+ }
+
+ if (speed & TXGBE_LINK_SPEED_1GB_FULL) {
+ speedcnt++;
+ if (highest_link_speed == TXGBE_LINK_SPEED_UNKNOWN)
+ highest_link_speed = TXGBE_LINK_SPEED_1GB_FULL;
+
+ /* Set the module link speed */
+ switch (hw->phy.media_type) {
+ case txgbe_media_type_fiber:
+ hw->mac.set_rate_select_speed(hw,
+ TXGBE_LINK_SPEED_1GB_FULL);
+ break;
+ case txgbe_media_type_fiber_qsfp:
+ /* QSFP module automatically detects link speed */
+ break;
+ default:
+ DEBUGOUT("Unexpected media type.\n");
+ break;
+ }
+
+ /* Allow module to change analog characteristics (10G->1G) */
+ msec_delay(40);
+
+ status = hw->mac.setup_mac_link(hw,
+ TXGBE_LINK_SPEED_1GB_FULL,
+ autoneg_wait_to_complete);
+ if (status != 0)
+ return status;
+
+ /* Flap the Tx laser if it has not already been done */
+ hw->mac.flap_tx_laser(hw);
+
+ /* Wait for the link partner to also set speed */
+ msec_delay(100);
+
+ /* If we have link, just jump out */
+ status = hw->mac.check_link(hw, &link_speed, &link_up, false);
+ if (status != 0)
+ return status;
+
+ if (link_up)
+ goto out;
+ }
+
+ /* We didn't get link. Configure back to the highest speed we tried,
+ * (if there was more than one). We call ourselves back with just the
+ * single highest speed that the user requested.
+ */
+ if (speedcnt > 1)
+ status = txgbe_setup_mac_link_multispeed_fiber(hw,
+ highest_link_speed,
+ autoneg_wait_to_complete);
+
+out:
+ /* Set autoneg_advertised value based on input link speed */
+ hw->phy.autoneg_advertised = 0;
+
+ if (speed & TXGBE_LINK_SPEED_10GB_FULL)
+ hw->phy.autoneg_advertised |= TXGBE_LINK_SPEED_10GB_FULL;
+
+ if (speed & TXGBE_LINK_SPEED_1GB_FULL)
+ hw->phy.autoneg_advertised |= TXGBE_LINK_SPEED_1GB_FULL;
+
+ return status;
+}
+
+/**
+ * txgbe_init_shared_code - Initialize the shared code
+ * @hw: pointer to hardware structure
+ *
+ * This will assign function pointers and assign the MAC type and PHY code.
+ * Does not touch the hardware. This function must be called prior to any
+ * other function in the shared code. The txgbe_hw structure should be
+ * memset to 0 prior to calling this function. The following fields in
+ * hw structure should be filled in prior to calling this function:
+ * hw_addr, back, device_id, vendor_id, subsystem_device_id,
+ * subsystem_vendor_id, and revision_id
+ **/
+s32 txgbe_init_shared_code(struct txgbe_hw *hw)
+{
+ s32 status;
+
+ DEBUGFUNC("txgbe_init_shared_code");
+
+ /*
+ * Set the mac type
+ */
+ txgbe_set_mac_type(hw);
+
+ txgbe_init_ops_dummy(hw);
+ switch (hw->mac.type) {
+ case txgbe_mac_raptor:
+ status = txgbe_init_ops_pf(hw);
+ break;
+ case txgbe_mac_raptor_vf:
+ status = txgbe_init_ops_vf(hw);
+ break;
+ default:
+ status = TXGBE_ERR_DEVICE_NOT_SUPPORTED;
+ break;
+ }
+ hw->mac.max_link_up_time = TXGBE_LINK_UP_TIME;
+
+ hw->bus.set_lan_id(hw);
+
+ return status;
+}
+
+/**
+ * txgbe_set_mac_type - Sets MAC type
+ * @hw: pointer to the HW structure
+ *
+ * This function sets the mac type of the adapter based on the
+ * vendor ID and device ID stored in the hw structure.
+ **/
+s32 txgbe_set_mac_type(struct txgbe_hw *hw)
+{
+ s32 err = 0;
+
+ DEBUGFUNC("txgbe_set_mac_type");
+
+ if (hw->vendor_id != PCI_VENDOR_ID_WANGXUN) {
+ DEBUGOUT("Unsupported vendor id: %x", hw->vendor_id);
+ return TXGBE_ERR_DEVICE_NOT_SUPPORTED;
+ }
+
+ switch (hw->device_id) {
+ case TXGBE_DEV_ID_SP1000:
+ case TXGBE_DEV_ID_WX1820:
+ hw->mac.type = txgbe_mac_raptor;
+ break;
+ case TXGBE_DEV_ID_SP1000_VF:
+ case TXGBE_DEV_ID_WX1820_VF:
+ hw->phy.media_type = txgbe_media_type_virtual;
+ hw->mac.type = txgbe_mac_raptor_vf;
+ break;
+ default:
+ err = TXGBE_ERR_DEVICE_NOT_SUPPORTED;
+ DEBUGOUT("Unsupported device id: %x", hw->device_id);
+ break;
+ }
+
+ DEBUGOUT("found mac: %d, returns: %d\n",
+ hw->mac.type, err);
+ return err;
+}
+
+void txgbe_init_mac_link_ops(struct txgbe_hw *hw)
+{
+ struct txgbe_mac_info *mac = &hw->mac;
+
+ DEBUGFUNC("txgbe_init_mac_link_ops");
+
+ /*
+ * enable the laser control functions for SFP+ fiber
+ * and MNG not enabled
+ */
+ if (hw->phy.media_type == txgbe_media_type_fiber &&
+ !txgbe_mng_enabled(hw)) {
+ mac->disable_tx_laser =
+ txgbe_disable_tx_laser_multispeed_fiber;
+ mac->enable_tx_laser =
+ txgbe_enable_tx_laser_multispeed_fiber;
+ mac->flap_tx_laser =
+ txgbe_flap_tx_laser_multispeed_fiber;
+ }
+
+ if ((hw->phy.media_type == txgbe_media_type_fiber ||
+ hw->phy.media_type == txgbe_media_type_fiber_qsfp) &&
+ hw->phy.multispeed_fiber) {
+ /* Set up dual speed SFP+ support */
+ mac->setup_link = txgbe_setup_mac_link_multispeed_fiber;
+ mac->setup_mac_link = txgbe_setup_mac_link;
+ mac->set_rate_select_speed = txgbe_set_hard_rate_select_speed;
+ } else {
+ mac->setup_link = txgbe_setup_mac_link;
+ mac->set_rate_select_speed = txgbe_set_hard_rate_select_speed;
+ }
+}
+
+/**
+ * txgbe_init_phy_raptor - PHY/SFP specific init
+ * @hw: pointer to hardware structure
+ *
+ * Initialize any function pointers that were not able to be
+ * set during init_shared_code because the PHY/SFP type was
+ * not known. Perform the SFP init if necessary.
