mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-30 09:06:44 +07:00
756a6b03da
This also fixes bug in xmit path, where TX checksum offload state was used instead of skb->ip_summed to decide if the offload was needed. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
504 lines
15 KiB
C
504 lines
15 KiB
C
/*
|
|
* Copyright (C) 1999 - 2010 Intel Corporation.
|
|
* Copyright (C) 2010 OKI SEMICONDUCTOR Co., LTD.
|
|
*
|
|
* This code was derived from the Intel e1000e Linux driver.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; version 2 of the License.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#include "pch_gbe.h"
|
|
|
|
#define OPTION_UNSET -1
|
|
#define OPTION_DISABLED 0
|
|
#define OPTION_ENABLED 1
|
|
|
|
/**
|
|
* TxDescriptors - Transmit Descriptor Count
|
|
* @Valid Range: PCH_GBE_MIN_TXD - PCH_GBE_MAX_TXD
|
|
* @Default Value: PCH_GBE_DEFAULT_TXD
|
|
*/
|
|
static int TxDescriptors = OPTION_UNSET;
|
|
module_param(TxDescriptors, int, 0);
|
|
MODULE_PARM_DESC(TxDescriptors, "Number of transmit descriptors");
|
|
|
|
/**
|
|
* RxDescriptors -Receive Descriptor Count
|
|
* @Valid Range: PCH_GBE_MIN_RXD - PCH_GBE_MAX_RXD
|
|
* @Default Value: PCH_GBE_DEFAULT_RXD
|
|
*/
|
|
static int RxDescriptors = OPTION_UNSET;
|
|
module_param(RxDescriptors, int, 0);
|
|
MODULE_PARM_DESC(RxDescriptors, "Number of receive descriptors");
|
|
|
|
/**
|
|
* Speed - User Specified Speed Override
|
|
* @Valid Range: 0, 10, 100, 1000
|
|
* - 0: auto-negotiate at all supported speeds
|
|
* - 10: only link at 10 Mbps
|
|
* - 100: only link at 100 Mbps
|
|
* - 1000: only link at 1000 Mbps
|
|
* @Default Value: 0
|
|
*/
|
|
static int Speed = OPTION_UNSET;
|
|
module_param(Speed, int, 0);
|
|
MODULE_PARM_DESC(Speed, "Speed setting");
|
|
|
|
/**
|
|
* Duplex - User Specified Duplex Override
|
|
* @Valid Range: 0-2
|
|
* - 0: auto-negotiate for duplex
|
|
* - 1: only link at half duplex
|
|
* - 2: only link at full duplex
|
|
* @Default Value: 0
|
|
*/
|
|
static int Duplex = OPTION_UNSET;
|
|
module_param(Duplex, int, 0);
|
|
MODULE_PARM_DESC(Duplex, "Duplex setting");
|
|
|
|
#define HALF_DUPLEX 1
|
|
#define FULL_DUPLEX 2
|
|
|
|
/**
|
|
* AutoNeg - Auto-negotiation Advertisement Override
|
|
* @Valid Range: 0x01-0x0F, 0x20-0x2F
|
|
*
|
|
* The AutoNeg value is a bit mask describing which speed and duplex
|
|
* combinations should be advertised during auto-negotiation.
