/*
* Copyright ( c ) 2003 - 2008 Chelsio , Inc . All rights reserved .
*
* This software is available to you under a choice of one of two
* licenses . You may choose to be licensed under the terms of the GNU
* General Public License ( GPL ) Version 2 , available from the file
* COPYING in the main directory of this source tree , or the
* OpenIB . org BSD license below :
*
* Redistribution and use in source and binary forms , with or
* without modification , are permitted provided that the following
* conditions are met :
*
* - Redistributions of source code must retain the above
* copyright notice , this list of conditions and the following
* disclaimer .
*
* - Redistributions in binary form must reproduce the above
* copyright notice , this list of conditions and the following
* disclaimer in the documentation and / or other materials
* provided with the distribution .
*
* THE SOFTWARE IS PROVIDED " AS IS " , WITHOUT WARRANTY OF ANY KIND ,
* EXPRESS OR IMPLIED , INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY , FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT . IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM , DAMAGES OR OTHER LIABILITY , WHETHER IN AN
* ACTION OF CONTRACT , TORT OR OTHERWISE , ARISING FROM , OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE .
*/
#include <linux/etherdevice.h>
#include "common.h"
#include "regs.h"
#include "sge_defs.h"
#include "firmware_exports.h"
static void t3_port_intr_clear(struct adapter *adapter, int idx);
/**
* t3_wait_op_done_val - 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
* @ valp : where to store the value of the register at completion time
*
* Wait until an operation is completed by checking a bit in a register
* up to @ attempts times . If @ valp is not NULL the value of the register
* at the time it indicated completion is stored there . Returns 0 if the
* operation completes and - EAGAIN otherwise .
*/
int t3_wait_op_done_val(struct adapter *adapter, int reg, u32 mask,
int polarity, int attempts, int delay, u32 *valp)
{
while (1 ) {
u32 val = t3_read_reg(adapter, reg);
if (!!(val & mask) == polarity) {
if (valp)
*valp = val;
return 0 ;
}
if (--attempts == 0 )
return -EAGAIN;
if (delay)
udelay(delay);
}
}
/**
* t3_write_regs - write a bunch of registers
* @ adapter : the adapter to program
* @ p : an array of register address / register value pairs
* @ n : the number of address / value pairs
* @ offset : register address offset
*
* Takes an array of register address / register value pairs and writes each
* value to the corresponding register . Register addresses are adjusted
* by the supplied offset .
*/
void t3_write_regs(struct adapter *adapter, const struct addr_val_pair *p,
int n, unsigned int offset)
{
while (n--) {
t3_write_reg(adapter, p->reg_addr + offset, p->val);
p++;
}
}
/**
* t3_set_reg_field - set a register field to a value
* @ adapter : the adapter to program
* @ addr : the register address
* @ mask : specifies the portion of the register to modify
* @ val : the new value for the register field
*
* Sets a register field specified by the supplied mask to the
* given value .
*/
void t3_set_reg_field(struct adapter *adapter, unsigned int addr, u32 mask,
u32 val)
{
u32 v = t3_read_reg(adapter, addr) & ~mask;
t3_write_reg(adapter, addr, v | val);
t3_read_reg(adapter, addr); /* flush */
}
/**
* t3_read_indirect - read indirectly addressed registers
* @ adap : the adapter
* @ addr_reg : register holding the indirect address
* @ data_reg : register holding the value of the indirect register
* @ vals : where the read register values are stored
* @ start_idx : index of first indirect register to read
* @ nregs : how many indirect registers to read
*
* Reads registers that are accessed indirectly through an address / data
* register pair .
*/
static void t3_read_indirect(struct adapter *adap, unsigned int addr_reg,
unsigned int data_reg, u32 *vals,
unsigned int nregs, unsigned int start_idx)
{
while (nregs--) {
t3_write_reg(adap, addr_reg, start_idx);
*vals++ = t3_read_reg(adap, data_reg);
start_idx++;
}
}
/**
* t3_mc7_bd_read - read from MC7 through backdoor accesses
* @ mc7 : identifies MC7 to read from
* @ start : index of first 64 - bit word to read
* @ n : number of 64 - bit words to read
* @ buf : where to store the read result
*
* Read n 64 - bit words from MC7 starting at word start , using backdoor
* accesses .
*/
int t3_mc7_bd_read(struct mc7 *mc7, unsigned int start, unsigned int n,
u64 *buf)
{
static const int shift[] = { 0 , 0 , 16 , 24 };
static const int step[] = { 0 , 32 , 16 , 8 };
unsigned int size64 = mc7->size / 8 ; /* # of 64-bit words */
struct adapter *adap = mc7->adapter;
if (start >= size64 || start + n > size64)
return -EINVAL;
start *= (8 << mc7->width);
while (n--) {
int i;
u64 val64 = 0 ;
for (i = (1 << mc7->width) - 1 ; i >= 0 ; --i) {
int attempts = 10 ;
u32 val;
t3_write_reg(adap, mc7->offset + A_MC7_BD_ADDR, start);
t3_write_reg(adap, mc7->offset + A_MC7_BD_OP, 0 );
val = t3_read_reg(adap, mc7->offset + A_MC7_BD_OP);
while ((val & F_BUSY) && attempts--)
val = t3_read_reg(adap,
mc7->offset + A_MC7_BD_OP);
if (val & F_BUSY)
return -EIO;
val = t3_read_reg(adap, mc7->offset + A_MC7_BD_DATA1);
if (mc7->width == 0 ) {
val64 = t3_read_reg(adap,
mc7->offset +
A_MC7_BD_DATA0);
val64 |= (u64) val << 32 ;
} else {
if (mc7->width > 1 )
val >>= shift[mc7->width];
val64 |= (u64) val << (step[mc7->width] * i);
}
start += 8 ;
}
*buf++ = val64;
}
return 0 ;
}
/*
* Initialize MI1 .
*/
static void mi1_init(struct adapter *adap, const struct adapter_info *ai)
{
u32 clkdiv = adap->params.vpd.cclk / (2 * adap->params.vpd.mdc) - 1 ;
u32 val = F_PREEN | V_CLKDIV(clkdiv);
t3_write_reg(adap, A_MI1_CFG, val);
}
#define MDIO_ATTEMPTS 20
/*
* MI1 read / write operations for clause 22 PHYs .
*/
static int t3_mi1_read(struct net_device *dev, int phy_addr, int mmd_addr,
u16 reg_addr)
{
struct port_info *pi = netdev_priv(dev);
struct adapter *adapter = pi->adapter;
int ret;
u32 addr = V_REGADDR(reg_addr) | V_PHYADDR(phy_addr);
mutex_lock(&adapter->mdio_lock);
t3_set_reg_field(adapter, A_MI1_CFG, V_ST(M_ST), V_ST(1 ));
t3_write_reg(adapter, A_MI1_ADDR, addr);
t3_write_reg(adapter, A_MI1_OP, V_MDI_OP(2 ));
ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0 , MDIO_ATTEMPTS, 10 );
if (!ret)
ret = t3_read_reg(adapter, A_MI1_DATA);
mutex_unlock(&adapter->mdio_lock);
return ret;
}
static int t3_mi1_write(struct net_device *dev, int phy_addr, int mmd_addr,
u16 reg_addr, u16 val)
{
struct port_info *pi = netdev_priv(dev);
struct adapter *adapter = pi->adapter;
int ret;
u32 addr = V_REGADDR(reg_addr) | V_PHYADDR(phy_addr);
mutex_lock(&adapter->mdio_lock);
t3_set_reg_field(adapter, A_MI1_CFG, V_ST(M_ST), V_ST(1 ));
t3_write_reg(adapter, A_MI1_ADDR, addr);
t3_write_reg(adapter, A_MI1_DATA, val);
t3_write_reg(adapter, A_MI1_OP, V_MDI_OP(1 ));
ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0 , MDIO_ATTEMPTS, 10 );
mutex_unlock(&adapter->mdio_lock);
return ret;
}
static const struct mdio_ops mi1_mdio_ops = {
.read = t3_mi1_read,
.write = t3_mi1_write,
.mode_support = MDIO_SUPPORTS_C22
};
/*
* Performs the address cycle for clause 45 PHYs .
* Must be called with the MDIO_LOCK held .
*/
static int mi1_wr_addr(struct adapter *adapter, int phy_addr, int mmd_addr,
int reg_addr)
{
u32 addr = V_REGADDR(mmd_addr) | V_PHYADDR(phy_addr);
t3_set_reg_field(adapter, A_MI1_CFG, V_ST(M_ST), 0 );
t3_write_reg(adapter, A_MI1_ADDR, addr);
t3_write_reg(adapter, A_MI1_DATA, reg_addr);
t3_write_reg(adapter, A_MI1_OP, V_MDI_OP(0 ));
return t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0 ,
MDIO_ATTEMPTS, 10 );
}
/*
* MI1 read / write operations for indirect - addressed PHYs .
*/
static int mi1_ext_read(struct net_device *dev, int phy_addr, int mmd_addr,
u16 reg_addr)
{
struct port_info *pi = netdev_priv(dev);
struct adapter *adapter = pi->adapter;
int ret;
mutex_lock(&adapter->mdio_lock);
ret = mi1_wr_addr(adapter, phy_addr, mmd_addr, reg_addr);
if (!ret) {
t3_write_reg(adapter, A_MI1_OP, V_MDI_OP(3 ));
ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0 ,
MDIO_ATTEMPTS, 10 );
if (!ret)
ret = t3_read_reg(adapter, A_MI1_DATA);
}
mutex_unlock(&adapter->mdio_lock);
return ret;
}
static int mi1_ext_write(struct net_device *dev, int phy_addr, int mmd_addr,
u16 reg_addr, u16 val)
{
struct port_info *pi = netdev_priv(dev);
struct adapter *adapter = pi->adapter;
int ret;
mutex_lock(&adapter->mdio_lock);
ret = mi1_wr_addr(adapter, phy_addr, mmd_addr, reg_addr);
if (!ret) {
t3_write_reg(adapter, A_MI1_DATA, val);
t3_write_reg(adapter, A_MI1_OP, V_MDI_OP(1 ));
ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0 ,
MDIO_ATTEMPTS, 10 );
}
mutex_unlock(&adapter->mdio_lock);
return ret;
}
static const struct mdio_ops mi1_mdio_ext_ops = {
.read = mi1_ext_read,
.write = mi1_ext_write,
.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22
};
/**
* t3_mdio_change_bits - modify the value of a PHY register
* @ phy : the PHY to operate on
* @ mmd : the device address
* @ reg : the register address
* @ clear : what part of the register value to mask off
* @ set : what part of the register value to set
*
* Changes the value of a PHY register by applying a mask to its current
* value and ORing the result with a new value .
*/
int t3_mdio_change_bits(struct cphy *phy, int mmd, int reg, unsigned int clear,
unsigned int set)
{
int ret;
unsigned int val;
ret = t3_mdio_read(phy, mmd, reg, &val);
if (!ret) {
val &= ~clear;
ret = t3_mdio_write(phy, mmd, reg, val | set);
}
return ret;
}
/**
* t3_phy_reset - reset a PHY block
* @ phy : the PHY to operate on
* @ mmd : the device address of the PHY block to reset
* @ wait : how long to wait for the reset to complete in 1 ms increments
*
* Resets a PHY block and optionally waits for the reset to complete .
* @ mmd should be 0 for 10 / 100 / 1000 PHYs and the device address to reset
* for 10 G PHYs .
*/
int t3_phy_reset(struct cphy *phy, int mmd, int wait)
{
int err;
unsigned int ctl;
err = t3_mdio_change_bits(phy, mmd, MDIO_CTRL1, MDIO_CTRL1_LPOWER,
MDIO_CTRL1_RESET);
if (err || !wait)
return err;
do {
err = t3_mdio_read(phy, mmd, MDIO_CTRL1, &ctl);
if (err)
return err;
ctl &= MDIO_CTRL1_RESET;
if (ctl)
msleep(1 );
} while (ctl && --wait);
return ctl ? -1 : 0 ;
}
/**
* t3_phy_advertise - set the PHY advertisement registers for autoneg
* @ phy : the PHY to operate on
* @ advert : bitmap of capabilities the PHY should advertise
*
* Sets a 10 / 100 / 1000 PHY ' s advertisement registers to advertise the
* requested capabilities .
*/
int t3_phy_advertise(struct cphy *phy, unsigned int advert)
{
int err;
unsigned int val = 0 ;
err = t3_mdio_read(phy, MDIO_DEVAD_NONE, MII_CTRL1000, &val);
if (err)
return err;
val &= ~(ADVERTISE_1000HALF | ADVERTISE_1000FULL);
if (advert & ADVERTISED_1000baseT_Half)
val |= ADVERTISE_1000HALF;
if (advert & ADVERTISED_1000baseT_Full)
val |= ADVERTISE_1000FULL;
err = t3_mdio_write(phy, MDIO_DEVAD_NONE, MII_CTRL1000, val);
if (err)
return err;
val = 1 ;
if (advert & ADVERTISED_10baseT_Half)
val |= ADVERTISE_10HALF;
if (advert & ADVERTISED_10baseT_Full)
val |= ADVERTISE_10FULL;
if (advert & ADVERTISED_100baseT_Half)
val |= ADVERTISE_100HALF;
if (advert & ADVERTISED_100baseT_Full)
val |= ADVERTISE_100FULL;
if (advert & ADVERTISED_Pause)
val |= ADVERTISE_PAUSE_CAP;
if (advert & ADVERTISED_Asym_Pause)
val |= ADVERTISE_PAUSE_ASYM;
return t3_mdio_write(phy, MDIO_DEVAD_NONE, MII_ADVERTISE, val);
}
/**
* t3_phy_advertise_fiber - set fiber PHY advertisement register
* @ phy : the PHY to operate on
* @ advert : bitmap of capabilities the PHY should advertise
*
* Sets a fiber PHY ' s advertisement register to advertise the
* requested capabilities .
*/
int t3_phy_advertise_fiber(struct cphy *phy, unsigned int advert)
{
unsigned int val = 0 ;
if (advert & ADVERTISED_1000baseT_Half)
val |= ADVERTISE_1000XHALF;
if (advert & ADVERTISED_1000baseT_Full)
val |= ADVERTISE_1000XFULL;
if (advert & ADVERTISED_Pause)
val |= ADVERTISE_1000XPAUSE;
if (advert & ADVERTISED_Asym_Pause)
val |= ADVERTISE_1000XPSE_ASYM;
return t3_mdio_write(phy, MDIO_DEVAD_NONE, MII_ADVERTISE, val);
}
/**
* t3_set_phy_speed_duplex - force PHY speed and duplex
* @ phy : the PHY to operate on
* @ speed : requested PHY speed
* @ duplex : requested PHY duplex
*
* Force a 10 / 100 / 1000 PHY ' s speed and duplex . This also disables
* auto - negotiation except for GigE , where auto - negotiation is mandatory .
*/
int t3_set_phy_speed_duplex(struct cphy *phy, int speed, int duplex)
{
int err;
unsigned int ctl;
err = t3_mdio_read(phy, MDIO_DEVAD_NONE, MII_BMCR, &ctl);
if (err)
return err;
if (speed >= 0 ) {
ctl &= ~(BMCR_SPEED100 | BMCR_SPEED1000 | BMCR_ANENABLE);
if (speed == SPEED_100)
ctl |= BMCR_SPEED100;
else if (speed == SPEED_1000)
ctl |= BMCR_SPEED1000;
}
if (duplex >= 0 ) {
ctl &= ~(BMCR_FULLDPLX | BMCR_ANENABLE);
if (duplex == DUPLEX_FULL)
ctl |= BMCR_FULLDPLX;
}
if (ctl & BMCR_SPEED1000) /* auto-negotiation required for GigE */
ctl |= BMCR_ANENABLE;
return t3_mdio_write(phy, MDIO_DEVAD_NONE, MII_BMCR, ctl);
}
int t3_phy_lasi_intr_enable(struct cphy *phy)
{
return t3_mdio_write(phy, MDIO_MMD_PMAPMD, MDIO_PMA_LASI_CTRL,
MDIO_PMA_LASI_LSALARM);
}
int t3_phy_lasi_intr_disable(struct cphy *phy)
{
return t3_mdio_write(phy, MDIO_MMD_PMAPMD, MDIO_PMA_LASI_CTRL, 0 );
}
int t3_phy_lasi_intr_clear(struct cphy *phy)
{
u32 val;
return t3_mdio_read(phy, MDIO_MMD_PMAPMD, MDIO_PMA_LASI_STAT, &val);
}
int t3_phy_lasi_intr_handler(struct cphy *phy)
{
unsigned int status;
int err = t3_mdio_read(phy, MDIO_MMD_PMAPMD, MDIO_PMA_LASI_STAT,
&status);
if (err)
return err;
return (status & MDIO_PMA_LASI_LSALARM) ? cphy_cause_link_change : 0 ;
}
static const struct adapter_info t3_adap_info[] = {
{1 , 1 , 0 ,
F_GPIO2_OEN | F_GPIO4_OEN |
F_GPIO2_OUT_VAL | F_GPIO4_OUT_VAL, { S_GPIO3, S_GPIO5 }, 0 ,
&mi1_mdio_ops, "Chelsio PE9000" },
{1 , 1 , 0 ,
F_GPIO2_OEN | F_GPIO4_OEN |
F_GPIO2_OUT_VAL | F_GPIO4_OUT_VAL, { S_GPIO3, S_GPIO5 }, 0 ,
&mi1_mdio_ops, "Chelsio T302" },
{1 , 0 , 0 ,
F_GPIO1_OEN | F_GPIO6_OEN | F_GPIO7_OEN | F_GPIO10_OEN |
F_GPIO11_OEN | F_GPIO1_OUT_VAL | F_GPIO6_OUT_VAL | F_GPIO10_OUT_VAL,
{ 0 }, SUPPORTED_10000baseT_Full | SUPPORTED_AUI,
&mi1_mdio_ext_ops, "Chelsio T310" },
{1 , 1 , 0 ,
F_GPIO1_OEN | F_GPIO2_OEN | F_GPIO4_OEN | F_GPIO5_OEN | F_GPIO6_OEN |
F_GPIO7_OEN | F_GPIO10_OEN | F_GPIO11_OEN | F_GPIO1_OUT_VAL |
F_GPIO5_OUT_VAL | F_GPIO6_OUT_VAL | F_GPIO10_OUT_VAL,
{ S_GPIO9, S_GPIO3 }, SUPPORTED_10000baseT_Full | SUPPORTED_AUI,
&mi1_mdio_ext_ops, "Chelsio T320" },
{},
{},
{1 , 0 , 0 ,
F_GPIO1_OEN | F_GPIO2_OEN | F_GPIO4_OEN | F_GPIO6_OEN | F_GPIO7_OEN |
F_GPIO10_OEN | F_GPIO1_OUT_VAL | F_GPIO6_OUT_VAL | F_GPIO10_OUT_VAL,
{ S_GPIO9 }, SUPPORTED_10000baseT_Full | SUPPORTED_AUI,
&mi1_mdio_ext_ops, "Chelsio T310" },
{1 , 0 , 0 ,
F_GPIO1_OEN | F_GPIO6_OEN | F_GPIO7_OEN |
F_GPIO1_OUT_VAL | F_GPIO6_OUT_VAL,
{ S_GPIO9 }, SUPPORTED_10000baseT_Full | SUPPORTED_AUI,
&mi1_mdio_ext_ops, "Chelsio N320E-G2" },
};
/*
* Return the adapter_info structure with a given index . Out - of - range indices
* return NULL .