+ *
+ **/
+s32 txgbe_init_phy_raptor(struct txgbe_hw *hw)
+{
+ struct txgbe_mac_info *mac = &hw->mac;
+ struct txgbe_phy_info *phy = &hw->phy;
+ s32 err = 0;
+
+ DEBUGFUNC("txgbe_init_phy_raptor");
+
+ if ((hw->device_id & 0xFF) == TXGBE_DEV_ID_QSFP) {
+ /* Store flag indicating I2C bus access control unit. */
+ hw->phy.qsfp_shared_i2c_bus = TRUE;
+
+ /* Initialize access to QSFP+ I2C bus */
+ txgbe_flush(hw);
+ }
+
+ /* Identify the PHY or SFP module */
+ err = phy->identify(hw);
+ if (err == TXGBE_ERR_SFP_NOT_SUPPORTED)
+ goto init_phy_ops_out;
+
+ /* Setup function pointers based on detected SFP module and speeds */
+ txgbe_init_mac_link_ops(hw);
+
+ /* If copper media, overwrite with copper function pointers */
+ if (phy->media_type == txgbe_media_type_copper) {
+ mac->setup_link = txgbe_setup_copper_link_raptor;
+ mac->get_link_capabilities =
+ txgbe_get_copper_link_capabilities;
+ }
+
+ if (phy->media_type == txgbe_media_type_backplane) {
+ mac->kr_handle = txgbe_kr_handle;
+ mac->bp_down_event = txgbe_bp_down_event;
+ }
+
+ /* Set necessary function pointers based on PHY type */
+ switch (hw->phy.type) {
+ case txgbe_phy_tn:
+ phy->setup_link = txgbe_setup_phy_link_tnx;
+ phy->check_link = txgbe_check_phy_link_tnx;
+ break;
+ default:
+ break;
+ }
+
+init_phy_ops_out:
+ return err;
+}
+
+s32 txgbe_setup_sfp_modules(struct txgbe_hw *hw)
+{
+ s32 err = 0;
+
+ DEBUGFUNC("txgbe_setup_sfp_modules");
+
+ if (hw->phy.sfp_type == txgbe_sfp_type_unknown)
+ return 0;
+
+ txgbe_init_mac_link_ops(hw);
+
+ /* PHY config will finish before releasing the semaphore */
+ err = hw->mac.acquire_swfw_sync(hw, TXGBE_MNGSEM_SWPHY);
+ if (err != 0)
+ return TXGBE_ERR_SWFW_SYNC;
+
+ /* Release the semaphore */
+ hw->mac.release_swfw_sync(hw, TXGBE_MNGSEM_SWPHY);
+
+ /* Delay obtaining semaphore again to allow FW access
+ * prot_autoc_write uses the semaphore too.
+ */
+ msec_delay(hw->rom.semaphore_delay);
+
+ if (err) {
+ DEBUGOUT("sfp module setup not complete\n");
+ return TXGBE_ERR_SFP_SETUP_NOT_COMPLETE;
+ }
+
+ return err;
+}
+
+/**
+ * txgbe_prot_autoc_read_raptor - Hides MAC differences needed for AUTOC read
+ * @hw: pointer to hardware structure
+ * @locked: Return the if we locked for this read.
+ * @value: Value we read from AUTOC
+ *
+ * For this part we need to wrap read-modify-writes with a possible
+ * FW/SW lock. It is assumed this lock will be freed with the next
+ * prot_autoc_write_raptor().
+ */
+s32 txgbe_prot_autoc_read_raptor(struct txgbe_hw *hw, bool *locked, u64 *value)
+{
+ s32 err;
+ bool lock_state = false;
+
+ /* If LESM is on then we need to hold the SW/FW semaphore. */
+ if (txgbe_verify_lesm_fw_enabled_raptor(hw)) {
+ err = hw->mac.acquire_swfw_sync(hw,
+ TXGBE_MNGSEM_SWPHY);
+ if (err != 0)
+ return TXGBE_ERR_SWFW_SYNC;
+
+ lock_state = true;
+ }
+
+ if (locked)
+ *locked = lock_state;
+
+ *value = txgbe_autoc_read(hw);
+ return 0;
+}
+
+/**
+ * txgbe_prot_autoc_write_raptor - Hides MAC differences needed for AUTOC write
+ * @hw: pointer to hardware structure
+ * @autoc: value to write to AUTOC
+ * @locked: bool to indicate whether the SW/FW lock was already taken by
+ * previous prot_autoc_read_raptor.
+ *
+ * This part may need to hold the SW/FW lock around all writes to
+ * AUTOC. Likewise after a write we need to do a pipeline reset.
+ */
+s32 txgbe_prot_autoc_write_raptor(struct txgbe_hw *hw, bool locked, u64 autoc)
+{
+ int err = 0;
+
+ /* Blocked by MNG FW so bail */
+ if (txgbe_check_reset_blocked(hw))
+ goto out;
+
+ /* We only need to get the lock if:
+ * - We didn't do it already (in the read part of a read-modify-write)
+ * - LESM is enabled.
+ */
+ if (!locked && txgbe_verify_lesm_fw_enabled_raptor(hw)) {
+ err = hw->mac.acquire_swfw_sync(hw,
+ TXGBE_MNGSEM_SWPHY);
+ if (err != 0)
+ return TXGBE_ERR_SWFW_SYNC;
+
+ locked = true;
+ }
+
+ txgbe_autoc_write(hw, autoc);
+ err = txgbe_reset_pipeline_raptor(hw);
+
+out:
+ /* Free the SW/FW semaphore as we either grabbed it here or
+ * already had it when this function was called.
+ */
+ if (locked)
+ hw->mac.release_swfw_sync(hw, TXGBE_MNGSEM_SWPHY);
+
+ return err;
+}
+
+/**
+ * txgbe_init_ops_pf - Inits func ptrs and MAC type
+ * @hw: pointer to hardware structure
+ *
+ * Initialize the function pointers and assign the MAC type.
+ * Does not touch the hardware.
+ **/
+s32 txgbe_init_ops_pf(struct txgbe_hw *hw)
+{
+ struct txgbe_bus_info *bus = &hw->bus;
+ struct txgbe_mac_info *mac = &hw->mac;
+ struct txgbe_phy_info *phy = &hw->phy;
+ struct txgbe_rom_info *rom = &hw->rom;
+ struct txgbe_mbx_info *mbx = &hw->mbx;
+
+ DEBUGFUNC("txgbe_init_ops_pf");
+
+ /* BUS */
+ bus->set_lan_id = txgbe_set_lan_id_multi_port;
+
+ /* PHY */
+ phy->get_media_type = txgbe_get_media_type_raptor;
+ phy->identify = txgbe_identify_phy;
+ phy->init = txgbe_init_phy_raptor;
+ phy->read_reg = txgbe_read_phy_reg;
+ phy->write_reg = txgbe_write_phy_reg;
+ phy->read_reg_mdi = txgbe_read_phy_reg_mdi;
+ phy->write_reg_mdi = txgbe_write_phy_reg_mdi;