|
|
* The supported speed and duplex modes are listed below
|
|
*
|
|
* Bit 7 6 5 4 3 2 1 0
|
|
* Speed (Mbps) N/A N/A 1000 N/A 100 100 10 10
|
|
* Duplex Full Full Half Full Half
|
|
*
|
|
* @Default Value: 0x2F (copper)
|
|
*/
|
|
static int AutoNeg = OPTION_UNSET;
|
|
module_param(AutoNeg, int, 0);
|
|
MODULE_PARM_DESC(AutoNeg, "Advertised auto-negotiation setting");
|
|
|
|
#define PHY_ADVERTISE_10_HALF 0x0001
|
|
#define PHY_ADVERTISE_10_FULL 0x0002
|
|
#define PHY_ADVERTISE_100_HALF 0x0004
|
|
#define PHY_ADVERTISE_100_FULL 0x0008
|
|
#define PHY_ADVERTISE_1000_HALF 0x0010 /* Not used, just FYI */
|
|
#define PHY_ADVERTISE_1000_FULL 0x0020
|
|
#define PCH_AUTONEG_ADVERTISE_DEFAULT 0x2F
|
|
|
|
/**
|
|
* FlowControl - User Specified Flow Control Override
|
|
* @Valid Range: 0-3
|
|
* - 0: No Flow Control
|
|
* - 1: Rx only, respond to PAUSE frames but do not generate them
|
|
* - 2: Tx only, generate PAUSE frames but ignore them on receive
|
|
* - 3: Full Flow Control Support
|
|
* @Default Value: Read flow control settings from the EEPROM
|
|
*/
|
|
static int FlowControl = OPTION_UNSET;
|
|
module_param(FlowControl, int, 0);
|
|
MODULE_PARM_DESC(FlowControl, "Flow Control setting");
|
|
|
|
/*
|
|
* XsumRX - Receive Checksum Offload Enable/Disable
|
|
* @Valid Range: 0, 1
|
|
* - 0: disables all checksum offload
|
|
* - 1: enables receive IP/TCP/UDP checksum offload
|
|
* @Default Value: PCH_GBE_DEFAULT_RX_CSUM
|
|
*/
|
|
static int XsumRX = OPTION_UNSET;
|
|
module_param(XsumRX, int, 0);
|
|
MODULE_PARM_DESC(XsumRX, "Disable or enable Receive Checksum offload");
|
|
|
|
#define PCH_GBE_DEFAULT_RX_CSUM true /* trueorfalse */
|
|
|
|
/*
|
|
* XsumTX - Transmit Checksum Offload Enable/Disable
|
|
* @Valid Range: 0, 1
|
|
* - 0: disables all checksum offload
|
|
* - 1: enables transmit IP/TCP/UDP checksum offload
|
|
* @Default Value: PCH_GBE_DEFAULT_TX_CSUM
|
|
*/
|
|
static int XsumTX = OPTION_UNSET;
|
|
module_param(XsumTX, int, 0);
|
|
MODULE_PARM_DESC(XsumTX, "Disable or enable Transmit Checksum offload");
|
|
|
|
#define PCH_GBE_DEFAULT_TX_CSUM true /* trueorfalse */
|
|
|
|
/**
|
|
* pch_gbe_option - Force the MAC's flow control settings
|
|
* @hw: Pointer to the HW structure
|
|
* Returns
|
|
* 0: Successful.
|
|
* Negative value: Failed.
|
|
*/
|
|
struct pch_gbe_option {
|
|
enum { enable_option, range_option, list_option } type;
