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sfc: Add support for sub-10G speeds 

The SFC4000 has a separate MAC for use at sub-10G speeds.  Introduce
an efx_mac_operations structure with implementations for the two MACs.
Switch between the MACs as necessary.

PHY settings are independent of the MAC, so add get_settings() and
set_settings() to efx_phy_operations.  Also add macs field to indicate
which MACs the PHY is connected to.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Hutchings 2008-12-12 21:50:08 -08:00 committed by David S. Miller
parent 356eebb2b3
commit 177dfcd80f
16 changed files with 700 additions and 322 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/sfc/Makefile
View File

@ -1,5 +1,5 @@
sfc-y += efx.o falcon.o tx.o rx.o falcon_xmac.o \
selftest.o ethtool.o xfp_phy.o \
sfc-y += efx.o falcon.o tx.o rx.o falcon_gmac.o \
falcon_xmac.o selftest.o ethtool.o xfp_phy.o \
mdio_10g.o tenxpress.o boards.o sfe4001.o
sfc-$(CONFIG_SFC_MTD) += mtd.o

62
drivers/net/sfc/efx.c
View File

@ -27,7 +27,6 @@
#include "efx.h"
#include "mdio_10g.h"
#include "falcon.h"
#include "mac.h"
#define EFX_MAX_MTU (9 * 1024)
@ -575,10 +574,28 @@ void __efx_reconfigure_port(struct efx_nic *efx)
netif_addr_unlock_bh(efx->net_dev);
}
falcon_reconfigure_xmac(efx);
falcon_deconfigure_mac_wrapper(efx);
/* Reconfigure the PHY, disabling transmit in mac level loopback. */
if (LOOPBACK_INTERNAL(efx))
efx->phy_mode |= PHY_MODE_TX_DISABLED;
else
efx->phy_mode &= ~PHY_MODE_TX_DISABLED;
efx->phy_op->reconfigure(efx);
if (falcon_switch_mac(efx))
goto fail;
efx->mac_op->reconfigure(efx);
/* Inform kernel of loss/gain of carrier */
efx_link_status_changed(efx);
return;
fail:
EFX_ERR(efx, "failed to reconfigure MAC\n");
efx->phy_op->fini(efx);
efx->port_initialized = false;
}
/* Reinitialise the MAC to pick up new PHY settings, even if the port is
@ -648,18 +665,25 @@ static int efx_init_port(struct efx_nic *efx)
EFX_LOG(efx, "init port\n");
/* Initialise the MAC and PHY */
rc = falcon_init_xmac(efx);
rc = efx->phy_op->init(efx);
if (rc)
return rc;
efx->phy_op->reconfigure(efx);
mutex_lock(&efx->mac_lock);
rc = falcon_switch_mac(efx);
mutex_unlock(&efx->mac_lock);
if (rc)
goto fail;
efx->mac_op->reconfigure(efx);
efx->port_initialized = true;
efx->stats_enabled = true;
/* Reconfigure port to program MAC registers */
falcon_reconfigure_xmac(efx);
return 0;
fail:
efx->phy_op->fini(efx);
return rc;
}
/* Allow efx_reconfigure_port() to be scheduled, and close the window
@ -702,7 +726,7 @@ static void efx_fini_port(struct efx_nic *efx)
if (!efx->port_initialized)
return;
falcon_fini_xmac(efx);
efx->phy_op->fini(efx);
efx->port_initialized = false;
efx->link_up = false;
@ -1179,7 +1203,6 @@ static void efx_monitor(struct work_struct *data)
{
struct efx_nic *efx = container_of(data, struct efx_nic,
monitor_work.work);
int rc = 0;
EFX_TRACE(efx, "hardware monitor executing on CPU %d\n",
raw_smp_processor_id());
@ -1195,7 +1218,7 @@ static void efx_monitor(struct work_struct *data)
}
if (efx->port_enabled)
rc = falcon_check_xmac(efx);
efx->mac_op->check_hw(efx);
mutex_unlock(&efx->mac_lock);
queue_delayed_work(efx->workqueue, &efx->monitor_work,
@ -1331,7 +1354,7 @@ static struct net_device_stats *efx_net_stats(struct net_device *net_dev)
if (!spin_trylock(&efx->stats_lock))
return stats;
if (efx->stats_enabled) {
falcon_update_stats_xmac(efx);
efx->mac_op->update_stats(efx);
falcon_update_nic_stats(efx);
}
spin_unlock(&efx->stats_lock);
@ -1519,7 +1542,7 @@ static int efx_register_netdev(struct efx_nic *efx)
netif_carrier_off(efx->net_dev);
/* Clear MAC statistics */
falcon_update_stats_xmac(efx);
efx->mac_op->update_stats(efx);
memset(&efx->mac_stats, 0, sizeof(efx->mac_stats));
rc = register_netdev(net_dev);
@ -1575,8 +1598,6 @@ static void efx_unregister_netdev(struct efx_nic *efx)
* before reset. */
void efx_reset_down(struct efx_nic *efx, struct ethtool_cmd *ecmd)
{
int rc;
EFX_ASSERT_RESET_SERIALISED(efx);
/* The net_dev->get_stats handler is quite slow, and will fail
@ -1589,9 +1610,7 @@ void efx_reset_down(struct efx_nic *efx, struct ethtool_cmd *ecmd)
mutex_lock(&efx->mac_lock);
mutex_lock(&efx->spi_lock);
rc = falcon_xmac_get_settings(efx, ecmd);
if (rc)
EFX_ERR(efx, "could not back up PHY settings\n");
efx->phy_op->get_settings(efx, ecmd);
efx_fini_channels(efx);
}
@ -1616,7 +1635,7 @@ int efx_reset_up(struct efx_nic *efx, struct ethtool_cmd *ecmd, bool ok)
if (ok) {
efx_init_channels(efx);
if (falcon_xmac_set_settings(efx, ecmd))
if (efx->phy_op->set_settings(efx, ecmd))
EFX_ERR(efx, "could not restore PHY settings\n");
}
@ -1779,6 +1798,10 @@ int efx_port_dummy_op_int(struct efx_nic *efx)
void efx_port_dummy_op_void(struct efx_nic *efx) {}
void efx_port_dummy_op_blink(struct efx_nic *efx, bool blink) {}
static struct efx_mac_operations efx_dummy_mac_operations = {
.reconfigure = efx_port_dummy_op_void,
};
static struct efx_phy_operations efx_dummy_phy_operations = {
.init = efx_port_dummy_op_int,
.reconfigure = efx_port_dummy_op_void,
@ -1831,6 +1854,7 @@ static int efx_init_struct(struct efx_nic *efx, struct efx_nic_type *type,
spin_lock_init(&efx->netif_stop_lock);
spin_lock_init(&efx->stats_lock);
mutex_init(&efx->mac_lock);
efx->mac_op = &efx_dummy_mac_operations;
efx->phy_op = &efx_dummy_phy_operations;
efx->mii.dev = net_dev;
INIT_WORK(&efx->reconfigure_work, efx_reconfigure_work);

29
drivers/net/sfc/enum.h
View File

@ -1,6 +1,6 @@
/****************************************************************************
* Driver for Solarflare Solarstorm network controllers and boards
* Copyright 2007 Solarflare Communications Inc.
* Copyright 2007-2008 Solarflare Communications Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
@ -13,22 +13,24 @@
/**
* enum efx_loopback_mode - loopback modes
* @LOOPBACK_NONE: no loopback
* @LOOPBACK_XGMII: loopback within MAC at XGMII level
* @LOOPBACK_XGXS: loopback within MAC at XGXS level
* @LOOPBACK_XAUI: loopback within MAC at XAUI level
* @LOOPBACK_PHYXS: loopback within PHY at PHYXS level
* @LOOPBACK_PCS: loopback within PHY at PCS level
* @LOOPBACK_PMAPMD: loopback within PHY at PMAPMD level
* @LOOPBACK_GMAC: loopback within GMAC at unspecified level
* @LOOPBACK_XGMII: loopback within XMAC at XGMII level
* @LOOPBACK_XGXS: loopback within XMAC at XGXS level
* @LOOPBACK_XAUI: loopback within XMAC at XAUI level
* @LOOPBACK_GPHY: loopback within 1G PHY at unspecified level
* @LOOPBACK_PHYXS: loopback within 10G PHY at PHYXS level
* @LOOPBACK_PCS: loopback within 10G PHY at PCS level
* @LOOPBACK_PMAPMD: loopback within 10G PHY at PMAPMD level
* @LOOPBACK_NETWORK: reflecting loopback (even further than furthest!)
*/
/* Please keep in order and up-to-date w.r.t the following two #defines */
enum efx_loopback_mode {
LOOPBACK_NONE = 0,
LOOPBACK_MAC = 1,
LOOPBACK_GMAC = 1,
LOOPBACK_XGMII = 2,
LOOPBACK_XGXS = 3,
LOOPBACK_XAUI = 4,
LOOPBACK_PHY = 5,
LOOPBACK_GPHY = 5,
LOOPBACK_PHYXS = 6,
LOOPBACK_PCS = 7,
LOOPBACK_PMAPMD = 8,
@ -45,15 +47,16 @@ extern const char *efx_loopback_mode_names[];
LOOPBACK_MODE_NAME(efx->loopback_mode)
/* These loopbacks occur within the controller */
#define LOOPBACKS_10G_INTERNAL ((1 << LOOPBACK_XGMII)| \
(1 << LOOPBACK_XGXS) | \
(1 << LOOPBACK_XAUI))
#define LOOPBACKS_INTERNAL ((1 << LOOPBACK_GMAC) | \
(1 << LOOPBACK_XGMII)| \
(1 << LOOPBACK_XGXS) | \
(1 << LOOPBACK_XAUI))
#define LOOPBACK_MASK(_efx) \
(1 << (_efx)->loopback_mode)
#define LOOPBACK_INTERNAL(_efx) \
(!!(LOOPBACKS_10G_INTERNAL & LOOPBACK_MASK(_efx)))
(!!(LOOPBACKS_INTERNAL & LOOPBACK_MASK(_efx)))
#define LOOPBACK_OUT_OF(_from, _to, _mask) \
((LOOPBACK_MASK(_from) & (_mask)) && !(LOOPBACK_MASK(_to) & (_mask)))