*/
const struct adapter_info *t3_get_adapter_info(unsigned int id)
{
return id < ARRAY_SIZE(t3_adap_info) ? &t3_adap_info[id] : NULL;
}
struct port_type_info {
int (*phy_prep)(struct cphy *phy, struct adapter *adapter,
int phy_addr, const struct mdio_ops *ops);
};
static const struct port_type_info port_types[] = {
{ NULL },
{ t3_ael1002_phy_prep },
{ t3_vsc8211_phy_prep },
{ NULL},
{ t3_xaui_direct_phy_prep },
{ t3_ael2005_phy_prep },
{ t3_qt2045_phy_prep },
{ t3_ael1006_phy_prep },
{ NULL },
{ t3_aq100x_phy_prep },
{ t3_ael2020_phy_prep },
};
#define VPD_ENTRY(name, len) \
u8 name## _kword[2 ]; u8 name## _len; u8 name## _data[len]
/*
* Partial EEPROM Vital Product Data structure . Includes only the ID and
* VPD - R sections .
*/
struct t3_vpd {
u8 id_tag;
u8 id_len[2 ];
u8 id_data[16 ];
u8 vpdr_tag;
u8 vpdr_len[2 ];
VPD_ENTRY(pn, 16 ); /* part number */
VPD_ENTRY(ec, 16 ); /* EC level */
VPD_ENTRY(sn, SERNUM_LEN); /* serial number */
VPD_ENTRY(na, 12 ); /* MAC address base */
VPD_ENTRY(cclk, 6 ); /* core clock */
VPD_ENTRY(mclk, 6 ); /* mem clock */
VPD_ENTRY(uclk, 6 ); /* uP clk */
VPD_ENTRY(mdc, 6 ); /* MDIO clk */
VPD_ENTRY(mt, 2 ); /* mem timing */
VPD_ENTRY(xaui0cfg, 6 ); /* XAUI0 config */
VPD_ENTRY(xaui1cfg, 6 ); /* XAUI1 config */
VPD_ENTRY(port0, 2 ); /* PHY0 complex */
VPD_ENTRY(port1, 2 ); /* PHY1 complex */
VPD_ENTRY(port2, 2 ); /* PHY2 complex */
VPD_ENTRY(port3, 2 ); /* PHY3 complex */
VPD_ENTRY(rv, 1 ); /* csum */
u32 pad; /* for multiple-of-4 sizing and alignment */
};
#define EEPROM_STAT_ADDR 0 x4000
#define VPD_BASE 0 xc00
/**
* t3_seeprom_wp - enable / disable EEPROM write protection
* @ adapter : the adapter
* @ enable : 1 to enable write protection , 0 to disable it
*
* Enables or disables write protection on the serial EEPROM .
*/
int t3_seeprom_wp(struct adapter *adapter, int enable)
{
u32 data = enable ? 0 xc : 0 ;
int ret;
/* EEPROM_STAT_ADDR is outside VPD area, use pci_write_vpd_any() */
ret = pci_write_vpd_any(adapter->pdev, EEPROM_STAT_ADDR, sizeof (u32),
&data);
return ret < 0 ? ret : 0 ;
}
static int vpdstrtouint(char *s, u8 len, unsigned int base, unsigned int *val)
{
char tok[256 ];
memcpy(tok, s, len);
tok[len] = 0 ;
return kstrtouint(strim(tok), base, val);
}
static int vpdstrtou16(char *s, u8 len, unsigned int base, u16 *val)
{
char tok[256 ];
memcpy(tok, s, len);
tok[len] = 0 ;
return kstrtou16(strim(tok), base, val);
}
/**
* get_vpd_params - read VPD parameters from VPD EEPROM
* @ adapter : adapter to read
* @ p : where to store the parameters
*
* Reads card parameters stored in VPD EEPROM .
*/
static int get_vpd_params(struct adapter *adapter, struct vpd_params *p)
{
struct t3_vpd vpd;
u8 base_val = 0 ;
int addr, ret;
/*
* Card information is normally at VPD_BASE but some early cards had
* it at 0 .
*/
ret = pci_read_vpd(adapter->pdev, VPD_BASE, 1 , &base_val);
if (ret < 0 )
return ret;
addr = base_val == PCI_VPD_LRDT_ID_STRING ? VPD_BASE : 0 ;
ret = pci_read_vpd(adapter->pdev, addr, sizeof (vpd), &vpd);
if (ret < 0 )
return ret;
ret = vpdstrtouint(vpd.cclk_data, vpd.cclk_len, 10 , &p->cclk);
if (ret)
return ret;
ret = vpdstrtouint(vpd.mclk_data, vpd.mclk_len, 10 , &p->mclk);
if (ret)
return ret;
ret = vpdstrtouint(vpd.uclk_data, vpd.uclk_len, 10 , &p->uclk);
if (ret)
return ret;
ret = vpdstrtouint(vpd.mdc_data, vpd.mdc_len, 10 , &p->mdc);
if (ret)
return ret;
ret = vpdstrtouint(vpd.mt_data, vpd.mt_len, 10 , &p->mem_timing);
if (ret)
return ret;
memcpy(p->sn, vpd.sn_data, SERNUM_LEN);
/* Old eeproms didn't have port information */
if (adapter->params.rev == 0 && !vpd.port0_data[0 ]) {
p->port_type[0 ] = uses_xaui(adapter) ? 1 : 2 ;
p->port_type[1 ] = uses_xaui(adapter) ? 6 : 2 ;
} else {
p->port_type[0 ] = hex_to_bin(vpd.port0_data[0 ]);
p->port_type[1 ] = hex_to_bin(vpd.port1_data[0 ]);
ret = vpdstrtou16(vpd.xaui0cfg_data, vpd.xaui0cfg_len, 16 ,
&p->xauicfg[0 ]);
if (ret)
return ret;
ret = vpdstrtou16(vpd.xaui1cfg_data, vpd.xaui1cfg_len, 16 ,
&p->xauicfg[1 ]);
if (ret)
return ret;
}
ret = hex2bin(p->eth_base, vpd.na_data, 6 );
if (ret < 0 )
return -EINVAL;
return 0 ;
}
/* serial flash and firmware constants */
enum {
SF_ATTEMPTS = 5 , /* max retries for SF1 operations */
SF_SEC_SIZE = 64 * 1024 , /* serial flash sector size */
SF_SIZE = SF_SEC_SIZE * 8 , /* serial flash size */
/* flash command opcodes */
SF_PROG_PAGE = 2 , /* program page */
SF_WR_DISABLE = 4 , /* disable writes */
SF_RD_STATUS = 5 , /* read status register */
SF_WR_ENABLE = 6 , /* enable writes */
SF_RD_DATA_FAST = 0 xb, /* read flash */
SF_ERASE_SECTOR = 0 xd8, /* erase sector */
FW_FLASH_BOOT_ADDR = 0 x70000, /* start address of FW in flash */
FW_VERS_ADDR = 0 x7fffc, /* flash address holding FW version */
FW_MIN_SIZE = 8 /* at least version and csum */
};
/**
* sf1_read - read data from the serial flash
* @ adapter : the adapter
* @ byte_cnt : number of bytes to read
* @ cont : whether another operation will be chained
* @ valp : where to store the read data
*
* Reads up to 4 bytes of data from the serial flash . The location of
* the read needs to be specified prior to calling this by issuing the
* appropriate commands to the serial flash .
*/
static int sf1_read(struct adapter *adapter, unsigned int byte_cnt, int cont,
u32 *valp)
{
int ret;
if (!byte_cnt || byte_cnt > 4 )
return -EINVAL;
if (t3_read_reg(adapter, A_SF_OP) & F_BUSY)
return -EBUSY;
t3_write_reg(adapter, A_SF_OP, V_CONT(cont) | V_BYTECNT(byte_cnt - 1 ));
ret = t3_wait_op_done(adapter, A_SF_OP, F_BUSY, 0 , SF_ATTEMPTS, 10 );
if (!ret)
*valp = t3_read_reg(adapter, A_SF_DATA);
return ret;
}
/**
* sf1_write - write data to the serial flash
* @ adapter : the adapter
* @ byte_cnt : number of bytes to write
* @ cont : whether another operation will be chained
* @ val : value to write
*
* Writes up to 4 bytes of data to the serial flash . The location of
* the write needs to be specified prior to calling this by issuing the
* appropriate commands to the serial flash .
*/
static int sf1_write(struct adapter *adapter, unsigned int byte_cnt, int cont,
u32 val)
{
if (!byte_cnt || byte_cnt > 4 )
return -EINVAL;
if (t3_read_reg(adapter, A_SF_OP) & F_BUSY)
return -EBUSY;
t3_write_reg(adapter, A_SF_DATA, val);
t3_write_reg(adapter, A_SF_OP,
V_CONT(cont) | V_BYTECNT(byte_cnt - 1 ) | V_OP(1 ));
return t3_wait_op_done(adapter, A_SF_OP, F_BUSY, 0 , SF_ATTEMPTS, 10 );
}
/**
* flash_wait_op - wait for a flash operation to complete
* @ adapter : the adapter
* @ attempts : max number of polls of the status register
* @ delay : delay between polls in ms
*
* Wait for a flash operation to complete by polling the status register .
*/
static int flash_wait_op(struct adapter *adapter, int attempts, int delay)
{
int ret;
u32 status;
while (1 ) {
if ((ret = sf1_write(adapter, 1 , 1 , SF_RD_STATUS)) != 0 ||
(ret = sf1_read(adapter, 1 , 0 , &status)) != 0 )
return ret;
if (!(status & 1 ))
return 0 ;
if (--attempts == 0 )
return -EAGAIN;
if (delay)
msleep(delay);
}
}
/**
* t3_read_flash - read words from serial flash
* @ adapter : the adapter
* @ addr : the start address for the read
* @ nwords : how many 32 - bit words to read
* @ data : where to store the read data
* @ byte_oriented : whether to store data as bytes or as words
*
* Read the specified number of 32 - bit words from the serial flash .
* If @ byte_oriented is set the read data is stored as a byte array
* ( i . e . , big - endian ) , otherwise as 32 - bit words in the platform ' s
* natural endianness .
*/
static int t3_read_flash(struct adapter *adapter, unsigned int addr,
unsigned int nwords, u32 *data, int byte_oriented)
{
int ret;
if (addr + nwords * sizeof (u32) > SF_SIZE || (addr & 3 ))
return -EINVAL;
addr = swab32(addr) | SF_RD_DATA_FAST;
if ((ret = sf1_write(adapter, 4 , 1 , addr)) != 0 ||
(ret = sf1_read(adapter, 1 , 1 , data)) != 0 )
return ret;
for (; nwords; nwords--, data++) {
ret = sf1_read(adapter, 4 , nwords > 1 , data);
if (ret)
return ret;
if (byte_oriented)
*data = htonl(*data);
}
return 0 ;
}
/**
* t3_write_flash - write up to a page of data to the serial flash
* @ adapter : the adapter
* @ addr : the start address to write
* @ n : length of data to write
* @ data : the data to write
*
* Writes up to a page of data ( 256 bytes ) to the serial flash starting
* at the given address .
*/
static int t3_write_flash(struct adapter *adapter, unsigned int addr,
unsigned int n, const u8 *data)
{
int ret;
u32 buf[64 ];
unsigned int i, c, left, val, offset = addr & 0 xff;
if (addr + n > SF_SIZE || offset + n > 256 )
return -EINVAL;
val = swab32(addr) | SF_PROG_PAGE;
if ((ret = sf1_write(adapter, 1 , 0 , SF_WR_ENABLE)) != 0 ||
(ret = sf1_write(adapter, 4 , 1 , val)) != 0 )
return ret;
for (left = n; left; left -= c) {
c = min(left, 4 U);
for (val = 0 , i = 0 ; i < c; ++i)
val = (val << 8 ) + *data++;
ret = sf1_write(adapter, c, c != left, val);
if (ret)
return ret;
}
if ((ret = flash_wait_op(adapter, 5 , 1 )) != 0 )
return ret;
/* Read the page to verify the write succeeded */
ret = t3_read_flash(adapter, addr & ~0 xff, ARRAY_SIZE(buf), buf, 1 );
if (ret)
return ret;
if (memcmp(data - n, (u8 *) buf + offset, n))
return -EIO;
return 0 ;
}
/**
* t3_get_tp_version - read the tp sram version
* @ adapter : the adapter
* @ vers : where to place the version
*
* Reads the protocol sram version from sram .
*/
int t3_get_tp_version(struct adapter *adapter, u32 *vers)
{
int ret;
/* Get version loaded in SRAM */
t3_write_reg(adapter, A_TP_EMBED_OP_FIELD0, 0 );
ret = t3_wait_op_done(adapter, A_TP_EMBED_OP_FIELD0,
1 , 1 , 5 , 1 );
if (ret)
return ret;
*vers = t3_read_reg(adapter, A_TP_EMBED_OP_FIELD1);
return 0 ;
}
/**
* t3_check_tpsram_version - read the tp sram version
* @ adapter : the adapter
*
* Reads the protocol sram version from flash .
*/
int t3_check_tpsram_version(struct adapter *adapter)
{
int ret;
u32 vers;
unsigned int major, minor;
if (adapter->params.rev == T3_REV_A)
return 0 ;
ret = t3_get_tp_version(adapter, &vers);
if (ret)
return ret;
major = G_TP_VERSION_MAJOR(vers);
minor = G_TP_VERSION_MINOR(vers);
if (major == TP_VERSION_MAJOR && minor == TP_VERSION_MINOR)
return 0 ;
else {
CH_ERR(adapter, "found wrong TP version (%u.%u), "
"driver compiled for version %d.%d\n" , major, minor,
TP_VERSION_MAJOR, TP_VERSION_MINOR);
}
return -EINVAL;
}
/**
* t3_check_tpsram - check if provided protocol SRAM
* is compatible with this driver
* @ adapter : the adapter
* @ tp_sram : the firmware image to write
* @ size : image size
*
* Checks if an adapter ' s tp sram is compatible with the driver .
* Returns 0 if the versions are compatible , a negative error otherwise .
*/
int t3_check_tpsram(struct adapter *adapter, const u8 *tp_sram,
unsigned int size)
{
u32 csum;
unsigned int i;
const __be32 *p = (const __be32 *)tp_sram;
/* Verify checksum */
for (csum = 0 , i = 0 ; i < size / sizeof (csum); i++)
csum += ntohl(p[i]);
if (csum != 0 xffffffff) {
CH_ERR(adapter, "corrupted protocol SRAM image, checksum %u\n" ,
csum);
return -EINVAL;
}
return 0 ;
}
enum fw_version_type {
FW_VERSION_N3,
FW_VERSION_T3
};
/**
* t3_get_fw_version - read the firmware version
* @ adapter : the adapter
* @ vers : where to place the version
*
* Reads the FW version from flash .
*/
int t3_get_fw_version(struct adapter *adapter, u32 *vers)
{
return t3_read_flash(adapter, FW_VERS_ADDR, 1 , vers, 0 );
}
/**
* t3_check_fw_version - check if the FW is compatible with this driver
* @ adapter : the adapter
*
* Checks if an adapter ' s FW is compatible with the driver . Returns 0
* if the versions are compatible , a negative error otherwise .
*/
int t3_check_fw_version(struct adapter *adapter)
{
int ret;
u32 vers;
unsigned int type, major, minor;
ret = t3_get_fw_version(adapter, &vers);
if (ret)
return ret;
type = G_FW_VERSION_TYPE(vers);
major = G_FW_VERSION_MAJOR(vers);
minor = G_FW_VERSION_MINOR(vers);
if (type == FW_VERSION_T3 && major == FW_VERSION_MAJOR &&
minor == FW_VERSION_MINOR)
return 0 ;
else if (major != FW_VERSION_MAJOR || minor < FW_VERSION_MINOR)
CH_WARN(adapter, "found old FW minor version(%u.%u), "
"driver compiled for version %u.%u\n" , major, minor,
FW_VERSION_MAJOR, FW_VERSION_MINOR);
else {
CH_WARN(adapter, "found newer FW version(%u.%u), "
"driver compiled for version %u.%u\n" , major, minor,
FW_VERSION_MAJOR, FW_VERSION_MINOR);
return 0 ;
}
return -EINVAL;
}
/**
* t3_flash_erase_sectors - erase a range of flash sectors
* @ adapter : the adapter
* @ start : the first sector to erase
* @ end : the last sector to erase
*
* Erases the sectors in the given range .
*/
static int t3_flash_erase_sectors(struct adapter *adapter, int start, int end)
{
while (start <= end) {
int ret;
if ((ret = sf1_write(adapter, 1 , 0 , SF_WR_ENABLE)) != 0 ||
(ret = sf1_write(adapter, 4 , 0 ,
SF_ERASE_SECTOR | (start << 8 ))) != 0 ||
(ret = flash_wait_op(adapter, 5 , 500 )) != 0 )
return ret;
start++;
}
return 0 ;
}
/**
* t3_load_fw - download firmware
* @ adapter : the adapter
* @ fw_data : the firmware image to write
* @ size : image size
*
* Write the supplied firmware image to the card ' s serial flash .
* The FW image has the following sections : @ size - 8 bytes of code and
* data , followed by 4 bytes of FW version , followed by the 32 - bit
* 1 ' s complement checksum of the whole image .
*/
int t3_load_fw(struct adapter *adapter, const u8 *fw_data, unsigned int size)
{
u32 csum;
unsigned int i;
const __be32 *p = (const __be32 *)fw_data;
int ret, addr, fw_sector = FW_FLASH_BOOT_ADDR >> 16 ;
if ((size & 3 ) || size < FW_MIN_SIZE)
return -EINVAL;
if (size > FW_VERS_ADDR + 8 - FW_FLASH_BOOT_ADDR)
return -EFBIG;
for (csum = 0 , i = 0 ; i < size / sizeof (csum); i++)
csum += ntohl(p[i]);
if (csum != 0 xffffffff) {
CH_ERR(adapter, "corrupted firmware image, checksum %u\n" ,
csum);
return -EINVAL;
}
ret = t3_flash_erase_sectors(adapter, fw_sector, fw_sector);
if (ret)
goto out;
size -= 8 ; /* trim off version and checksum */
for (addr = FW_FLASH_BOOT_ADDR; size;) {
unsigned int chunk_size = min(size, 256 U);
ret = t3_write_flash(adapter, addr, chunk_size, fw_data);
if (ret)
goto out;
addr += chunk_size;
fw_data += chunk_size;
size -= chunk_size;
}
ret = t3_write_flash(adapter, FW_VERS_ADDR, 4 , fw_data);
out:
if (ret)
CH_ERR(adapter, "firmware download failed, error %d\n" , ret);
return ret;
}
#define CIM_CTL_BASE 0 x2000
/**
* t3_cim_ctl_blk_read - read a block from CIM control region
*
* @ adap : the adapter
* @ addr : the start address within the CIM control region
* @ n : number of words to read
* @ valp : where to store the result
*
* Reads a block of 4 - byte words from the CIM control region .