+ phy->setup_link = txgbe_setup_phy_link;
+ phy->setup_link_speed = txgbe_setup_phy_link_speed;
+ phy->get_fw_version = txgbe_get_phy_fw_version;
+ phy->read_i2c_byte = txgbe_read_i2c_byte;
+ phy->write_i2c_byte = txgbe_write_i2c_byte;
+ phy->read_i2c_sff8472 = txgbe_read_i2c_sff8472;
+ phy->read_i2c_eeprom = txgbe_read_i2c_eeprom;
+ phy->write_i2c_eeprom = txgbe_write_i2c_eeprom;
+ phy->identify_sfp = txgbe_identify_module;
+ phy->read_i2c_byte_unlocked = txgbe_read_i2c_byte_unlocked;
+ phy->write_i2c_byte_unlocked = txgbe_write_i2c_byte_unlocked;
+ phy->reset = txgbe_reset_phy;
+
+ /* MAC */
+ mac->init_hw = txgbe_init_hw;
+ mac->start_hw = txgbe_start_hw_raptor;
+ mac->clear_hw_cntrs = txgbe_clear_hw_cntrs;
+ mac->enable_rx_dma = txgbe_enable_rx_dma_raptor;
+ mac->get_mac_addr = txgbe_get_mac_addr;
+ mac->stop_hw = txgbe_stop_hw;
+ mac->acquire_swfw_sync = txgbe_acquire_swfw_sync;
+ mac->release_swfw_sync = txgbe_release_swfw_sync;
+ mac->reset_hw = txgbe_reset_hw;
+ mac->update_mc_addr_list = txgbe_update_mc_addr_list;
+
+ mac->disable_sec_rx_path = txgbe_disable_sec_rx_path;
+ mac->enable_sec_rx_path = txgbe_enable_sec_rx_path;
+ mac->disable_sec_tx_path = txgbe_disable_sec_tx_path;
+ mac->enable_sec_tx_path = txgbe_enable_sec_tx_path;
+ mac->get_san_mac_addr = txgbe_get_san_mac_addr;
+ mac->set_san_mac_addr = txgbe_set_san_mac_addr;
+ mac->get_device_caps = txgbe_get_device_caps;
+ mac->get_wwn_prefix = txgbe_get_wwn_prefix;
+ mac->autoc_read = txgbe_autoc_read;
+ mac->autoc_write = txgbe_autoc_write;
+ mac->prot_autoc_read = txgbe_prot_autoc_read_raptor;
+ mac->prot_autoc_write = txgbe_prot_autoc_write_raptor;
+
+ /* RAR, Multicast, VLAN */
+ mac->set_rar = txgbe_set_rar;
+ mac->clear_rar = txgbe_clear_rar;
+ mac->init_rx_addrs = txgbe_init_rx_addrs;
+ mac->enable_rx = txgbe_enable_rx;
+ mac->disable_rx = txgbe_disable_rx;
+ mac->set_vmdq = txgbe_set_vmdq;
+ mac->clear_vmdq = txgbe_clear_vmdq;
+ mac->set_vfta = txgbe_set_vfta;
+ mac->set_vlvf = txgbe_set_vlvf;
+ mac->clear_vfta = txgbe_clear_vfta;
+ mac->init_uta_tables = txgbe_init_uta_tables;
+ mac->setup_sfp = txgbe_setup_sfp_modules;
+ mac->set_mac_anti_spoofing = txgbe_set_mac_anti_spoofing;
+ mac->set_ethertype_anti_spoofing = txgbe_set_ethertype_anti_spoofing;
+
+ /* Flow Control */
+ mac->fc_enable = txgbe_fc_enable;
+ mac->setup_fc = txgbe_setup_fc;
+ mac->fc_autoneg = txgbe_fc_autoneg;
+
+ /* Link */
+ mac->get_link_capabilities = txgbe_get_link_capabilities_raptor;
+ mac->check_link = txgbe_check_mac_link;
+ mac->setup_pba = txgbe_set_pba;
+
+ /* Manageability interface */
+ mac->set_fw_drv_ver = txgbe_hic_set_drv_ver;
+ mac->get_thermal_sensor_data = txgbe_get_thermal_sensor_data;
+ mac->init_thermal_sensor_thresh = txgbe_init_thermal_sensor_thresh;
+
+ mbx->init_params = txgbe_init_mbx_params_pf;
+ mbx->read = txgbe_read_mbx_pf;
+ mbx->write = txgbe_write_mbx_pf;
+ mbx->check_for_msg = txgbe_check_for_msg_pf;
+ mbx->check_for_ack = txgbe_check_for_ack_pf;
+ mbx->check_for_rst = txgbe_check_for_rst_pf;
+
+ /* EEPROM */
+ rom->init_params = txgbe_init_eeprom_params;
+ rom->read16 = txgbe_ee_read16;
+ rom->readw_buffer = txgbe_ee_readw_buffer;
+ rom->readw_sw = txgbe_ee_readw_sw;
+ rom->read32 = txgbe_ee_read32;
+ rom->write16 = txgbe_ee_write16;
+ rom->writew_buffer = txgbe_ee_writew_buffer;
+ rom->writew_sw = txgbe_ee_writew_sw;
+ rom->write32 = txgbe_ee_write32;
+ rom->validate_checksum = txgbe_validate_eeprom_checksum;
+ rom->update_checksum = txgbe_update_eeprom_checksum;
+ rom->calc_checksum = txgbe_calc_eeprom_checksum;
+
+ mac->mcft_size = TXGBE_RAPTOR_MC_TBL_SIZE;
+ mac->vft_size = TXGBE_RAPTOR_VFT_TBL_SIZE;
+ mac->num_rar_entries = TXGBE_RAPTOR_RAR_ENTRIES;
+ mac->rx_pb_size = TXGBE_RAPTOR_RX_PB_SIZE;
+ mac->max_rx_queues = TXGBE_RAPTOR_MAX_RX_QUEUES;
+ mac->max_tx_queues = TXGBE_RAPTOR_MAX_TX_QUEUES;
+
+ return 0;
+}
+
+/**
+ * txgbe_get_link_capabilities_raptor - Determines link capabilities
+ * @hw: pointer to hardware structure
+ * @speed: pointer to link speed
+ * @autoneg: true when autoneg or autotry is enabled
+ *
+ * Determines the link capabilities by reading the AUTOC register.
+ **/
+s32 txgbe_get_link_capabilities_raptor(struct txgbe_hw *hw,
+ u32 *speed,
+ bool *autoneg)
+{
+ s32 status = 0;
+ u32 autoc = 0;
+
+ DEBUGFUNC("txgbe_get_link_capabilities_raptor");
+
+ /* Check if 1G SFP module. */
+ if (hw->phy.sfp_type == txgbe_sfp_type_1g_cu_core0 ||
+ hw->phy.sfp_type == txgbe_sfp_type_1g_cu_core1 ||
+ hw->phy.sfp_type == txgbe_sfp_type_1g_lx_core0 ||
+ hw->phy.sfp_type == txgbe_sfp_type_1g_lx_core1 ||
+ hw->phy.sfp_type == txgbe_sfp_type_1g_sx_core0 ||
+ hw->phy.sfp_type == txgbe_sfp_type_1g_sx_core1) {
+ *speed = TXGBE_LINK_SPEED_1GB_FULL;
+ *autoneg = true;
+ return 0;
+ }
+
+ /*
+ * Determine link capabilities based on the stored value of AUTOC,
+ * which represents EEPROM defaults. If AUTOC value has not
+ * been stored, use the current register values.