38
drivers/net/sfc/ethtool.c
View File

@ -17,15 +17,14 @@
#include "ethtool.h"
#include "falcon.h"
#include "spi.h"
#include "mac.h"
const char *efx_loopback_mode_names[] = {
[LOOPBACK_NONE] = "NONE",
[LOOPBACK_MAC] = "MAC",
[LOOPBACK_GMAC] = "GMAC",
[LOOPBACK_XGMII] = "XGMII",
[LOOPBACK_XGXS] = "XGXS",
[LOOPBACK_XAUI] = "XAUI",
[LOOPBACK_PHY] = "PHY",
[LOOPBACK_GPHY] = "GPHY",
[LOOPBACK_PHYXS] = "PHYXS",
[LOOPBACK_PCS] = "PCS",
[LOOPBACK_PMAPMD] = "PMA/PMD",
@ -200,13 +199,15 @@ int efx_ethtool_get_settings(struct net_device *net_dev,
struct ethtool_cmd *ecmd)
{
struct efx_nic *efx = netdev_priv(net_dev);
int rc;
mutex_lock(&efx->mac_lock);
rc = falcon_xmac_get_settings(efx, ecmd);
efx->phy_op->get_settings(efx, ecmd);
mutex_unlock(&efx->mac_lock);
return rc;
/* Falcon GMAC does not support 1000Mbps HD */
ecmd->supported &= ~SUPPORTED_1000baseT_Half;
return 0;
}
/* This must be called with rtnl_lock held. */
@ -216,8 +217,15 @@ int efx_ethtool_set_settings(struct net_device *net_dev,
struct efx_nic *efx = netdev_priv(net_dev);
int rc;
/* Falcon GMAC does not support 1000Mbps HD */
if (ecmd->speed == SPEED_1000 && ecmd->duplex != DUPLEX_FULL) {
EFX_LOG(efx, "rejecting unsupported 1000Mbps HD"
" setting\n");
return -EINVAL;
}
mutex_lock(&efx->mac_lock);
rc = falcon_xmac_set_settings(efx, ecmd);
rc = efx->phy_op->set_settings(efx, ecmd);
mutex_unlock(&efx->mac_lock);
if (!rc)
efx_reconfigure_port(efx);
@ -362,10 +370,6 @@ static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
EFX_PORT_NAME, "phy", NULL);
/* Loopback tests */
efx_fill_test(n++, strings, data, &tests->loopback_speed,
EFX_PORT_NAME, "loopback.speed", NULL);
efx_fill_test(n++, strings, data, &tests->loopback_full_duplex,
EFX_PORT_NAME, "loopback.full_duplex", NULL);
for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
if (!(efx->loopback_modes & (1 << mode)))
continue;
@ -671,22 +675,14 @@ static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
{
struct efx_nic *efx = netdev_priv(net_dev);
enum efx_fc_type flow_control = efx->flow_control;
int rc;
flow_control &= ~(EFX_FC_RX | EFX_FC_TX | EFX_FC_AUTO);
flow_control |= pause->rx_pause ? EFX_FC_RX : 0;
flow_control |= pause->tx_pause ? EFX_FC_TX : 0;
flow_control |= pause->autoneg ? EFX_FC_AUTO : 0;
/* Try to push the pause parameters */
mutex_lock(&efx->mac_lock);
rc = falcon_xmac_set_pause(efx, flow_control);
mutex_unlock(&efx->mac_lock);
if (!rc)
efx_reconfigure_port(efx);
return rc;
efx_reconfigure_port(efx);
return 0;
}
static void efx_ethtool_get_pauseparam(struct net_device *net_dev,