*/
int t3_cim_ctl_blk_read(struct adapter *adap, unsigned int addr,
unsigned int n, unsigned int *valp)
{
int ret = 0 ;
if (t3_read_reg(adap, A_CIM_HOST_ACC_CTRL) & F_HOSTBUSY)
return -EBUSY;
for ( ; !ret && n--; addr += 4 ) {
t3_write_reg(adap, A_CIM_HOST_ACC_CTRL, CIM_CTL_BASE + addr);
ret = t3_wait_op_done(adap, A_CIM_HOST_ACC_CTRL, F_HOSTBUSY,
0 , 5 , 2 );
if (!ret)
*valp++ = t3_read_reg(adap, A_CIM_HOST_ACC_DATA);
}
return ret;
}
static void t3_gate_rx_traffic(struct cmac *mac, u32 *rx_cfg,
u32 *rx_hash_high, u32 *rx_hash_low)
{
/* stop Rx unicast traffic */
t3_mac_disable_exact_filters(mac);
/* stop broadcast, multicast, promiscuous mode traffic */
*rx_cfg = t3_read_reg(mac->adapter, A_XGM_RX_CFG);
t3_set_reg_field(mac->adapter, A_XGM_RX_CFG,
F_ENHASHMCAST | F_DISBCAST | F_COPYALLFRAMES,
F_DISBCAST);
*rx_hash_high = t3_read_reg(mac->adapter, A_XGM_RX_HASH_HIGH);
t3_write_reg(mac->adapter, A_XGM_RX_HASH_HIGH, 0 );
*rx_hash_low = t3_read_reg(mac->adapter, A_XGM_RX_HASH_LOW);
t3_write_reg(mac->adapter, A_XGM_RX_HASH_LOW, 0 );
/* Leave time to drain max RX fifo */
msleep(1 );
}
static void t3_open_rx_traffic(struct cmac *mac, u32 rx_cfg,
u32 rx_hash_high, u32 rx_hash_low)
{
t3_mac_enable_exact_filters(mac);
t3_set_reg_field(mac->adapter, A_XGM_RX_CFG,
F_ENHASHMCAST | F_DISBCAST | F_COPYALLFRAMES,
rx_cfg);
t3_write_reg(mac->adapter, A_XGM_RX_HASH_HIGH, rx_hash_high);
t3_write_reg(mac->adapter, A_XGM_RX_HASH_LOW, rx_hash_low);
}
/**
* t3_link_changed - handle interface link changes
* @ adapter : the adapter
* @ port_id : the port index that changed link state
*
* 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 .
*/
void t3_link_changed(struct adapter *adapter, int port_id)
{
int link_ok, speed, duplex, fc;
struct port_info *pi = adap2pinfo(adapter, port_id);
struct cphy *phy = &pi->phy;
struct cmac *mac = &pi->mac;
struct link_config *lc = &pi->link_config;
phy->ops->get_link_status(phy, &link_ok, &speed, &duplex, &fc);
if (!lc->link_ok && link_ok) {
u32 rx_cfg, rx_hash_high, rx_hash_low;
u32 status;
t3_xgm_intr_enable(adapter, port_id);
t3_gate_rx_traffic(mac, &rx_cfg, &rx_hash_high, &rx_hash_low);
t3_write_reg(adapter, A_XGM_RX_CTRL + mac->offset, 0 );
t3_mac_enable(mac, MAC_DIRECTION_RX);
status = t3_read_reg(adapter, A_XGM_INT_STATUS + mac->offset);
if (status & F_LINKFAULTCHANGE) {
mac->stats.link_faults++;
pi->link_fault = 1 ;
}
t3_open_rx_traffic(mac, rx_cfg, rx_hash_high, rx_hash_low);
}
if (lc->requested_fc & PAUSE_AUTONEG)
fc &= lc->requested_fc;
else
fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
if (link_ok == lc->link_ok && speed == lc->speed &&
duplex == lc->duplex && fc == lc->fc)
return ; /* nothing changed */
if (link_ok != lc->link_ok && adapter->params.rev > 0 &&
uses_xaui(adapter)) {
if (link_ok)
t3b_pcs_reset(mac);
t3_write_reg(adapter, A_XGM_XAUI_ACT_CTRL + mac->offset,
link_ok ? F_TXACTENABLE | F_RXEN : 0 );
}
lc->link_ok = link_ok;
lc->speed = speed < 0 ? SPEED_INVALID : speed;
lc->duplex = duplex < 0 ? DUPLEX_INVALID : duplex;
if (link_ok && speed >= 0 && lc->autoneg == AUTONEG_ENABLE) {
/* Set MAC speed, duplex, and flow control to match PHY. */
t3_mac_set_speed_duplex_fc(mac, speed, duplex, fc);
lc->fc = fc;
}
t3_os_link_changed(adapter, port_id, link_ok && !pi->link_fault,
speed, duplex, fc);
}
void t3_link_fault(struct adapter *adapter, int port_id)
{
struct port_info *pi = adap2pinfo(adapter, port_id);
struct cmac *mac = &pi->mac;
struct cphy *phy = &pi->phy;
struct link_config *lc = &pi->link_config;
int link_ok, speed, duplex, fc, link_fault;
u32 rx_cfg, rx_hash_high, rx_hash_low;
t3_gate_rx_traffic(mac, &rx_cfg, &rx_hash_high, &rx_hash_low);
if (adapter->params.rev > 0 && uses_xaui(adapter))
t3_write_reg(adapter, A_XGM_XAUI_ACT_CTRL + mac->offset, 0 );
t3_write_reg(adapter, A_XGM_RX_CTRL + mac->offset, 0 );
t3_mac_enable(mac, MAC_DIRECTION_RX);
t3_open_rx_traffic(mac, rx_cfg, rx_hash_high, rx_hash_low);
link_fault = t3_read_reg(adapter,
A_XGM_INT_STATUS + mac->offset);
link_fault &= F_LINKFAULTCHANGE;
link_ok = lc->link_ok;
speed = lc->speed;
duplex = lc->duplex;
fc = lc->fc;
phy->ops->get_link_status(phy, &link_ok, &speed, &duplex, &fc);
if (link_fault) {
lc->link_ok = 0 ;
lc->speed = SPEED_INVALID;
lc->duplex = DUPLEX_INVALID;
t3_os_link_fault(adapter, port_id, 0 );
/* Account link faults only when the phy reports a link up */
if (link_ok)
mac->stats.link_faults++;
} else {
if (link_ok)
t3_write_reg(adapter, A_XGM_XAUI_ACT_CTRL + mac->offset,
F_TXACTENABLE | F_RXEN);
pi->link_fault = 0 ;
lc->link_ok = (unsigned char )link_ok;
lc->speed = speed < 0 ? SPEED_INVALID : speed;
lc->duplex = duplex < 0 ? DUPLEX_INVALID : duplex;
t3_os_link_fault(adapter, port_id, link_ok);
}
}
/**
* t3_link_start - apply link configuration to MAC / PHY
* @ phy : the PHY to setup
* @ mac : the MAC to setup
* @ lc : the requested link configuration
*
* Set up a port ' s MAC and PHY according to a desired link configuration .
* - 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 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 t3_link_start(struct cphy *phy, struct cmac *mac, struct link_config *lc)
{
unsigned int fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
lc->link_ok = 0 ;
if (lc->supported & SUPPORTED_Autoneg) {
lc->advertising &= ~(ADVERTISED_Asym_Pause | ADVERTISED_Pause);
if (fc) {
lc->advertising |= ADVERTISED_Asym_Pause;
if (fc & PAUSE_RX)
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;
t3_mac_set_speed_duplex_fc(mac, lc->speed, lc->duplex,
fc);
/* Also disables autoneg */
phy->ops->set_speed_duplex(phy, lc->speed, lc->duplex);
} else
phy->ops->autoneg_enable(phy);
} else {
t3_mac_set_speed_duplex_fc(mac, -1 , -1 , fc);
lc->fc = (unsigned char )fc;
phy->ops->reset(phy, 0 );
}
return 0 ;
}
/**
* t3_set_vlan_accel - control HW VLAN extraction
* @ adapter : the adapter
* @ ports : bitmap of adapter ports to operate on
* @ on : enable ( 1 ) or disable ( 0 ) HW VLAN extraction
*
* Enables or disables HW extraction of VLAN tags for the given port .
*/
void t3_set_vlan_accel(struct adapter *adapter, unsigned int ports, int on)
{
t3_set_reg_field(adapter, A_TP_OUT_CONFIG,
ports << S_VLANEXTRACTIONENABLE,
on ? (ports << S_VLANEXTRACTIONENABLE) : 0 );
}
struct intr_info {
unsigned int mask; /* bits to check in interrupt status */
const char *msg; /* message to print or NULL */
short stat_idx; /* stat counter to increment or -1 */
unsigned short fatal; /* whether the condition reported is fatal */
};
/**
* t3_handle_intr_status - table driven interrupt handler
* @ adapter : the adapter that generated the interrupt
* @ reg : the interrupt status register to process
* @ mask : a mask to apply to the interrupt status
* @ acts : table of interrupt actions
* @ stats : statistics counters tracking interrupt occurrences
*
* A table driven interrupt handler that applies a set of masks to an
* interrupt status word and performs the corresponding actions if the
* interrupts described by the mask have occurred . The actions include
* optionally printing a warning or alert message , and optionally
* incrementing a stat counter . The table is terminated by an entry
* specifying mask 0 . Returns the number of fatal interrupt conditions .
*/
static int t3_handle_intr_status(struct adapter *adapter, unsigned int reg,
unsigned int mask,
const struct intr_info *acts,
unsigned long *stats)
{
int fatal = 0 ;
unsigned int status = t3_read_reg(adapter, reg) & mask;
for (; acts->mask; ++acts) {
if (!(status & acts->mask))
continue ;
if (acts->fatal) {
fatal++;
CH_ALERT(adapter, "%s (0x%x)\n" ,
acts->msg, status & acts->mask);
status &= ~acts->mask;
} else if (acts->msg)
CH_WARN(adapter, "%s (0x%x)\n" ,
acts->msg, status & acts->mask);
if (acts->stat_idx >= 0 )
stats[acts->stat_idx]++;
}
if (status) /* clear processed interrupts */
t3_write_reg(adapter, reg, status);
return fatal;
}
#define SGE_INTR_MASK (F_RSPQDISABLED | \
F_UC_REQ_FRAMINGERROR | F_R_REQ_FRAMINGERROR | \
F_CPPARITYERROR | F_OCPARITYERROR | F_RCPARITYERROR | \
F_IRPARITYERROR | V_ITPARITYERROR(M_ITPARITYERROR) | \
V_FLPARITYERROR(M_FLPARITYERROR) | F_LODRBPARITYERROR | \
F_HIDRBPARITYERROR | F_LORCQPARITYERROR | \
F_HIRCQPARITYERROR | F_LOPRIORITYDBFULL | \
F_HIPRIORITYDBFULL | F_LOPRIORITYDBEMPTY | \
F_HIPRIORITYDBEMPTY | F_HIPIODRBDROPERR | \
F_LOPIODRBDROPERR)
#define MC5_INTR_MASK (F_PARITYERR | F_ACTRGNFULL | F_UNKNOWNCMD | \
F_REQQPARERR | F_DISPQPARERR | F_DELACTEMPTY | \
F_NFASRCHFAIL)
#define MC7_INTR_MASK (F_AE | F_UE | F_CE | V_PE(M_PE))
#define XGM_INTR_MASK (V_TXFIFO_PRTY_ERR(M_TXFIFO_PRTY_ERR) | \
V_RXFIFO_PRTY_ERR(M_RXFIFO_PRTY_ERR) | \
F_TXFIFO_UNDERRUN)
#define PCIX_INTR_MASK (F_MSTDETPARERR | F_SIGTARABT | F_RCVTARABT | \
F_RCVMSTABT | F_SIGSYSERR | F_DETPARERR | \
F_SPLCMPDIS | F_UNXSPLCMP | F_RCVSPLCMPERR | \
F_DETCORECCERR | F_DETUNCECCERR | F_PIOPARERR | \
V_WFPARERR(M_WFPARERR) | V_RFPARERR(M_RFPARERR) | \
V_CFPARERR(M_CFPARERR) /* | V_MSIXPARERR(M_MSIXPARERR) */)
#define PCIE_INTR_MASK (F_UNXSPLCPLERRR | F_UNXSPLCPLERRC | F_PCIE_PIOPARERR |\
F_PCIE_WFPARERR | F_PCIE_RFPARERR | F_PCIE_CFPARERR | \
/* V_PCIE_MSIXPARERR(M_PCIE_MSIXPARERR) | */ \
F_RETRYBUFPARERR | F_RETRYLUTPARERR | F_RXPARERR | \
F_TXPARERR | V_BISTERR(M_BISTERR))
#define ULPRX_INTR_MASK (F_PARERRDATA | F_PARERRPCMD | F_ARBPF1PERR | \
F_ARBPF0PERR | F_ARBFPERR | F_PCMDMUXPERR | \
F_DATASELFRAMEERR1 | F_DATASELFRAMEERR0)
#define ULPTX_INTR_MASK 0 xfc
#define CPLSW_INTR_MASK (F_CIM_OP_MAP_PERR | F_TP_FRAMING_ERROR | \
F_SGE_FRAMING_ERROR | F_CIM_FRAMING_ERROR | \
F_ZERO_SWITCH_ERROR)
#define CIM_INTR_MASK (F_BLKWRPLINT | F_BLKRDPLINT | F_BLKWRCTLINT | \
F_BLKRDCTLINT | F_BLKWRFLASHINT | F_BLKRDFLASHINT | \
F_SGLWRFLASHINT | F_WRBLKFLASHINT | F_BLKWRBOOTINT | \
F_FLASHRANGEINT | F_SDRAMRANGEINT | F_RSVDSPACEINT | \
F_DRAMPARERR | F_ICACHEPARERR | F_DCACHEPARERR | \
F_OBQSGEPARERR | F_OBQULPHIPARERR | F_OBQULPLOPARERR | \
F_IBQSGELOPARERR | F_IBQSGEHIPARERR | F_IBQULPPARERR | \
F_IBQTPPARERR | F_ITAGPARERR | F_DTAGPARERR)
#define PMTX_INTR_MASK (F_ZERO_C_CMD_ERROR | ICSPI_FRM_ERR | OESPI_FRM_ERR | \
V_ICSPI_PAR_ERROR(M_ICSPI_PAR_ERROR) | \
V_OESPI_PAR_ERROR(M_OESPI_PAR_ERROR))
#define PMRX_INTR_MASK (F_ZERO_E_CMD_ERROR | IESPI_FRM_ERR | OCSPI_FRM_ERR | \
V_IESPI_PAR_ERROR(M_IESPI_PAR_ERROR) | \
V_OCSPI_PAR_ERROR(M_OCSPI_PAR_ERROR))
#define MPS_INTR_MASK (V_TX0TPPARERRENB(M_TX0TPPARERRENB) | \
V_TX1TPPARERRENB(M_TX1TPPARERRENB) | \
V_RXTPPARERRENB(M_RXTPPARERRENB) | \
V_MCAPARERRENB(M_MCAPARERRENB))
#define XGM_EXTRA_INTR_MASK (F_LINKFAULTCHANGE)
#define PL_INTR_MASK (F_T3DBG | F_XGMAC0_0 | F_XGMAC0_1 | F_MC5A | F_PM1_TX | \
F_PM1_RX | F_ULP2_TX | F_ULP2_RX | F_TP1 | F_CIM | \
F_MC7_CM | F_MC7_PMTX | F_MC7_PMRX | F_SGE3 | F_PCIM0 | \
F_MPS0 | F_CPL_SWITCH)
/*
* Interrupt handler for the PCIX1 module .
*/
static void pci_intr_handler(struct adapter *adapter)
{
static const struct intr_info pcix1_intr_info[] = {
{F_MSTDETPARERR, "PCI master detected parity error" , -1 , 1 },
{F_SIGTARABT, "PCI signaled target abort" , -1 , 1 },
{F_RCVTARABT, "PCI received target abort" , -1 , 1 },
{F_RCVMSTABT, "PCI received master abort" , -1 , 1 },
{F_SIGSYSERR, "PCI signaled system error" , -1 , 1 },
{F_DETPARERR, "PCI detected parity error" , -1 , 1 },
{F_SPLCMPDIS, "PCI split completion discarded" , -1 , 1 },
{F_UNXSPLCMP, "PCI unexpected split completion error" , -1 , 1 },
{F_RCVSPLCMPERR, "PCI received split completion error" , -1 ,
1 },
{F_DETCORECCERR, "PCI correctable ECC error" ,
STAT_PCI_CORR_ECC, 0 },
{F_DETUNCECCERR, "PCI uncorrectable ECC error" , -1 , 1 },
{F_PIOPARERR, "PCI PIO FIFO parity error" , -1 , 1 },
{V_WFPARERR(M_WFPARERR), "PCI write FIFO parity error" , -1 ,
1 },
{V_RFPARERR(M_RFPARERR), "PCI read FIFO parity error" , -1 ,
1 },
{V_CFPARERR(M_CFPARERR), "PCI command FIFO parity error" , -1 ,
1 },
{V_MSIXPARERR(M_MSIXPARERR), "PCI MSI-X table/PBA parity "
"error" , -1 , 1 },
{0 }
};
if (t3_handle_intr_status(adapter, A_PCIX_INT_CAUSE, PCIX_INTR_MASK,
pcix1_intr_info, adapter->irq_stats))
t3_fatal_err(adapter);
}
/*
* Interrupt handler for the PCIE module .
*/
static void pcie_intr_handler(struct adapter *adapter)
{
static const struct intr_info pcie_intr_info[] = {
{F_PEXERR, "PCI PEX error" , -1 , 1 },
{F_UNXSPLCPLERRR,
"PCI unexpected split completion DMA read error" , -1 , 1 },
{F_UNXSPLCPLERRC,
"PCI unexpected split completion DMA command error" , -1 , 1 },
{F_PCIE_PIOPARERR, "PCI PIO FIFO parity error" , -1 , 1 },
{F_PCIE_WFPARERR, "PCI write FIFO parity error" , -1 , 1 },
{F_PCIE_RFPARERR, "PCI read FIFO parity error" , -1 , 1 },
{F_PCIE_CFPARERR, "PCI command FIFO parity error" , -1 , 1 },
{V_PCIE_MSIXPARERR(M_PCIE_MSIXPARERR),
"PCI MSI-X table/PBA parity error" , -1 , 1 },
{F_RETRYBUFPARERR, "PCI retry buffer parity error" , -1 , 1 },
{F_RETRYLUTPARERR, "PCI retry LUT parity error" , -1 , 1 },
{F_RXPARERR, "PCI Rx parity error" , -1 , 1 },
{F_TXPARERR, "PCI Tx parity error" , -1 , 1 },
{V_BISTERR(M_BISTERR), "PCI BIST error" , -1 , 1 },
{0 }
};
if (t3_read_reg(adapter, A_PCIE_INT_CAUSE) & F_PEXERR)
CH_ALERT(adapter, "PEX error code 0x%x\n" ,
t3_read_reg(adapter, A_PCIE_PEX_ERR));
if (t3_handle_intr_status(adapter, A_PCIE_INT_CAUSE, PCIE_INTR_MASK,
pcie_intr_info, adapter->irq_stats))
t3_fatal_err(adapter);
}
/*
* TP interrupt handler .