+ */
+ if (hw->mac.orig_link_settings_stored)
+ autoc = hw->mac.orig_autoc;
+ else
+ autoc = hw->mac.autoc_read(hw);
+
+ switch (autoc & TXGBE_AUTOC_LMS_MASK) {
+ case TXGBE_AUTOC_LMS_1G_LINK_NO_AN:
+ *speed = TXGBE_LINK_SPEED_1GB_FULL;
+ *autoneg = false;
+ break;
+
+ case TXGBE_AUTOC_LMS_10G_LINK_NO_AN:
+ *speed = TXGBE_LINK_SPEED_10GB_FULL;
+ *autoneg = false;
+ break;
+
+ case TXGBE_AUTOC_LMS_1G_AN:
+ *speed = TXGBE_LINK_SPEED_1GB_FULL;
+ *autoneg = true;
+ break;
+
+ case TXGBE_AUTOC_LMS_10G:
+ *speed = TXGBE_LINK_SPEED_10GB_FULL;
+ *autoneg = false;
+ break;
+
+ case TXGBE_AUTOC_LMS_KX4_KX_KR:
+ case TXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN:
+ *speed = TXGBE_LINK_SPEED_UNKNOWN;
+ if (autoc & TXGBE_AUTOC_KR_SUPP)
+ *speed |= TXGBE_LINK_SPEED_10GB_FULL;
+ if (autoc & TXGBE_AUTOC_KX4_SUPP)
+ *speed |= TXGBE_LINK_SPEED_10GB_FULL;
+ if (autoc & TXGBE_AUTOC_KX_SUPP)
+ *speed |= TXGBE_LINK_SPEED_1GB_FULL;
+ *autoneg = true;
+ break;
+
+ case TXGBE_AUTOC_LMS_KX4_KX_KR_SGMII:
+ *speed = TXGBE_LINK_SPEED_100M_FULL;
+ if (autoc & TXGBE_AUTOC_KR_SUPP)
+ *speed |= TXGBE_LINK_SPEED_10GB_FULL;
+ if (autoc & TXGBE_AUTOC_KX4_SUPP)
+ *speed |= TXGBE_LINK_SPEED_10GB_FULL;
+ if (autoc & TXGBE_AUTOC_KX_SUPP)
+ *speed |= TXGBE_LINK_SPEED_1GB_FULL;
+ *autoneg = true;
+ break;
+
+ case TXGBE_AUTOC_LMS_SGMII_1G_100M:
+ *speed = TXGBE_LINK_SPEED_1GB_FULL |
+ TXGBE_LINK_SPEED_100M_FULL |
+ TXGBE_LINK_SPEED_10M_FULL;
+ *autoneg = false;
+ break;
+
+ default:
+ return TXGBE_ERR_LINK_SETUP;
+ }
+
+ if (hw->phy.multispeed_fiber) {
+ *speed |= TXGBE_LINK_SPEED_10GB_FULL |
+ TXGBE_LINK_SPEED_1GB_FULL;
+
+ /* QSFP must not enable full auto-negotiation
+ * Limited autoneg is enabled at 1G
+ */
+ if (hw->phy.media_type == txgbe_media_type_fiber_qsfp)
+ *autoneg = false;
+ else
+ *autoneg = true;
+ }
+
+ return status;
+}
+
+/**
+ * txgbe_get_media_type_raptor - Get media type
+ * @hw: pointer to hardware structure
+ *
+ * Returns the media type (fiber, copper, backplane)
+ **/
+u32 txgbe_get_media_type_raptor(struct txgbe_hw *hw)
+{
+ u32 media_type;
+
+ DEBUGFUNC("txgbe_get_media_type_raptor");
+
+ if (hw->phy.ffe_set)
+ txgbe_bp_mode_set(hw);
+
+ /* Detect if there is a copper PHY attached. */
+ switch (hw->phy.type) {
+ case txgbe_phy_cu_unknown:
+ case txgbe_phy_tn:
+ media_type = txgbe_media_type_copper;
+ return media_type;
+ default:
+ break;
+ }
+
+ switch (hw->subsystem_device_id & 0xFF) {
+ case TXGBE_DEV_ID_KR_KX_KX4:
+ case TXGBE_DEV_ID_MAC_SGMII:
+ case TXGBE_DEV_ID_MAC_XAUI:
+ /* Default device ID is mezzanine card KX/KX4 */
+ media_type = txgbe_media_type_backplane;
+ break;
+ case TXGBE_DEV_ID_SFP:
+ media_type = txgbe_media_type_fiber;
+ break;
+ case TXGBE_DEV_ID_QSFP:
+ media_type = txgbe_media_type_fiber_qsfp;
+ break;
+ case TXGBE_DEV_ID_XAUI:
+ case TXGBE_DEV_ID_SGMII:
+ media_type = txgbe_media_type_copper;
+ break;
+ case TXGBE_DEV_ID_SFI_XAUI:
+ if (hw->bus.lan_id == 0)
+ media_type = txgbe_media_type_fiber;
+ else
+ media_type = txgbe_media_type_copper;
+ break;
+ default:
+ media_type = txgbe_media_type_unknown;
+ break;
+ }
+
+ return media_type;
+}
+
+/**
+ * txgbe_start_mac_link_raptor - Setup MAC link settings
+ * @hw: pointer to hardware structure
+ * @autoneg_wait_to_complete: true when waiting for completion is needed
+ *
+ * Configures link settings based on values in the txgbe_hw struct.
+ * Restarts the link. Performs autonegotiation if needed.
+ **/
+s32 txgbe_start_mac_link_raptor(struct txgbe_hw *hw,
+ bool autoneg_wait_to_complete)
+{
+ s32 status = 0;
+ bool got_lock = false;
+
+ DEBUGFUNC("txgbe_start_mac_link_raptor");
+
+ UNREFERENCED_PARAMETER(autoneg_wait_to_complete);
+
+ /* reset_pipeline requires us to hold this lock as it writes to
+ * AUTOC.
+ */
+ if (txgbe_verify_lesm_fw_enabled_raptor(hw)) {
+ status = hw->mac.acquire_swfw_sync(hw, TXGBE_MNGSEM_SWPHY);
+ if (status != 0)
+ goto out;
+
+ got_lock = true;
+ }
+
+ /* Restart link */
+ txgbe_reset_pipeline_raptor(hw);
+
+ if (got_lock)
+ hw->mac.release_swfw_sync(hw, TXGBE_MNGSEM_SWPHY);
+
+ /* Add delay to filter out noises during initial link setup */
+ msec_delay(50);
+
+out:
+ return status;
+}
+
+/**
+ * txgbe_disable_tx_laser_multispeed_fiber - Disable Tx laser
+ * @hw: pointer to hardware structure
+ *
+ * The base drivers may require better control over SFP+ module
+ * PHY states. This includes selectively shutting down the Tx
+ * laser on the PHY, effectively halting physical link.
+ **/
+void txgbe_disable_tx_laser_multispeed_fiber(struct txgbe_hw *hw)
+{
+ u32 esdp_reg = rd32(hw, TXGBE_GPIODATA);
+
+ /* Blocked by MNG FW so bail */
+ if (txgbe_check_reset_blocked(hw))
+ return;
+
+ /* Disable Tx laser; allow 100us to go dark per spec */
+ esdp_reg |= (TXGBE_GPIOBIT_0 | TXGBE_GPIOBIT_1);
+ wr32(hw, TXGBE_GPIODATA, esdp_reg);
+ txgbe_flush(hw);
+ usec_delay(100);
+}
+
+/**
+ * txgbe_enable_tx_laser_multispeed_fiber - Enable Tx laser
+ * @hw: pointer to hardware structure
+ *
+ * The base drivers may require better control over SFP+ module
+ * PHY states. This includes selectively turning on the Tx
+ * laser on the PHY, effectively starting physical link.
+ **/
+void txgbe_enable_tx_laser_multispeed_fiber(struct txgbe_hw *hw)
+{
+ u32 esdp_reg = rd32(hw, TXGBE_GPIODATA);
+
+ /* Enable Tx laser; allow 100ms to light up */
+ esdp_reg &= ~(TXGBE_GPIOBIT_0 | TXGBE_GPIOBIT_1);
+ wr32(hw, TXGBE_GPIODATA, esdp_reg);
+ txgbe_flush(hw);
+ msec_delay(100);
+}
+
+/**
+ * txgbe_flap_tx_laser_multispeed_fiber - Flap Tx laser
+ * @hw: pointer to hardware structure
+ *
+ * When the driver changes the link speeds that it can support,
+ * it sets autotry_restart to true to indicate that we need to
+ * initiate a new autotry session with the link partner. To do
+ * so, we set the speed then disable and re-enable the Tx laser, to
+ * alert the link partner that it also needs to restart autotry on its
+ * end. This is consistent with true clause 37 autoneg, which also
+ * involves a loss of signal.
