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Diffstat (limited to 'drivers/net/chelsio/subr.c')
| -rw-r--r-- | drivers/net/chelsio/subr.c | 812 |
1 files changed, 812 insertions, 0 deletions
diff --git a/drivers/net/chelsio/subr.c b/drivers/net/chelsio/subr.c new file mode 100644 index 0000000..1ebb5d1 --- /dev/null +++ b/drivers/net/chelsio/subr.c @@ -0,0 +1,812 @@ +/***************************************************************************** + * * + * File: subr.c * + * $Revision: 1.27 $ * + * $Date: 2005/06/22 01:08:36 $ * + * Description: * + * Various subroutines (intr,pio,etc.) used by Chelsio 10G Ethernet driver. * + * part of the Chelsio 10Gb Ethernet Driver. * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License, version 2, as * + * published by the Free Software Foundation. * + * * + * You should have received a copy of the GNU General Public License along * + * with this program; if not, write to the Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * + * * + * http://www.chelsio.com * + * * + * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. * + * All rights reserved. * + * * + * Maintainers: maintainers@chelsio.com * + * * + * Authors: Dimitrios Michailidis <dm@chelsio.com> * + * Tina Yang <tainay@chelsio.com> * + * Felix Marti <felix@chelsio.com> * + * Scott Bardone <sbardone@chelsio.com> * + * Kurt Ottaway <kottaway@chelsio.com> * + * Frank DiMambro <frank@chelsio.com> * + * * + * History: * + * * + ****************************************************************************/ + +#include "common.h" +#include "elmer0.h" +#include "regs.h" +#include "gmac.h" +#include "cphy.h" +#include "sge.h" +#include "espi.h" + +/** + * t1_wait_op_done - wait until an operation is completed + * @adapter: the adapter performing the operation + * @reg: the register to check for completion + * @mask: a single-bit field within @reg that indicates completion + * @polarity: the value of the field when the operation is completed + * @attempts: number of check iterations + * @delay: delay in usecs between iterations + * + * Wait until an operation is completed by checking a bit in a register + * up to @attempts times. Returns %0 if the operation completes and %1 + * otherwise. + */ +static int t1_wait_op_done(adapter_t *adapter, int reg, u32 mask, int polarity, + int attempts, int delay) +{ + while (1) { + u32 val = readl(adapter->regs + reg) & mask; + + if (!!val == polarity) + return 0; + if (--attempts == 0) + return 1; + if (delay) + udelay(delay); + } +} + +#define TPI_ATTEMPTS 50 + +/* + * Write a register over the TPI interface (unlocked and locked versions). + */ +static int __t1_tpi_write(adapter_t *adapter, u32 addr, u32 value) +{ + int tpi_busy; + + writel(addr, adapter->regs + A_TPI_ADDR); + writel(value, adapter->regs + A_TPI_WR_DATA); + writel(F_TPIWR, adapter->regs + A_TPI_CSR); + + tpi_busy = t1_wait_op_done(adapter, A_TPI_CSR, F_TPIRDY, 1, + TPI_ATTEMPTS, 3); + if (tpi_busy) + CH_ALERT("%s: TPI write to 0x%x failed\n", + adapter->name, addr); + return tpi_busy; +} + +int t1_tpi_write(adapter_t *adapter, u32 addr, u32 value) +{ + int ret; + + spin_lock(&(adapter)->tpi_lock); + ret = __t1_tpi_write(adapter, addr, value); + spin_unlock(&(adapter)->tpi_lock); + return ret; +} + +/* + * Read a register over the TPI interface (unlocked and locked versions). + */ +static int __t1_tpi_read(adapter_t *adapter, u32 addr, u32 *valp) +{ + int tpi_busy; + + writel(addr, adapter->regs + A_TPI_ADDR); + writel(0, adapter->regs + A_TPI_CSR); + + tpi_busy = t1_wait_op_done(adapter, A_TPI_CSR, F_TPIRDY, 1, + TPI_ATTEMPTS, 3); + if (tpi_busy) + CH_ALERT("%s: TPI read from 0x%x failed\n", + adapter->name, addr); + else + *valp = readl(adapter->regs + A_TPI_RD_DATA); + return tpi_busy; +} + +int t1_tpi_read(adapter_t *adapter, u32 addr, u32 *valp) +{ + int ret; + + spin_lock(&(adapter)->tpi_lock); + ret = __t1_tpi_read(adapter, addr, valp); + spin_unlock(&(adapter)->tpi_lock); + return ret; +} + +/* + * Called when a port's link settings change to propagate the new values to the + * associated PHY and MAC. After performing the common tasks it invokes an + * OS-specific handler. + */ +/* static */ void link_changed(adapter_t *adapter, int port_id) +{ + int link_ok, speed, duplex, fc; + struct cphy *phy = adapter->port[port_id].phy; + struct link_config *lc = &adapter->port[port_id].link_config; + + phy->ops->get_link_status(phy, &link_ok, &speed, &duplex, &fc); + + lc->speed = speed < 0 ? SPEED_INVALID : speed; + lc->duplex = duplex < 0 ? DUPLEX_INVALID : duplex; + if (!(lc->requested_fc & PAUSE_AUTONEG)) + fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX); + + if (link_ok && speed >= 0 && lc->autoneg == AUTONEG_ENABLE) { + /* Set MAC speed, duplex, and flow control to match PHY. */ + struct cmac *mac = adapter->port[port_id].mac; + + mac->ops->set_speed_duplex_fc(mac, speed, duplex, fc); + lc->fc = (unsigned char)fc; + } + t1_link_changed(adapter, port_id, link_ok, speed, duplex, fc); +} + +static int t1_pci_intr_handler(adapter_t *adapter) +{ + u32 pcix_cause; + + pci_read_config_dword(adapter->pdev, A_PCICFG_INTR_CAUSE, &pcix_cause); + + if (pcix_cause) { + pci_write_config_dword(adapter->pdev, A_PCICFG_INTR_CAUSE, + pcix_cause); + t1_fatal_err(adapter); /* PCI errors are fatal */ + } + return 0; +} + + +/* + * Wait until Elmer's MI1 interface is ready for new operations. + */ +static int mi1_wait_until_ready(adapter_t *adapter, int mi1_reg) +{ + int attempts = 100, busy; + + do { + u32 val; + + __t1_tpi_read(adapter, mi1_reg, &val); + busy = val & F_MI1_OP_BUSY; + if (busy) + udelay(10); + } while (busy && --attempts); + if (busy) + CH_ALERT("%s: MDIO operation timed out\n", + adapter->name); + return busy; +} + +/* + * MI1 MDIO initialization. + */ +static void mi1_mdio_init(adapter_t *adapter, const struct board_info *bi) +{ + u32 clkdiv = bi->clock_elmer0 / (2 * bi->mdio_mdc) - 1; + u32 val = F_MI1_PREAMBLE_ENABLE | V_MI1_MDI_INVERT(bi->mdio_mdiinv) | + V_MI1_MDI_ENABLE(bi->mdio_mdien) | V_MI1_CLK_DIV(clkdiv); + + if (!