*/
static void tp_intr_handler(struct adapter *adapter)
{
static const struct intr_info tp_intr_info[] = {
{0 xffffff, "TP parity error" , -1 , 1 },
{0 x1000000, "TP out of Rx pages" , -1 , 1 },
{0 x2000000, "TP out of Tx pages" , -1 , 1 },
{0 }
};
static const struct intr_info tp_intr_info_t3c[] = {
{0 x1fffffff, "TP parity error" , -1 , 1 },
{F_FLMRXFLSTEMPTY, "TP out of Rx pages" , -1 , 1 },
{F_FLMTXFLSTEMPTY, "TP out of Tx pages" , -1 , 1 },
{0 }
};
if (t3_handle_intr_status(adapter, A_TP_INT_CAUSE, 0 xffffffff,
adapter->params.rev < T3_REV_C ?
tp_intr_info : tp_intr_info_t3c, NULL))
t3_fatal_err(adapter);
}
/*
* CIM interrupt handler .
*/
static void cim_intr_handler(struct adapter *adapter)
{
static const struct intr_info cim_intr_info[] = {
{F_RSVDSPACEINT, "CIM reserved space write" , -1 , 1 },
{F_SDRAMRANGEINT, "CIM SDRAM address out of range" , -1 , 1 },
{F_FLASHRANGEINT, "CIM flash address out of range" , -1 , 1 },
{F_BLKWRBOOTINT, "CIM block write to boot space" , -1 , 1 },
{F_WRBLKFLASHINT, "CIM write to cached flash space" , -1 , 1 },
{F_SGLWRFLASHINT, "CIM single write to flash space" , -1 , 1 },
{F_BLKRDFLASHINT, "CIM block read from flash space" , -1 , 1 },
{F_BLKWRFLASHINT, "CIM block write to flash space" , -1 , 1 },
{F_BLKRDCTLINT, "CIM block read from CTL space" , -1 , 1 },
{F_BLKWRCTLINT, "CIM block write to CTL space" , -1 , 1 },
{F_BLKRDPLINT, "CIM block read from PL space" , -1 , 1 },
{F_BLKWRPLINT, "CIM block write to PL space" , -1 , 1 },
{F_DRAMPARERR, "CIM DRAM parity error" , -1 , 1 },
{F_ICACHEPARERR, "CIM icache parity error" , -1 , 1 },
{F_DCACHEPARERR, "CIM dcache parity error" , -1 , 1 },
{F_OBQSGEPARERR, "CIM OBQ SGE parity error" , -1 , 1 },
{F_OBQULPHIPARERR, "CIM OBQ ULPHI parity error" , -1 , 1 },
{F_OBQULPLOPARERR, "CIM OBQ ULPLO parity error" , -1 , 1 },
{F_IBQSGELOPARERR, "CIM IBQ SGELO parity error" , -1 , 1 },
{F_IBQSGEHIPARERR, "CIM IBQ SGEHI parity error" , -1 , 1 },
{F_IBQULPPARERR, "CIM IBQ ULP parity error" , -1 , 1 },
{F_IBQTPPARERR, "CIM IBQ TP parity error" , -1 , 1 },
{F_ITAGPARERR, "CIM itag parity error" , -1 , 1 },
{F_DTAGPARERR, "CIM dtag parity error" , -1 , 1 },
{0 }
};
if (t3_handle_intr_status(adapter, A_CIM_HOST_INT_CAUSE, 0 xffffffff,
cim_intr_info, NULL))
t3_fatal_err(adapter);
}
/*
* ULP RX interrupt handler .
*/
static void ulprx_intr_handler(struct adapter *adapter)
{
static const struct intr_info ulprx_intr_info[] = {
{F_PARERRDATA, "ULP RX data parity error" , -1 , 1 },
{F_PARERRPCMD, "ULP RX command parity error" , -1 , 1 },
{F_ARBPF1PERR, "ULP RX ArbPF1 parity error" , -1 , 1 },
{F_ARBPF0PERR, "ULP RX ArbPF0 parity error" , -1 , 1 },
{F_ARBFPERR, "ULP RX ArbF parity error" , -1 , 1 },
{F_PCMDMUXPERR, "ULP RX PCMDMUX parity error" , -1 , 1 },
{F_DATASELFRAMEERR1, "ULP RX frame error" , -1 , 1 },
{F_DATASELFRAMEERR0, "ULP RX frame error" , -1 , 1 },
{0 }
};
if (t3_handle_intr_status(adapter, A_ULPRX_INT_CAUSE, 0 xffffffff,
ulprx_intr_info, NULL))
t3_fatal_err(adapter);
}
/*
* ULP TX interrupt handler .
*/
static void ulptx_intr_handler(struct adapter *adapter)
{
static const struct intr_info ulptx_intr_info[] = {
{F_PBL_BOUND_ERR_CH0, "ULP TX channel 0 PBL out of bounds" ,
STAT_ULP_CH0_PBL_OOB, 0 },
{F_PBL_BOUND_ERR_CH1, "ULP TX channel 1 PBL out of bounds" ,
STAT_ULP_CH1_PBL_OOB, 0 },
{0 xfc, "ULP TX parity error" , -1 , 1 },
{0 }
};
if (t3_handle_intr_status(adapter, A_ULPTX_INT_CAUSE, 0 xffffffff,
ulptx_intr_info, adapter->irq_stats))
t3_fatal_err(adapter);
}
#define ICSPI_FRM_ERR (F_ICSPI0_FIFO2X_RX_FRAMING_ERROR | \
F_ICSPI1_FIFO2X_RX_FRAMING_ERROR | F_ICSPI0_RX_FRAMING_ERROR | \
F_ICSPI1_RX_FRAMING_ERROR | F_ICSPI0_TX_FRAMING_ERROR | \
F_ICSPI1_TX_FRAMING_ERROR)
#define OESPI_FRM_ERR (F_OESPI0_RX_FRAMING_ERROR | \
F_OESPI1_RX_FRAMING_ERROR | F_OESPI0_TX_FRAMING_ERROR | \
F_OESPI1_TX_FRAMING_ERROR | F_OESPI0_OFIFO2X_TX_FRAMING_ERROR | \
F_OESPI1_OFIFO2X_TX_FRAMING_ERROR)
/*
* PM TX interrupt handler .
*/
static void pmtx_intr_handler(struct adapter *adapter)
{
static const struct intr_info pmtx_intr_info[] = {
{F_ZERO_C_CMD_ERROR, "PMTX 0-length pcmd" , -1 , 1 },
{ICSPI_FRM_ERR, "PMTX ispi framing error" , -1 , 1 },
{OESPI_FRM_ERR, "PMTX ospi framing error" , -1 , 1 },
{V_ICSPI_PAR_ERROR(M_ICSPI_PAR_ERROR),
"PMTX ispi parity error" , -1 , 1 },
{V_OESPI_PAR_ERROR(M_OESPI_PAR_ERROR),
"PMTX ospi parity error" , -1 , 1 },
{0 }
};
if (t3_handle_intr_status(adapter, A_PM1_TX_INT_CAUSE, 0 xffffffff,
pmtx_intr_info, NULL))
t3_fatal_err(adapter);
}
#define IESPI_FRM_ERR (F_IESPI0_FIFO2X_RX_FRAMING_ERROR | \
F_IESPI1_FIFO2X_RX_FRAMING_ERROR | F_IESPI0_RX_FRAMING_ERROR | \
F_IESPI1_RX_FRAMING_ERROR | F_IESPI0_TX_FRAMING_ERROR | \
F_IESPI1_TX_FRAMING_ERROR)
#define OCSPI_FRM_ERR (F_OCSPI0_RX_FRAMING_ERROR | \
F_OCSPI1_RX_FRAMING_ERROR | F_OCSPI0_TX_FRAMING_ERROR | \
F_OCSPI1_TX_FRAMING_ERROR | F_OCSPI0_OFIFO2X_TX_FRAMING_ERROR | \
F_OCSPI1_OFIFO2X_TX_FRAMING_ERROR)
/*
* PM RX interrupt handler .
*/
static void pmrx_intr_handler(struct adapter *adapter)
{
static const struct intr_info pmrx_intr_info[] = {
{F_ZERO_E_CMD_ERROR, "PMRX 0-length pcmd" , -1 , 1 },
{IESPI_FRM_ERR, "PMRX ispi framing error" , -1 , 1 },
{OCSPI_FRM_ERR, "PMRX ospi framing error" , -1 , 1 },
{V_IESPI_PAR_ERROR(M_IESPI_PAR_ERROR),
"PMRX ispi parity error" , -1 , 1 },
{V_OCSPI_PAR_ERROR(M_OCSPI_PAR_ERROR),
"PMRX ospi parity error" , -1 , 1 },
{0 }
};
if (t3_handle_intr_status(adapter, A_PM1_RX_INT_CAUSE, 0 xffffffff,
pmrx_intr_info, NULL))
t3_fatal_err(adapter);
}
/*
* CPL switch interrupt handler .
*/
static void cplsw_intr_handler(struct adapter *adapter)
{
static const struct intr_info cplsw_intr_info[] = {
{F_CIM_OP_MAP_PERR, "CPL switch CIM parity error" , -1 , 1 },
{F_CIM_OVFL_ERROR, "CPL switch CIM overflow" , -1 , 1 },
{F_TP_FRAMING_ERROR, "CPL switch TP framing error" , -1 , 1 },
{F_SGE_FRAMING_ERROR, "CPL switch SGE framing error" , -1 , 1 },
{F_CIM_FRAMING_ERROR, "CPL switch CIM framing error" , -1 , 1 },
{F_ZERO_SWITCH_ERROR, "CPL switch no-switch error" , -1 , 1 },
{0 }
};
if (t3_handle_intr_status(adapter, A_CPL_INTR_CAUSE, 0 xffffffff,
cplsw_intr_info, NULL))
t3_fatal_err(adapter);
}
/*
* MPS interrupt handler .
*/
static void mps_intr_handler(struct adapter *adapter)
{
static const struct intr_info mps_intr_info[] = {
{0 x1ff, "MPS parity error" , -1 , 1 },
{0 }
};
if (t3_handle_intr_status(adapter, A_MPS_INT_CAUSE, 0 xffffffff,
mps_intr_info, NULL))
t3_fatal_err(adapter);
}
#define MC7_INTR_FATAL (F_UE | V_PE(M_PE) | F_AE)
/*
* MC7 interrupt handler .
*/
static void mc7_intr_handler(struct mc7 *mc7)
{
struct adapter *adapter = mc7->adapter;
u32 cause = t3_read_reg(adapter, mc7->offset + A_MC7_INT_CAUSE);
if (cause & F_CE) {
mc7->stats.corr_err++;
CH_WARN(adapter, "%s MC7 correctable error at addr 0x%x, "
"data 0x%x 0x%x 0x%x\n" , mc7->name,
t3_read_reg(adapter, mc7->offset + A_MC7_CE_ADDR),
t3_read_reg(adapter, mc7->offset + A_MC7_CE_DATA0),
t3_read_reg(adapter, mc7->offset + A_MC7_CE_DATA1),
t3_read_reg(adapter, mc7->offset + A_MC7_CE_DATA2));
}
if (cause & F_UE) {
mc7->stats.uncorr_err++;
CH_ALERT(adapter, "%s MC7 uncorrectable error at addr 0x%x, "
"data 0x%x 0x%x 0x%x\n" , mc7->name,
t3_read_reg(adapter, mc7->offset + A_MC7_UE_ADDR),
t3_read_reg(adapter, mc7->offset + A_MC7_UE_DATA0),
t3_read_reg(adapter, mc7->offset + A_MC7_UE_DATA1),
t3_read_reg(adapter, mc7->offset + A_MC7_UE_DATA2));
}
if (G_PE(cause)) {
mc7->stats.parity_err++;
CH_ALERT(adapter, "%s MC7 parity error 0x%x\n" ,
mc7->name, G_PE(cause));
}
if (cause & F_AE) {
u32 addr = 0 ;
if (adapter->params.rev > 0 )
addr = t3_read_reg(adapter,
mc7->offset + A_MC7_ERR_ADDR);
mc7->stats.addr_err++;
CH_ALERT(adapter, "%s MC7 address error: 0x%x\n" ,
mc7->name, addr);
}
if (cause & MC7_INTR_FATAL)
t3_fatal_err(adapter);
t3_write_reg(adapter, mc7->offset + A_MC7_INT_CAUSE, cause);
}
#define XGM_INTR_FATAL (V_TXFIFO_PRTY_ERR(M_TXFIFO_PRTY_ERR) | \
V_RXFIFO_PRTY_ERR(M_RXFIFO_PRTY_ERR))
/*
* XGMAC interrupt handler .
*/
static int mac_intr_handler(struct adapter *adap, unsigned int idx)
{
struct cmac *mac = &adap2pinfo(adap, idx)->mac;
/*
* We mask out interrupt causes for which we ' re not taking interrupts .
* This allows us to use polling logic to monitor some of the other
* conditions when taking interrupts would impose too much load on the
* system .
*/
u32 cause = t3_read_reg(adap, A_XGM_INT_CAUSE + mac->offset) &
~F_RXFIFO_OVERFLOW;
if (cause & V_TXFIFO_PRTY_ERR(M_TXFIFO_PRTY_ERR)) {
mac->stats.tx_fifo_parity_err++;
CH_ALERT(adap, "port%d: MAC TX FIFO parity error\n" , idx);
}
if (cause & V_RXFIFO_PRTY_ERR(M_RXFIFO_PRTY_ERR)) {
mac->stats.rx_fifo_parity_err++;
CH_ALERT(adap, "port%d: MAC RX FIFO parity error\n" , idx);
}
if (cause & F_TXFIFO_UNDERRUN)
mac->stats.tx_fifo_urun++;
if (cause & F_RXFIFO_OVERFLOW)
mac->stats.rx_fifo_ovfl++;
if (cause & V_SERDES_LOS(M_SERDES_LOS))
mac->stats.serdes_signal_loss++;
if (cause & F_XAUIPCSCTCERR)
mac->stats.xaui_pcs_ctc_err++;
if (cause & F_XAUIPCSALIGNCHANGE)
mac->stats.xaui_pcs_align_change++;
if (cause & F_XGM_INT) {
t3_set_reg_field(adap,
A_XGM_INT_ENABLE + mac->offset,
F_XGM_INT, 0 );
mac->stats.link_faults++;
t3_os_link_fault_handler(adap, idx);
}
if (cause & XGM_INTR_FATAL)
t3_fatal_err(adap);
t3_write_reg(adap, A_XGM_INT_CAUSE + mac->offset, cause);
return cause != 0 ;
}
/*
* Interrupt handler for PHY events .
*/
int t3_phy_intr_handler(struct adapter *adapter)
{
u32 i, cause = t3_read_reg(adapter, A_T3DBG_INT_CAUSE);
for_each_port(adapter, i) {
struct port_info *p = adap2pinfo(adapter, i);
if (!(p->phy.caps & SUPPORTED_IRQ))
continue ;
if (cause & (1 << adapter_info(adapter)->gpio_intr[i])) {
int phy_cause = p->phy.ops->intr_handler(&p->phy);
if (phy_cause & cphy_cause_link_change)
t3_link_changed(adapter, i);
if (phy_cause & cphy_cause_fifo_error)
p->phy.fifo_errors++;
if (phy_cause & cphy_cause_module_change)
t3_os_phymod_changed(adapter, i);
}
}
t3_write_reg(adapter, A_T3DBG_INT_CAUSE, cause);
return 0 ;
}
/*
* T3 slow path ( non - data ) interrupt handler .
*/
int t3_slow_intr_handler(struct adapter *adapter)
{
u32 cause = t3_read_reg(adapter, A_PL_INT_CAUSE0);
cause &= adapter->slow_intr_mask;
if (!cause)
return 0 ;
if (cause & F_PCIM0) {
if (is_pcie(adapter))
pcie_intr_handler(adapter);
else
pci_intr_handler(adapter);
}
if (cause & F_SGE3)
t3_sge_err_intr_handler(adapter);
if (cause & F_MC7_PMRX)
mc7_intr_handler(&adapter->pmrx);
if (cause & F_MC7_PMTX)
mc7_intr_handler(&adapter->pmtx);
if (cause & F_MC7_CM)
mc7_intr_handler(&adapter->cm);
if (cause & F_CIM)
cim_intr_handler(adapter);
if (cause & F_TP1)
tp_intr_handler(adapter);
if (cause & F_ULP2_RX)
ulprx_intr_handler(adapter);
if (cause & F_ULP2_TX)
ulptx_intr_handler(adapter);
if (cause & F_PM1_RX)
pmrx_intr_handler(adapter);
if (cause & F_PM1_TX)
pmtx_intr_handler(adapter);
if (cause & F_CPL_SWITCH)
cplsw_intr_handler(adapter);
if (cause & F_MPS0)
mps_intr_handler(adapter);
if (cause & F_MC5A)
t3_mc5_intr_handler(&adapter->mc5);
if (cause & F_XGMAC0_0)
mac_intr_handler(adapter, 0 );
if (cause & F_XGMAC0_1)
mac_intr_handler(adapter, 1 );
if (cause & F_T3DBG)
t3_os_ext_intr_handler(adapter);
/* Clear the interrupts just processed. */
t3_write_reg(adapter, A_PL_INT_CAUSE0, cause);
t3_read_reg(adapter, A_PL_INT_CAUSE0); /* flush */
return 1 ;
}
static unsigned int calc_gpio_intr(struct adapter *adap)
{
unsigned int i, gpi_intr = 0 ;
for_each_port(adap, i)
if ((adap2pinfo(adap, i)->phy.caps & SUPPORTED_IRQ) &&
adapter_info(adap)->gpio_intr[i])
gpi_intr |= 1 << adapter_info(adap)->gpio_intr[i];
return gpi_intr;
}
/**
* t3_intr_enable - enable interrupts
* @ adapter : the adapter whose interrupts should be enabled
*
* Enable interrupts by setting the interrupt enable registers of the
* various HW modules and then enabling the top - level interrupt
* concentrator .
*/
void t3_intr_enable(struct adapter *adapter)
{
static const struct addr_val_pair intr_en_avp[] = {
{A_SG_INT_ENABLE, SGE_INTR_MASK},
{A_MC7_INT_ENABLE, MC7_INTR_MASK},
{A_MC7_INT_ENABLE - MC7_PMRX_BASE_ADDR + MC7_PMTX_BASE_ADDR,
MC7_INTR_MASK},
{A_MC7_INT_ENABLE - MC7_PMRX_BASE_ADDR + MC7_CM_BASE_ADDR,
MC7_INTR_MASK},
{A_MC5_DB_INT_ENABLE, MC5_INTR_MASK},
{A_ULPRX_INT_ENABLE, ULPRX_INTR_MASK},
{A_PM1_TX_INT_ENABLE, PMTX_INTR_MASK},
{A_PM1_RX_INT_ENABLE, PMRX_INTR_MASK},
{A_CIM_HOST_INT_ENABLE, CIM_INTR_MASK},
{A_MPS_INT_ENABLE, MPS_INTR_MASK},
};
adapter->slow_intr_mask = PL_INTR_MASK;
t3_write_regs(adapter, intr_en_avp, ARRAY_SIZE(intr_en_avp), 0 );
t3_write_reg(adapter, A_TP_INT_ENABLE,
adapter->params.rev >= T3_REV_C ? 0 x2bfffff : 0 x3bfffff);
if (adapter->params.rev > 0 ) {
t3_write_reg(adapter, A_CPL_INTR_ENABLE,
CPLSW_INTR_MASK | F_CIM_OVFL_ERROR);
t3_write_reg(adapter, A_ULPTX_INT_ENABLE,
ULPTX_INTR_MASK | F_PBL_BOUND_ERR_CH0 |
F_PBL_BOUND_ERR_CH1);
} else {
t3_write_reg(adapter, A_CPL_INTR_ENABLE, CPLSW_INTR_MASK);
t3_write_reg(adapter, A_ULPTX_INT_ENABLE, ULPTX_INTR_MASK);
}
t3_write_reg(adapter, A_T3DBG_INT_ENABLE, calc_gpio_intr(adapter));
if (is_pcie(adapter))
t3_write_reg(adapter, A_PCIE_INT_ENABLE, PCIE_INTR_MASK);
else
t3_write_reg(adapter, A_PCIX_INT_ENABLE, PCIX_INTR_MASK);
t3_write_reg(adapter, A_PL_INT_ENABLE0, adapter->slow_intr_mask);
t3_read_reg(adapter, A_PL_INT_ENABLE0); /* flush */
}
/**
* t3_intr_disable - disable a card ' s interrupts
* @ adapter : the adapter whose interrupts should be disabled
*
* Disable interrupts . We only disable the top - level interrupt
* concentrator and the SGE data interrupts .