179
drivers/net/sfc/falcon.c
View File

@ -1168,6 +1168,19 @@ void falcon_generate_test_event(struct efx_channel *channel, unsigned int magic)
falcon_generate_event(channel, &test_event);
}
void falcon_sim_phy_event(struct efx_nic *efx)
{
efx_qword_t phy_event;
EFX_POPULATE_QWORD_1(phy_event, EV_CODE, GLOBAL_EV_DECODE);
if (EFX_IS10G(efx))
EFX_SET_OWORD_FIELD(phy_event, XG_PHY_INTR, 1);
else
EFX_SET_OWORD_FIELD(phy_event, G_PHY0_INTR, 1);
falcon_generate_event(&efx->channel[0], &phy_event);
}
/**************************************************************************
*
* Flush handling
@ -1839,40 +1852,61 @@ int falcon_spi_write(const struct efx_spi_device *spi, loff_t start,
*
**************************************************************************
*/
void falcon_drain_tx_fifo(struct efx_nic *efx)
static int falcon_reset_macs(struct efx_nic *efx)
{
efx_oword_t temp;
efx_oword_t reg;
int count;
if ((falcon_rev(efx) < FALCON_REV_B0) ||
(efx->loopback_mode != LOOPBACK_NONE))
return;
if (falcon_rev(efx) < FALCON_REV_B0) {
/* It's not safe to use GLB_CTL_REG to reset the
* macs, so instead use the internal MAC resets
*/
if (!EFX_IS10G(efx)) {
EFX_POPULATE_OWORD_1(reg, GM_SW_RST, 1);
falcon_write(efx, &reg, GM_CFG1_REG);
udelay(1000);
falcon_read(efx, &temp, MAC0_CTRL_REG_KER);
/* There is no point in draining more than once */
if (EFX_OWORD_FIELD(temp, TXFIFO_DRAIN_EN_B0))
return;
EFX_POPULATE_OWORD_1(reg, GM_SW_RST, 0);
falcon_write(efx, &reg, GM_CFG1_REG);
udelay(1000);
return 0;
} else {
EFX_POPULATE_OWORD_1(reg, XM_CORE_RST, 1);
falcon_write(efx, &reg, XM_GLB_CFG_REG);
for (count = 0; count < 10000; count++) {
falcon_read(efx, &reg, XM_GLB_CFG_REG);
if (EFX_OWORD_FIELD(reg, XM_CORE_RST) == 0)
return 0;
udelay(10);
}
EFX_ERR(efx, "timed out waiting for XMAC core reset\n");
return -ETIMEDOUT;
}
}
/* MAC stats will fail whilst the TX fifo is draining. Serialise
* the drain sequence with the statistics fetch */
spin_lock(&efx->stats_lock);
EFX_SET_OWORD_FIELD(temp, TXFIFO_DRAIN_EN_B0, 1);
falcon_write(efx, &temp, MAC0_CTRL_REG_KER);
falcon_read(efx, &reg, MAC0_CTRL_REG_KER);
EFX_SET_OWORD_FIELD(reg, TXFIFO_DRAIN_EN_B0, 1);
falcon_write(efx, &reg, MAC0_CTRL_REG_KER);
/* Reset the MAC and EM block. */
falcon_read(efx, &temp, GLB_CTL_REG_KER);
EFX_SET_OWORD_FIELD(temp, RST_XGTX, 1);
EFX_SET_OWORD_FIELD(temp, RST_XGRX, 1);
EFX_SET_OWORD_FIELD(temp, RST_EM, 1);
falcon_write(efx, &temp, GLB_CTL_REG_KER);
falcon_read(efx, &reg, GLB_CTL_REG_KER);
EFX_SET_OWORD_FIELD(reg, RST_XGTX, 1);
EFX_SET_OWORD_FIELD(reg, RST_XGRX, 1);
EFX_SET_OWORD_FIELD(reg, RST_EM, 1);
falcon_write(efx, &reg, GLB_CTL_REG_KER);
count = 0;
while (1) {
falcon_read(efx, &temp, GLB_CTL_REG_KER);
if (!EFX_OWORD_FIELD(temp, RST_XGTX) &&
!EFX_OWORD_FIELD(temp, RST_XGRX) &&
!EFX_OWORD_FIELD(temp, RST_EM)) {
falcon_read(efx, &reg, GLB_CTL_REG_KER);
if (!EFX_OWORD_FIELD(reg, RST_XGTX) &&
!EFX_OWORD_FIELD(reg, RST_XGRX) &&
!EFX_OWORD_FIELD(reg, RST_EM)) {
EFX_LOG(efx, "Completed MAC reset after %d loops\n",
count);
break;
@ -1889,21 +1923,39 @@ void falcon_drain_tx_fifo(struct efx_nic *efx)
/* If we've reset the EM block and the link is up, then
* we'll have to kick the XAUI link so the PHY can recover */
if (efx->link_up && EFX_WORKAROUND_5147(efx))
if (efx->link_up && EFX_IS10G(efx) && EFX_WORKAROUND_5147(efx))
falcon_reset_xaui(efx);
return 0;
}
void falcon_drain_tx_fifo(struct efx_nic *efx)
{
efx_oword_t reg;
if ((falcon_rev(efx) < FALCON_REV_B0) ||
(efx->loopback_mode != LOOPBACK_NONE))
return;
falcon_read(efx, &reg, MAC0_CTRL_REG_KER);
/* There is no point in draining more than once */
if (EFX_OWORD_FIELD(reg, TXFIFO_DRAIN_EN_B0))
return;
falcon_reset_macs(efx);
}
void falcon_deconfigure_mac_wrapper(struct efx_nic *efx)
{
efx_oword_t temp;
efx_oword_t reg;
if (falcon_rev(efx) < FALCON_REV_B0)
return;
/* Isolate the MAC -> RX */
falcon_read(efx, &temp, RX_CFG_REG_KER);
EFX_SET_OWORD_FIELD(temp, RX_INGR_EN_B0, 0);
falcon_write(efx, &temp, RX_CFG_REG_KER);
falcon_read(efx, &reg, RX_CFG_REG_KER);
EFX_SET_OWORD_FIELD(reg, RX_INGR_EN_B0, 0);
falcon_write(efx, &reg, RX_CFG_REG_KER);
if (!efx->link_up)
falcon_drain_tx_fifo(efx);
@ -2030,7 +2082,8 @@ static int falcon_gmii_wait(struct efx_nic *efx)
efx_dword_t md_stat;
int count;
for (count = 0; count < 1000; count++) { /* wait upto 10ms */
/* wait upto 50ms - taken max from datasheet */