(bi->caps & SUPPORTED_10000baseT_Full)) + val |= V_MI1_SOF(1); + t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_CFG, val); +} + +static int mi1_mdio_ext_read(adapter_t *adapter, int phy_addr, int mmd_addr, + int reg_addr, unsigned int *valp) +{ + u32 addr = V_MI1_REG_ADDR(mmd_addr) | V_MI1_PHY_ADDR(phy_addr); + + spin_lock(&(adapter)->tpi_lock); + + /* Write the address we want. */ + __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_ADDR, addr); + __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_DATA, reg_addr); + __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_OP, + MI1_OP_INDIRECT_ADDRESS); + mi1_wait_until_ready(adapter, A_ELMER0_PORT0_MI1_OP); + + /* Write the operation we want. */ + __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_OP, MI1_OP_INDIRECT_READ); + mi1_wait_until_ready(adapter, A_ELMER0_PORT0_MI1_OP); + + /* Read the data. */ + __t1_tpi_read(adapter, A_ELMER0_PORT0_MI1_DATA, valp); + spin_unlock(&(adapter)->tpi_lock); + return 0; +} + +static int mi1_mdio_ext_write(adapter_t *adapter, int phy_addr, int mmd_addr, + int reg_addr, unsigned int val) +{ + u32 addr = V_MI1_REG_ADDR(mmd_addr) | V_MI1_PHY_ADDR(phy_addr); + + spin_lock(&(adapter)->tpi_lock); + + /* Write the address we want. */ + __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_ADDR, addr); + __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_DATA, reg_addr); + __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_OP, + MI1_OP_INDIRECT_ADDRESS); + mi1_wait_until_ready(adapter, A_ELMER0_PORT0_MI1_OP); + + /* Write the data. */ + __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_DATA, val); + __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_OP, MI1_OP_INDIRECT_WRITE); + mi1_wait_until_ready(adapter, A_ELMER0_PORT0_MI1_OP); + spin_unlock(&(adapter)->tpi_lock); + return 0; +} + +static struct mdio_ops mi1_mdio_ext_ops = { + mi1_mdio_init, + mi1_mdio_ext_read, + mi1_mdio_ext_write +}; + +enum { + CH_BRD_N110_1F, + CH_BRD_N210_1F, +}; + +static struct board_info t1_board[] = { + +{ CHBT_BOARD_N110, 1/*ports#*/, + SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE /*caps*/, CHBT_TERM_T1, + CHBT_MAC_PM3393, CHBT_PHY_88X2010, + 125000000/*clk-core*/, 0/*clk-mc3*/, 0/*clk-mc4*/, + 1/*espi-ports*/, 0/*clk-cspi*/, 44/*clk-elmer0*/, 0/*mdien*/, + 0/*mdiinv*/, 1/*mdc*/, 0/*phybaseaddr*/, &t1_pm3393_ops, + &t1_mv88x201x_ops, &mi1_mdio_ext_ops, + "Chelsio N110 1x10GBaseX NIC" }, + +{ CHBT_BOARD_N210, 1/*ports#*/, + SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE /*caps*/, CHBT_TERM_T2, + CHBT_MAC_PM3393, CHBT_PHY_88X2010, + 125000000/*clk-core*/, 0/*clk-mc3*/, 0/*clk-mc4*/, + 1/*espi-ports*/, 0/*clk-cspi*/, 44/*clk-elmer0*/, 0/*mdien*/, + 0/*mdiinv*/, 1/*mdc*/, 0/*phybaseaddr*/, &t1_pm3393_ops, + &t1_mv88x201x_ops, &mi1_mdio_ext_ops, + "Chelsio N210 1x10GBaseX NIC" }, + +}; + +struct pci_device_id t1_pci_tbl[] = { + CH_DEVICE(7, 0, CH_BRD_N110_1F), + CH_DEVICE(10, 1, CH_BRD_N210_1F), + { 0, } +}; + +MODULE_DEVICE_TABLE(pci, t1_pci_tbl); + +/* + * Return the board_info structure with a given index. Out-of-range indices + * return NULL. + */ +const struct board_info *t1_get_board_info(unsigned int board_id) +{ + return board_id < ARRAY_SIZE(t1_board) ? &t1_board[board_id] : NULL; +} + +struct chelsio_vpd_t { + u32 format_version; + u8 serial_number[16]; + u8 mac_base_address[6]; + u8 pad[2]; /* make multiple-of-4 size requirement explicit */ +}; + +#define EEPROMSIZE (8 * 1024) +#define EEPROM_MAX_POLL 4 + +/* + * Read SEEPROM. A zero is written to the flag register when