+ **/
+void txgbe_flap_tx_laser_multispeed_fiber(struct txgbe_hw *hw)
+{
+ DEBUGFUNC("txgbe_flap_tx_laser_multispeed_fiber");
+
+ /* Blocked by MNG FW so bail */
+ if (txgbe_check_reset_blocked(hw))
+ return;
+
+ if (hw->mac.autotry_restart) {
+ txgbe_disable_tx_laser_multispeed_fiber(hw);
+ txgbe_enable_tx_laser_multispeed_fiber(hw);
+ hw->mac.autotry_restart = false;
+ }
+}
+
+/**
+ * txgbe_set_hard_rate_select_speed - Set module link speed
+ * @hw: pointer to hardware structure
+ * @speed: link speed to set
+ *
+ * Set module link speed via RS0/RS1 rate select pins.
+ */
+void txgbe_set_hard_rate_select_speed(struct txgbe_hw *hw,
+ u32 speed)
+{
+ u32 esdp_reg = rd32(hw, TXGBE_GPIODATA);
+
+ switch (speed) {
+ case TXGBE_LINK_SPEED_10GB_FULL:
+ esdp_reg |= (TXGBE_GPIOBIT_4 | TXGBE_GPIOBIT_5);
+ break;
+ case TXGBE_LINK_SPEED_1GB_FULL:
+ esdp_reg &= ~(TXGBE_GPIOBIT_4 | TXGBE_GPIOBIT_5);
+ break;
+ default:
+ DEBUGOUT("Invalid fixed module speed\n");
+ return;
}
- hw->mac.max_link_up_time = TXGBE_LINK_UP_TIME;
-
- hw->bus.set_lan_id(hw);
- return status;
+ wr32(hw, TXGBE_GPIODATA, esdp_reg);
+ txgbe_flush(hw);
}
/**
- * txgbe_set_mac_type - Sets MAC type
- * @hw: pointer to the HW structure
+ * txgbe_setup_mac_link_smartspeed - Set MAC link speed using SmartSpeed
+ * @hw: pointer to hardware structure
+ * @speed: new link speed
+ * @autoneg_wait_to_complete: true when waiting for completion is needed
*
- * This function sets the mac type of the adapter based on the
- * vendor ID and device ID stored in the hw structure.
+ * Implements the Intel SmartSpeed algorithm.
**/
-s32 txgbe_set_mac_type(struct txgbe_hw *hw)
+s32 txgbe_setup_mac_link_smartspeed(struct txgbe_hw *hw,
+ u32 speed,
+ bool autoneg_wait_to_complete)
{
- s32 err = 0;
+ s32 status = 0;
+ u32 link_speed = TXGBE_LINK_SPEED_UNKNOWN;
+ s32 i, j;
+ bool link_up = false;
+ u32 autoc_reg = rd32_epcs(hw, SR_AN_MMD_ADV_REG1);
- DEBUGFUNC("txgbe_set_mac_type");
+ DEBUGFUNC("txgbe_setup_mac_link_smartspeed");
- if (hw->vendor_id != PCI_VENDOR_ID_WANGXUN) {
- DEBUGOUT("Unsupported vendor id: %x", hw->vendor_id);
- return TXGBE_ERR_DEVICE_NOT_SUPPORTED;
- }
+ /* Set autoneg_advertised value based on input link speed */
+ hw->phy.autoneg_advertised = 0;
- switch (hw->device_id) {
- case TXGBE_DEV_ID_RAPTOR_KR_KX_KX4:
- hw->phy.media_type = txgbe_media_type_backplane;
- hw->mac.type = txgbe_mac_raptor;
- break;
- case TXGBE_DEV_ID_RAPTOR_XAUI:
- case TXGBE_DEV_ID_RAPTOR_SGMII:
- hw->phy.media_type = txgbe_media_type_copper;
- hw->mac.type = txgbe_mac_raptor;
- break;
- case TXGBE_DEV_ID_RAPTOR_SFP:
- case TXGBE_DEV_ID_WX1820_SFP:
- hw->phy.media_type = txgbe_media_type_fiber;
- hw->mac.type = txgbe_mac_raptor;
- break;
- case TXGBE_DEV_ID_RAPTOR_QSFP:
- hw->phy.media_type = txgbe_media_type_fiber_qsfp;
- hw->mac.type = txgbe_mac_raptor;
- break;
- case TXGBE_DEV_ID_RAPTOR_VF:
- case TXGBE_DEV_ID_RAPTOR_VF_HV:
- hw->phy.media_type = txgbe_media_type_virtual;
- hw->mac.type = txgbe_mac_raptor_vf;
- break;
- default:
- err = TXGBE_ERR_DEVICE_NOT_SUPPORTED;
- DEBUGOUT("Unsupported device id: %x", hw->device_id);
- break;
+ if (speed & TXGBE_LINK_SPEED_10GB_FULL)
+ hw->phy.autoneg_advertised |= TXGBE_LINK_SPEED_10GB_FULL;
+
+ if (speed & TXGBE_LINK_SPEED_1GB_FULL)
+ hw->phy.autoneg_advertised |= TXGBE_LINK_SPEED_1GB_FULL;
+
+ if (speed & TXGBE_LINK_SPEED_100M_FULL)
+ hw->phy.autoneg_advertised |= TXGBE_LINK_SPEED_100M_FULL;
+
+ /*
+ * Implement Intel SmartSpeed algorithm. SmartSpeed will reduce the
+ * autoneg advertisement if link is unable to be established at the
+ * highest negotiated rate. This can sometimes happen due to integrity
+ * issues with the physical media connection.
+ */
+
+ /* First, try to get link with full advertisement */
+ hw->phy.smart_speed_active = false;
+ for (j = 0; j < TXGBE_SMARTSPEED_MAX_RETRIES; j++) {
+ status = txgbe_setup_mac_link(hw, speed,
+ autoneg_wait_to_complete);
+ if (status != 0)
+ goto out;
+
+ /*
+ * Wait for the controller to acquire link. Per IEEE 802.3ap,
+ * Section 73.10.2, we may have to wait up to 500ms if KR is
+ * attempted, or 200ms if KX/KX4/BX/BX4 is attempted, per
+ * Table 9 in the AN MAS.
+ */
+ for (i = 0; i < 5; i++) {
+ msec_delay(100);
+
+ /* If we have link, just jump out */
+ status = hw->mac.check_link(hw, &link_speed, &link_up,
+ false);
+ if (status != 0)
+ goto out;
+
+ if (link_up)
+ goto out;
+ }
}
- DEBUGOUT("found mac: %d media: %d, returns: %d\n",
- hw->mac.type, hw->phy.media_type, err);
- return err;
-}
+ /*
+ * We didn't get link. If we advertised KR plus one of KX4/KX
+ * (or BX4/BX), then disable KR and try again.
+ */
+ if (((autoc_reg & TXGBE_AUTOC_KR_SUPP) == 0) ||
+ ((autoc_reg & TXGBE_AUTOC_KX_SUPP) == 0 &&
+ (autoc_reg & TXGBE_AUTOC_KX4_SUPP) == 0))
+ goto out;
+
+ /* Turn SmartSpeed on to disable KR support */
+ hw->phy.smart_speed_active = true;
+ status = txgbe_setup_mac_link(hw, speed,
+ autoneg_wait_to_complete);
+ if (status != 0)
+ goto out;
-void txgbe_init_mac_link_ops(struct txgbe_hw *hw)
-{
- struct txgbe_mac_info *mac = &hw->mac;
+ /*
+ * Wait for the controller to acquire link. 600ms will allow for
+ * the AN link_fail_inhibit_timer as well for multiple cycles of
+ * parallel detect, both 10g and 1g. This allows for the maximum
+ * connect attempts as defined in the AN MAS table 73-7.