for (count = 0; count < 5000; count++) {
falcon_readl(efx, &md_stat, MD_STAT_REG_KER);
if (EFX_DWORD_FIELD(md_stat, MD_BSY) == 0) {
if (EFX_DWORD_FIELD(md_stat, MD_LNFL) != 0 ||
@ -2206,10 +2259,59 @@ static int falcon_probe_phy(struct efx_nic *efx)
return -1;
}
efx->loopback_modes = LOOPBACKS_10G_INTERNAL | efx->phy_op->loopbacks;
if (efx->phy_op->macs & EFX_XMAC)
efx->loopback_modes |= ((1 << LOOPBACK_XGMII) |
(1 << LOOPBACK_XGXS) |
(1 << LOOPBACK_XAUI));
if (efx->phy_op->macs & EFX_GMAC)
efx->loopback_modes |= (1 << LOOPBACK_GMAC);
efx->loopback_modes |= efx->phy_op->loopbacks;
return 0;
}
int falcon_switch_mac(struct efx_nic *efx)
{
struct efx_mac_operations *old_mac_op = efx->mac_op;
efx_oword_t nic_stat;
unsigned strap_val;
/* Internal loopbacks override the phy speed setting */
if (efx->loopback_mode == LOOPBACK_GMAC) {
efx->link_speed = 1000;
efx->link_fd = true;
} else if (LOOPBACK_INTERNAL(efx)) {
efx->link_speed = 10000;
efx->link_fd = true;
}
efx->mac_op = (EFX_IS10G(efx) ?
&falcon_xmac_operations : &falcon_gmac_operations);
if (old_mac_op == efx->mac_op)
return 0;
WARN_ON(!mutex_is_locked(&efx->mac_lock));
/* Not all macs support a mac-level link state */
efx->mac_up = true;
falcon_read(efx, &nic_stat, NIC_STAT_REG);
strap_val = EFX_IS10G(efx) ? 5 : 3;
if (falcon_rev(efx) >= FALCON_REV_B0) {
EFX_SET_OWORD_FIELD(nic_stat, EE_STRAP_EN, 1);
EFX_SET_OWORD_FIELD(nic_stat, EE_STRAP_OVR, strap_val);
falcon_write(efx, &nic_stat, NIC_STAT_REG);
} else {
/* Falcon A1 does not support 1G/10G speed switching
* and must not be used with a PHY that does. */
BUG_ON(EFX_OWORD_FIELD(nic_stat, STRAP_PINS) != strap_val);
}
EFX_LOG(efx, "selected %cMAC\n", EFX_IS10G(efx) ? 'X' : 'G');
return falcon_reset_macs(efx);
}
/* This call is responsible for hooking in the MAC and PHY operations */
int falcon_probe_port(struct efx_nic *efx)
{
@ -2362,6 +2464,10 @@ static struct {
EFX_OWORD32(0x000003FF, 0x00000000, 0x00000000, 0x00000000) },
{ DP_CTRL_REG,
EFX_OWORD32(0x00000FFF, 0x00000000, 0x00000000, 0x00000000) },
{ GM_CFG2_REG,
EFX_OWORD32(0x00007337, 0x00000000, 0x00000000, 0x00000000) },
{ GMF_CFG0_REG,
EFX_OWORD32(0x00001F1F, 0x00000000, 0x00000000, 0x00000000) },
{ XM_GLB_CFG_REG,
EFX_OWORD32(0x00000C68, 0x00000000, 0x00000000, 0x00000000) },
{ XM_TX_CFG_REG,
@ -2687,6 +2793,7 @@ static int falcon_probe_nvconfig(struct efx_nic *efx)
static int falcon_probe_nic_variant(struct efx_nic *efx)
{
efx_oword_t altera_build;
efx_oword_t nic_stat;
falcon_read(efx, &altera_build, ALTERA_BUILD_REG_KER);
if (EFX_OWORD_FIELD(altera_build, VER_ALL)) {
@ -2694,27 +2801,20 @@ static int falcon_probe_nic_variant(struct efx_nic *efx)
return -ENODEV;
}
falcon_read(efx, &nic_stat, NIC_STAT_REG);
switch (falcon_rev(efx)) {
case FALCON_REV_A0:
case 0xff:
EFX_ERR(efx, "Falcon rev A0 not supported\n");
return -ENODEV;
case FALCON_REV_A1:{
efx_oword_t nic_stat;
falcon_read(efx, &nic_stat, NIC_STAT_REG);
case FALCON_REV_A1:
if (EFX_OWORD_FIELD(nic_stat, STRAP_PCIE) == 0) {
EFX_ERR(efx, "Falcon rev A1 PCI-X not supported\n");
return -ENODEV;
}
if (!EFX_OWORD_FIELD(nic_stat, STRAP_10G)) {
EFX_ERR(efx, "1G mode not supported\n");
return -ENODEV;
}
break;
}
case FALCON_REV_B0:
break;
@ -2724,6 +2824,9 @@ static int falcon_probe_nic_variant(struct efx_nic *efx)
return -ENODEV;
}
/* Initial assumed speed */
efx->link_speed = EFX_OWORD_FIELD(nic_stat, STRAP_10G) ? 10000 : 1000;
return 0;
}

3
drivers/net/sfc/falcon.h
View File

@ -12,6 +12,7 @@
#define EFX_FALCON_H
#include "net_driver.h"
#include "efx.h"
/*
* Falcon hardware control
@ -65,6 +66,7 @@ extern int falcon_probe_port(struct efx_nic *efx);
extern void falcon_remove_port(struct efx_nic *efx);
/* MAC/PHY */
extern int falcon_switch_mac(struct efx_nic *efx);
extern bool falcon_xaui_link_ok(struct efx_nic *efx);
extern int falcon_dma_stats(struct efx_nic *efx,
unsigned int done_offset);
@ -77,6 +79,7 @@ extern int falcon_init_interrupt(struct efx_nic *efx);
extern void falcon_enable_interrupts(struct efx_nic *efx);
extern void falcon_generate_test_event(struct efx_channel *channel,
unsigned int magic);
extern void falcon_sim_phy_event(struct efx_nic *efx);
extern void falcon_generate_interrupt(struct efx_nic *efx);
extern void falcon_set_int_moderation(struct efx_channel *channel);
extern void falcon_disable_interrupts(struct efx_nic *efx);