|
|
char *name;
|
|
char *err;
|
|
int def;
|
|
union {
|
|
struct { /* range_option info */
|
|
int min;
|
|
int max;
|
|
} r;
|
|
struct { /* list_option info */
|
|
int nr;
|
|
const struct pch_gbe_opt_list { int i; char *str; } *p;
|
|
} l;
|
|
} arg;
|
|
};
|
|
|
|
static const struct pch_gbe_opt_list speed_list[] = {
|
|
{ 0, "" },
|
|
{ SPEED_10, "" },
|
|
{ SPEED_100, "" },
|
|
{ SPEED_1000, "" }
|
|
};
|
|
|
|
static const struct pch_gbe_opt_list dplx_list[] = {
|
|
{ 0, "" },
|
|
{ HALF_DUPLEX, "" },
|
|
{ FULL_DUPLEX, "" }
|
|
};
|
|
|
|
static const struct pch_gbe_opt_list an_list[] =
|
|
#define AA "AutoNeg advertising "
|
|
{{ 0x01, AA "10/HD" },
|
|
{ 0x02, AA "10/FD" },
|
|
{ 0x03, AA "10/FD, 10/HD" },
|
|
{ 0x04, AA "100/HD" },
|
|
{ 0x05, AA "100/HD, 10/HD" },
|
|
{ 0x06, AA "100/HD, 10/FD" },
|
|
{ 0x07, AA "100/HD, 10/FD, 10/HD" },
|
|
{ 0x08, AA "100/FD" },
|
|
{ 0x09, AA "100/FD, 10/HD" },
|
|
{ 0x0a, AA "100/FD, 10/FD" },
|
|
{ 0x0b, AA "100/FD, 10/FD, 10/HD" },
|
|
{ 0x0c, AA "100/FD, 100/HD" },
|
|
{ 0x0d, AA "100/FD, 100/HD, 10/HD" },
|
|
{ 0x0e, AA "100/FD, 100/HD, 10/FD" },
|
|
{ 0x0f, AA "100/FD, 100/HD, 10/FD, 10/HD" },
|
|
{ 0x20, AA "1000/FD" },
|
|
{ 0x21, AA "1000/FD, 10/HD" },
|
|
{ 0x22, AA "1000/FD, 10/FD" },
|
|
{ 0x23, AA "1000/FD, 10/FD, 10/HD" },
|
|
{ 0x24, AA "1000/FD, 100/HD" },
|
|
{ 0x25, AA "1000/FD, 100/HD, 10/HD" },
|
|
{ 0x26, AA "1000/FD, 100/HD, 10/FD" },
|
|
{ 0x27, AA "1000/FD, 100/HD, 10/FD, 10/HD" },
|
|
{ 0x28, AA "1000/FD, 100/FD" },
|
|
{ 0x29, AA "1000/FD, 100/FD, 10/HD" },
|
|
{ 0x2a, AA "1000/FD, 100/FD, 10/FD" },
|
|
{ 0x2b, AA "1000/FD, 100/FD, 10/FD, 10/HD" },
|
|
{ 0x2c, AA "1000/FD, 100/FD, 100/HD" },
|
|
{ 0x2d, AA "1000/FD, 100/FD, 100/HD, 10/HD" },
|
|
{ 0x2e, AA "1000/FD, 100/FD, 100/HD, 10/FD" },
|
|
{ 0x2f, AA "1000/FD, 100/FD, 100/HD, 10/FD, 10/HD" }
|
|
};
|
|
|
|
static const struct pch_gbe_opt_list fc_list[] = {
|
|
{ PCH_GBE_FC_NONE, "Flow Control Disabled" },
|
|
{ PCH_GBE_FC_RX_PAUSE, "Flow Control Receive Only" },
|
|
{ PCH_GBE_FC_TX_PAUSE, "Flow Control Transmit Only" },
|
|
{ PCH_GBE_FC_FULL, "Flow Control Enabled" }
|
|
};
|
|
|
|
/**
|
|
* pch_gbe_validate_option - Validate option
|
|
* @value: value
|
|
* @opt: option
|
|
* @adapter: Board private structure
|
|
* Returns
|
|
* 0: Successful.
|
|
* Negative value: Failed.