*/
void t3_intr_disable(struct adapter *adapter)
{
t3_write_reg(adapter, A_PL_INT_ENABLE0, 0 );
t3_read_reg(adapter, A_PL_INT_ENABLE0); /* flush */
adapter->slow_intr_mask = 0 ;
}
/**
* t3_intr_clear - clear all interrupts
* @ adapter : the adapter whose interrupts should be cleared
*
* Clears all interrupts .
*/
void t3_intr_clear(struct adapter *adapter)
{
static const unsigned int cause_reg_addr[] = {
A_SG_INT_CAUSE,
A_SG_RSPQ_FL_STATUS,
A_PCIX_INT_CAUSE,
A_MC7_INT_CAUSE,
A_MC7_INT_CAUSE - MC7_PMRX_BASE_ADDR + MC7_PMTX_BASE_ADDR,
A_MC7_INT_CAUSE - MC7_PMRX_BASE_ADDR + MC7_CM_BASE_ADDR,
A_CIM_HOST_INT_CAUSE,
A_TP_INT_CAUSE,
A_MC5_DB_INT_CAUSE,
A_ULPRX_INT_CAUSE,
A_ULPTX_INT_CAUSE,
A_CPL_INTR_CAUSE,
A_PM1_TX_INT_CAUSE,
A_PM1_RX_INT_CAUSE,
A_MPS_INT_CAUSE,
A_T3DBG_INT_CAUSE,
};
unsigned int i;
/* Clear PHY and MAC interrupts for each port. */
for_each_port(adapter, i)
t3_port_intr_clear(adapter, i);
for (i = 0 ; i < ARRAY_SIZE(cause_reg_addr); ++i)
t3_write_reg(adapter, cause_reg_addr[i], 0 xffffffff);
if (is_pcie(adapter))
t3_write_reg(adapter, A_PCIE_PEX_ERR, 0 xffffffff);
t3_write_reg(adapter, A_PL_INT_CAUSE0, 0 xffffffff);
t3_read_reg(adapter, A_PL_INT_CAUSE0); /* flush */
}
void t3_xgm_intr_enable(struct adapter *adapter, int idx)
{
struct port_info *pi = adap2pinfo(adapter, idx);
t3_write_reg(adapter, A_XGM_XGM_INT_ENABLE + pi->mac.offset,
XGM_EXTRA_INTR_MASK);
}
void t3_xgm_intr_disable(struct adapter *adapter, int idx)
{
struct port_info *pi = adap2pinfo(adapter, idx);
t3_write_reg(adapter, A_XGM_XGM_INT_DISABLE + pi->mac.offset,
0 x7ff);
}
/**
* t3_port_intr_enable - enable port - specific interrupts
* @ adapter : associated adapter
* @ idx : index of port whose interrupts should be enabled
*
* Enable port - specific ( i . e . , MAC and PHY ) interrupts for the given
* adapter port .
*/
void t3_port_intr_enable(struct adapter *adapter, int idx)
{
struct cphy *phy = &adap2pinfo(adapter, idx)->phy;
t3_write_reg(adapter, XGM_REG(A_XGM_INT_ENABLE, idx), XGM_INTR_MASK);
t3_read_reg(adapter, XGM_REG(A_XGM_INT_ENABLE, idx)); /* flush */
phy->ops->intr_enable(phy);
}
/**
* t3_port_intr_disable - disable port - specific interrupts
* @ adapter : associated adapter
* @ idx : index of port whose interrupts should be disabled
*
* Disable port - specific ( i . e . , MAC and PHY ) interrupts for the given
* adapter port .
*/
void t3_port_intr_disable(struct adapter *adapter, int idx)
{
struct cphy *phy = &adap2pinfo(adapter, idx)->phy;
t3_write_reg(adapter, XGM_REG(A_XGM_INT_ENABLE, idx), 0 );
t3_read_reg(adapter, XGM_REG(A_XGM_INT_ENABLE, idx)); /* flush */
phy->ops->intr_disable(phy);
}
/**
* t3_port_intr_clear - clear port - specific interrupts
* @ adapter : associated adapter
* @ idx : index of port whose interrupts to clear
*
* Clear port - specific ( i . e . , MAC and PHY ) interrupts for the given
* adapter port .
*/
static void t3_port_intr_clear(struct adapter *adapter, int idx)
{
struct cphy *phy = &adap2pinfo(adapter, idx)->phy;
t3_write_reg(adapter, XGM_REG(A_XGM_INT_CAUSE, idx), 0 xffffffff);
t3_read_reg(adapter, XGM_REG(A_XGM_INT_CAUSE, idx)); /* flush */
phy->ops->intr_clear(phy);
}
#define SG_CONTEXT_CMD_ATTEMPTS 100
/**
* t3_sge_write_context - write an SGE context
* @ adapter : the adapter
* @ id : the context id
* @ type : the context type
*
* Program an SGE context with the values already loaded in the
* CONTEXT_DATA ? registers .
*/
static int t3_sge_write_context(struct adapter *adapter, unsigned int id,
unsigned int type)
{
if (type == F_RESPONSEQ) {
/*
* Can ' t write the Response Queue Context bits for
* Interrupt Armed or the Reserve bits after the chip
* has been initialized out of reset . Writing to these
* bits can confuse the hardware .
*/
t3_write_reg(adapter, A_SG_CONTEXT_MASK0, 0 xffffffff);
t3_write_reg(adapter, A_SG_CONTEXT_MASK1, 0 xffffffff);
t3_write_reg(adapter, A_SG_CONTEXT_MASK2, 0 x17ffffff);
t3_write_reg(adapter, A_SG_CONTEXT_MASK3, 0 xffffffff);
} else {
t3_write_reg(adapter, A_SG_CONTEXT_MASK0, 0 xffffffff);
t3_write_reg(adapter, A_SG_CONTEXT_MASK1, 0 xffffffff);
t3_write_reg(adapter, A_SG_CONTEXT_MASK2, 0 xffffffff);
t3_write_reg(adapter, A_SG_CONTEXT_MASK3, 0 xffffffff);
}
t3_write_reg(adapter, A_SG_CONTEXT_CMD,
V_CONTEXT_CMD_OPCODE(1 ) | type | V_CONTEXT(id));
return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
0 , SG_CONTEXT_CMD_ATTEMPTS, 1 );
}
/**
* clear_sge_ctxt - completely clear an SGE context
* @ adap : the adapter
* @ id : the context id
* @ type : the context type
*
* Completely clear an SGE context . Used predominantly at post - reset
* initialization . Note in particular that we don ' t skip writing to any
* " sensitive bits " in the contexts the way that t3_sge_write_context ( )
* does . . .
*/
static int clear_sge_ctxt(struct adapter *adap, unsigned int id,
unsigned int type)
{
t3_write_reg(adap, A_SG_CONTEXT_DATA0, 0 );
t3_write_reg(adap, A_SG_CONTEXT_DATA1, 0 );
t3_write_reg(adap, A_SG_CONTEXT_DATA2, 0 );
t3_write_reg(adap, A_SG_CONTEXT_DATA3, 0 );
t3_write_reg(adap, A_SG_CONTEXT_MASK0, 0 xffffffff);
t3_write_reg(adap, A_SG_CONTEXT_MASK1, 0 xffffffff);
t3_write_reg(adap, A_SG_CONTEXT_MASK2, 0 xffffffff);
t3_write_reg(adap, A_SG_CONTEXT_MASK3, 0 xffffffff);
t3_write_reg(adap, A_SG_CONTEXT_CMD,
V_CONTEXT_CMD_OPCODE(1 ) | type | V_CONTEXT(id));
return t3_wait_op_done(adap, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
0 , SG_CONTEXT_CMD_ATTEMPTS, 1 );
}
/**
* t3_sge_init_ecntxt - initialize an SGE egress context
* @ adapter : the adapter to configure
* @ id : the context id
* @ gts_enable : whether to enable GTS for the context
* @ type : the egress context type
* @ respq : associated response queue
* @ base_addr : base address of queue
* @ size : number of queue entries
* @ token : uP token
* @ gen : initial generation value for the context
* @ cidx : consumer pointer
*
* Initialize an SGE egress context and make it ready for use . If the
* platform allows concurrent context operations , the caller is
* responsible for appropriate locking .
*/
int t3_sge_init_ecntxt(struct adapter *adapter, unsigned int id, int gts_enable,
enum sge_context_type type, int respq, u64 base_addr,
unsigned int size, unsigned int token, int gen,
unsigned int cidx)
{
unsigned int credits = type == SGE_CNTXT_OFLD ? 0 : FW_WR_NUM;
if (base_addr & 0 xfff) /* must be 4K aligned */
return -EINVAL;
if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
return -EBUSY;
base_addr >>= 12 ;
t3_write_reg(adapter, A_SG_CONTEXT_DATA0, V_EC_INDEX(cidx) |
V_EC_CREDITS(credits) | V_EC_GTS(gts_enable));
t3_write_reg(adapter, A_SG_CONTEXT_DATA1, V_EC_SIZE(size) |
V_EC_BASE_LO(base_addr & 0 xffff));
base_addr >>= 16 ;
t3_write_reg(adapter, A_SG_CONTEXT_DATA2, base_addr);
base_addr >>= 32 ;
t3_write_reg(adapter, A_SG_CONTEXT_DATA3,
V_EC_BASE_HI(base_addr & 0 xf) | V_EC_RESPQ(respq) |
V_EC_TYPE(type) | V_EC_GEN(gen) | V_EC_UP_TOKEN(token) |
F_EC_VALID);
return t3_sge_write_context(adapter, id, F_EGRESS);
}
/**
* t3_sge_init_flcntxt - initialize an SGE free - buffer list context
* @ adapter : the adapter to configure
* @ id : the context id
* @ gts_enable : whether to enable GTS for the context
* @ base_addr : base address of queue
* @ size : number of queue entries
* @ bsize : size of each buffer for this queue
* @ cong_thres : threshold to signal congestion to upstream producers
* @ gen : initial generation value for the context
* @ cidx : consumer pointer
*
* Initialize an SGE free list context and make it ready for use . The
* caller is responsible for ensuring only one context operation occurs
* at a time .
*/
int t3_sge_init_flcntxt(struct adapter *adapter, unsigned int id,
int gts_enable, u64 base_addr, unsigned int size,
unsigned int bsize, unsigned int cong_thres, int gen,
unsigned int cidx)
{
if (base_addr & 0 xfff) /* must be 4K aligned */
return -EINVAL;
if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
return -EBUSY;
base_addr >>= 12 ;
t3_write_reg(adapter, A_SG_CONTEXT_DATA0, base_addr);
base_addr >>= 32 ;
t3_write_reg(adapter, A_SG_CONTEXT_DATA1,
V_FL_BASE_HI((u32) base_addr) |
V_FL_INDEX_LO(cidx & M_FL_INDEX_LO));
t3_write_reg(adapter, A_SG_CONTEXT_DATA2, V_FL_SIZE(size) |
V_FL_GEN(gen) | V_FL_INDEX_HI(cidx >> 12 ) |
V_FL_ENTRY_SIZE_LO(bsize & M_FL_ENTRY_SIZE_LO));
t3_write_reg(adapter, A_SG_CONTEXT_DATA3,
V_FL_ENTRY_SIZE_HI(bsize >> (32 - S_FL_ENTRY_SIZE_LO)) |
V_FL_CONG_THRES(cong_thres) | V_FL_GTS(gts_enable));
return t3_sge_write_context(adapter, id, F_FREELIST);
}
/**
* t3_sge_init_rspcntxt - initialize an SGE response queue context
* @ adapter : the adapter to configure
* @ id : the context id
* @ irq_vec_idx : MSI - X interrupt vector index , 0 if no MSI - X , - 1 if no IRQ
* @ base_addr : base address of queue
* @ size : number of queue entries
* @ fl_thres : threshold for selecting the normal or jumbo free list
* @ gen : initial generation value for the context
* @ cidx : consumer pointer
*
* Initialize an SGE response queue context and make it ready for use .
* The caller is responsible for ensuring only one context operation
* occurs at a time .
*/
int t3_sge_init_rspcntxt(struct adapter *adapter, unsigned int id,
int irq_vec_idx, u64 base_addr, unsigned int size,
unsigned int fl_thres, int gen, unsigned int cidx)
{
unsigned int intr = 0 ;
if (base_addr & 0 xfff) /* must be 4K aligned */
return -EINVAL;
if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
return -EBUSY;
base_addr >>= 12 ;
t3_write_reg(adapter, A_SG_CONTEXT_DATA0, V_CQ_SIZE(size) |
V_CQ_INDEX(cidx));
t3_write_reg(adapter, A_SG_CONTEXT_DATA1, base_addr);
base_addr >>= 32 ;
if (irq_vec_idx >= 0 )
intr = V_RQ_MSI_VEC(irq_vec_idx) | F_RQ_INTR_EN;
t3_write_reg(adapter, A_SG_CONTEXT_DATA2,
V_CQ_BASE_HI((u32) base_addr) | intr | V_RQ_GEN(gen));
t3_write_reg(adapter, A_SG_CONTEXT_DATA3, fl_thres);
return t3_sge_write_context(adapter, id, F_RESPONSEQ);
}
/**
* t3_sge_init_cqcntxt - initialize an SGE completion queue context
* @ adapter : the adapter to configure
* @ id : the context id
* @ base_addr : base address of queue
* @ size : number of queue entries
* @ rspq : response queue for async notifications
* @ ovfl_mode : CQ overflow mode
* @ credits : completion queue credits
* @ credit_thres : the credit threshold
*
* Initialize an SGE completion queue context and make it ready for use .
* The caller is responsible for ensuring only one context operation
* occurs at a time .
*/
int t3_sge_init_cqcntxt(struct adapter *adapter, unsigned int id, u64 base_addr,
unsigned int size, int rspq, int ovfl_mode,
unsigned int credits, unsigned int credit_thres)
{
if (base_addr & 0 xfff) /* must be 4K aligned */
return -EINVAL;
if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
return -EBUSY;
base_addr >>= 12 ;
t3_write_reg(adapter, A_SG_CONTEXT_DATA0, V_CQ_SIZE(size));
t3_write_reg(adapter, A_SG_CONTEXT_DATA1, base_addr);
base_addr >>= 32 ;
t3_write_reg(adapter, A_SG_CONTEXT_DATA2,
V_CQ_BASE_HI((u32) base_addr) | V_CQ_RSPQ(rspq) |
V_CQ_GEN(1 ) | V_CQ_OVERFLOW_MODE(ovfl_mode) |
V_CQ_ERR(ovfl_mode));
t3_write_reg(adapter, A_SG_CONTEXT_DATA3, V_CQ_CREDITS(credits) |
V_CQ_CREDIT_THRES(credit_thres));
return t3_sge_write_context(adapter, id, F_CQ);
}
/**
* t3_sge_enable_ecntxt - enable / disable an SGE egress context
* @ adapter : the adapter
* @ id : the egress context id
* @ enable : enable ( 1 ) or disable ( 0 ) the context
*
* Enable or disable an SGE egress context . The caller is responsible for
* ensuring only one context operation occurs at a time .
*/
int t3_sge_enable_ecntxt(struct adapter *adapter, unsigned int id, int enable)
{
if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
return -EBUSY;
t3_write_reg(adapter, A_SG_CONTEXT_MASK0, 0 );
t3_write_reg(adapter, A_SG_CONTEXT_MASK1, 0 );
t3_write_reg(adapter, A_SG_CONTEXT_MASK2, 0 );
t3_write_reg(adapter, A_SG_CONTEXT_MASK3, F_EC_VALID);
t3_write_reg(adapter, A_SG_CONTEXT_DATA3, V_EC_VALID(enable));
t3_write_reg(adapter, A_SG_CONTEXT_CMD,
V_CONTEXT_CMD_OPCODE(1 ) | F_EGRESS | V_CONTEXT(id));
return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
0 , SG_CONTEXT_CMD_ATTEMPTS, 1 );
}
/**
* t3_sge_disable_fl - disable an SGE free - buffer list
* @ adapter : the adapter
* @ id : the free list context id
*
* Disable an SGE free - buffer list . The caller is responsible for
* ensuring only one context operation occurs at a time .
*/
int t3_sge_disable_fl(struct adapter *adapter, unsigned int id)
{
if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
return -EBUSY;
t3_write_reg(adapter, A_SG_CONTEXT_MASK0, 0 );
t3_write_reg(adapter, A_SG_CONTEXT_MASK1, 0 );
t3_write_reg(adapter, A_SG_CONTEXT_MASK2, V_FL_SIZE(M_FL_SIZE));
t3_write_reg(adapter, A_SG_CONTEXT_MASK3, 0 );
t3_write_reg(adapter, A_SG_CONTEXT_DATA2, 0 );
t3_write_reg(adapter, A_SG_CONTEXT_CMD,
V_CONTEXT_CMD_OPCODE(1 ) | F_FREELIST | V_CONTEXT(id));
return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
0 , SG_CONTEXT_CMD_ATTEMPTS, 1 );
}
/**
* t3_sge_disable_rspcntxt - disable an SGE response queue
* @ adapter : the adapter
* @ id : the response queue context id
*
* Disable an SGE response queue . The caller is responsible for
* ensuring only one context operation occurs at a time .
*/
int t3_sge_disable_rspcntxt(struct adapter *adapter, unsigned int id)
{
if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
return -EBUSY;
t3_write_reg(adapter, A_SG_CONTEXT_MASK0, V_CQ_SIZE(M_CQ_SIZE));
t3_write_reg(adapter, A_SG_CONTEXT_MASK1, 0 );
t3_write_reg(adapter, A_SG_CONTEXT_MASK2, 0 );
t3_write_reg(adapter, A_SG_CONTEXT_MASK3, 0 );
t3_write_reg(adapter, A_SG_CONTEXT_DATA0, 0 );
t3_write_reg(adapter, A_SG_CONTEXT_CMD,
V_CONTEXT_CMD_OPCODE(1 ) | F_RESPONSEQ | V_CONTEXT(id));
return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
0 , SG_CONTEXT_CMD_ATTEMPTS, 1 );
}
/**
* t3_sge_disable_cqcntxt - disable an SGE completion queue
* @ adapter : the adapter
* @ id : the completion queue context id
*
* Disable an SGE completion queue . The caller is responsible for
* ensuring only one context operation occurs at a time .
