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linux/drivers/net/chelsio/subr.c
Scott Bardone 559fb51ba7 Update Chelsio gige net driver. 
- Use extern prefix for functions required.
- Removed a lot of wrappers, including t1_read/write_reg_4.
- Removed various macros, using native kernel calls now.
- Enumerated various #defines.
- Removed a lot of shared code which is not currently used in "NIC only" mode.
- Removed dead code.

Documentation/networking/cxgb.txt:
- Updated release notes for version 2.1.1

drivers/net/chelsio/ch_ethtool.h
- removed file, no longer using ETHTOOL namespace.

drivers/net/chelsio/common.h
- moved code from osdep.h to common.h
- added comment to #endif indicating which symbol it closes.

drivers/net/chelsio/cphy.h
- removed dead code.
- added comment to #endif indicating which symbol it closes.

drivers/net/chelsio/cxgb2.c
- use DMA_{32,64}BIT_MASK in include/linux/dma-mapping.h.
- removed unused code.
- use printk message for link info resembling drivers/net/mii.c.
- no longer using the MODULE_xxx namespace.
- no longer using "pci_" namespace.
- no longer using ETHTOOL namespace.

drivers/net/chelsio/cxgb2.h
- removed file, merged into common.h

drivers/net/chelsio/elmer0.h
- removed dead code.
- added various enums.
- added comment to #endif indicating which symbol it closes.

drivers/net/chelsio/espi.c
- removed various macros, using native kernel calls now.
- removed a lot of wrappers, including t1_read/write_reg_4.

drivers/net/chelsio/espi.h
- added comment to #endif indicating which symbol it closes.

drivers/net/chelsio/gmac.h
- added comment to #endif indicating which symbol it closes.

drivers/net/chelsio/mv88x201x.c
- changes to sync with Chelsio TOT.

drivers/net/chelsio/osdep.h
- removed file, consolidation. osdep was used to translate wrapper functions
  since our code supports multiple OSs. removed wrappers.

  drivers/net/chelsio/pm3393.c
  - removed various macros, using native kernel calls now.
  - removed a lot of wrappers, including t1_read/write_reg_4.
  - removed unused code.

  drivers/net/chelsio/regs.h
  - added a few register entries for future and current feature support.
  - added comment to #endif indicating which symbol it closes.

  drivers/net/chelsio/sge.c
  - rewrote large portion of scatter-gather engine to stabilize
  performance.
  - using u8/u16/u32 kernel types instead of __u8/__u16/__u32 compiler
  types.

  drivers/net/chelsio/sge.h
  - rewrote large portion of scatter-gather engine to stabilize
  performance.
  - added comment to #endif indicating which symbol it closes.

  drivers/net/chelsio/subr.c
  - merged tp.c into subr.c
  - removed various macros, using native kernel calls now.
  - removed a lot of wrappers, including t1_read/write_reg_4.
  - removed unused code.

  drivers/net/chelsio/suni1x10gexp_regs.h
  - modified copyright and authorship of file.
  - added comment to #endif indicating which symbol it closes.

  drivers/net/chelsio/tp.c
  - removed file, merged into subr.c.

  drivers/net/chelsio/tp.h
  - removed file.

  include/linux/pci_ids.h
  - patched to include PCI_VENDOR_ID_CHELSIO 0x1425, removed define from
  our code.
2005-06-23 01:40:19 -04:00

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/*****************************************************************************
* *
* 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;
}
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