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path: root/drivers/net/cxgb3/t3_hw.c
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Diffstat (limited to 'drivers/net/cxgb3/t3_hw.c')
-rw-r--r--drivers/net/cxgb3/t3_hw.c243
1 files changed, 155 insertions, 88 deletions
diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index 04c0e90119af..968f64be3743 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2003-2007 Chelsio, Inc. All rights reserved.
+ * 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
@@ -194,21 +194,18 @@ int t3_mc7_bd_read(struct mc7 *mc7, unsigned int start, unsigned int n,
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_MDIINV(ai->mdiinv) | V_MDIEN(ai->mdien) |
- V_CLKDIV(clkdiv);
+ u32 val = F_PREEN | V_CLKDIV(clkdiv);
- if (!(ai->caps & SUPPORTED_10000baseT_Full))
- val |= V_ST(1);
t3_write_reg(adap, A_MI1_CFG, val);
}
-#define MDIO_ATTEMPTS 10
+#define MDIO_ATTEMPTS 20
/*
- * MI1 read/write operations for direct-addressed PHYs.
+ * MI1 read/write operations for clause 22 PHYs.
*/
-static int mi1_read(struct adapter *adapter, int phy_addr, int mmd_addr,
- int reg_addr, unsigned int *valp)
+static int t3_mi1_read(struct adapter *adapter, int phy_addr, int mmd_addr,
+ int reg_addr, unsigned int *valp)
{
int ret;
u32 addr = V_REGADDR(reg_addr) | V_PHYADDR(phy_addr);
@@ -217,16 +214,17 @@ static int mi1_read(struct adapter *adapter, int phy_addr, int mmd_addr,
return -EINVAL;
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, 20);
+ ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0, MDIO_ATTEMPTS, 10);
if (!ret)
*valp = t3_read_reg(adapter, A_MI1_DATA);
mutex_unlock(&adapter->mdio_lock);
return ret;
}
-static int mi1_write(struct adapter *adapter, int phy_addr, int mmd_addr,
+static int t3_mi1_write(struct adapter *adapter, int phy_addr, int mmd_addr,
int reg_addr, unsigned int val)
{
int ret;
@@ -236,37 +234,51 @@ static int mi1_write(struct adapter *adapter, int phy_addr, int mmd_addr,
return -EINVAL;
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, 20);
+ 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 = {
- mi1_read,
- mi1_write
+ t3_mi1_read,
+ t3_mi1_write
};
/*
+ * 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 adapter *adapter, int phy_addr, int mmd_addr,
int reg_addr, unsigned int *valp)
{
int ret;
- u32 addr = V_REGADDR(mmd_addr) | V_PHYADDR(phy_addr);
mutex_lock(&adapter->mdio_lock);
- 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));
- ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0, MDIO_ATTEMPTS, 20);
+ 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, 20);
+ MDIO_ATTEMPTS, 10);
if (!ret)
*valp = t3_read_reg(adapter, A_MI1_DATA);
}
@@ -278,18 +290,14 @@ static int mi1_ext_write(struct adapter *adapter, int phy_addr, int mmd_addr,
int reg_addr, unsigned int val)
{
int ret;
- u32 addr = V_REGADDR(mmd_addr) | V_PHYADDR(phy_addr);
mutex_lock(&adapter->mdio_lock);
- 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));
- ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0, MDIO_ATTEMPTS, 20);
+ 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, 20);
+ MDIO_ATTEMPTS, 10);
}
mutex_unlock(&adapter->mdio_lock);
return ret;
@@ -400,6 +408,29 @@ int t3_phy_advertise(struct cphy *phy, unsigned int advert)
}
/**
+ * 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 mdio_write(phy, 0, MII_ADVERTISE, val);
+}
+
+/**
* t3_set_phy_speed_duplex - force PHY speed and duplex
* @phy: the PHY to operate on
* @speed: requested PHY speed
@@ -434,27 +465,52 @@ int t3_set_phy_speed_duplex(struct cphy *phy, int speed, int duplex)