233
drivers/net/sfc/falcon_gmac.c Normal file
View File

@ -0,0 +1,233 @@
/****************************************************************************
* Driver for Solarflare Solarstorm network controllers and boards
* Copyright 2005-2006 Fen Systems Ltd.
* Copyright 2006-2008 Solarflare Communications Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation, incorporated herein by reference.
*/
#include <linux/delay.h>
#include "net_driver.h"
#include "efx.h"
#include "falcon.h"
#include "mac.h"
#include "falcon_hwdefs.h"
#include "falcon_io.h"
#include "gmii.h"
/**************************************************************************
*
* MAC operations
*
*************************************************************************/
static void falcon_reconfigure_gmac(struct efx_nic *efx)
{
bool loopback, tx_fc, rx_fc, bytemode;
int if_mode;
unsigned int max_frame_len;
efx_oword_t reg;
/* Configuration register 1 */
tx_fc = (efx->flow_control & EFX_FC_TX) || !efx->link_fd;
rx_fc = !!(efx->flow_control & EFX_FC_RX);
loopback = (efx->loopback_mode == LOOPBACK_GMAC);
bytemode = (efx->link_speed == 1000);
EFX_POPULATE_OWORD_5(reg,
GM_LOOP, loopback,
GM_TX_EN, 1,
GM_TX_FC_EN, tx_fc,
GM_RX_EN, 1,
GM_RX_FC_EN, rx_fc);
falcon_write(efx, &reg, GM_CFG1_REG);
udelay(10);
/* Configuration register 2 */
if_mode = (bytemode) ? 2 : 1;
EFX_POPULATE_OWORD_5(reg,
GM_IF_MODE, if_mode,
GM_PAD_CRC_EN, 1,
GM_LEN_CHK, 1,
GM_FD, efx->link_fd,
GM_PAMBL_LEN, 0x7/*datasheet recommended */);
falcon_write(efx, &reg, GM_CFG2_REG);
udelay(10);
/* Max frame len register */
max_frame_len = EFX_MAX_FRAME_LEN(efx->net_dev->mtu);
EFX_POPULATE_OWORD_1(reg, GM_MAX_FLEN, max_frame_len);
falcon_write(efx, &reg, GM_MAX_FLEN_REG);
udelay(10);
/* FIFO configuration register 0 */
EFX_POPULATE_OWORD_5(reg,
GMF_FTFENREQ, 1,
GMF_STFENREQ, 1,
GMF_FRFENREQ, 1,
GMF_SRFENREQ, 1,
GMF_WTMENREQ, 1);
falcon_write(efx, &reg, GMF_CFG0_REG);
udelay(10);
/* FIFO configuration register 1 */
EFX_POPULATE_OWORD_2(reg,
GMF_CFGFRTH, 0x12,
GMF_CFGXOFFRTX, 0xffff);
falcon_write(efx, &reg, GMF_CFG1_REG);
udelay(10);
/* FIFO configuration register 2 */
EFX_POPULATE_OWORD_2(reg,
GMF_CFGHWM, 0x3f,
GMF_CFGLWM, 0xa);
falcon_write(efx, &reg, GMF_CFG2_REG);
udelay(10);
/* FIFO configuration register 3 */
EFX_POPULATE_OWORD_2(reg,
GMF_CFGHWMFT, 0x1c,
GMF_CFGFTTH, 0x08);
falcon_write(efx, &reg, GMF_CFG3_REG);
udelay(10);
/* FIFO configuration register 4 */
EFX_POPULATE_OWORD_1(reg, GMF_HSTFLTRFRM_PAUSE, 1);
falcon_write(efx, &reg, GMF_CFG4_REG);
udelay(10);
/* FIFO configuration register 5 */
falcon_read(efx, &reg, GMF_CFG5_REG);
EFX_SET_OWORD_FIELD(reg, GMF_CFGBYTMODE, bytemode);
EFX_SET_OWORD_FIELD(reg, GMF_CFGHDPLX, !efx->link_fd);
EFX_SET_OWORD_FIELD(reg, GMF_HSTDRPLT64, !efx->link_fd);
EFX_SET_OWORD_FIELD(reg, GMF_HSTFLTRFRMDC_PAUSE, 0);
falcon_write(efx, &reg, GMF_CFG5_REG);
udelay(10);
/* MAC address */
EFX_POPULATE_OWORD_4(reg,
GM_HWADDR_5, efx->net_dev->dev_addr[5],
GM_HWADDR_4, efx->net_dev->dev_addr[4],
GM_HWADDR_3, efx->net_dev->dev_addr[3],
GM_HWADDR_2, efx->net_dev->dev_addr[2]);
falcon_write(efx, &reg, GM_ADR1_REG);
udelay(10);
EFX_POPULATE_OWORD_2(reg,
GM_HWADDR_1, efx->net_dev->dev_addr[1],
GM_HWADDR_0, efx->net_dev->dev_addr[0]);
falcon_write(efx, &reg, GM_ADR2_REG);
udelay(10);
falcon_reconfigure_mac_wrapper(efx);
}
static void falcon_update_stats_gmac(struct efx_nic *efx)
{
struct efx_mac_stats *mac_stats = &efx->mac_stats;
unsigned long old_rx_pause, old_tx_pause;
unsigned long new_rx_pause, new_tx_pause;
int rc;
rc = falcon_dma_stats(efx, GDmaDone_offset);
if (rc)
return;
/* Pause frames are erroneously counted as errors (SFC bug 3269) */
old_rx_pause = mac_stats->rx_pause;
old_tx_pause = mac_stats->tx_pause;
/* Update MAC stats from DMAed values */
FALCON_STAT(efx, GRxGoodOct, rx_good_bytes);
FALCON_STAT(efx, GRxBadOct, rx_bad_bytes);
FALCON_STAT(efx, GRxMissPkt, rx_missed);
FALCON_STAT(efx, GRxFalseCRS, rx_false_carrier);
FALCON_STAT(efx, GRxPausePkt, rx_pause);
FALCON_STAT(efx, GRxBadPkt, rx_bad);
FALCON_STAT(efx, GRxUcastPkt, rx_unicast);
FALCON_STAT(efx, GRxMcastPkt, rx_multicast);
FALCON_STAT(efx, GRxBcastPkt, rx_broadcast);
FALCON_STAT(efx, GRxGoodLt64Pkt, rx_good_lt64);
FALCON_STAT(efx, GRxBadLt64Pkt, rx_bad_lt64);
FALCON_STAT(efx, GRx64Pkt, rx_64);
FALCON_STAT(efx, GRx65to127Pkt, rx_65_to_127);
FALCON_STAT(efx, GRx128to255Pkt, rx_128_to_255);
FALCON_STAT(efx, GRx256to511Pkt, rx_256_to_511);
FALCON_STAT(efx, GRx512to1023Pkt, rx_512_to_1023);
FALCON_STAT(efx, GRx1024to15xxPkt, rx_1024_to_15xx);
FALCON_STAT(efx, GRx15xxtoJumboPkt, rx_15xx_to_jumbo);
FALCON_STAT(efx, GRxGtJumboPkt, rx_gtjumbo);
FALCON_STAT(efx, GRxFcsErr64to15xxPkt, rx_bad_64_to_15xx);
FALCON_STAT(efx, GRxFcsErr15xxtoJumboPkt, rx_bad_15xx_to_jumbo);
FALCON_STAT(efx, GRxFcsErrGtJumboPkt, rx_bad_gtjumbo);
FALCON_STAT(efx, GTxGoodBadOct, tx_bytes);
FALCON_STAT(efx, GTxGoodOct, tx_good_bytes);
FALCON_STAT(efx, GTxSglColPkt, tx_single_collision);
FALCON_STAT(efx, GTxMultColPkt, tx_multiple_collision);
FALCON_STAT(efx, GTxExColPkt, tx_excessive_collision);
FALCON_STAT(efx, GTxDefPkt, tx_deferred);
FALCON_STAT(efx, GTxLateCol, tx_late_collision);
FALCON_STAT(efx, GTxExDefPkt, tx_excessive_deferred);
FALCON_STAT(efx, GTxPausePkt, tx_pause);
FALCON_STAT(efx, GTxBadPkt, tx_bad);
FALCON_STAT(efx, GTxUcastPkt, tx_unicast);
FALCON_STAT(efx, GTxMcastPkt, tx_multicast);
FALCON_STAT(efx, GTxBcastPkt, tx_broadcast);
FALCON_STAT(efx, GTxLt64Pkt, tx_lt64);
FALCON_STAT(efx, GTx64Pkt, tx_64);
FALCON_STAT(efx, GTx65to127Pkt, tx_65_to_127);
FALCON_STAT(efx, GTx128to255Pkt, tx_128_to_255);
FALCON_STAT(efx, GTx256to511Pkt, tx_256_to_511);
FALCON_STAT(efx, GTx512to1023Pkt, tx_512_to_1023);
FALCON_STAT(efx, GTx1024to15xxPkt, tx_1024_to_15xx);
FALCON_STAT(efx, GTx15xxtoJumboPkt, tx_15xx_to_jumbo);
FALCON_STAT(efx, GTxGtJumboPkt, tx_gtjumbo);
FALCON_STAT(efx, GTxNonTcpUdpPkt, tx_non_tcpudp);
FALCON_STAT(efx, GTxMacSrcErrPkt, tx_mac_src_error);
FALCON_STAT(efx, GTxIpSrcErrPkt, tx_ip_src_error);
/* Pause frames are erroneously counted as errors (SFC bug 3269) */
new_rx_pause = mac_stats->rx_pause;
new_tx_pause = mac_stats->tx_pause;
mac_stats->rx_bad -= (new_rx_pause - old_rx_pause);
mac_stats->tx_bad -= (new_tx_pause - old_tx_pause);
/* Derive stats that the MAC doesn't provide directly */
mac_stats->tx_bad_bytes =
mac_stats->tx_bytes - mac_stats->tx_good_bytes;
mac_stats->tx_packets =
mac_stats->tx_lt64 + mac_stats->tx_64 +
mac_stats->tx_65_to_127 + mac_stats->tx_128_to_255 +
mac_stats->tx_256_to_511 + mac_stats->tx_512_to_1023 +
mac_stats->tx_1024_to_15xx + mac_stats->tx_15xx_to_jumbo +
mac_stats->tx_gtjumbo;
mac_stats->tx_collision =
mac_stats->tx_single_collision +
mac_stats->tx_multiple_collision +
mac_stats->tx_excessive_collision +
mac_stats->tx_late_collision;
mac_stats->rx_bytes =
mac_stats->rx_good_bytes + mac_stats->rx_bad_bytes;
mac_stats->rx_packets =
mac_stats->rx_good_lt64 + mac_stats->rx_bad_lt64 +
mac_stats->rx_64 + mac_stats->rx_65_to_127 +
mac_stats->rx_128_to_255 + mac_stats->rx_256_to_511 +
mac_stats->rx_512_to_1023 + mac_stats->rx_1024_to_15xx +
mac_stats->rx_15xx_to_jumbo + mac_stats->rx_gtjumbo;
mac_stats->rx_good = mac_stats->rx_packets - mac_stats->rx_bad;
mac_stats->rx_lt64 = mac_stats->rx_good_lt64 + mac_stats->rx_bad_lt64;
}
static int falcon_check_gmac(struct efx_nic *efx)
{
return efx->phy_op->check_hw(efx);
}
struct efx_mac_operations falcon_gmac_operations = {
.reconfigure = falcon_reconfigure_gmac,
.update_stats = falcon_update_stats_gmac,
.check_hw = falcon_check_gmac,
};