*/
int t3_sge_disable_cqcntxt(struct adapter *adapter, unsigned int id)
{
if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
return -EBUSY;
t3_write_reg(adapter, A_SG_CONTEXT_MASK0, V_CQ_SIZE(M_CQ_SIZE));
t3_write_reg(adapter, A_SG_CONTEXT_MASK1, 0 );
t3_write_reg(adapter, A_SG_CONTEXT_MASK2, 0 );
t3_write_reg(adapter, A_SG_CONTEXT_MASK3, 0 );
t3_write_reg(adapter, A_SG_CONTEXT_DATA0, 0 );
t3_write_reg(adapter, A_SG_CONTEXT_CMD,
V_CONTEXT_CMD_OPCODE(1 ) | F_CQ | V_CONTEXT(id));
return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
0 , SG_CONTEXT_CMD_ATTEMPTS, 1 );
}
/**
* t3_sge_cqcntxt_op - perform an operation on a completion queue context
* @ adapter : the adapter
* @ id : the context id
* @ op : the operation to perform
* @ credits : credit value to write
*
* Perform the selected operation on an SGE completion queue context .
* The caller is responsible for ensuring only one context operation
* occurs at a time .
*/
int t3_sge_cqcntxt_op(struct adapter *adapter, unsigned int id, unsigned int op,
unsigned int credits)
{
u32 val;
if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
return -EBUSY;
t3_write_reg(adapter, A_SG_CONTEXT_DATA0, credits << 16 );
t3_write_reg(adapter, A_SG_CONTEXT_CMD, V_CONTEXT_CMD_OPCODE(op) |
V_CONTEXT(id) | F_CQ);
if (t3_wait_op_done_val(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
0 , SG_CONTEXT_CMD_ATTEMPTS, 1 , &val))
return -EIO;
if (op >= 2 && op < 7 ) {
if (adapter->params.rev > 0 )
return G_CQ_INDEX(val);
t3_write_reg(adapter, A_SG_CONTEXT_CMD,
V_CONTEXT_CMD_OPCODE(0 ) | F_CQ | V_CONTEXT(id));
if (t3_wait_op_done(adapter, A_SG_CONTEXT_CMD,
F_CONTEXT_CMD_BUSY, 0 ,
SG_CONTEXT_CMD_ATTEMPTS, 1 ))
return -EIO;
return G_CQ_INDEX(t3_read_reg(adapter, A_SG_CONTEXT_DATA0));
}
return 0 ;
}
/**
* t3_config_rss - configure Rx packet steering
* @ adapter : the adapter
* @ rss_config : RSS settings ( written to TP_RSS_CONFIG )
* @ cpus : values for the CPU lookup table ( 0 xff terminated )
* @ rspq : values for the response queue lookup table ( 0 xffff terminated )
*
* Programs the receive packet steering logic . @ cpus and @ rspq provide
* the values for the CPU and response queue lookup tables . If they
* provide fewer values than the size of the tables the supplied values
* are used repeatedly until the tables are fully populated .
*/
void t3_config_rss(struct adapter *adapter, unsigned int rss_config,
const u8 * cpus, const u16 *rspq)
{
int i, j, cpu_idx = 0 , q_idx = 0 ;
if (cpus)
for (i = 0 ; i < RSS_TABLE_SIZE; ++i) {
u32 val = i << 16 ;
for (j = 0 ; j < 2 ; ++j) {
val |= (cpus[cpu_idx++] & 0 x3f) << (8 * j);
if (cpus[cpu_idx] == 0 xff)
cpu_idx = 0 ;
}
t3_write_reg(adapter, A_TP_RSS_LKP_TABLE, val);
}
if (rspq)
for (i = 0 ; i < RSS_TABLE_SIZE; ++i) {
t3_write_reg(adapter, A_TP_RSS_MAP_TABLE,
(i << 16 ) | rspq[q_idx++]);
if (rspq[q_idx] == 0 xffff)
q_idx = 0 ;
}
t3_write_reg(adapter, A_TP_RSS_CONFIG, rss_config);
}
/**
* t3_tp_set_offload_mode - put TP in NIC / offload mode
* @ adap : the adapter
* @ enable : 1 to select offload mode , 0 for regular NIC
*
* Switches TP to NIC / offload mode .
*/
void t3_tp_set_offload_mode(struct adapter *adap, int enable)
{
if (is_offload(adap) || !enable)
t3_set_reg_field(adap, A_TP_IN_CONFIG, F_NICMODE,
V_NICMODE(!enable));
}
/**
* pm_num_pages - calculate the number of pages of the payload memory
* @ mem_size : the size of the payload memory
* @ pg_size : the size of each payload memory page
*
* Calculate the number of pages , each of the given size , that fit in a
* memory of the specified size , respecting the HW requirement that the
* number of pages must be a multiple of 24 .
*/
static inline unsigned int pm_num_pages(unsigned int mem_size,
unsigned int pg_size)
{
unsigned int n = mem_size / pg_size;
return n - n % 24 ;
}
#define mem_region(adap, start, size, reg) \
t3_write_reg((adap), A_ ## reg, (start)); \
start += size
/**
* partition_mem - partition memory and configure TP memory settings
* @ adap : the adapter
* @ p : the TP parameters
*
* Partitions context and payload memory and configures TP ' s memory
* registers .
*/
static void partition_mem(struct adapter *adap, const struct tp_params *p)
{
unsigned int m, pstructs, tids = t3_mc5_size(&adap->mc5);
unsigned int timers = 0 , timers_shift = 22 ;
if (adap->params.rev > 0 ) {
if (tids <= 16 * 1024 ) {
timers = 1 ;
timers_shift = 16 ;
} else if (tids <= 64 * 1024 ) {
timers = 2 ;
timers_shift = 18 ;
} else if (tids <= 256 * 1024 ) {
timers = 3 ;
timers_shift = 20 ;
}
}
t3_write_reg(adap, A_TP_PMM_SIZE,
p->chan_rx_size | (p->chan_tx_size >> 16 ));
t3_write_reg(adap, A_TP_PMM_TX_BASE, 0 );
t3_write_reg(adap, A_TP_PMM_TX_PAGE_SIZE, p->tx_pg_size);
t3_write_reg(adap, A_TP_PMM_TX_MAX_PAGE, p->tx_num_pgs);
t3_set_reg_field(adap, A_TP_PARA_REG3, V_TXDATAACKIDX(M_TXDATAACKIDX),
V_TXDATAACKIDX(fls(p->tx_pg_size) - 12 ));
t3_write_reg(adap, A_TP_PMM_RX_BASE, 0 );
t3_write_reg(adap, A_TP_PMM_RX_PAGE_SIZE, p->rx_pg_size);
t3_write_reg(adap, A_TP_PMM_RX_MAX_PAGE, p->rx_num_pgs);
pstructs = p->rx_num_pgs + p->tx_num_pgs;
/* Add a bit of headroom and make multiple of 24 */
pstructs += 48 ;
pstructs -= pstructs % 24 ;
t3_write_reg(adap, A_TP_CMM_MM_MAX_PSTRUCT, pstructs);
m = tids * TCB_SIZE;
mem_region(adap, m, (64 << 10 ) * 64 , SG_EGR_CNTX_BADDR);
mem_region(adap, m, (64 << 10 ) * 64 , SG_CQ_CONTEXT_BADDR);
t3_write_reg(adap, A_TP_CMM_TIMER_BASE, V_CMTIMERMAXNUM(timers) | m);
m += ((p->ntimer_qs - 1 ) << timers_shift) + (1 << 22 );
mem_region(adap, m, pstructs * 64 , TP_CMM_MM_BASE);
mem_region(adap, m, 64 * (pstructs / 24 ), TP_CMM_MM_PS_FLST_BASE);
mem_region(adap, m, 64 * (p->rx_num_pgs / 24 ), TP_CMM_MM_RX_FLST_BASE);
mem_region(adap, m, 64 * (p->tx_num_pgs / 24 ), TP_CMM_MM_TX_FLST_BASE);
m = (m + 4095 ) & ~0 xfff;
t3_write_reg(adap, A_CIM_SDRAM_BASE_ADDR, m);
t3_write_reg(adap, A_CIM_SDRAM_ADDR_SIZE, p->cm_size - m);
tids = (p->cm_size - m - (3 << 20 )) / 3072 - 32 ;
m = t3_mc5_size(&adap->mc5) - adap->params.mc5.nservers -
adap->params.mc5.nfilters - adap->params.mc5.nroutes;
if (tids < m)
adap->params.mc5.nservers += m - tids;
}
static inline void tp_wr_indirect(struct adapter *adap, unsigned int addr,
u32 val)
{
t3_write_reg(adap, A_TP_PIO_ADDR, addr);
t3_write_reg(adap, A_TP_PIO_DATA, val);
}
static void tp_config(struct adapter *adap, const struct tp_params *p)
{
t3_write_reg(adap, A_TP_GLOBAL_CONFIG, F_TXPACINGENABLE | F_PATHMTU |
F_IPCHECKSUMOFFLOAD | F_UDPCHECKSUMOFFLOAD |
F_TCPCHECKSUMOFFLOAD | V_IPTTL(64 ));
t3_write_reg(adap, A_TP_TCP_OPTIONS, V_MTUDEFAULT(576 ) |
F_MTUENABLE | V_WINDOWSCALEMODE(1 ) |
V_TIMESTAMPSMODE(1 ) | V_SACKMODE(1 ) | V_SACKRX(1 ));
t3_write_reg(adap, A_TP_DACK_CONFIG, V_AUTOSTATE3(1 ) |
V_AUTOSTATE2(1 ) | V_AUTOSTATE1(0 ) |
V_BYTETHRESHOLD(26880 ) | V_MSSTHRESHOLD(2 ) |
F_AUTOCAREFUL | F_AUTOENABLE | V_DACK_MODE(1 ));
t3_set_reg_field(adap, A_TP_IN_CONFIG, F_RXFBARBPRIO | F_TXFBARBPRIO,
F_IPV6ENABLE | F_NICMODE);
t3_write_reg(adap, A_TP_TX_RESOURCE_LIMIT, 0 x18141814);
t3_write_reg(adap, A_TP_PARA_REG4, 0 x5050105);
t3_set_reg_field(adap, A_TP_PARA_REG6, 0 ,
adap->params.rev > 0 ? F_ENABLEESND :
F_T3A_ENABLEESND);
t3_set_reg_field(adap, A_TP_PC_CONFIG,
F_ENABLEEPCMDAFULL,
F_ENABLEOCSPIFULL |F_TXDEFERENABLE | F_HEARBEATDACK |
F_TXCONGESTIONMODE | F_RXCONGESTIONMODE);
t3_set_reg_field(adap, A_TP_PC_CONFIG2, F_CHDRAFULL,
F_ENABLEIPV6RSS | F_ENABLENONOFDTNLSYN |
F_ENABLEARPMISS | F_DISBLEDAPARBIT0);
t3_write_reg(adap, A_TP_PROXY_FLOW_CNTL, 1080 );
t3_write_reg(adap, A_TP_PROXY_FLOW_CNTL, 1000 );
if (adap->params.rev > 0 ) {
tp_wr_indirect(adap, A_TP_EGRESS_CONFIG, F_REWRITEFORCETOSIZE);
t3_set_reg_field(adap, A_TP_PARA_REG3, F_TXPACEAUTO,
F_TXPACEAUTO);
t3_set_reg_field(adap, A_TP_PC_CONFIG, F_LOCKTID, F_LOCKTID);
t3_set_reg_field(adap, A_TP_PARA_REG3, 0 , F_TXPACEAUTOSTRICT);
} else
t3_set_reg_field(adap, A_TP_PARA_REG3, 0 , F_TXPACEFIXED);
if (adap->params.rev == T3_REV_C)
t3_set_reg_field(adap, A_TP_PC_CONFIG,
V_TABLELATENCYDELTA(M_TABLELATENCYDELTA),
V_TABLELATENCYDELTA(4 ));
t3_write_reg(adap, A_TP_TX_MOD_QUEUE_WEIGHT1, 0 );
t3_write_reg(adap, A_TP_TX_MOD_QUEUE_WEIGHT0, 0 );
t3_write_reg(adap, A_TP_MOD_CHANNEL_WEIGHT, 0 );
t3_write_reg(adap, A_TP_MOD_RATE_LIMIT, 0 xf2200000);
}
/* Desired TP timer resolution in usec */
#define TP_TMR_RES 50
/* TCP timer values in ms */
#define TP_DACK_TIMER 50
#define TP_RTO_MIN 250
/**
* tp_set_timers - set TP timing parameters
* @ adap : the adapter to set
* @ core_clk : the core clock frequency in Hz
*
* Set TP ' s timing parameters , such as the various timer resolutions and
* the TCP timer values .
*/
static void tp_set_timers(struct adapter *adap, unsigned int core_clk)
{
unsigned int tre = fls(core_clk / (1000000 / TP_TMR_RES)) - 1 ;
unsigned int dack_re = fls(core_clk / 5000 ) - 1 ; /* 200us */
unsigned int tstamp_re = fls(core_clk / 1000 ); /* 1ms, at least */
unsigned int tps = core_clk >> tre;
t3_write_reg(adap, A_TP_TIMER_RESOLUTION, V_TIMERRESOLUTION(tre) |
V_DELAYEDACKRESOLUTION(dack_re) |
V_TIMESTAMPRESOLUTION(tstamp_re));
t3_write_reg(adap, A_TP_DACK_TIMER,
(core_clk >> dack_re) / (1000 / TP_DACK_TIMER));
t3_write_reg(adap, A_TP_TCP_BACKOFF_REG0, 0 x3020100);
t3_write_reg(adap, A_TP_TCP_BACKOFF_REG1, 0 x7060504);
t3_write_reg(adap, A_TP_TCP_BACKOFF_REG2, 0 xb0a0908);
t3_write_reg(adap, A_TP_TCP_BACKOFF_REG3, 0 xf0e0d0c);
t3_write_reg(adap, A_TP_SHIFT_CNT, V_SYNSHIFTMAX(6 ) |
V_RXTSHIFTMAXR1(4 ) | V_RXTSHIFTMAXR2(15 ) |
V_PERSHIFTBACKOFFMAX(8 ) | V_PERSHIFTMAX(8 ) |
V_KEEPALIVEMAX(9 ));
#define SECONDS * tps
t3_write_reg(adap, A_TP_MSL, adap->params.rev > 0 ? 0 : 2 SECONDS);
t3_write_reg(adap, A_TP_RXT_MIN, tps / (1000 / TP_RTO_MIN));
t3_write_reg(adap, A_TP_RXT_MAX, 64 SECONDS);
t3_write_reg(adap, A_TP_PERS_MIN, 5 SECONDS);
t3_write_reg(adap, A_TP_PERS_MAX, 64 SECONDS);
t3_write_reg(adap, A_TP_KEEP_IDLE, 7200 SECONDS);
t3_write_reg(adap, A_TP_KEEP_INTVL, 75 SECONDS);
t3_write_reg(adap, A_TP_INIT_SRTT, 3 SECONDS);
t3_write_reg(adap, A_TP_FINWAIT2_TIMER, 600 SECONDS);
#undef SECONDS
}
/**
* t3_tp_set_coalescing_size - set receive coalescing size
* @ adap : the adapter
* @ size : the receive coalescing size
* @ psh : whether a set PSH bit should deliver coalesced data
*
* Set the receive coalescing size and PSH bit handling .
*/
static int t3_tp_set_coalescing_size(struct adapter *adap,
unsigned int size, int psh)
{
u32 val;
if (size > MAX_RX_COALESCING_LEN)
return -EINVAL;
val = t3_read_reg(adap, A_TP_PARA_REG3);
val &= ~(F_RXCOALESCEENABLE | F_RXCOALESCEPSHEN);
if (size) {
val |= F_RXCOALESCEENABLE;
if (psh)
val |= F_RXCOALESCEPSHEN;
size = min(MAX_RX_COALESCING_LEN, size);
t3_write_reg(adap, A_TP_PARA_REG2, V_RXCOALESCESIZE(size) |
V_MAXRXDATA(MAX_RX_COALESCING_LEN));
}
t3_write_reg(adap, A_TP_PARA_REG3, val);
return 0 ;
}
/**
* t3_tp_set_max_rxsize - set the max receive size
* @ adap : the adapter
* @ size : the max receive size
*
* Set TP ' s max receive size . This is the limit that applies when
* receive coalescing is disabled .
*/
static void t3_tp_set_max_rxsize(struct adapter *adap, unsigned int size)
{
t3_write_reg(adap, A_TP_PARA_REG7,
V_PMMAXXFERLEN0(size) | V_PMMAXXFERLEN1(size));
}
static void init_mtus(unsigned short mtus[])
{
/*
* See draft - mathis - plpmtud - 00 . txt for the values . The min is 88 so
* it can accommodate max size TCP / IP headers when SACK and timestamps
* are enabled and still have at least 8 bytes of payload .
*/
mtus[0 ] = 88 ;
mtus[1 ] = 88 ;
mtus[2 ] = 256 ;
mtus[3 ] = 512 ;
mtus[4 ] = 576 ;
mtus[5 ] = 1024 ;
mtus[6 ] = 1280 ;
mtus[7 ] = 1492 ;
mtus[8 ] = 1500 ;
mtus[9 ] = 2002 ;
mtus[10 ] = 2048 ;
mtus[11 ] = 4096 ;
mtus[12 ] = 4352 ;
mtus[13 ] = 8192 ;
mtus[14 ] = 9000 ;
mtus[15 ] = 9600 ;
}
/*
* Initial congestion control parameters .
*/
static void init_cong_ctrl(unsigned short *a, unsigned short *b)
{
a[0 ] = a[1 ] = a[2 ] = a[3 ] = a[4 ] = a[5 ] = a[6 ] = a[7 ] = a[8 ] = 1 ;
a[9 ] = 2 ;
a[10 ] = 3 ;
a[11 ] = 4 ;
a[12 ] = 5 ;
a[13 ] = 6 ;
a[14 ] = 7 ;
a[15 ] = 8 ;
a[16 ] = 9 ;
a[17 ] = 10 ;
a[18 ] = 14 ;
a[19 ] = 17 ;
a[20 ] = 21 ;
a[21 ] = 25 ;
a[22 ] = 30 ;
a[23 ] = 35 ;
a[24 ] = 45 ;
a[25 ] = 60 ;
a[26 ] = 80 ;
a[27 ] = 100 ;
a[28 ] = 200 ;
a[29 ] = 300 ;
a[30 ] = 400 ;
a[31 ] = 500 ;
b[0 ] = b[1 ] = b[2 ] = b[3 ] = b[4 ] = b[5 ] = b[6 ] = b[7 ] = b[8 ] = 0 ;
b[9 ] = b[10 ] = 1 ;
b[11 ] = b[12 ] = 2 ;
b[13 ] = b[14 ] = b[15 ] = b[16 ] = 3 ;
b[17 ] = b[18 ] = b[19 ] = b[20 ] = b[21 ] = 4 ;
b[22 ] = b[23 ] = b[24 ] = b[25 ] = b[26 ] = b[27 ] = 5 ;
b[28 ] = b[29 ] = 6 ;
b[30 ] = b[31 ] = 7 ;
}
/* The minimum additive increment value for the congestion control table */
#define CC_MIN_INCR 2 U
/**
* t3_load_mtus - write the MTU and congestion control HW tables
* @ adap : the adapter
* @ mtus : the unrestricted values for the MTU table
* @ alpha : the values for the congestion control alpha parameter
* @ beta : the values for the congestion control beta parameter
* @ mtu_cap : the maximum permitted effective MTU
*
* Write the MTU table with the supplied MTUs capping each at & mtu_cap .