return mdio_write(phy, 0, MII_BMCR, ctl);
}
+int t3_phy_lasi_intr_enable(struct cphy *phy)
+{
+ return mdio_write(phy, MDIO_DEV_PMA_PMD, LASI_CTRL, 1);
+}
+
+int t3_phy_lasi_intr_disable(struct cphy *phy)
+{
+ return mdio_write(phy, MDIO_DEV_PMA_PMD, LASI_CTRL, 0);
+}
+
+int t3_phy_lasi_intr_clear(struct cphy *phy)
+{
+ u32 val;
+
+ return mdio_read(phy, MDIO_DEV_PMA_PMD, LASI_STAT, &val);
+}
+
+int t3_phy_lasi_intr_handler(struct cphy *phy)
+{
+ unsigned int status;
+ int err = mdio_read(phy, MDIO_DEV_PMA_PMD, LASI_STAT, &status);
+
+ if (err)
+ return err;
+ return (status & 1) ? cphy_cause_link_change : 0;
+}
+
static const struct adapter_info t3_adap_info[] = {
- {2, 0, 0, 0,
+ {2, 0,
F_GPIO2_OEN | F_GPIO4_OEN |
- F_GPIO2_OUT_VAL | F_GPIO4_OUT_VAL, F_GPIO3 | F_GPIO5,
- 0,
+ F_GPIO2_OUT_VAL | F_GPIO4_OUT_VAL, { S_GPIO3, S_GPIO5 }, 0,
&mi1_mdio_ops, "Chelsio PE9000"},
- {2, 0, 0, 0,
+ {2, 0,
F_GPIO2_OEN | F_GPIO4_OEN |
- F_GPIO2_OUT_VAL | F_GPIO4_OUT_VAL, F_GPIO3 | F_GPIO5,
- 0,
+ F_GPIO2_OUT_VAL | F_GPIO4_OUT_VAL, { S_GPIO3, S_GPIO5 }, 0,
&mi1_mdio_ops, "Chelsio T302"},
- {1, 0, 0, 0,
+ {1, 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,
+ { 0 }, SUPPORTED_10000baseT_Full | SUPPORTED_AUI,
&mi1_mdio_ext_ops, "Chelsio T310"},
- {2, 0, 0, 0,
+ {2, 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, 0,
- SUPPORTED_10000baseT_Full | SUPPORTED_AUI,
+ 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"},
};
@@ -467,29 +523,23 @@ const struct adapter_info *t3_get_adapter_info(unsigned int id)
return id < ARRAY_SIZE(t3_adap_info) ? &t3_adap_info[id] : NULL;
}
-#define CAPS_1G (SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Full | \
- SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_MII)
-#define CAPS_10G (SUPPORTED_10000baseT_Full | SUPPORTED_AUI)
+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, CAPS_10G | SUPPORTED_FIBRE,
- "10GBASE-XR"},
- {t3_vsc8211_phy_prep, CAPS_1G | SUPPORTED_TP | SUPPORTED_IRQ,
- "10/100/1000BASE-T"},
- {NULL, CAPS_1G | SUPPORTED_TP | SUPPORTED_IRQ,
- "10/100/1000BASE-T"},
- {t3_xaui_direct_phy_prep, CAPS_10G | SUPPORTED_TP, "10GBASE-CX4"},
- {NULL, CAPS_10G, "10GBASE-KX4"},
- {t3_qt2045_phy_prep, CAPS_10G | SUPPORTED_TP, "10GBASE-CX4"},
- {t3_ael1006_phy_prep, CAPS_10G | SUPPORTED_FIBRE,
- "10GBASE-SR"},
- {NULL, CAPS_10G | SUPPORTED_TP, "10GBASE-CX4"},
+ { 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 },
};
-#undef CAPS_1G
-#undef CAPS_10G
-
#define VPD_ENTRY(name, len) \
u8 name##_kword[2]; u8 name##_len; u8 name##_data[len]
@@ -1132,6 +1182,15 @@ void t3_link_changed(struct adapter *adapter, int port_id)
phy->ops->get_link_status(phy, &link_ok, &speed, &duplex, &fc);
+ 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)
@@ -1142,10 +1201,6 @@ void t3_link_changed(struct adapter *adapter, int port_id)
lc->link_ok = link_ok;
lc->speed = speed < 0 ? SPEED_INVALID : speed;
lc->duplex = duplex < 0 ? DUPLEX_INVALID : duplex;
- if (lc->requested_fc & PAUSE_AUTONEG)
- fc &= lc->requested_fc;
- else
- fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
if (link_ok && speed >= 0 && lc->autoneg == AUTONEG_ENABLE) {
/* Set MAC speed, duplex, and flow control to match PHY. */
@@ -1191,7 +1246,6 @@ int t3_link_start(struct cphy *phy, struct cmac *mac, struct link_config *lc)
fc);
/* Also disables autoneg */
phy->ops->set_speed_duplex(phy, lc->speed, lc->duplex);
- phy->ops->reset(phy, 0);
} else
phy->ops->autoneg_enable(phy);
} else {
@@ -1221,7 +1275,7 @@ 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:1; /* whether the condition reported is fatal */