156
drivers/net/sfc/falcon_hwdefs.h
View File

@ -111,12 +111,18 @@
/* NIC status register */
#define NIC_STAT_REG 0x0200
#define EE_STRAP_EN_LBN 31
#define EE_STRAP_EN_WIDTH 1
#define EE_STRAP_OVR_LBN 24
#define EE_STRAP_OVR_WIDTH 4
#define ONCHIP_SRAM_LBN 16
#define ONCHIP_SRAM_WIDTH 1
#define SF_PRST_LBN 9
#define SF_PRST_WIDTH 1
#define EE_PRST_LBN 8
#define EE_PRST_WIDTH 1
#define STRAP_PINS_LBN 0
#define STRAP_PINS_WIDTH 3
/* These bit definitions are extrapolated from the list of numerical
* values for STRAP_PINS.
*/
@ -492,6 +498,107 @@
#define MAC_MCAST_HASH_REG0_KER 0xca0
#define MAC_MCAST_HASH_REG1_KER 0xcb0
/* GMAC configuration register 1 */
#define GM_CFG1_REG 0xe00
#define GM_SW_RST_LBN 31
#define GM_SW_RST_WIDTH 1
#define GM_LOOP_LBN 8
#define GM_LOOP_WIDTH 1
#define GM_RX_FC_EN_LBN 5
#define GM_RX_FC_EN_WIDTH 1
#define GM_TX_FC_EN_LBN 4
#define GM_TX_FC_EN_WIDTH 1
#define GM_RX_EN_LBN 2
#define GM_RX_EN_WIDTH 1
#define GM_TX_EN_LBN 0
#define GM_TX_EN_WIDTH 1
/* GMAC configuration register 2 */
#define GM_CFG2_REG 0xe10
#define GM_PAMBL_LEN_LBN 12
#define GM_PAMBL_LEN_WIDTH 4
#define GM_IF_MODE_LBN 8
#define GM_IF_MODE_WIDTH 2
#define GM_LEN_CHK_LBN 4
#define GM_LEN_CHK_WIDTH 1
#define GM_PAD_CRC_EN_LBN 2
#define GM_PAD_CRC_EN_WIDTH 1
#define GM_FD_LBN 0
#define GM_FD_WIDTH 1
/* GMAC maximum frame length register */
#define GM_MAX_FLEN_REG 0xe40
#define GM_MAX_FLEN_LBN 0
#define GM_MAX_FLEN_WIDTH 16
/* GMAC station address register 1 */
#define GM_ADR1_REG 0xf00
#define GM_HWADDR_5_LBN 24
#define GM_HWADDR_5_WIDTH 8
#define GM_HWADDR_4_LBN 16
#define GM_HWADDR_4_WIDTH 8
#define GM_HWADDR_3_LBN 8
#define GM_HWADDR_3_WIDTH 8
#define GM_HWADDR_2_LBN 0
#define GM_HWADDR_2_WIDTH 8
/* GMAC station address register 2 */
#define GM_ADR2_REG 0xf10
#define GM_HWADDR_1_LBN 24
#define GM_HWADDR_1_WIDTH 8
#define GM_HWADDR_0_LBN 16
#define GM_HWADDR_0_WIDTH 8
/* GMAC FIFO configuration register 0 */
#define GMF_CFG0_REG 0xf20
#define GMF_FTFENREQ_LBN 12
#define GMF_FTFENREQ_WIDTH 1
#define GMF_STFENREQ_LBN 11
#define GMF_STFENREQ_WIDTH 1
#define GMF_FRFENREQ_LBN 10
#define GMF_FRFENREQ_WIDTH 1
#define GMF_SRFENREQ_LBN 9
#define GMF_SRFENREQ_WIDTH 1
#define GMF_WTMENREQ_LBN 8
#define GMF_WTMENREQ_WIDTH 1
/* GMAC FIFO configuration register 1 */
#define GMF_CFG1_REG 0xf30
#define GMF_CFGFRTH_LBN 16
#define GMF_CFGFRTH_WIDTH 5
#define GMF_CFGXOFFRTX_LBN 0
#define GMF_CFGXOFFRTX_WIDTH 16
/* GMAC FIFO configuration register 2 */
#define GMF_CFG2_REG 0xf40
#define GMF_CFGHWM_LBN 16
#define GMF_CFGHWM_WIDTH 6
#define GMF_CFGLWM_LBN 0
#define GMF_CFGLWM_WIDTH 6
/* GMAC FIFO configuration register 3 */
#define GMF_CFG3_REG 0xf50
#define GMF_CFGHWMFT_LBN 16
#define GMF_CFGHWMFT_WIDTH 6
#define GMF_CFGFTTH_LBN 0
#define GMF_CFGFTTH_WIDTH 6
/* GMAC FIFO configuration register 4 */
#define GMF_CFG4_REG 0xf60
#define GMF_HSTFLTRFRM_PAUSE_LBN 12
#define GMF_HSTFLTRFRM_PAUSE_WIDTH 12
/* GMAC FIFO configuration register 5 */
#define GMF_CFG5_REG 0xf70
#define GMF_CFGHDPLX_LBN 22
#define GMF_CFGHDPLX_WIDTH 1
#define GMF_CFGBYTMODE_LBN 19
#define GMF_CFGBYTMODE_WIDTH 1
#define GMF_HSTDRPLT64_LBN 18
#define GMF_HSTDRPLT64_WIDTH 1
#define GMF_HSTFLTRFRMDC_PAUSE_LBN 12
#define GMF_HSTFLTRFRMDC_PAUSE_WIDTH 1
/* XGMAC address register low */
#define XM_ADR_LO_REG 0x1200
#define XM_ADR_3_LBN 24
@ -962,54 +1069,103 @@
**************************************************************************
*
*/
#define GRxGoodOct_offset 0x0
#define GRxGoodOct_WIDTH 48
#define GRxBadOct_offset 0x8
#define GRxBadOct_WIDTH 48
#define GRxMissPkt_offset 0x10
#define GRxMissPkt_WIDTH 32
#define GRxFalseCRS_offset 0x14
#define GRxFalseCRS_WIDTH 32
#define GRxPausePkt_offset 0x18
#define GRxPausePkt_WIDTH 32
#define GRxBadPkt_offset 0x1C
#define GRxBadPkt_WIDTH 32
#define GRxUcastPkt_offset 0x20
#define GRxUcastPkt_WIDTH 32
#define GRxMcastPkt_offset 0x24
#define GRxMcastPkt_WIDTH 32
#define GRxBcastPkt_offset 0x28
#define GRxBcastPkt_WIDTH 32
#define GRxGoodLt64Pkt_offset 0x2C
#define GRxGoodLt64Pkt_WIDTH 32
#define GRxBadLt64Pkt_offset 0x30
#define GRxBadLt64Pkt_WIDTH 32
#define GRx64Pkt_offset 0x34
#define GRx64Pkt_WIDTH 32
#define GRx65to127Pkt_offset 0x38
#define GRx65to127Pkt_WIDTH 32
#define GRx128to255Pkt_offset 0x3C
#define GRx128to255Pkt_WIDTH 32
#define GRx256to511Pkt_offset 0x40
#define GRx256to511Pkt_WIDTH 32
#define GRx512to1023Pkt_offset 0x44
#define GRx512to1023Pkt_WIDTH 32
#define GRx1024to15xxPkt_offset 0x48
#define GRx1024to15xxPkt_WIDTH 32
#define GRx15xxtoJumboPkt_offset 0x4C
#define GRx15xxtoJumboPkt_WIDTH 32
#define GRxGtJumboPkt_offset 0x50
#define GRxGtJumboPkt_WIDTH 32
#define GRxFcsErr64to15xxPkt_offset 0x54
#define GRxFcsErr64to15xxPkt_WIDTH 32
#define GRxFcsErr15xxtoJumboPkt_offset 0x58
#define GRxFcsErr15xxtoJumboPkt_WIDTH 32
#define GRxFcsErrGtJumboPkt_offset 0x5C
#define GRxFcsErrGtJumboPkt_WIDTH 32
#define GTxGoodBadOct_offset 0x80
#define GTxGoodBadOct_WIDTH 48
#define GTxGoodOct_offset 0x88
#define GTxGoodOct_WIDTH 48
#define GTxSglColPkt_offset 0x90
#define GTxSglColPkt_WIDTH 32
#define GTxMultColPkt_offset 0x94
#define GTxMultColPkt_WIDTH 32
#define GTxExColPkt_offset 0x98
#define GTxExColPkt_WIDTH 32
#define GTxDefPkt_offset 0x9C
#define GTxDefPkt_WIDTH 32
#define GTxLateCol_offset 0xA0
#define GTxLateCol_WIDTH 32
#define GTxExDefPkt_offset 0xA4
#define GTxExDefPkt_WIDTH 32
#define GTxPausePkt_offset 0xA8
#define GTxPausePkt_WIDTH 32
#define GTxBadPkt_offset 0xAC
#define GTxBadPkt_WIDTH 32
#define GTxUcastPkt_offset 0xB0
#define GTxUcastPkt_WIDTH 32
#define GTxMcastPkt_offset 0xB4
#define GTxMcastPkt_WIDTH 32
#define GTxBcastPkt_offset 0xB8
#define GTxBcastPkt_WIDTH 32
#define GTxLt64Pkt_offset 0xBC
#define GTxLt64Pkt_WIDTH 32
#define GTx64Pkt_offset 0xC0
#define GTx64Pkt_WIDTH 32
#define GTx65to127Pkt_offset 0xC4
#define GTx65to127Pkt_WIDTH 32
#define GTx128to255Pkt_offset 0xC8
#define GTx128to255Pkt_WIDTH 32
#define GTx256to511Pkt_offset 0xCC
#define GTx256to511Pkt_WIDTH 32
#define GTx512to1023Pkt_offset 0xD0
#define GTx512to1023Pkt_WIDTH 32
#define GTx1024to15xxPkt_offset 0xD4
#define GTx1024to15xxPkt_WIDTH 32
#define GTx15xxtoJumboPkt_offset 0xD8
#define GTx15xxtoJumboPkt_WIDTH 32
#define GTxGtJumboPkt_offset 0xDC
#define GTxGtJumboPkt_WIDTH 32
#define GTxNonTcpUdpPkt_offset 0xE0
#define GTxNonTcpUdpPkt_WIDTH 16
#define GTxMacSrcErrPkt_offset 0xE4
#define GTxMacSrcErrPkt_WIDTH 16
#define GTxIpSrcErrPkt_offset 0xE8
#define GTxIpSrcErrPkt_WIDTH 16
#define GDmaDone_offset 0xEC
#define GDmaDone_WIDTH 32
#define XgRxOctets_offset 0x0
#define XgRxOctets_WIDTH 48