the addres is + * written to the Control register. The hardware device will set the flag to a + * one when 4B have been transferred to the Data register. + */ +int t1_seeprom_read(adapter_t *adapter, u32 addr, u32 *data) +{ + int i = EEPROM_MAX_POLL; + u16 val; + + if (addr >= EEPROMSIZE || (addr & 3)) + return -EINVAL; + + pci_write_config_word(adapter->pdev, A_PCICFG_VPD_ADDR, (u16)addr); + do { + udelay(50); + pci_read_config_word(adapter->pdev, A_PCICFG_VPD_ADDR, &val); + } while (!(val & F_VPD_OP_FLAG) && --i); + + if (!(val & F_VPD_OP_FLAG)) { + CH_ERR("%s: reading EEPROM address 0x%x failed\n", + adapter->name, addr); + return -EIO; + } + pci_read_config_dword(adapter->pdev, A_PCICFG_VPD_DATA, data); + *data = le32_to_cpu(*data); + return 0; +} + +static int t1_eeprom_vpd_get(adapter_t *adapter, struct chelsio_vpd_t *vpd) +{ + int addr, ret = 0; + + for (addr = 0; !ret && addr < sizeof(*vpd); addr += sizeof(u32)) + ret = t1_seeprom_read(adapter, addr, + (u32 *)((u8 *)vpd + addr)); + + return ret; +} + +/* + * Read a port's MAC address from the VPD ROM. + */ +static int vpd_macaddress_get(adapter_t *adapter, int index, u8 mac_addr[]) +{ + struct chelsio_vpd_t vpd; + + if (t1_eeprom_vpd_get(adapter, &vpd)) + return 1; + memcpy(mac_addr, vpd.mac_base_address, 5); + mac_addr[5] = vpd.mac_base_address[5] + index; + return 0; +} + +/* + * Set up the MAC/PHY according to the requested link settings. + * + * If the PHY can auto-negotiate first decide what to advertise, then + * enable/disable auto-negotiation as desired and reset. + * + * If the PHY does not auto-negotiate we just reset it. + * + * If auto-negotiation is off set the MAC to the proper speed/duplex/FC, + * otherwise do it later based on the outcome of auto-negotiation. + */ +int t1_link_start(struct cphy *phy, struct cmac *mac, struct link_config *lc) +{ + unsigned int fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX); + + if (lc->supported & SUPPORTED_Autoneg) { + lc->advertising &= ~(ADVERTISED_ASYM_PAUSE | ADVERTISED_PAUSE); + if (fc) { + lc->advertising |= ADVERTISED_ASYM_PAUSE; + if (fc == (PAUSE_RX | PAUSE_TX)) + lc->advertising |= ADVERTISED_PAUSE; + } + phy->ops->advertise(phy, lc->advertising); + + if (lc->autoneg == AUTONEG_DISABLE) { + lc->speed = lc->requested_speed; + lc->duplex = lc->requested_duplex; + lc->fc = (unsigned char)fc; + mac->ops->set_speed_duplex_fc(mac, lc->speed, + lc->duplex, fc); + /* Also disables autoneg */ + phy->ops->set_speed_duplex(phy, lc->speed, lc->duplex); + phy->ops->reset(phy, 0); + } else + phy->ops->autoneg_enable(phy); /* also resets PHY */ + } else { + mac->ops->set_speed_duplex_fc(mac, -1, -1, fc); + lc->fc = (unsigned char)fc; + phy->ops->reset(phy, 0); + } + return 0; +} + +/* + * External interrupt handler for boards using elmer0. + */ +int elmer0_ext_intr_handler(adapter_t *adapter) +{ + struct cphy *phy; + int phy_cause; + u32 cause; + + t1_tpi_read(adapter, A_ELMER0_INT_CAUSE, &cause); + + switch (board_info(adapter)->board) { + case CHBT_BOARD_N210: + case CHBT_BOARD_N110: + if (cause & ELMER0_GP_BIT6) { /* Marvell 88x2010 interrupt */ + phy = adapter->port[0].phy; + phy_cause = phy->ops->interrupt_handler(phy); + if (phy_cause & cphy_cause_link_change) + link_changed(adapter, 0); + } + break; + } + t1_tpi_write(adapter, A_ELMER0_INT_CAUSE, cause); + return 0; +} + +/* Enables all interrupts. */ +void t1_interrupts_enable(adapter_t *adapter) +{ + unsigned int i; + u32 pl_intr; + + adapter->slow_intr_mask = F_PL_INTR_SGE_ERR; + + t1_sge_intr_enable(adapter->sge); + if (adapter->espi) { + adapter->slow_intr_mask |= F_PL_INTR_ESPI; + t1_espi_intr_enable(adapter->espi); + } + + /* Enable MAC/PHY interrupts for each port. */ + for_each_port(adapter, i) { + adapter->port[i].mac->ops->interrupt_enable(adapter->port[i].mac); + adapter->port[i].phy->ops->interrupt_enable(adapter->port[i].phy); + } + + /* Enable PCIX & external chip interrupts on ASIC boards. */ + pl_intr = readl(adapter->regs + A_PL_ENABLE); + + /* PCI-X interrupts */ + pci_write_config_dword(adapter->pdev, A_PCICFG_INTR_ENABLE, + 0xffffffff); + + adapter->slow_intr_mask |= F_PL_INTR_EXT | F_PL_INTR_PCIX; + pl_intr |= F_PL_INTR_EXT | F_PL_INTR_PCIX; + writel(pl_intr, adapter->regs + A_PL_ENABLE); +} + +/* Disables all interrupts. */ +void t1_interrupts_disable(adapter_t* adapter) +{ + unsigned int i; + + t1_sge_intr_disable(adapter->sge); + if (adapter->espi) + t1_espi_intr_disable(adapter->espi); + + /* Disable MAC/PHY interrupts for each port. */ + for_each_port(adapter, i) { + adapter->port[i].mac->ops->interrupt_disable(adapter->port[i].mac); + adapter->port[i].phy->ops->interrupt_disable(adapter->port[i].phy); + } + + /* Disable PCIX & external chip interrupts. */ + writel(0, adapter->regs + A_PL_ENABLE); + + /* PCI-X interrupts */ + pci_write_config_dword(adapter->pdev, A_PCICFG_INTR_ENABLE, 0); + + adapter->slow_intr_mask = 0; +} + +/* Clears all interrupts */ +void t1_interrupts_clear(adapter_t* adapter) +{ + unsigned int i; + u32 pl_intr; + + + t1_sge_intr_clear(adapter->sge); + if (adapter->espi) + t1_espi_intr_clear(adapter->espi); + + /* Clear MAC/PHY interrupts for each port. */ + for_each_port(adapter, i) { + adapter->port[i].mac->ops->interrupt_clear(adapter->port[i].mac); + adapter->port[i].phy->ops->interrupt_clear(adapter->port[i].phy); + } + + /* Enable interrupts for external devices. */ + pl_intr = readl(adapter->regs + A_PL_CAUSE); + + writel(pl_intr | F_PL_INTR_EXT | F_PL_INTR_PCIX, + adapter->regs + A_PL_CAUSE); + + /* PCI-X interrupts */ + pci_write_config_dword(adapter->pdev, A_PCICFG_INTR_CAUSE, 0xffffffff); +} + +/* + * Slow path interrupt handler for ASICs. + */ +int t1_slow_intr_handler(adapter_t *adapter) +{ + u32 cause = readl(adapter->regs + A_PL_CAUSE); + + cause &= adapter->slow_intr_mask; + if (!cause) + return 0; + if (cause & F_PL_INTR_SGE_ERR) + t1_sge_intr_error_handler(adapter->sge); + if (cause & F_PL_INTR_ESPI) + t1_espi_intr_handler(adapter->espi); + if (cause & F_PL_INTR_PCIX) + t1_pci_intr_handler(adapter); + if (cause & F_PL_INTR_EXT) + t1_elmer0_ext_intr(adapter); + + /* Clear the interrupts just processed. */ + writel(cause, adapter->regs + A_PL_CAUSE); + (void)readl(adapter->regs + A_PL_CAUSE); /* flush writes */ + return 1; +} + +/* Pause deadlock avoidance parameters */ +#define DROP_MSEC 16 +#define DROP_PKTS_CNT 1 + +static void set_csum_offload(adapter_t *adapter, u32 csum_bit, int enable) +{ + u32 val = readl(adapter->regs + A_TP_GLOBAL_CONFIG); + + if (enable) + val |= csum_bit; + else + val &= ~csum_bit; + writel(val, adapter->regs + A_TP_GLOBAL_CONFIG); +} + +void t1_tp_set_ip_checksum_offload(adapter_t *adapter, int enable) +{ + set_csum_offload(adapter, F_IP_CSUM, enable); +} + +void t1_tp_set_udp_checksum_offload(adapter_t *adapter, int enable) +{ + set_csum_offload(adapter, F_UDP_CSUM, enable); +} + +void t1_tp_set_tcp_checksum_offload(adapter_t *adapter, int enable) +{ + set_csum_offload(adapter, F_TCP_CSUM, enable); +} + +static void t1_tp_reset(adapter_t *adapter, unsigned int tp_clk) +{ + u32 val; + + val = F_TP_IN_CSPI_CPL | F_TP_IN_CSPI_CHECK_IP_CSUM | + F_TP_IN_CSPI_CHECK_TCP_CSUM | F_TP_IN_ESPI_ETHERNET; + val |= F_TP_IN_ESPI_CHECK_IP_CSUM | + F_TP_IN_ESPI_CHECK_TCP_CSUM; + writel(val, adapter->regs + A_TP_IN_CONFIG); + writel(F_TP_OUT_CSPI_CPL | + F_TP_OUT_ESPI_ETHERNET | + F_TP_OUT_ESPI_GENERATE_IP_CSUM | + F_TP_OUT_ESPI_GENERATE_TCP_CSUM, + adapter->regs + A_TP_OUT_CONFIG); + + val = readl(adapter->regs + A_TP_GLOBAL_CONFIG); + val &= ~(F_IP_CSUM | F_UDP_CSUM | F_TCP_CSUM); + writel(val, adapter->regs + A_TP_GLOBAL_CONFIG); + + /* + * Enable pause frame deadlock prevention. + */ + if (is_T2(adapter)) { + u32 drop_ticks = DROP_MSEC * (tp_clk / 1000); + + writel(F_ENABLE_TX_DROP | F_ENABLE_TX_ERROR | + V_DROP_TICKS_CNT(drop_ticks) | + V_NUM_PKTS_DROPPED(DROP_PKTS_CNT), + adapter->regs + A_TP_TX_DROP_CONFIG); + } + + writel(F_TP_RESET, adapter->regs + A_TP_RESET); +} + +int __devinit t1_get_board_rev(adapter_t *adapter, const struct board_info *bi, + struct adapter_params *p) +{ + p->chip_version = bi->chip_term; + if (p->chip_version == CHBT_TERM_T1 || + p->chip_version == CHBT_TERM_T2) { + u32 val = readl(adapter->regs + A_TP_PC_CONFIG); + + val = G_TP_PC_REV(val); + if (val == 2) + p->chip_revision = TERM_T1B; + else if (val == 3) + p->chip_revision = TERM_T2; + else + return -1; + } else + return -1; + return 0; +} + +/* + * Enable board components other than the Chelsio chip, such as external MAC + * and PHY. + */ +static int board_init(adapter_t *adapter, const struct board_info *bi) +{ + switch (bi->board) { + case CHBT_BOARD_N110: + case CHBT_BOARD_N210: + writel(V_TPIPAR(0xf), adapter->regs + A_TPI_PAR); + t1_tpi_write(adapter, A_ELMER0_GPO, 0x800); + break; + } + return 0; +} + +/* + * Initialize and configure the Terminator HW modules. Note that external + * MAC and PHYs are initialized separately. + */ +int t1_init_hw_modules(adapter_t *adapter) +{ + int err = -EIO; + const struct board_info *bi = board_info(adapter); + + if (!bi->clock_mc4) { + u32 val = readl(adapter->regs + A_MC4_CFG); + + writel(val | F_READY | F_MC4_SLOW, adapter->regs + A_MC4_CFG); + writel(F_M_BUS_ENABLE | F_TCAM_RESET, + adapter->regs + A_MC5_CONFIG); + } + + if (adapter->espi && t1_espi_init(adapter->espi, bi->chip_mac, + bi->espi_nports)) + goto out_err; + + t1_tp_reset(adapter, bi->clock_core); + + err = t1_sge_configure(adapter->sge, &adapter->params.sge); + if (err) + goto out_err; + + err = 0; + out_err: + return err; +} + +/* + * Determine a card's PCI mode. + */ +static void __devinit get_pci_mode(adapter_t *adapter, struct chelsio_pci_params *p) +{ + static unsigned short speed_map[] = { 33, 66, 100, 133 }; + u32 pci_mode; + + pci_read_config_dword(adapter->pdev, A_PCICFG_MODE, &pci_mode); + p->speed = speed_map[G_PCI_MODE_CLK(pci_mode)]; + p->width = (pci_mode & F_PCI_MODE_64BIT) ? 