|
|
*/
|
|
static int pch_gbe_validate_option(int *value,
|
|
const struct pch_gbe_option *opt,
|
|
struct pch_gbe_adapter *adapter)
|
|
{
|
|
if (*value == OPTION_UNSET) {
|
|
*value = opt->def;
|
|
return 0;
|
|
}
|
|
|
|
switch (opt->type) {
|
|
case enable_option:
|
|
switch (*value) {
|
|
case OPTION_ENABLED:
|
|
pr_debug("%s Enabled\n", opt->name);
|
|
return 0;
|
|
case OPTION_DISABLED:
|
|
pr_debug("%s Disabled\n", opt->name);
|
|
return 0;
|
|
}
|
|
break;
|
|
case range_option:
|
|
if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) {
|
|
pr_debug("%s set to %i\n", opt->name, *value);
|
|
return 0;
|
|
}
|
|
break;
|
|
case list_option: {
|
|
int i;
|
|
const struct pch_gbe_opt_list *ent;
|
|
|
|
for (i = 0; i < opt->arg.l.nr; i++) {
|
|
ent = &opt->arg.l.p[i];
|
|
if (*value == ent->i) {
|
|
if (ent->str[0] != '\0')
|
|
pr_debug("%s\n", ent->str);
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
BUG();
|
|
}
|
|
|
|
pr_debug("Invalid %s value specified (%i) %s\n",
|
|
opt->name, *value, opt->err);
|
|
*value = opt->def;
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* pch_gbe_check_copper_options - Range Checking for Link Options, Copper Version
|
|
* @adapter: Board private structure
|
|
*/
|
|
static void pch_gbe_check_copper_options(struct pch_gbe_adapter *adapter)
|
|
{
|
|
struct pch_gbe_hw *hw = &adapter->hw;
|
|
int speed, dplx;
|
|
|
|
{ /* Speed */
|
|
static const struct pch_gbe_option opt = {
|
|
.type = list_option,
|
|
.name = "Speed",
|
|
.err = "parameter ignored",
|
|
.def = 0,
|
|
.arg = { .l = { .nr = (int)ARRAY_SIZE(speed_list),
|
|
.p = speed_list } }
|
|
};
|
|
speed = Speed;
|
|
pch_gbe_validate_option(&speed, &opt, adapter);
|
|
}
|
|
{ /* Duplex */
|
|
static const struct pch_gbe_option opt = {
|
|
.type = list_option,
|
|
.name = "Duplex",
|
|
.err = "parameter ignored",
|
|
.def = 0,
|
|
.arg = { .l = { .nr = (int)ARRAY_SIZE(dplx_list),
|
|
.p = dplx_list } }
|
|
};
|
|
dplx = Duplex;
|
|
pch_gbe_validate_option(&dplx, &opt, adapter);
|
|
}
|
|
|
|
{ /* Autoneg */
|
|
static const struct pch_gbe_option opt = {
|
|
.type = list_option,
|
|
.name = "AutoNeg",
|
|
.err = "parameter ignored",
|
|
.def = PCH_AUTONEG_ADVERTISE_DEFAULT,
|
|
.arg = { .l = { .nr = (int)ARRAY_SIZE(an_list),
|
|
.p = an_list} }
|
|
};
|
|
if (speed || dplx) {
|
|
pr_debug("AutoNeg specified along with Speed or Duplex, AutoNeg parameter ignored\n");
|
|
hw->phy.autoneg_advertised = opt.def;
|
|
} else {
|
|
hw->phy.autoneg_advertised = AutoNeg;
|
|
pch_gbe_validate_option(
|
|
(int *)(&hw->phy.autoneg_advertised),
|
|
&opt, adapter);
|
|
}
|
|
}
|
|
|
|
switch (speed + dplx) {
|
|
case 0:
|
|
hw->mac.autoneg = hw->mac.fc_autoneg = 1;
|
|
if ((speed || dplx))
|
|
pr_debug("Speed and duplex autonegotiation enabled\n");
|
|
hw->mac.link_speed = SPEED_10;
|
|