224
drivers/net/sfc/falcon_xmac.c
View File

@ -25,24 +25,6 @@
* MAC operations
*
*************************************************************************/
static int falcon_reset_xmac(struct efx_nic *efx)
{
efx_oword_t reg;
int count;
EFX_POPULATE_OWORD_1(reg, XM_CORE_RST, 1);
falcon_write(efx, &reg, XM_GLB_CFG_REG);
for (count = 0; count < 10000; count++) { /* wait upto 100ms */
falcon_read(efx, &reg, XM_GLB_CFG_REG);
if (EFX_OWORD_FIELD(reg, XM_CORE_RST) == 0)
return 0;
udelay(10);
}
EFX_ERR(efx, "timed out waiting for XMAC core reset\n");
return -ETIMEDOUT;
}
/* Configure the XAUI driver that is an output from Falcon */
static void falcon_setup_xaui(struct efx_nic *efx)
@ -98,31 +80,20 @@ int falcon_reset_xaui(struct efx_nic *efx)
return -ETIMEDOUT;
}
static bool falcon_xgmii_status(struct efx_nic *efx)
{
efx_oword_t reg;
if (falcon_rev(efx) < FALCON_REV_B0)
return true;
/* The ISR latches, so clear it and re-read */
falcon_read(efx, &reg, XM_MGT_INT_REG_B0);
falcon_read(efx, &reg, XM_MGT_INT_REG_B0);
if (EFX_OWORD_FIELD(reg, XM_LCLFLT) ||
EFX_OWORD_FIELD(reg, XM_RMTFLT)) {
EFX_INFO(efx, "MGT_INT: "EFX_DWORD_FMT"\n", EFX_DWORD_VAL(reg));
return false;
}
return true;
}
static void falcon_mask_status_intr(struct efx_nic *efx, bool enable)
{
efx_oword_t reg;
if ((falcon_rev(efx) < FALCON_REV_B0) || LOOPBACK_INTERNAL(efx))
if ((falcon_rev(efx) != FALCON_REV_B0) || LOOPBACK_INTERNAL(efx))
return;
/* We expect xgmii faults if the wireside link is up */
if (!EFX_WORKAROUND_5147(efx) || !efx->link_up)
return;
/* We can only use this interrupt to signal the negative edge of
* xaui_align [we have to poll the positive edge]. */
if (!efx->mac_up)
return;
/* Flush the ISR */
@ -135,35 +106,7 @@ static void falcon_mask_status_intr(struct efx_nic *efx, bool enable)
falcon_write(efx, &reg, XM_MGT_INT_MSK_REG_B0);
}
int falcon_init_xmac(struct efx_nic *efx)
{
int rc;
/* Initialize the PHY first so the clock is around */
rc = efx->phy_op->init(efx);
if (rc)
goto fail1;
rc = falcon_reset_xaui(efx);
if (rc)
goto fail2;
/* Wait again. Give the PHY and MAC time to come back */
schedule_timeout_uninterruptible(HZ / 10);
rc = falcon_reset_xmac(efx);
if (rc)
goto fail2;
falcon_mask_status_intr(efx, true);
return 0;
fail2:
efx->phy_op->fini(efx);
fail1:
return rc;
}
/* Get status of XAUI link */
bool falcon_xaui_link_ok(struct efx_nic *efx)
{
efx_oword_t reg;
@ -187,18 +130,10 @@ bool falcon_xaui_link_ok(struct efx_nic *efx)
EFX_SET_OWORD_FIELD(reg, XX_DISPERR, XX_DISPERR_RESET);
falcon_write(efx, &reg, XX_CORE_STAT_REG);
/* If the link is up, then check the phy side of the xaui link
* (error conditions from the wire side propoagate back through
* the phy to the xaui side). */
if (efx->link_up && link_ok) {
/* If the link is up, then check the phy side of the xaui link */
if (efx->link_up && link_ok)
if (efx->phy_op->mmds & (1 << MDIO_MMD_PHYXS))
link_ok = mdio_clause45_phyxgxs_lane_sync(efx);
}
/* If the PHY and XAUI links are up, then check the mac's xgmii
* fault state */
if (efx->link_up && link_ok)
link_ok = falcon_xgmii_status(efx);
return link_ok;
}
@ -310,70 +245,39 @@ static void falcon_reconfigure_xgxs_core(struct efx_nic *efx)
/* Try and bring the Falcon side of the Falcon-Phy XAUI link fails
* to come back up. Bash it until it comes back up */
static bool falcon_check_xaui_link_up(struct efx_nic *efx)
static void falcon_check_xaui_link_up(struct efx_nic *efx, int tries)
{
int max_tries, tries;
tries = EFX_WORKAROUND_5147(efx) ? 5 : 1;
max_tries = tries;
efx->mac_up = falcon_xaui_link_ok(efx);
if ((efx->loopback_mode == LOOPBACK_NETWORK) ||
(efx->phy_type == PHY_TYPE_NONE) ||
efx_phy_mode_disabled(efx->phy_mode))
return false;
/* XAUI link is expected to be down */
return;
while (tries) {
if (falcon_xaui_link_ok(efx))
return true;
EFX_LOG(efx, "%s Clobbering XAUI (%d tries left).\n",
__func__, tries);
while (!efx->mac_up && tries) {
EFX_LOG(efx, "bashing xaui\n");
falcon_reset_xaui(efx);
udelay(200);
tries--;
}
EFX_LOG(efx, "Failed to bring XAUI link back up in %d tries!\n",
max_tries);
return false;
efx->mac_up = falcon_xaui_link_ok(efx);
--tries;
}
}
void falcon_reconfigure_xmac(struct efx_nic *efx)
static void falcon_reconfigure_xmac(struct efx_nic *efx)
{
bool xaui_link_ok;
falcon_mask_status_intr(efx, false);
falcon_deconfigure_mac_wrapper(efx);
/* Reconfigure the PHY, disabling transmit in mac level loopback. */
if (LOOPBACK_INTERNAL(efx))
efx->phy_mode |= PHY_MODE_TX_DISABLED;
else
efx->phy_mode &= ~PHY_MODE_TX_DISABLED;
efx->phy_op->reconfigure(efx);
falcon_reconfigure_xgxs_core(efx);
falcon_reconfigure_xmac_core(efx);
falcon_reconfigure_mac_wrapper(efx);
/* Ensure XAUI link is up */
xaui_link_ok = falcon_check_xaui_link_up(efx);
if (xaui_link_ok && efx->link_up)
falcon_mask_status_intr(efx, true);
falcon_check_xaui_link_up(efx, 5);
falcon_mask_status_intr(efx, true);
}
void falcon_fini_xmac(struct efx_nic *efx)
{
/* Isolate the MAC - PHY */
falcon_deconfigure_mac_wrapper(efx);
/* Potentially power down the PHY */
efx->phy_op->fini(efx);
}
void falcon_update_stats_xmac(struct efx_nic *efx)
static void falcon_update_stats_xmac(struct efx_nic *efx)
{
struct efx_mac_stats *mac_stats = &efx->mac_stats;
int rc;
@ -438,7 +342,7 @@ void falcon_update_stats_xmac(struct efx_nic *efx)
mac_stats->rx_control * 64);
}
int falcon_check_xmac(struct efx_nic *efx)
static int falcon_check_xmac(struct efx_nic *efx)
{
bool xaui_link_ok;
int rc;
@ -463,72 +367,8 @@ int falcon_check_xmac(struct efx_nic *efx)
return rc;
}
/* Simulate a PHY event */
void falcon_xmac_sim_phy_event(struct efx_nic *efx)
{
efx_qword_t phy_event;
EFX_POPULATE_QWORD_2(phy_event,
EV_CODE, GLOBAL_EV_DECODE,
XG_PHY_INTR, 1);
falcon_generate_event(&efx->channel[0], &phy_event);
}
int falcon_xmac_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
{
mdio_clause45_get_settings(efx, ecmd);
ecmd->transceiver = XCVR_INTERNAL;
ecmd->phy_address = efx->mii.phy_id;
ecmd->autoneg = AUTONEG_DISABLE;
ecmd->duplex = DUPLEX_FULL;
return 0;
}
int falcon_xmac_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
{
if (ecmd->transceiver != XCVR_INTERNAL)
return -EINVAL;
if (ecmd->autoneg != AUTONEG_DISABLE)
return -EINVAL;
if (ecmd->duplex != DUPLEX_FULL)
return -EINVAL;
return mdio_clause45_set_settings(efx, ecmd);
}
int falcon_xmac_set_pause(struct efx_nic *efx, enum efx_fc_type flow_control)
{
bool reset;
if (flow_control & EFX_FC_AUTO) {
EFX_LOG(efx, "10G does not support flow control "
"autonegotiation\n");
return -EINVAL;
}
if ((flow_control & EFX_FC_TX) && !(flow_control & EFX_FC_RX))
return -EINVAL;
/* TX flow control may automatically turn itself off if the
* link partner (intermittently) stops responding to pause
* frames. There isn't any indication that this has happened,
* so the best we do is leave it up to the user to spot this
* and fix it be cycling transmit flow control on this end. */
reset = ((flow_control & EFX_FC_TX) &&
!(efx->flow_control & EFX_FC_TX));
if (EFX_WORKAROUND_11482(efx) && reset) {
if (falcon_rev(efx) >= FALCON_REV_B0) {
/* Recover by resetting the EM block */
if (efx->link_up)
falcon_drain_tx_fifo(efx);
} else {
/* Schedule a reset to recover */
efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
}
}
efx->flow_control = flow_control;
return 0;
}
struct efx_mac_operations falcon_xmac_operations = {
.reconfigure = falcon_reconfigure_xmac,
.update_stats = falcon_update_stats_xmac,
.check_hw = falcon_check_xmac,
};

16
drivers/net/sfc/mac.h
View File

@ -1,7 +1,7 @@
/****************************************************************************
* Driver for Solarflare Solarstorm network controllers and boards
* Copyright 2005-2006 Fen Systems Ltd.
* Copyright 2006-2007 Solarflare Communications Inc.
* Copyright 2006-2008 Solarflare Communications Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
@ -13,17 +13,7 @@
#include "net_driver.h"
extern int falcon_init_xmac(struct efx_nic *efx);
extern void falcon_reconfigure_xmac(struct efx_nic *efx);
extern void falcon_update_stats_xmac(struct efx_nic *efx);
extern void falcon_fini_xmac(struct efx_nic *efx);
extern int falcon_check_xmac(struct efx_nic *efx);
extern void falcon_xmac_sim_phy_event(struct efx_nic *efx);
extern int falcon_xmac_get_settings(struct efx_nic *efx,
struct ethtool_cmd *ecmd);
extern int falcon_xmac_set_settings(struct efx_nic *efx,
struct ethtool_cmd *ecmd);
extern int falcon_xmac_set_pause(struct efx_nic *efx,
enum efx_fc_type pause_params);
extern struct efx_mac_operations falcon_gmac_operations;
extern struct efx_mac_operations falcon_xmac_operations;
#endif