64 : 32; + p->is_pcix = (pci_mode & F_PCI_MODE_PCIX) != 0; +} + +/* + * Release the structures holding the SW per-Terminator-HW-module state. + */ +void t1_free_sw_modules(adapter_t *adapter) +{ + unsigned int i; + + for_each_port(adapter, i) { + struct cmac *mac = adapter->port[i].mac; + struct cphy *phy = adapter->port[i].phy; + + if (mac) + mac->ops->destroy(mac); + if (phy) + phy->ops->destroy(phy); + } + + if (adapter->sge) + t1_sge_destroy(adapter->sge); + if (adapter->espi) + t1_espi_destroy(adapter->espi); +} + +static void __devinit init_link_config(struct link_config *lc, + const struct board_info *bi) +{ + lc->supported = bi->caps; + lc->requested_speed = lc->speed = SPEED_INVALID; + lc->requested_duplex = lc->duplex = DUPLEX_INVALID; + lc->requested_fc = lc->fc = PAUSE_RX | PAUSE_TX; + if (lc->supported & SUPPORTED_Autoneg) { + lc->advertising = lc->supported; + lc->autoneg = AUTONEG_ENABLE; + lc->requested_fc |= PAUSE_AUTONEG; + } else { + lc->advertising = 0; + lc->autoneg = AUTONEG_DISABLE; + } +} + + +/* + * Allocate and initialize the data structures that hold the SW state of + * the Terminator HW modules. + */ +int __devinit t1_init_sw_modules(adapter_t *adapter, + const struct board_info *bi) +{ + unsigned int i; + + adapter->params.brd_info = bi; + adapter->params.nports = bi->port_number; + adapter->params.stats_update_period = bi->gmac->stats_update_period; + + adapter->sge = t1_sge_create(adapter, &adapter->params.sge); + if (!adapter->sge) { + CH_ERR("%s: SGE initialization failed\n", + adapter->name); + goto error; + } + + if (bi->espi_nports && !(adapter->espi = t1_espi_create(adapter))) { + CH_ERR("%s: ESPI initialization failed\n", + adapter->name); + goto error; + } + + board_init(adapter, bi); + bi->mdio_ops->init(adapter, bi); + if (bi->gphy->reset) + bi->gphy->reset(adapter); + if (bi->gmac->reset) + bi->gmac->reset(adapter); + + for_each_port(adapter, i) { + u8 hw_addr[6]; + struct cmac *mac; + int phy_addr = bi->mdio_phybaseaddr + i; + + adapter->port[i].phy = bi->gphy->create(adapter, phy_addr, + bi->mdio_ops); + if (!adapter->port[i].phy) { + CH_ERR("%s: PHY %d initialization failed\n", + adapter->name, i); + goto error; + } + + adapter->port[i].mac = mac = bi->gmac->create(adapter, i); + if (!mac) { + CH_ERR("%s: MAC %d initialization failed\n", + adapter->name, i); + goto error; + } + + /* + * Get the port's MAC addresses either from the EEPROM if one + * exists or the one hardcoded in the MAC. + */ + if (vpd_macaddress_get(adapter, i, hw_addr)) { + CH_ERR("%s: could not read MAC address from VPD ROM\n", + adapter->port[i].dev->name); + goto error; + } + memcpy(adapter->port[i].dev->dev_addr, hw_addr, ETH_ALEN); + init_link_config(&adapter->port[i].link_config, bi); + } + + get_pci_mode(adapter, &adapter->params.pci); + t1_interrupts_clear(adapter); + return 0; + + error: + t1_free_sw_modules(adapter); + return -1; +} |