* Update the high - speed congestion control table with the supplied alpha ,
* beta , and MTUs .
*/
void t3_load_mtus(struct adapter *adap, unsigned short mtus[NMTUS],
unsigned short alpha[NCCTRL_WIN],
unsigned short beta[NCCTRL_WIN], unsigned short mtu_cap)
{
static const unsigned int avg_pkts[NCCTRL_WIN] = {
2 , 6 , 10 , 14 , 20 , 28 , 40 , 56 , 80 , 112 , 160 , 224 , 320 , 448 , 640 ,
896 , 1281 , 1792 , 2560 , 3584 , 5120 , 7168 , 10240 , 14336 , 20480 ,
28672 , 40960 , 57344 , 81920 , 114688 , 163840 , 229376
};
unsigned int i, w;
for (i = 0 ; i < NMTUS; ++i) {
unsigned int mtu = min(mtus[i], mtu_cap);
unsigned int log2 = fls(mtu);
if (!(mtu & ((1 << log2) >> 2 ))) /* round */
log2--;
t3_write_reg(adap, A_TP_MTU_TABLE,
(i << 24 ) | (log2 << 16 ) | mtu);
for (w = 0 ; w < NCCTRL_WIN; ++w) {
unsigned int inc;
inc = max(((mtu - 40 ) * alpha[w]) / avg_pkts[w],
CC_MIN_INCR);
t3_write_reg(adap, A_TP_CCTRL_TABLE, (i << 21 ) |
(w << 16 ) | (beta[w] << 13 ) | inc);
}
}
}
/**
* t3_tp_get_mib_stats - read TP ' s MIB counters
* @ adap : the adapter
* @ tps : holds the returned counter values
*
* Returns the values of TP ' s MIB counters .
*/
void t3_tp_get_mib_stats(struct adapter *adap, struct tp_mib_stats *tps)
{
t3_read_indirect(adap, A_TP_MIB_INDEX, A_TP_MIB_RDATA, (u32 *) tps,
sizeof (*tps) / sizeof (u32), 0 );
}
#define ulp_region(adap, name, start, len) \
t3_write_reg((adap), A_ULPRX_ ## name ## _LLIMIT, (start)); \
t3_write_reg((adap), A_ULPRX_ ## name ## _ULIMIT, \
(start) + (len) - 1 ); \
start += len
#define ulptx_region(adap, name, start, len) \
t3_write_reg((adap), A_ULPTX_ ## name ## _LLIMIT, (start)); \
t3_write_reg((adap), A_ULPTX_ ## name ## _ULIMIT, \
(start) + (len) - 1 )
static void ulp_config(struct adapter *adap, const struct tp_params *p)
{
unsigned int m = p->chan_rx_size;
ulp_region(adap, ISCSI, m, p->chan_rx_size / 8 );
ulp_region(adap, TDDP, m, p->chan_rx_size / 8 );
ulptx_region(adap, TPT, m, p->chan_rx_size / 4 );
ulp_region(adap, STAG, m, p->chan_rx_size / 4 );
ulp_region(adap, RQ, m, p->chan_rx_size / 4 );
ulptx_region(adap, PBL, m, p->chan_rx_size / 4 );
ulp_region(adap, PBL, m, p->chan_rx_size / 4 );
t3_write_reg(adap, A_ULPRX_TDDP_TAGMASK, 0 xffffffff);
}
/**
* t3_set_proto_sram - set the contents of the protocol sram
* @ adap : the adapter
* @ data : the protocol image
*
* Write the contents of the protocol SRAM .
*/
int t3_set_proto_sram(struct adapter *adap, const u8 *data)
{
int i;
const __be32 *buf = (const __be32 *)data;
for (i = 0 ; i < PROTO_SRAM_LINES; i++) {
t3_write_reg(adap, A_TP_EMBED_OP_FIELD5, be32_to_cpu(*buf++));
t3_write_reg(adap, A_TP_EMBED_OP_FIELD4, be32_to_cpu(*buf++));
t3_write_reg(adap, A_TP_EMBED_OP_FIELD3, be32_to_cpu(*buf++));
t3_write_reg(adap, A_TP_EMBED_OP_FIELD2, be32_to_cpu(*buf++));
t3_write_reg(adap, A_TP_EMBED_OP_FIELD1, be32_to_cpu(*buf++));
t3_write_reg(adap, A_TP_EMBED_OP_FIELD0, i << 1 | 1 << 31 );
if (t3_wait_op_done(adap, A_TP_EMBED_OP_FIELD0, 1 , 1 , 5 , 1 ))
return -EIO;
}
t3_write_reg(adap, A_TP_EMBED_OP_FIELD0, 0 );
return 0 ;
}
void t3_config_trace_filter(struct adapter *adapter,
const struct trace_params *tp, int filter_index,
int invert, int enable)
{
u32 addr, key[4 ], mask[4 ];
key[0 ] = tp->sport | (tp->sip << 16 );
key[1 ] = (tp->sip >> 16 ) | (tp->dport << 16 );
key[2 ] = tp->dip;
key[3 ] = tp->proto | (tp->vlan << 8 ) | (tp->intf << 20 );
mask[0 ] = tp->sport_mask | (tp->sip_mask << 16 );
mask[1 ] = (tp->sip_mask >> 16 ) | (tp->dport_mask << 16 );
mask[2 ] = tp->dip_mask;
mask[3 ] = tp->proto_mask | (tp->vlan_mask << 8 ) | (tp->intf_mask << 20 );
if (invert)
key[3 ] |= (1 << 29 );
if (enable)
key[3 ] |= (1 << 28 );
addr = filter_index ? A_TP_RX_TRC_KEY0 : A_TP_TX_TRC_KEY0;
tp_wr_indirect(adapter, addr++, key[0 ]);
tp_wr_indirect(adapter, addr++, mask[0 ]);
tp_wr_indirect(adapter, addr++, key[1 ]);
tp_wr_indirect(adapter, addr++, mask[1 ]);
tp_wr_indirect(adapter, addr++, key[2 ]);
tp_wr_indirect(adapter, addr++, mask[2 ]);
tp_wr_indirect(adapter, addr++, key[3 ]);
tp_wr_indirect(adapter, addr, mask[3 ]);
t3_read_reg(adapter, A_TP_PIO_DATA);
}
/**
* t3_config_sched - configure a HW traffic scheduler
* @ adap : the adapter
* @ kbps : target rate in Kbps
* @ sched : the scheduler index
*
* Configure a HW scheduler for the target rate
*/
int t3_config_sched(struct adapter *adap, unsigned int kbps, int sched)
{
unsigned int v, tps, cpt, bpt, delta, mindelta = ~0 ;
unsigned int clk = adap->params.vpd.cclk * 1000 ;
unsigned int selected_cpt = 0 , selected_bpt = 0 ;
if (kbps > 0 ) {
kbps *= 125 ; /* -> bytes */
for (cpt = 1 ; cpt <= 255 ; cpt++) {
tps = clk / cpt;
bpt = (kbps + tps / 2 ) / tps;
if (bpt > 0 && bpt <= 255 ) {
v = bpt * tps;
delta = v >= kbps ? v - kbps : kbps - v;
if (delta <= mindelta) {
mindelta = delta;
selected_cpt = cpt;
selected_bpt = bpt;
}
} else if (selected_cpt)
break ;
}
if (!selected_cpt)
return -EINVAL;
}
t3_write_reg(adap, A_TP_TM_PIO_ADDR,
A_TP_TX_MOD_Q1_Q0_RATE_LIMIT - sched / 2 );
v = t3_read_reg(adap, A_TP_TM_PIO_DATA);
if (sched & 1 )
v = (v & 0 xffff) | (selected_cpt << 16 ) | (selected_bpt << 24 );
else
v = (v & 0 xffff0000) | selected_cpt | (selected_bpt << 8 );
t3_write_reg(adap, A_TP_TM_PIO_DATA, v);
return 0 ;
}
static int tp_init(struct adapter *adap, const struct tp_params *p)
{
int busy = 0 ;
tp_config(adap, p);
t3_set_vlan_accel(adap, 3 , 0 );
if (is_offload(adap)) {
tp_set_timers(adap, adap->params.vpd.cclk * 1000 );
t3_write_reg(adap, A_TP_RESET, F_FLSTINITENABLE);
busy = t3_wait_op_done(adap, A_TP_RESET, F_FLSTINITENABLE,
0 , 1000 , 5 );
if (busy)
CH_ERR(adap, "TP initialization timed out\n" );
}
if (!busy)
t3_write_reg(adap, A_TP_RESET, F_TPRESET);
return busy;
}
/*
* Perform the bits of HW initialization that are dependent on the Tx
* channels being used .
*/
static void chan_init_hw(struct adapter *adap, unsigned int chan_map)
{
int i;
if (chan_map != 3 ) { /* one channel */
t3_set_reg_field(adap, A_ULPRX_CTL, F_ROUND_ROBIN, 0 );
t3_set_reg_field(adap, A_ULPTX_CONFIG, F_CFG_RR_ARB, 0 );
t3_write_reg(adap, A_MPS_CFG, F_TPRXPORTEN | F_ENFORCEPKT |
(chan_map == 1 ? F_TPTXPORT0EN | F_PORT0ACTIVE :
F_TPTXPORT1EN | F_PORT1ACTIVE));
t3_write_reg(adap, A_PM1_TX_CFG,
chan_map == 1 ? 0 xffffffff : 0 );
} else { /* two channels */
t3_set_reg_field(adap, A_ULPRX_CTL, 0 , F_ROUND_ROBIN);
t3_set_reg_field(adap, A_ULPTX_CONFIG, 0 , F_CFG_RR_ARB);
t3_write_reg(adap, A_ULPTX_DMA_WEIGHT,
V_D1_WEIGHT(16 ) | V_D0_WEIGHT(16 ));
t3_write_reg(adap, A_MPS_CFG, F_TPTXPORT0EN | F_TPTXPORT1EN |
F_TPRXPORTEN | F_PORT0ACTIVE | F_PORT1ACTIVE |
F_ENFORCEPKT);
t3_write_reg(adap, A_PM1_TX_CFG, 0 x80008000);
t3_set_reg_field(adap, A_TP_PC_CONFIG, 0 , F_TXTOSQUEUEMAPMODE);
t3_write_reg(adap, A_TP_TX_MOD_QUEUE_REQ_MAP,
V_TX_MOD_QUEUE_REQ_MAP(0 xaa));
for (i = 0 ; i < 16 ; i++)
t3_write_reg(adap, A_TP_TX_MOD_QUE_TABLE,
(i << 16 ) | 0 x1010);
}
}
static int calibrate_xgm(struct adapter *adapter)
{
if (uses_xaui(adapter)) {
unsigned int v, i;
for (i = 0 ; i < 5 ; ++i) {
t3_write_reg(adapter, A_XGM_XAUI_IMP, 0 );
t3_read_reg(adapter, A_XGM_XAUI_IMP);
msleep(1 );
v = t3_read_reg(adapter, A_XGM_XAUI_IMP);
if (!(v & (F_XGM_CALFAULT | F_CALBUSY))) {
t3_write_reg(adapter, A_XGM_XAUI_IMP,
V_XAUIIMP(G_CALIMP(v) >> 2 ));
return 0 ;
}
}
CH_ERR(adapter, "MAC calibration failed\n" );
return -1 ;
} else {
t3_write_reg(adapter, A_XGM_RGMII_IMP,
V_RGMIIIMPPD(2 ) | V_RGMIIIMPPU(3 ));
t3_set_reg_field(adapter, A_XGM_RGMII_IMP, F_XGM_IMPSETUPDATE,
F_XGM_IMPSETUPDATE);
}
return 0 ;
}
static void calibrate_xgm_t3b(struct adapter *adapter)
{
if (!uses_xaui(adapter)) {
t3_write_reg(adapter, A_XGM_RGMII_IMP, F_CALRESET |
F_CALUPDATE | V_RGMIIIMPPD(2 ) | V_RGMIIIMPPU(3 ));
t3_set_reg_field(adapter, A_XGM_RGMII_IMP, F_CALRESET, 0 );
t3_set_reg_field(adapter, A_XGM_RGMII_IMP, 0 ,
F_XGM_IMPSETUPDATE);
t3_set_reg_field(adapter, A_XGM_RGMII_IMP, F_XGM_IMPSETUPDATE,
0 );
t3_set_reg_field(adapter, A_XGM_RGMII_IMP, F_CALUPDATE, 0 );
t3_set_reg_field(adapter, A_XGM_RGMII_IMP, 0 , F_CALUPDATE);
}
}
struct mc7_timing_params {
unsigned char ActToPreDly;
unsigned char ActToRdWrDly;
unsigned char PreCyc;
unsigned char RefCyc[5 ];
unsigned char BkCyc;
unsigned char WrToRdDly;
unsigned char RdToWrDly;
};
/*
* Write a value to a register and check that the write completed . These
* writes normally complete in a cycle or two , so one read should suffice .
* The very first read exists to flush the posted write to the device .
*/
static int wrreg_wait(struct adapter *adapter, unsigned int addr, u32 val)
{
t3_write_reg(adapter, addr, val);
t3_read_reg(adapter, addr); /* flush */
if (!(t3_read_reg(adapter, addr) & F_BUSY))
return 0 ;
CH_ERR(adapter, "write to MC7 register 0x%x timed out\n" , addr);
return -EIO;
}
static int mc7_init(struct mc7 *mc7, unsigned int mc7_clock, int mem_type)
{
static const unsigned int mc7_mode[] = {
0 x632, 0 x642, 0 x652, 0 x432, 0 x442
};
static const struct mc7_timing_params mc7_timings[] = {
{12 , 3 , 4 , {20 , 28 , 34 , 52 , 0 }, 15 , 6 , 4 },
{12 , 4 , 5 , {20 , 28 , 34 , 52 , 0 }, 16 , 7 , 4 },
{12 , 5 , 6 , {20 , 28 , 34 , 52 , 0 }, 17 , 8 , 4 },
{9 , 3 , 4 , {15 , 21 , 26 , 39 , 0 }, 12 , 6 , 4 },
{9 , 4 , 5 , {15 , 21 , 26 , 39 , 0 }, 13 , 7 , 4 }
};
u32 val;
unsigned int width, density, slow, attempts;
struct adapter *adapter = mc7->adapter;
const struct mc7_timing_params *p = &mc7_timings[mem_type];
if (!mc7->size)
return 0 ;
val = t3_read_reg(adapter, mc7->offset + A_MC7_CFG);
slow = val & F_SLOW;
width = G_WIDTH(val);
density = G_DEN(val);
t3_write_reg(adapter, mc7->offset + A_MC7_CFG, val | F_IFEN);
val = t3_read_reg(adapter, mc7->offset + A_MC7_CFG); /* flush */
msleep(1 );
if (!slow) {
t3_write_reg(adapter, mc7->offset + A_MC7_CAL, F_SGL_CAL_EN);
t3_read_reg(adapter, mc7->offset + A_MC7_CAL);
msleep(1 );
if (t3_read_reg(adapter, mc7->offset + A_MC7_CAL) &
(F_BUSY | F_SGL_CAL_EN | F_CAL_FAULT)) {
CH_ERR(adapter, "%s MC7 calibration timed out\n" ,
mc7->name);
goto out_fail;
}
}
t3_write_reg(adapter, mc7->offset + A_MC7_PARM,
V_ACTTOPREDLY(p->ActToPreDly) |
V_ACTTORDWRDLY(p->ActToRdWrDly) | V_PRECYC(p->PreCyc) |
V_REFCYC(p->RefCyc[density]) | V_BKCYC(p->BkCyc) |
V_WRTORDDLY(p->WrToRdDly) | V_RDTOWRDLY(p->RdToWrDly));
t3_write_reg(adapter, mc7->offset + A_MC7_CFG,
val | F_CLKEN | F_TERM150);
t3_read_reg(adapter, mc7->offset + A_MC7_CFG); /* flush */
if (!slow)
t3_set_reg_field(adapter, mc7->offset + A_MC7_DLL, F_DLLENB,
F_DLLENB);
udelay(1 );
val = slow ? 3 : 6 ;
if (wrreg_wait(adapter, mc7->offset + A_MC7_PRE, 0 ) ||
wrreg_wait(adapter, mc7->offset + A_MC7_EXT_MODE2, 0 ) ||
wrreg_wait(adapter, mc7->offset + A_MC7_EXT_MODE3, 0 ) ||
wrreg_wait(adapter, mc7->offset + A_MC7_EXT_MODE1, val))
goto out_fail;
if (!slow) {
t3_write_reg(adapter, mc7->offset + A_MC7_MODE, 0 x100);
t3_set_reg_field(adapter, mc7->offset + A_MC7_DLL, F_DLLRST, 0 );
udelay(5 );
}
if (wrreg_wait(adapter, mc7->offset + A_MC7_PRE, 0 ) ||
wrreg_wait(adapter, mc7->offset + A_MC7_REF, 0 ) ||
wrreg_wait(adapter, mc7->offset + A_MC7_REF, 0 ) ||
wrreg_wait(adapter, mc7->offset + A_MC7_MODE,
mc7_mode[mem_type]) ||
wrreg_wait(adapter, mc7->offset + A_MC7_EXT_MODE1, val | 0 x380) ||
wrreg_wait(adapter, mc7->offset + A_MC7_EXT_MODE1, val))
goto out_fail;
/* clock value is in KHz */
mc7_clock = mc7_clock * 7812 + mc7_clock / 2 ; /* ns */
mc7_clock /= 1000000 ; /* KHz->MHz, ns->us */
t3_write_reg(adapter, mc7->offset + A_MC7_REF,
F_PERREFEN | V_PREREFDIV(mc7_clock));
t3_read_reg(adapter, mc7->offset + A_MC7_REF); /* flush */
t3_write_reg(adapter, mc7->offset + A_MC7_ECC, F_ECCGENEN | F_ECCCHKEN);
t3_write_reg(adapter, mc7->offset + A_MC7_BIST_DATA, 0 );
t3_write_reg(adapter, mc7->offset + A_MC7_BIST_ADDR_BEG, 0 );
t3_write_reg(adapter, mc7->offset + A_MC7_BIST_ADDR_END,
(mc7->size << width) - 1 );
t3_write_reg(adapter, mc7->offset + A_MC7_BIST_OP, V_OP(1 ));
t3_read_reg(adapter, mc7->offset + A_MC7_BIST_OP); /* flush */
attempts = 50 ;
do {
msleep(250 );
val = t3_read_reg(adapter, mc7->offset + A_MC7_BIST_OP);
} while ((val & F_BUSY) && --attempts);
if (val & F_BUSY) {
CH_ERR(adapter, "%s MC7 BIST timed out\n" , mc7->name);
goto out_fail;
}
/* Enable normal memory accesses. */
t3_set_reg_field(adapter, mc7->offset + A_MC7_CFG, 0 , F_RDY);
return 0 ;
out_fail:
return -1 ;
}
static void config_pcie(struct adapter *adap)
{
static const u16 ack_lat[4 ][6 ] = {
{237 , 416 , 559 , 1071 , 2095 , 4143 },
{128 , 217 , 289 , 545 , 1057 , 2081 },
{73 , 118 , 154 , 282 , 538 , 1050 },
{67 , 107 , 86 , 150 , 278 , 534 }
};
static const u16 rpl_tmr[4 ][6 ] = {
{711 , 1248 , 1677 , 3213 , 6285 , 12429 },
{384 , 651 , 867 , 1635 , 3171 , 6243 },
{219 , 354 , 462 , 846 , 1614 , 3150 },
{201 , 321 , 258 , 450 , 834 , 1602 }
};
u16 val, devid;
unsigned int log2_width, pldsize;
unsigned int fst_trn_rx, fst_trn_tx, acklat, rpllmt;
pcie_capability_read_word(adap->pdev, PCI_EXP_DEVCTL, &val);
pldsize = (val & PCI_EXP_DEVCTL_PAYLOAD) >> 5 ;
pci_read_config_word(adap->pdev, 0 x2, &devid);
if (devid == 0 x37) {
pcie_capability_write_word(adap->pdev, PCI_EXP_DEVCTL,
val & ~PCI_EXP_DEVCTL_READRQ &
~PCI_EXP_DEVCTL_PAYLOAD);
pldsize = 0 ;
}
pcie_capability_read_word(adap->pdev, PCI_EXP_LNKCTL, &val);
fst_trn_tx = G_NUMFSTTRNSEQ(t3_read_reg(adap, A_PCIE_PEX_CTRL0));
fst_trn_rx = adap->params.rev == 0 ? fst_trn_tx :
G_NUMFSTTRNSEQRX(t3_read_reg(adap, A_PCIE_MODE));
log2_width = fls(adap->params.pci.width) - 1 ;
acklat = ack_lat[log2_width][pldsize];
if (val & PCI_EXP_LNKCTL_ASPM_L0S) /* check LOsEnable */
acklat += fst_trn_tx * 4 ;
rpllmt = rpl_tmr[log2_width][pldsize] + fst_trn_rx * 4 ;
if (adap->params.rev == 0 )
t3_set_reg_field(adap, A_PCIE_PEX_CTRL1,
V_T3A_ACKLAT(M_T3A_ACKLAT),
V_T3A_ACKLAT(acklat));
else
t3_set_reg_field(adap, A_PCIE_PEX_CTRL1, V_ACKLAT(M_ACKLAT),
V_ACKLAT(acklat));
t3_set_reg_field(adap, A_PCIE_PEX_CTRL0, V_REPLAYLMT(M_REPLAYLMT),
V_REPLAYLMT(rpllmt));
t3_write_reg(adap, A_PCIE_PEX_ERR, 0 xffffffff);
t3_set_reg_field(adap, A_PCIE_CFG, 0 ,
F_ENABLELINKDWNDRST | F_ENABLELINKDOWNRST |
F_PCIE_DMASTOPEN | F_PCIE_CLIDECEN);
}
/*
* Initialize and configure T3 HW modules . This performs the
* initialization steps that need to be done once after a card is reset .