hw->mac.link_duplex = DUPLEX_HALF;
|
|
break;
|
|
case HALF_DUPLEX:
|
|
pr_debug("Half Duplex specified without Speed\n");
|
|
pr_debug("Using Autonegotiation at Half Duplex only\n");
|
|
hw->mac.autoneg = hw->mac.fc_autoneg = 1;
|
|
hw->phy.autoneg_advertised = PHY_ADVERTISE_10_HALF |
|
|
PHY_ADVERTISE_100_HALF;
|
|
hw->mac.link_speed = SPEED_10;
|
|
hw->mac.link_duplex = DUPLEX_HALF;
|
|
break;
|
|
case FULL_DUPLEX:
|
|
pr_debug("Full Duplex specified without Speed\n");
|
|
pr_debug("Using Autonegotiation at Full Duplex only\n");
|
|
hw->mac.autoneg = hw->mac.fc_autoneg = 1;
|
|
hw->phy.autoneg_advertised = PHY_ADVERTISE_10_FULL |
|
|
PHY_ADVERTISE_100_FULL |
|
|
PHY_ADVERTISE_1000_FULL;
|
|
hw->mac.link_speed = SPEED_10;
|
|
hw->mac.link_duplex = DUPLEX_FULL;
|
|
break;
|
|
case SPEED_10:
|
|
pr_debug("10 Mbps Speed specified without Duplex\n");
|
|
pr_debug("Using Autonegotiation at 10 Mbps only\n");
|
|
hw->mac.autoneg = hw->mac.fc_autoneg = 1;
|
|
hw->phy.autoneg_advertised = PHY_ADVERTISE_10_HALF |
|
|
PHY_ADVERTISE_10_FULL;
|
|
hw->mac.link_speed = SPEED_10;
|
|
hw->mac.link_duplex = DUPLEX_HALF;
|
|
break;
|
|
case SPEED_10 + HALF_DUPLEX:
|
|
pr_debug("Forcing to 10 Mbps Half Duplex\n");
|
|
hw->mac.autoneg = hw->mac.fc_autoneg = 0;
|
|
hw->phy.autoneg_advertised = 0;
|
|
hw->mac.link_speed = SPEED_10;
|
|
hw->mac.link_duplex = DUPLEX_HALF;
|
|
break;
|
|
case SPEED_10 + FULL_DUPLEX:
|
|
pr_debug("Forcing to 10 Mbps Full Duplex\n");
|
|
hw->mac.autoneg = hw->mac.fc_autoneg = 0;
|
|
hw->phy.autoneg_advertised = 0;
|
|
hw->mac.link_speed = SPEED_10;
|
|
hw->mac.link_duplex = DUPLEX_FULL;
|
|
break;
|
|
case SPEED_100:
|
|
pr_debug("100 Mbps Speed specified without Duplex\n");
|
|
pr_debug("Using Autonegotiation at 100 Mbps only\n");
|
|
hw->mac.autoneg = hw->mac.fc_autoneg = 1;
|
|
hw->phy.autoneg_advertised = PHY_ADVERTISE_100_HALF |
|
|
PHY_ADVERTISE_100_FULL;
|
|
hw->mac.link_speed = SPEED_100;
|
|
hw->mac.link_duplex = DUPLEX_HALF;
|
|
break;
|
|
case SPEED_100 + HALF_DUPLEX:
|
|
pr_debug("Forcing to 100 Mbps Half Duplex\n");
|
|
hw->mac.autoneg = hw->mac.fc_autoneg = 0;
|
|
hw->phy.autoneg_advertised = 0;
|
|
hw->mac.link_speed = SPEED_100;
|
|
hw->mac.link_duplex = DUPLEX_HALF;
|
|
break;
|
|
case SPEED_100 + FULL_DUPLEX:
|
|
pr_debug("Forcing to 100 Mbps Full Duplex\n");
|
|
hw->mac.autoneg = hw->mac.fc_autoneg = 0;
|
|
hw->phy.autoneg_advertised = 0;
|
|
hw->mac.link_speed = SPEED_100;
|
|
hw->mac.link_duplex = DUPLEX_FULL;
|
|
break;
|
|
case SPEED_1000:
|
|
pr_debug("1000 Mbps Speed specified without Duplex\n");
|
|
goto full_duplex_only;
|
|
case SPEED_1000 + HALF_DUPLEX:
|
|
pr_debug("Half Duplex is not supported at 1000 Mbps\n");
|
|
/* fall through */
|
|
case SPEED_1000 + FULL_DUPLEX:
|
|
full_duplex_only:
|
|
pr_debug("Using Autonegotiation at 1000 Mbps Full Duplex only\n");
|
|