+ */
+ for (i = 0; i < 6; i++) {
+ msec_delay(100);
- DEBUGFUNC("txgbe_init_mac_link_ops");
- RTE_SET_USED(mac);
+ /* If we have link, just jump out */
+ status = hw->mac.check_link(hw, &link_speed, &link_up, false);
+ if (status != 0)
+ goto out;
+
+ if (link_up)
+ goto out;
+ }
+
+ /* We didn't get link. Turn SmartSpeed back off. */
+ hw->phy.smart_speed_active = false;
+ status = txgbe_setup_mac_link(hw, speed,
+ autoneg_wait_to_complete);
+
+out:
+ if (link_up && link_speed == TXGBE_LINK_SPEED_1GB_FULL)
+ DEBUGOUT("Smartspeed has downgraded the link speed "
+ "from the maximum advertised\n");
+ return status;
}
/**
- * txgbe_init_phy_raptor - PHY/SFP specific init
+ * txgbe_setup_mac_link - Set MAC link speed
* @hw: pointer to hardware structure
+ * @speed: new link speed
+ * @autoneg_wait_to_complete: true when waiting for completion is needed
*
- * Initialize any function pointers that were not able to be
- * set during init_shared_code because the PHY/SFP type was
- * not known. Perform the SFP init if necessary.
- *
+ * Set the link speed in the AUTOC register and restarts link.
**/
-s32 txgbe_init_phy_raptor(struct txgbe_hw *hw)
+s32 txgbe_setup_mac_link(struct txgbe_hw *hw,
+ u32 speed,
+ bool autoneg_wait_to_complete)
{
- struct txgbe_phy_info *phy = &hw->phy;
- s32 err = 0;
+ bool autoneg = false;
+ s32 status = 0;
- DEBUGFUNC("txgbe_init_phy_raptor");
+ u64 autoc = hw->mac.autoc_read(hw);
+ u64 pma_pmd_10gs = autoc & TXGBE_AUTOC_10GS_PMA_PMD_MASK;
+ u64 pma_pmd_1g = autoc & TXGBE_AUTOC_1G_PMA_PMD_MASK;
+ u64 link_mode = autoc & TXGBE_AUTOC_LMS_MASK;
+ u64 orig_autoc = 0;
+ u32 link_capabilities = TXGBE_LINK_SPEED_UNKNOWN;
- if (hw->device_id == TXGBE_DEV_ID_RAPTOR_QSFP) {
- /* Store flag indicating I2C bus access control unit. */
- hw->phy.qsfp_shared_i2c_bus = TRUE;
+ DEBUGFUNC("txgbe_setup_mac_link");
+ UNREFERENCED_PARAMETER(autoneg_wait_to_complete);
- /* Initialize access to QSFP+ I2C bus */
- txgbe_flush(hw);
+ /* Check to see if speed passed in is supported. */
+ status = hw->mac.get_link_capabilities(hw,
+ &link_capabilities, &autoneg);
+ if (status)
+ return status;
+
+ speed &= link_capabilities;
+ if (speed == TXGBE_LINK_SPEED_UNKNOWN)
+ return TXGBE_ERR_LINK_SETUP;
+
+ /* Use stored value (EEPROM defaults) of AUTOC to find KR/KX4 support*/
+ if (hw->mac.orig_link_settings_stored)
+ orig_autoc = hw->mac.orig_autoc;
+ else
+ orig_autoc = autoc;
+
+ link_mode = autoc & TXGBE_AUTOC_LMS_MASK;
+ pma_pmd_1g = autoc & TXGBE_AUTOC_1G_PMA_PMD_MASK;
+
+ if (link_mode == TXGBE_AUTOC_LMS_KX4_KX_KR ||
+ link_mode == TXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
+ link_mode == TXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
+ /* Set KX4/KX/KR support according to speed requested */
+ autoc &= ~(TXGBE_AUTOC_KX_SUPP |
+ TXGBE_AUTOC_KX4_SUPP |
+ TXGBE_AUTOC_KR_SUPP);
+ if (speed & TXGBE_LINK_SPEED_10GB_FULL) {
+ if (orig_autoc & TXGBE_AUTOC_KX4_SUPP)
+ autoc |= TXGBE_AUTOC_KX4_SUPP;
+ if (orig_autoc & TXGBE_AUTOC_KR_SUPP)
+ autoc |= TXGBE_AUTOC_KR_SUPP;
+ }
+ if (speed & TXGBE_LINK_SPEED_1GB_FULL)
+ autoc |= TXGBE_AUTOC_KX_SUPP;
+ } else if ((pma_pmd_1g == TXGBE_AUTOC_1G_SFI) &&
+ (link_mode == TXGBE_AUTOC_LMS_1G_LINK_NO_AN ||
+ link_mode == TXGBE_AUTOC_LMS_1G_AN)) {
+ /* Switch from 1G SFI to 10G SFI if requested */
+ if (speed == TXGBE_LINK_SPEED_10GB_FULL &&
+ pma_pmd_10gs == TXGBE_AUTOC_10GS_SFI) {
+ autoc &= ~TXGBE_AUTOC_LMS_MASK;
+ autoc |= TXGBE_AUTOC_LMS_10G;
+ }
+ } else if ((pma_pmd_10gs == TXGBE_AUTOC_10GS_SFI) &&
+ (link_mode == TXGBE_AUTOC_LMS_10G)) {
+ /* Switch from 10G SFI to 1G SFI if requested */
+ if (speed == TXGBE_LINK_SPEED_1GB_FULL &&
+ pma_pmd_1g == TXGBE_AUTOC_1G_SFI) {
+ autoc &= ~TXGBE_AUTOC_LMS_MASK;
+ if (autoneg || hw->phy.type == txgbe_phy_qsfp_intel)
+ autoc |= TXGBE_AUTOC_LMS_1G_AN;
+ else
+ autoc |= TXGBE_AUTOC_LMS_1G_LINK_NO_AN;
+ }
}
- /* Identify the PHY or SFP module */
- err = phy->identify(hw);
- if (err == TXGBE_ERR_SFP_NOT_SUPPORTED)
- goto init_phy_ops_out;
+ autoc &= ~TXGBE_AUTOC_SPEED_MASK;
+ autoc |= TXGBE_AUTOC_SPEED(speed);
+ autoc &= ~TXGBE_AUTOC_AUTONEG;
+ autoc |= (autoneg ? TXGBE_AUTOC_AUTONEG : 0);
- /* Setup function pointers based on detected SFP module and speeds */
- txgbe_init_mac_link_ops(hw);
+ /* Restart link */
+ hw->mac.autoc_write(hw, autoc);
-init_phy_ops_out:
- return err;
+ /* Add delay to filter out noises during initial link setup */
+ msec_delay(50);
+
+ return status;
}
/**
- * txgbe_init_ops_pf - Inits func ptrs and MAC type
+ * txgbe_setup_copper_link_raptor - Set the PHY autoneg advertised field
* @hw: pointer to hardware structure
+ * @speed: new link speed
+ * @autoneg_wait_to_complete: true if waiting is needed to complete
*
- * Initialize the function pointers and assign the MAC type.
- * Does not touch the hardware.
+ * Restarts link on PHY and MAC based on settings passed in.