* MAC and PHY initialization is handled separarely whenever a port is enabled .
*
* fw_params are passed to FW and their value is platform dependent . Only the
* top 8 bits are available for use , the rest must be 0 .
*/
int t3_init_hw(struct adapter *adapter, u32 fw_params)
{
int err = -EIO, attempts, i;
const struct vpd_params *vpd = &adapter->params.vpd;
if (adapter->params.rev > 0 )
calibrate_xgm_t3b(adapter);
else if (calibrate_xgm(adapter))
goto out_err;
if (vpd->mclk) {
partition_mem(adapter, &adapter->params.tp);
if (mc7_init(&adapter->pmrx, vpd->mclk, vpd->mem_timing) ||
mc7_init(&adapter->pmtx, vpd->mclk, vpd->mem_timing) ||
mc7_init(&adapter->cm, vpd->mclk, vpd->mem_timing) ||
t3_mc5_init(&adapter->mc5, adapter->params.mc5.nservers,
adapter->params.mc5.nfilters,
adapter->params.mc5.nroutes))
goto out_err;
for (i = 0 ; i < 32 ; i++)
if (clear_sge_ctxt(adapter, i, F_CQ))
goto out_err;
}
if (tp_init(adapter, &adapter->params.tp))
goto out_err;
t3_tp_set_coalescing_size(adapter,
min(adapter->params.sge.max_pkt_size,
MAX_RX_COALESCING_LEN), 1 );
t3_tp_set_max_rxsize(adapter,
min(adapter->params.sge.max_pkt_size, 16384 U));
ulp_config(adapter, &adapter->params.tp);
if (is_pcie(adapter))
config_pcie(adapter);
else
t3_set_reg_field(adapter, A_PCIX_CFG, 0 ,
F_DMASTOPEN | F_CLIDECEN);
if (adapter->params.rev == T3_REV_C)
t3_set_reg_field(adapter, A_ULPTX_CONFIG, 0 ,
F_CFG_CQE_SOP_MASK);
t3_write_reg(adapter, A_PM1_RX_CFG, 0 xffffffff);
t3_write_reg(adapter, A_PM1_RX_MODE, 0 );
t3_write_reg(adapter, A_PM1_TX_MODE, 0 );
chan_init_hw(adapter, adapter->params.chan_map);
t3_sge_init(adapter, &adapter->params.sge);
t3_set_reg_field(adapter, A_PL_RST, 0 , F_FATALPERREN);
t3_write_reg(adapter, A_T3DBG_GPIO_ACT_LOW, calc_gpio_intr(adapter));
t3_write_reg(adapter, A_CIM_HOST_ACC_DATA, vpd->uclk | fw_params);
t3_write_reg(adapter, A_CIM_BOOT_CFG,
V_BOOTADDR(FW_FLASH_BOOT_ADDR >> 2 ));
t3_read_reg(adapter, A_CIM_BOOT_CFG); /* flush */
attempts = 100 ;
do { /* wait for uP to initialize */
msleep(20 );
} while (t3_read_reg(adapter, A_CIM_HOST_ACC_DATA) && --attempts);
if (!attempts) {
CH_ERR(adapter, "uP initialization timed out\n" );
goto out_err;
}
err = 0 ;
out_err:
return err;
}
/**
* get_pci_mode - determine a card ' s PCI mode
* @ adapter : the adapter
* @ p : where to store the PCI settings
*
* Determines a card ' s PCI mode and associated parameters , such as speed
* and width .
*/
static void get_pci_mode(struct adapter *adapter, struct pci_params *p)
{
static unsigned short speed_map[] = { 33 , 66 , 100 , 133 };
u32 pci_mode;
if (pci_is_pcie(adapter->pdev)) {
u16 val;
p->variant = PCI_VARIANT_PCIE;
pcie_capability_read_word(adapter->pdev, PCI_EXP_LNKSTA, &val);
p->width = (val >> 4 ) & 0 x3f;
return ;
}
pci_mode = t3_read_reg(adapter, A_PCIX_MODE);
p->speed = speed_map[G_PCLKRANGE(pci_mode)];
p->width = (pci_mode & F_64BIT) ? 64 : 32 ;
pci_mode = G_PCIXINITPAT(pci_mode);
if (pci_mode == 0 )
p->variant = PCI_VARIANT_PCI;
else if (pci_mode < 4 )
p->variant = PCI_VARIANT_PCIX_MODE1_PARITY;
else if (pci_mode < 8 )
p->variant = PCI_VARIANT_PCIX_MODE1_ECC;
else
p->variant = PCI_VARIANT_PCIX_266_MODE2;
}
/**
* init_link_config - initialize a link ' s SW state
* @ lc : structure holding the link state
* @ caps : information about the current card
*
* Initializes the SW state maintained for each link , including the link ' s
* capabilities and default speed / duplex / flow - control / autonegotiation
* settings .
*/
static void init_link_config(struct link_config *lc, unsigned int caps)
{
lc->supported = 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;
}
}
/**
* mc7_calc_size - calculate MC7 memory size
* @ cfg : the MC7 configuration
*
* Calculates the size of an MC7 memory in bytes from the value of its
* configuration register .
*/
static unsigned int mc7_calc_size(u32 cfg)
{
unsigned int width = G_WIDTH(cfg);
unsigned int banks = !!(cfg & F_BKS) + 1 ;
unsigned int org = !!(cfg & F_ORG) + 1 ;
unsigned int density = G_DEN(cfg);
unsigned int MBs = ((256 << density) * banks) / (org << width);
return MBs << 20 ;
}
static void mc7_prep(struct adapter *adapter, struct mc7 *mc7,
unsigned int base_addr, const char *name)
{
u32 cfg;
mc7->adapter = adapter;
mc7->name = name;
mc7->offset = base_addr - MC7_PMRX_BASE_ADDR;
cfg = t3_read_reg(adapter, mc7->offset + A_MC7_CFG);
mc7->size = G_DEN(cfg) == M_DEN ? 0 : mc7_calc_size(cfg);
mc7->width = G_WIDTH(cfg);
}
static void mac_prep(struct cmac *mac, struct adapter *adapter, int index)
{
u16 devid;
mac->adapter = adapter;
pci_read_config_word(adapter->pdev, 0 x2, &devid);
if (devid == 0 x37 && !adapter->params.vpd.xauicfg[1 ])
index = 0 ;
mac->offset = (XGMAC0_1_BASE_ADDR - XGMAC0_0_BASE_ADDR) * index;
mac->nucast = 1 ;
if (adapter->params.rev == 0 && uses_xaui(adapter)) {
t3_write_reg(adapter, A_XGM_SERDES_CTRL + mac->offset,
is_10G(adapter) ? 0 x2901c04 : 0 x2301c04);
t3_set_reg_field(adapter, A_XGM_PORT_CFG + mac->offset,
F_ENRGMII, 0 );
}
}
static void early_hw_init(struct adapter *adapter,
const struct adapter_info *ai)
{
u32 val = V_PORTSPEED(is_10G(adapter) ? 3 : 2 );
mi1_init(adapter, ai);
t3_write_reg(adapter, A_I2C_CFG, /* set for 80KHz */
V_I2C_CLKDIV(adapter->params.vpd.cclk / 80 - 1 ));
t3_write_reg(adapter, A_T3DBG_GPIO_EN,
ai->gpio_out | F_GPIO0_OEN | F_GPIO0_OUT_VAL);
t3_write_reg(adapter, A_MC5_DB_SERVER_INDEX, 0 );
t3_write_reg(adapter, A_SG_OCO_BASE, V_BASE1(0 xfff));
if (adapter->params.rev == 0 || !uses_xaui(adapter))
val |= F_ENRGMII;
/* Enable MAC clocks so we can access the registers */
t3_write_reg(adapter, A_XGM_PORT_CFG, val);
t3_read_reg(adapter, A_XGM_PORT_CFG);
val |= F_CLKDIVRESET_;
t3_write_reg(adapter, A_XGM_PORT_CFG, val);
t3_read_reg(adapter, A_XGM_PORT_CFG);
t3_write_reg(adapter, XGM_REG(A_XGM_PORT_CFG, 1 ), val);
t3_read_reg(adapter, A_XGM_PORT_CFG);
}
/*
* Reset the adapter .
* Older PCIe cards lose their config space during reset , PCI - X
* ones don ' t .
*/
int t3_reset_adapter(struct adapter *adapter)
{
int i, save_and_restore_pcie =
adapter->params.rev < T3_REV_B2 && is_pcie(adapter);
uint16_t devid = 0 ;
if (save_and_restore_pcie)
pci_save_state(adapter->pdev);
t3_write_reg(adapter, A_PL_RST, F_CRSTWRM | F_CRSTWRMMODE);
/*
* Delay . Give Some time to device to reset fully .
* XXX The delay time should be modified .
*/
for (i = 0 ; i < 10 ; i++) {
msleep(50 );
pci_read_config_word(adapter->pdev, 0 x00, &devid);
if (devid == 0 x1425)
break ;
}
if (devid != 0 x1425)
return -1 ;
if (save_and_restore_pcie)
pci_restore_state(adapter->pdev);
return 0 ;
}
static int init_parity(struct adapter *adap)
{
int i, err, addr;
if (t3_read_reg(adap, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
return -EBUSY;
for (err = i = 0 ; !err && i < 16 ; i++)
err = clear_sge_ctxt(adap, i, F_EGRESS);
for (i = 0 xfff0; !err && i <= 0 xffff; i++)
err = clear_sge_ctxt(adap, i, F_EGRESS);
for (i = 0 ; !err && i < SGE_QSETS; i++)
err = clear_sge_ctxt(adap, i, F_RESPONSEQ);
if (err)
return err;
t3_write_reg(adap, A_CIM_IBQ_DBG_DATA, 0 );
for (i = 0 ; i < 4 ; i++)
for (addr = 0 ; addr <= M_IBQDBGADDR; addr++) {
t3_write_reg(adap, A_CIM_IBQ_DBG_CFG, F_IBQDBGEN |
F_IBQDBGWR | V_IBQDBGQID(i) |
V_IBQDBGADDR(addr));
err = t3_wait_op_done(adap, A_CIM_IBQ_DBG_CFG,
F_IBQDBGBUSY, 0 , 2 , 1 );
if (err)
return err;
}
return 0 ;
}
/*
* Initialize adapter SW state for the various HW modules , set initial values
* for some adapter tunables , take PHYs out of reset , and initialize the MDIO
* interface .
*/
int t3_prep_adapter(struct adapter *adapter, const struct adapter_info *ai,
int reset)
{
int ret;
unsigned int i, j = -1 ;
get_pci_mode(adapter, &adapter->params.pci);
adapter->params.info = ai;
adapter->params.nports = ai->nports0 + ai->nports1;
adapter->params.chan_map = (!!ai->nports0) | (!!ai->nports1 << 1 );
adapter->params.rev = t3_read_reg(adapter, A_PL_REV);
/*
* We used to only run the " adapter check task " once a second if
* we had PHYs which didn ' t support interrupts ( we would check
* their link status once a second ) . Now we check other conditions
* in that routine which could potentially impose a very high
* interrupt load on the system . As such , we now always scan the
* adapter state once a second . . .
*/
adapter->params.linkpoll_period = 10 ;
adapter->params.stats_update_period = is_10G(adapter) ?
MAC_STATS_ACCUM_SECS : (MAC_STATS_ACCUM_SECS * 10 );
adapter->params.pci.vpd_cap_addr =
pci_find_capability(adapter->pdev, PCI_CAP_ID_VPD);
if (!adapter->params.pci.vpd_cap_addr)
return -ENODEV;
ret = get_vpd_params(adapter, &adapter->params.vpd);
if (ret < 0 )
return ret;
if (reset && t3_reset_adapter(adapter))
return -1 ;
t3_sge_prep(adapter, &adapter->params.sge);
if (adapter->params.vpd.mclk) {
struct tp_params *p = &adapter->params.tp;
mc7_prep(adapter, &adapter->pmrx, MC7_PMRX_BASE_ADDR, "PMRX" );
mc7_prep(adapter, &adapter->pmtx, MC7_PMTX_BASE_ADDR, "PMTX" );
mc7_prep(adapter, &adapter->cm, MC7_CM_BASE_ADDR, "CM" );
p->nchan = adapter->params.chan_map == 3 ? 2 : 1 ;
p->pmrx_size = t3_mc7_size(&adapter->pmrx);
p->pmtx_size = t3_mc7_size(&adapter->pmtx);
p->cm_size = t3_mc7_size(&adapter->cm);
p->chan_rx_size = p->pmrx_size / 2 ; /* only 1 Rx channel */
p->chan_tx_size = p->pmtx_size / p->nchan;
p->rx_pg_size = 64 * 1024 ;
p->tx_pg_size = is_10G(adapter) ? 64 * 1024 : 16 * 1024 ;
p->rx_num_pgs = pm_num_pages(p->chan_rx_size, p->rx_pg_size);
p->tx_num_pgs = pm_num_pages(p->chan_tx_size, p->tx_pg_size);
p->ntimer_qs = p->cm_size >= (128 << 20 ) ||
adapter->params.rev > 0 ? 12 : 6 ;
}
adapter->params.offload = t3_mc7_size(&adapter->pmrx) &&
t3_mc7_size(&adapter->pmtx) &&
t3_mc7_size(&adapter->cm);
if (is_offload(adapter)) {
adapter->params.mc5.nservers = DEFAULT_NSERVERS;
adapter->params.mc5.nfilters = adapter->params.rev > 0 ?
DEFAULT_NFILTERS : 0 ;
adapter->params.mc5.nroutes = 0 ;
t3_mc5_prep(adapter, &adapter->mc5, MC5_MODE_144_BIT);
init_mtus(adapter->params.mtus);
init_cong_ctrl(adapter->params.a_wnd, adapter->params.b_wnd);
}
early_hw_init(adapter, ai);
ret = init_parity(adapter);
if (ret)
return ret;
for_each_port(adapter, i) {
u8 hw_addr[6 ];
const struct port_type_info *pti;
struct port_info *p = adap2pinfo(adapter, i);
while (!adapter->params.vpd.port_type[++j])
;
pti = &port_types[adapter->params.vpd.port_type[j]];
if (!pti->phy_prep) {
CH_ALERT(adapter, "Invalid port type index %d\n" ,
adapter->params.vpd.port_type[j]);
return -EINVAL;
}
p->phy.mdio.dev = adapter->port[i];
ret = pti->phy_prep(&p->phy, adapter, ai->phy_base_addr + j,
ai->mdio_ops);
if (ret)
return ret;
mac_prep(&p->mac, adapter, j);
/*
* The VPD EEPROM stores the base Ethernet address for the
* card . A port ' s address is derived from the base by adding
* the port ' s index to the base ' s low octet .
*/
memcpy(hw_addr, adapter->params.vpd.eth_base, 5 );
hw_addr[5 ] = adapter->params.vpd.eth_base[5 ] + i;
eth_hw_addr_set(adapter->port[i], hw_addr);
init_link_config(&p->link_config, p->phy.caps);
p->phy.ops->power_down(&p->phy, 1 );
/*
* If the PHY doesn ' t support interrupts for link status
* changes , schedule a scan of the adapter links at least
* once a second .
*/
if (!(p->phy.caps & SUPPORTED_IRQ) &&
adapter->params.linkpoll_period > 10 )
adapter->params.linkpoll_period = 10 ;
}
return 0 ;
}
void t3_led_ready(struct adapter *adapter)
{
t3_set_reg_field(adapter, A_T3DBG_GPIO_EN, F_GPIO0_OUT_VAL,
F_GPIO0_OUT_VAL);
}
int t3_replay_prep_adapter(struct adapter *adapter)
{
const struct adapter_info *ai = adapter->params.info;
unsigned int i, j = -1 ;
int ret;
early_hw_init(adapter, ai);
ret = init_parity(adapter);
if (ret)
return ret;
for_each_port(adapter, i) {
const struct port_type_info *pti;
struct port_info *p = adap2pinfo(adapter, i);
while (!adapter->params.vpd.port_type[++j])
;
pti = &port_types[adapter->params.vpd.port_type[j]];
ret = pti->phy_prep(&p->phy, adapter, p->phy.mdio.prtad, NULL);
if (ret)
return ret;
p->phy.ops->power_down(&p->phy, 1 );
}
return 0 ;
}
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*Eine klare Vorstellung vom Zielzustand