+ unsigned short fatal; /* whether the condition reported is fatal */
};
/**
@@ -1682,25 +1736,23 @@ static int mac_intr_handler(struct adapter *adap, unsigned int idx)
*/
int t3_phy_intr_handler(struct adapter *adapter)
{
- u32 mask, gpi = adapter_info(adapter)->gpio_intr;
u32 i, cause = t3_read_reg(adapter, A_T3DBG_INT_CAUSE);
for_each_port(adapter, i) {
struct port_info *p = adap2pinfo(adapter, i);
- mask = gpi - (gpi & (gpi - 1));
- gpi -= mask;
-
- if (!(p->port_type->caps & SUPPORTED_IRQ))
+ if (!(p->phy.caps & SUPPORTED_IRQ))
continue;
- if (cause & mask) {
+ 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);
}
}
@@ -1763,6 +1815,17 @@ int t3_slow_intr_handler(struct adapter *adapter)
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
@@ -1805,10 +1868,8 @@ void t3_intr_enable(struct adapter *adapter)
t3_write_reg(adapter, A_ULPTX_INT_ENABLE, ULPTX_INTR_MASK);
}
- t3_write_reg(adapter, A_T3DBG_GPIO_ACT_LOW,
- adapter_info(adapter)->gpio_intr);
- t3_write_reg(adapter, A_T3DBG_INT_ENABLE,
- adapter_info(adapter)->gpio_intr);
+ 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
@@ -3329,6 +3390,8 @@ int t3_init_hw(struct adapter *adapter, u32 fw_params)
init_hw_for_avail_ports(adapter, adapter->params.nports);
t3_sge_init(adapter, &adapter->params.sge);
+ 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));
@@ -3488,7 +3551,7 @@ void early_hw_init(struct adapter *adapter, const struct adapter_info *ai)
* Older PCIe cards lose their config space during reset, PCI-X
* ones don't.
*/
-static int t3_reset_adapter(struct adapter *adapter)
+int t3_reset_adapter(struct adapter *adapter)
{
int i, save_and_restore_pcie =
adapter->params.rev < T3_REV_B2 && is_pcie(adapter);
@@ -3556,7 +3619,7 @@ int t3_prep_adapter(struct adapter *adapter, const struct adapter_info *ai,
int reset)
{
int ret;
- unsigned int i, j = 0;
+ unsigned int i, j = -1;
get_pci_mode(adapter, &adapter->params.pci);
@@ -3620,16 +3683,18 @@ int t3_prep_adapter(struct adapter *adapter, const struct adapter_info *ai,
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])
- ++j;
+ while (!adapter->params.vpd.port_type[++j])
+ ;
- p->port_type = &port_types[adapter->params.vpd.port_type[j]];
- p->port_type->phy_prep(&p->phy, adapter, ai->phy_base_addr + j,
- ai->mdio_ops);
+ pti = &port_types[adapter->params.vpd.port_type[j]];
+ 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);
- ++j;
/*
* The VPD EEPROM stores the base Ethernet address for the
@@ -3643,9 +3708,9 @@ int t3_prep_adapter(struct adapter *adapter, const struct adapter_info *ai,
ETH_ALEN);
memcpy(adapter->port[i]->perm_addr, hw_addr,
ETH_ALEN);
- init_link_config(&p->link_config, p->port_type->caps);
+ init_link_config(&p->link_config, p->phy.caps);
p->phy.ops->power_down(&p->phy, 1);
- if (!(p->port_type->caps & SUPPORTED_IRQ))
+ if (!(p->phy.caps & SUPPORTED_IRQ))
adapter->params.linkpoll_period = 10;
}
@@ -3661,7 +3726,7 @@ void t3_led_ready(struct adapter *adapter)
int t3_replay_prep_adapter(struct adapter *adapter)
{
const struct adapter_info *ai = adapter->params.info;
- unsigned int i, j = 0;
+ unsigned int i, j = -1;
int ret;
early_hw_init(adapter, ai);
@@ -3670,15 +3735,17 @@ int t3_replay_prep_adapter(struct adapter *adapter)
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])
- ++j;
- p->port_type->phy_prep(&p->phy, adapter, ai->phy_base_addr + j,
- ai->mdio_ops);
+ 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.addr, NULL);
+ if (ret)
+ return ret;
p->phy.ops->power_down(&p->phy, 1);
- ++j;
}
return 0;
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-25 02:57:52 +0300