**/
-s32 txgbe_init_ops_pf(struct txgbe_hw *hw)
+static s32 txgbe_setup_copper_link_raptor(struct txgbe_hw *hw,
+ u32 speed,
+ bool autoneg_wait_to_complete)
{
- struct txgbe_bus_info *bus = &hw->bus;
- struct txgbe_mac_info *mac = &hw->mac;
- struct txgbe_phy_info *phy = &hw->phy;
- struct txgbe_rom_info *rom = &hw->rom;
-
- DEBUGFUNC("txgbe_init_ops_pf");
-
- /* BUS */
- bus->set_lan_id = txgbe_set_lan_id_multi_port;
-
- /* PHY */
- phy->identify = txgbe_identify_phy;
- phy->init = txgbe_init_phy_raptor;
- phy->read_reg = txgbe_read_phy_reg;
- phy->write_reg = txgbe_write_phy_reg;
- phy->read_reg_mdi = txgbe_read_phy_reg_mdi;
- phy->write_reg_mdi = txgbe_write_phy_reg_mdi;
- phy->read_i2c_byte = txgbe_read_i2c_byte;
- phy->write_i2c_byte = txgbe_write_i2c_byte;
- phy->read_i2c_eeprom = txgbe_read_i2c_eeprom;
- phy->write_i2c_eeprom = txgbe_write_i2c_eeprom;
- phy->reset = txgbe_reset_phy;
+ s32 status;
- /* MAC */
- mac->init_hw = txgbe_init_hw;
- mac->reset_hw = txgbe_reset_hw;
- mac->num_rar_entries = TXGBE_RAPTOR_RAR_ENTRIES;
+ DEBUGFUNC("txgbe_setup_copper_link_raptor");
- /* EEPROM */
- rom->init_params = txgbe_init_eeprom_params;
- rom->read16 = txgbe_ee_read16;
- rom->readw_buffer = txgbe_ee_readw_buffer;
- rom->readw_sw = txgbe_ee_readw_sw;
- rom->read32 = txgbe_ee_read32;
- rom->write16 = txgbe_ee_write16;
- rom->writew_buffer = txgbe_ee_writew_buffer;
- rom->writew_sw = txgbe_ee_writew_sw;
- rom->write32 = txgbe_ee_write32;
- rom->validate_checksum = txgbe_validate_eeprom_checksum;
- rom->update_checksum = txgbe_update_eeprom_checksum;
- rom->calc_checksum = txgbe_calc_eeprom_checksum;
+ /* Setup the PHY according to input speed */
+ status = hw->phy.setup_link_speed(hw, speed,
+ autoneg_wait_to_complete);
+ /* Set up MAC */
+ txgbe_start_mac_link_raptor(hw, autoneg_wait_to_complete);
- return 0;
+ return status;
}
static int
return err;
}
+static void
+txgbe_reset_misc(struct txgbe_hw *hw)
+{
+ int i;
+ u32 value;
+
+ wr32(hw, TXGBE_ISBADDRL, hw->isb_dma & 0x00000000FFFFFFFF);
+ wr32(hw, TXGBE_ISBADDRH, hw->isb_dma >> 32);
+
+ value = rd32_epcs(hw, SR_XS_PCS_CTRL2);
+ if ((value & 0x3) != SR_PCS_CTRL2_TYPE_SEL_X)
+ hw->link_status = TXGBE_LINK_STATUS_NONE;
+
+ /* receive packets that size > 2048 */
+ wr32m(hw, TXGBE_MACRXCFG,
+ TXGBE_MACRXCFG_JUMBO, TXGBE_MACRXCFG_JUMBO);
+
+ wr32m(hw, TXGBE_FRMSZ, TXGBE_FRMSZ_MAX_MASK,
+ TXGBE_FRMSZ_MAX(TXGBE_FRAME_SIZE_DFT));
+
+ /* clear counters on read */
+ wr32m(hw, TXGBE_MACCNTCTL,
+ TXGBE_MACCNTCTL_RC, TXGBE_MACCNTCTL_RC);
+
+ wr32m(hw, TXGBE_RXFCCFG,
+ TXGBE_RXFCCFG_FC, TXGBE_RXFCCFG_FC);
+ wr32m(hw, TXGBE_TXFCCFG,
+ TXGBE_TXFCCFG_FC, TXGBE_TXFCCFG_FC);
+
+ wr32m(hw, TXGBE_MACRXFLT,
+ TXGBE_MACRXFLT_PROMISC, TXGBE_MACRXFLT_PROMISC);
+
+ wr32m(hw, TXGBE_RSTSTAT,
+ TXGBE_RSTSTAT_TMRINIT_MASK, TXGBE_RSTSTAT_TMRINIT(30));
+
+ /* errata 4: initialize mng flex tbl and wakeup flex tbl*/
+ wr32(hw, TXGBE_MNGFLEXSEL, 0);
+ for (i = 0; i < 16; i++) {
+ wr32(hw, TXGBE_MNGFLEXDWL(i), 0);
+ wr32(hw, TXGBE_MNGFLEXDWH(i), 0);
+ wr32(hw, TXGBE_MNGFLEXMSK(i), 0);
+ }
+ wr32(hw, TXGBE_LANFLEXSEL, 0);
+ for (i = 0; i < 16; i++) {
+ wr32(hw, TXGBE_LANFLEXDWL(i), 0);
+ wr32(hw, TXGBE_LANFLEXDWH(i), 0);
+ wr32(hw, TXGBE_LANFLEXMSK(i), 0);
+ }
+
+ /* set pause frame dst mac addr */
+ wr32(hw, TXGBE_RXPBPFCDMACL, 0xC2000001);
+ wr32(hw, TXGBE_RXPBPFCDMACH, 0x0180);
+
+ hw->mac.init_thermal_sensor_thresh(hw);
+
+ /* enable mac transmitter */
+ wr32m(hw, TXGBE_MACTXCFG, TXGBE_MACTXCFG_TXE, TXGBE_MACTXCFG_TXE);
+
+ hw->mac.autoc = hw->mac.orig_autoc;
+ for (i = 0; i < 4; i++)
+ wr32m(hw, TXGBE_IVAR(i), 0x80808080, 0);
+}
+
/**
* txgbe_reset_hw - Perform hardware reset
* @hw: pointer to hardware structure
}
usec_delay(10);
+ txgbe_reset_misc(hw);
+
if (hw->bus.lan_id == 0) {
status = txgbe_check_flash_load(hw,
TXGBE_ILDRSTAT_SWRST_LAN0);
*/
if (!hw->mac.orig_link_settings_stored) {
hw->mac.orig_autoc = hw->mac.autoc_read(hw);
- hw->mac.autoc_write(hw, hw->mac.orig_autoc);
hw->mac.orig_link_settings_stored = true;
} else {
hw->mac.orig_autoc = autoc;
}
+ if (hw->phy.ffe_set) {
+ /* Make sure phy power is up */
+ msec_delay(50);
+
+ /* A temporary solution to set phy */
+ txgbe_set_phy_temp(hw);
+ }
+
/* Store the permanent mac address */
hw->mac.get_mac_addr(hw, hw->mac.perm_addr);
return status;
}
+/**
+ * txgbe_fdir_check_cmd_complete - poll to check whether FDIRPICMD is complete
+ * @hw: pointer to hardware structure
+ * @fdircmd: current value of FDIRCMD register
+ */
+static s32 txgbe_fdir_check_cmd_complete(struct txgbe_hw *hw, u32 *fdircmd)
+{
+ int i;
+
+ for (i = 0; i < TXGBE_FDIRCMD_CMD_POLL; i++) {
+ *fdircmd = rd32(hw, TXGBE_FDIRPICMD);
+ if (!(*fdircmd & TXGBE_FDIRPICMD_OP_MASK))
+ return 0;
+ usec_delay(10);
+ }
+
+ return TXGBE_ERR_FDIR_CMD_INCOMPLETE;
+}
+
+/**
+ * txgbe_reinit_fdir_tables - Reinitialize Flow Director tables.