hw->mac.autoneg = hw->mac.fc_autoneg = 1;
|
|
hw->phy.autoneg_advertised = PHY_ADVERTISE_1000_FULL;
|
|
hw->mac.link_speed = SPEED_1000;
|
|
hw->mac.link_duplex = DUPLEX_FULL;
|
|
break;
|
|
default:
|
|
BUG();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* pch_gbe_check_options - Range Checking for Command Line Parameters
|
|
* @adapter: Board private structure
|
|
*/
|
|
void pch_gbe_check_options(struct pch_gbe_adapter *adapter)
|
|
{
|
|
struct pch_gbe_hw *hw = &adapter->hw;
|
|
struct net_device *dev = adapter->netdev;
|
|
int val;
|
|
|
|
{ /* Transmit Descriptor Count */
|
|
static const struct pch_gbe_option opt = {
|
|
.type = range_option,
|
|
.name = "Transmit Descriptors",
|
|
.err = "using default of "
|
|
__MODULE_STRING(PCH_GBE_DEFAULT_TXD),
|
|
.def = PCH_GBE_DEFAULT_TXD,
|
|
.arg = { .r = { .min = PCH_GBE_MIN_TXD,
|
|
.max = PCH_GBE_MAX_TXD } }
|
|
};
|
|
struct pch_gbe_tx_ring *tx_ring = adapter->tx_ring;
|
|
tx_ring->count = TxDescriptors;
|
|
pch_gbe_validate_option(&tx_ring->count, &opt, adapter);
|
|
tx_ring->count = roundup(tx_ring->count,
|
|
PCH_GBE_TX_DESC_MULTIPLE);
|
|
}
|
|
{ /* Receive Descriptor Count */
|
|
static const struct pch_gbe_option opt = {
|
|
.type = range_option,
|
|
.name = "Receive Descriptors",
|
|
.err = "using default of "
|
|
__MODULE_STRING(PCH_GBE_DEFAULT_RXD),
|
|
.def = PCH_GBE_DEFAULT_RXD,
|
|
.arg = { .r = { .min = PCH_GBE_MIN_RXD,
|
|
.max = PCH_GBE_MAX_RXD } }
|
|
};
|
|
struct pch_gbe_rx_ring *rx_ring = adapter->rx_ring;
|
|
rx_ring->count = RxDescriptors;
|
|
pch_gbe_validate_option(&rx_ring->count, &opt, adapter);
|
|
rx_ring->count = roundup(rx_ring->count,
|
|
PCH_GBE_RX_DESC_MULTIPLE);
|
|
}
|
|
{ /* Checksum Offload Enable/Disable */
|
|
static const struct pch_gbe_option opt = {
|
|
.type = enable_option,
|
|
.name = "Checksum Offload",
|
|
.err = "defaulting to Enabled",
|
|
.def = PCH_GBE_DEFAULT_RX_CSUM
|
|
};
|
|
val = XsumRX;
|
|
pch_gbe_validate_option(&val, &opt, adapter);
|
|
if (!val)
|
|
dev->features &= ~NETIF_F_RXCSUM;
|
|
}
|
|
{ /* Checksum Offload Enable/Disable */
|
|
static const struct pch_gbe_option opt = {
|
|
.type = enable_option,
|
|
.name = "Checksum Offload",
|
|
.err = "defaulting to Enabled",
|
|
.def = PCH_GBE_DEFAULT_TX_CSUM
|
|
};
|
|
val = XsumTX;
|
|
pch_gbe_validate_option(&val, &opt, adapter);
|
|
if (!val)
|
|
dev->features &= ~NETIF_F_ALL_CSUM;
|
|
}
|
|
{ /* Flow Control */
|
|
static const struct pch_gbe_option opt = {
|
|
.type = list_option,
|
|
.name = "Flow Control",
|
|
.err = "reading default settings from EEPROM",
|
|
.def = PCH_GBE_FC_DEFAULT,
|
|
.arg = { .l = { .nr = (int)ARRAY_SIZE(fc_list),
|
|
.p = fc_list } }
|
|
};
|
|
hw->mac.fc = FlowControl;
|
|
pch_gbe_validate_option((int *)(&hw->mac.fc),
|
|
&opt, adapter);
|
|
}
|
|
|
|
pch_gbe_check_copper_options(adapter);
|
|
}
|