31
drivers/net/sfc/net_driver.h
View File

@ -463,6 +463,8 @@ enum phy_type {
#define PHY_ADDR_INVALID 0xff
#define EFX_IS10G(efx) ((efx)->link_speed == 10000)
enum nic_state {
STATE_INIT = 0,
STATE_RUNNING = 1,
@ -503,6 +505,24 @@ enum efx_fc_type {
EFX_FC_AUTO = 4,
};
/* Supported MAC bit-mask */
enum efx_mac_type {
EFX_GMAC = 1,
EFX_XMAC = 2,
};
/**
* struct efx_mac_operations - Efx MAC operations table
* @reconfigure: Reconfigure MAC. Serialised by the mac_lock
* @update_stats: Update statistics
* @check_hw: Check hardware. Serialised by the mac_lock
*/
struct efx_mac_operations {
void (*reconfigure) (struct efx_nic *efx);
void (*update_stats) (struct efx_nic *efx);
int (*check_hw) (struct efx_nic *efx);
};
/**
* struct efx_phy_operations - Efx PHY operations table
* @init: Initialise PHY
@ -511,16 +531,23 @@ enum efx_fc_type {
* @clear_interrupt: Clear down interrupt
* @blink: Blink LEDs
* @check_hw: Check hardware
* @get_settings: Get ethtool settings. Serialised by the mac_lock.
* @set_settings: Set ethtool settings. Serialised by the mac_lock.
* @mmds: MMD presence mask
* @loopbacks: Supported loopback modes mask
*/
struct efx_phy_operations {
enum efx_mac_type macs;
int (*init) (struct efx_nic *efx);
void (*fini) (struct efx_nic *efx);
void (*reconfigure) (struct efx_nic *efx);
void (*clear_interrupt) (struct efx_nic *efx);
int (*check_hw) (struct efx_nic *efx);
int (*test) (struct efx_nic *efx);
void (*get_settings) (struct efx_nic *efx,
struct ethtool_cmd *ecmd);
int (*set_settings) (struct efx_nic *efx,
struct ethtool_cmd *ecmd);
int mmds;
unsigned loopbacks;
};
@ -686,6 +713,7 @@ union efx_multicast_hash {
* @stats_lock: Statistics update lock. Serialises statistics fetches
* @stats_enabled: Temporarily disable statistics fetches.
* Serialised by @stats_lock
* @mac_op: MAC interface
* @mac_address: Permanent MAC address
* @phy_type: PHY type
* @phy_lock: PHY access lock
@ -693,6 +721,7 @@ union efx_multicast_hash {
* @phy_data: PHY private data (including PHY-specific stats)
* @mii: PHY interface
* @phy_mode: PHY operating mode. Serialised by @mac_lock.
* @mac_up: MAC link state
* @link_up: Link status
* @link_fd: Link is full duplex
* @link_speed: Link speed (Mbps)
@ -763,6 +792,7 @@ struct efx_nic {
spinlock_t stats_lock;
bool stats_enabled;
struct efx_mac_operations *mac_op;
unsigned char mac_address[ETH_ALEN];
enum phy_type phy_type;
@ -772,6 +802,7 @@ struct efx_nic {
struct mii_if_info mii;
enum efx_phy_mode phy_mode;
bool mac_up;
bool link_up;
bool link_fd;
unsigned int link_speed;

26
drivers/net/sfc/selftest.c
View File

@ -26,7 +26,6 @@
#include "selftest.h"
#include "boards.h"
#include "workarounds.h"
#include "mac.h"
#include "spi.h"
#include "falcon_io.h"
#include "mdio_10g.h"
@ -105,9 +104,11 @@ static int efx_test_mii(struct efx_nic *efx, struct efx_self_tests *tests)
goto out;
}
rc = mdio_clause45_check_mmds(efx, efx->phy_op->mmds, 0);
if (rc)
goto out;
if (EFX_IS10G(efx)) {
rc = mdio_clause45_check_mmds(efx, efx->phy_op->mmds, 0);
if (rc)
goto out;
}
out:
mutex_unlock(&efx->mac_lock);
@ -598,7 +599,7 @@ static int efx_test_loopbacks(struct efx_nic *efx, struct ethtool_cmd ecmd,
do {
struct efx_channel *channel = &efx->channel[0];
falcon_check_xmac(efx);
efx->mac_op->check_hw(efx);
schedule_timeout_uninterruptible(HZ / 10);
if (channel->work_pending)
efx_process_channel_now(channel);
@ -606,13 +607,12 @@ static int efx_test_loopbacks(struct efx_nic *efx, struct ethtool_cmd ecmd,
flush_workqueue(efx->workqueue);
rmb();
/* efx->link_up can be 1 even if the XAUI link is down,
* (bug5762). Usually, it's not worth bothering with the
* difference, but for selftests, we need that extra
* guarantee that the link is really, really, up.
*/
/* We need both the phy and xaui links to be ok.
* rather than relying on the falcon_xmac irq/poll
* regime, just poll xaui directly */
link_up = efx->link_up;
if (!falcon_xaui_link_ok(efx))
if (link_up && EFX_IS10G(efx) &&
!falcon_xaui_link_ok(efx))
link_up = false;
} while ((++count < 20) && !link_up);
@ -721,7 +721,6 @@ int efx_offline_test(struct efx_nic *efx,
if (ecmd_test.autoneg == AUTONEG_ENABLE) {
ecmd_test.autoneg = AUTONEG_DISABLE;
ecmd_test.duplex = DUPLEX_FULL;
ecmd_test.speed = SPEED_10000;
}
efx->loopback_mode = LOOPBACK_NONE;
@ -732,9 +731,6 @@ int efx_offline_test(struct efx_nic *efx,
return rc;
}
tests->loopback_speed = ecmd_test.speed;
tests->loopback_full_duplex = ecmd_test.duplex;
rc = efx_test_phy(efx, tests);
if (rc && !rc2)
rc2 = rc;

2
drivers/net/sfc/selftest.h
View File

@ -39,8 +39,6 @@ struct efx_self_tests {
/* offline tests */
int registers;
int phy;
int loopback_speed;
int loopback_full_duplex;
struct efx_loopback_self_tests loopback[LOOPBACK_TEST_MAX + 1];
};

2
drivers/net/sfc/sfe4001.c
View File

@ -176,7 +176,7 @@ static int sfe4001_check_hw(struct efx_nic *efx)
s32 status;
/* If XAUI link is up then do not monitor */
if (EFX_WORKAROUND_7884(efx) && falcon_xaui_link_ok(efx))
if (EFX_WORKAROUND_7884(efx) && efx->mac_up)
return 0;
/* Check the powered status of the PHY. Lack of power implies that

10
drivers/net/sfc/tenxpress.c
View File

@ -1,6 +1,6 @@
/****************************************************************************
* Driver for Solarflare 802.3an compliant PHY
* Copyright 2007 Solarflare Communications Inc.
* Driver for Solarflare Solarstorm network controllers and boards
* Copyright 2007-2008 Solarflare Communications Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
@ -15,7 +15,6 @@
#include "phy.h"
#include "falcon_hwdefs.h"
#include "boards.h"
#include "mac.h"
/* We expect these MMDs to be in the package */
/* AN not here as mdio_check_mmds() requires STAT2 support */
@ -381,7 +380,7 @@ static int tenxpress_phy_check_hw(struct efx_nic *efx)
link_ok = tenxpress_link_ok(efx, true);
if (link_ok != efx->link_up)
falcon_xmac_sim_phy_event(efx);
falcon_sim_phy_event(efx);
if (phy_data->phy_mode != PHY_MODE_NORMAL)
return 0;
@ -453,12 +452,15 @@ static int tenxpress_phy_test(struct efx_nic *efx)
}
struct efx_phy_operations falcon_tenxpress_phy_ops = {
.macs = EFX_XMAC,
.init = tenxpress_phy_init,
.reconfigure = tenxpress_phy_reconfigure,
.check_hw = tenxpress_phy_check_hw,
.fini = tenxpress_phy_fini,
.clear_interrupt = tenxpress_phy_clear_interrupt,
.test = tenxpress_phy_test,
.get_settings = mdio_clause45_get_settings,
.set_settings = mdio_clause45_set_settings,
.mmds = TENXPRESS_REQUIRED_DEVS,
.loopbacks = TENXPRESS_LOOPBACKS,
};

7
drivers/net/sfc/xfp_phy.c
View File

@ -17,7 +17,7 @@
#include "mdio_10g.h"
#include "xenpack.h"
#include "phy.h"
#include "mac.h"
#include "falcon.h"
#define XFP_REQUIRED_DEVS (MDIO_MMDREG_DEVS_PCS | \
MDIO_MMDREG_DEVS_PMAPMD | \
@ -125,7 +125,7 @@ static int xfp_phy_check_hw(struct efx_nic *efx)
int link_up = xfp_link_ok(efx);
/* Simulate a PHY event if link state has changed */
if (link_up != efx->link_up)
falcon_xmac_sim_phy_event(efx);
falcon_sim_phy_event(efx);
rc = efx->board_info.monitor(efx);
if (rc) {
@ -169,11 +169,14 @@ static void xfp_phy_fini(struct efx_nic *efx)
}
struct efx_phy_operations falcon_xfp_phy_ops = {
.macs = EFX_XMAC,
.init = xfp_phy_init,
.reconfigure = xfp_phy_reconfigure,
.check_hw = xfp_phy_check_hw,
.fini = xfp_phy_fini,
.clear_interrupt = xfp_phy_clear_interrupt,
.get_settings = mdio_clause45_get_settings,
.set_settings = mdio_clause45_set_settings,
.mmds = XFP_REQUIRED_DEVS,
.loopbacks = XFP_LOOPBACKS,
};