+ * @hw: pointer to hardware structure
+ **/
+s32 txgbe_reinit_fdir_tables(struct txgbe_hw *hw)
+{
+ s32 err;
+ int i;
+ u32 fdirctrl = rd32(hw, TXGBE_FDIRCTL);
+ u32 fdircmd;
+ fdirctrl &= ~TXGBE_FDIRCTL_INITDONE;
+
+ DEBUGFUNC("txgbe_reinit_fdir_tables");
+
+ /*
+ * Before starting reinitialization process,
+ * FDIRPICMD.OP must be zero.
+ */
+ err = txgbe_fdir_check_cmd_complete(hw, &fdircmd);
+ if (err) {
+ DEBUGOUT("Flow Director previous command did not complete, aborting table re-initialization.\n");
+ return err;
+ }
+
+ wr32(hw, TXGBE_FDIRFREE, 0);
+ txgbe_flush(hw);
+ /*
+ * adapters flow director init flow cannot be restarted,
+ * Workaround silicon errata by performing the following steps
+ * before re-writing the FDIRCTL control register with the same value.
+ * - write 1 to bit 8 of FDIRPICMD register &
+ * - write 0 to bit 8 of FDIRPICMD register
+ */
+ wr32m(hw, TXGBE_FDIRPICMD, TXGBE_FDIRPICMD_CLR, TXGBE_FDIRPICMD_CLR);
+ txgbe_flush(hw);
+ wr32m(hw, TXGBE_FDIRPICMD, TXGBE_FDIRPICMD_CLR, 0);
+ txgbe_flush(hw);
+ /*
+ * Clear FDIR Hash register to clear any leftover hashes
+ * waiting to be programmed.
+ */
+ wr32(hw, TXGBE_FDIRPIHASH, 0x00);
+ txgbe_flush(hw);
+
+ wr32(hw, TXGBE_FDIRCTL, fdirctrl);
+ txgbe_flush(hw);
+
+ /* Poll init-done after we write FDIRCTL register */
+ for (i = 0; i < TXGBE_FDIR_INIT_DONE_POLL; i++) {
+ if (rd32m(hw, TXGBE_FDIRCTL, TXGBE_FDIRCTL_INITDONE))
+ break;
+ msec_delay(1);
+ }
+ if (i >= TXGBE_FDIR_INIT_DONE_POLL) {
+ DEBUGOUT("Flow Director Signature poll time exceeded!\n");
+ return TXGBE_ERR_FDIR_REINIT_FAILED;
+ }
+
+ /* Clear FDIR statistics registers (read to clear) */
+ rd32(hw, TXGBE_FDIRUSED);
+ rd32(hw, TXGBE_FDIRFAIL);
+ rd32(hw, TXGBE_FDIRMATCH);
+ rd32(hw, TXGBE_FDIRMISS);
+ rd32(hw, TXGBE_FDIRLEN);
+
+ return 0;
+}
+
+/**
+ * txgbe_start_hw_raptor - Prepare hardware for Tx/Rx
+ * @hw: pointer to hardware structure
+ *
+ * Starts the hardware using the generic start_hw function
+ * and the generation start_hw function.
+ * Then performs revision-specific operations, if any.
+ **/
+s32 txgbe_start_hw_raptor(struct txgbe_hw *hw)
+{
+ s32 err = 0;
+
+ DEBUGFUNC("txgbe_start_hw_raptor");
+
+ err = txgbe_start_hw(hw);
+ if (err != 0)
+ goto out;
+
+ err = txgbe_start_hw_gen2(hw);
+ if (err != 0)
+ goto out;
+
+ /* We need to run link autotry after the driver loads */
+ hw->mac.autotry_restart = true;
+
+out:
+ return err;
+}
+
+/**
+ * txgbe_enable_rx_dma_raptor - Enable the Rx DMA unit
+ * @hw: pointer to hardware structure
+ * @regval: register value to write to RXCTRL
+ *
+ * Enables the Rx DMA unit
+ **/
+s32 txgbe_enable_rx_dma_raptor(struct txgbe_hw *hw, u32 regval)
+{
+ DEBUGFUNC("txgbe_enable_rx_dma_raptor");
+
+ /*
+ * Workaround silicon errata when enabling the Rx datapath.
+ * If traffic is incoming before we enable the Rx unit, it could hang
+ * the Rx DMA unit. Therefore, make sure the security engine is
+ * completely disabled prior to enabling the Rx unit.
+ */
+
+ hw->mac.disable_sec_rx_path(hw);
+
+ if (regval & TXGBE_PBRXCTL_ENA)
+ txgbe_enable_rx(hw);
+ else
+ txgbe_disable_rx(hw);
+
+ hw->mac.enable_sec_rx_path(hw);
+
+ return 0;
+}
+
+/**
+ * txgbe_verify_lesm_fw_enabled_raptor - Checks LESM FW module state.
+ * @hw: pointer to hardware structure
+ *
+ * Returns true if the LESM FW module is present and enabled. Otherwise
+ * returns false. Smart Speed must be disabled if LESM FW module is enabled.
+ **/
+bool txgbe_verify_lesm_fw_enabled_raptor(struct txgbe_hw *hw)
+{
+ bool lesm_enabled = false;
+ u16 fw_offset, fw_lesm_param_offset, fw_lesm_state;
+ s32 status;
+
+ DEBUGFUNC("txgbe_verify_lesm_fw_enabled_raptor");
+
+ /* get the offset to the Firmware Module block */
+ status = hw->rom.read16(hw, TXGBE_FW_PTR, &fw_offset);
+
+ if (status != 0 || fw_offset == 0 || fw_offset == 0xFFFF)
+ goto out;
+
+ /* get the offset to the LESM Parameters block */
+ status = hw->rom.read16(hw, (fw_offset +
+ TXGBE_FW_LESM_PARAMETERS_PTR),
+ &fw_lesm_param_offset);
+
+ if (status != 0 ||
+ fw_lesm_param_offset == 0 || fw_lesm_param_offset == 0xFFFF)
+ goto out;
+
+ /* get the LESM state word */
+ status = hw->rom.read16(hw, (fw_lesm_param_offset +
+ TXGBE_FW_LESM_STATE_1),
+ &fw_lesm_state);
+
+ if (status == 0 && (fw_lesm_state & TXGBE_FW_LESM_STATE_ENABLED))
+ lesm_enabled = true;
+
+out:
+ lesm_enabled = false;
+ return lesm_enabled;
+}
+
+/**
+ * txgbe_reset_pipeline_raptor - perform pipeline reset
+ *
+ * @hw: pointer to hardware structure
+ *
+ * Reset pipeline by asserting Restart_AN together with LMS change to ensure
+ * full pipeline reset. This function assumes the SW/FW lock is held.
+ **/
+s32 txgbe_reset_pipeline_raptor(struct txgbe_hw *hw)
+{
+ s32 err = 0;
+ u64 autoc;
+
+ autoc = hw->mac.autoc_read(hw);
+
+ /* Enable link if disabled in NVM */
+ if (autoc & TXGBE_AUTOC_LINK_DIA_MASK)
+ autoc &= ~TXGBE_AUTOC_LINK_DIA_MASK;
+
+ autoc |= TXGBE_AUTOC_AN_RESTART;
+ /* Write AUTOC register with toggled LMS[2] bit and Restart_AN */
+ hw->mac.autoc_write(hw, autoc ^ TXGBE_AUTOC_LMS_AN);
+
+ /* Write AUTOC register with original LMS field and Restart_AN */
+ hw->mac.autoc_write(hw, autoc);
+ txgbe_flush(hw);
+
+ return err;
+}
+
git.droids-corp.org / dpdk.git / blobdiff