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path: root/drivers/net/cxgb3/cxgb3_main.c
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Diffstat (limited to 'drivers/net/cxgb3/cxgb3_main.c')
-rw-r--r--drivers/net/cxgb3/cxgb3_main.c254
1 files changed, 199 insertions, 55 deletions
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index bab8a934c33..d8be89621bf 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -170,6 +170,40 @@ static void link_report(struct net_device *dev)
}
}
+void t3_os_link_fault(struct adapter *adap, int port_id, int state)
+{
+ struct net_device *dev = adap->port[port_id];
+ struct port_info *pi = netdev_priv(dev);
+
+ if (state == netif_carrier_ok(dev))
+ return;
+
+ if (state) {
+ struct cmac *mac = &pi->mac;
+
+ netif_carrier_on(dev);
+
+ /* Clear local faults */
+ t3_xgm_intr_disable(adap, pi->port_id);
+ t3_read_reg(adap, A_XGM_INT_STATUS +
+ pi->mac.offset);
+ t3_write_reg(adap,
+ A_XGM_INT_CAUSE + pi->mac.offset,
+ F_XGM_INT);
+
+ t3_set_reg_field(adap,
+ A_XGM_INT_ENABLE +
+ pi->mac.offset,
+ F_XGM_INT, F_XGM_INT);
+ t3_xgm_intr_enable(adap, pi->port_id);
+
+ t3_mac_enable(mac, MAC_DIRECTION_TX);
+ } else
+ netif_carrier_off(dev);
+
+ link_report(dev);
+}
+
/**
* t3_os_link_changed - handle link status changes
* @adapter: the adapter associated with the link change
@@ -197,10 +231,34 @@ void t3_os_link_changed(struct adapter *adapter, int port_id, int link_stat,
if (link_stat != netif_carrier_ok(dev)) {
if (link_stat) {
t3_mac_enable(mac, MAC_DIRECTION_RX);
+
+ /* Clear local faults */
+ t3_xgm_intr_disable(adapter, pi->port_id);
+ t3_read_reg(adapter, A_XGM_INT_STATUS +
+ pi->mac.offset);
+ t3_write_reg(adapter,
+ A_XGM_INT_CAUSE + pi->mac.offset,
+ F_XGM_INT);
+
+ t3_set_reg_field(adapter,
+ A_XGM_INT_ENABLE + pi->mac.offset,
+ F_XGM_INT, F_XGM_INT);
+ t3_xgm_intr_enable(adapter, pi->port_id);
+
netif_carrier_on(dev);
} else {
netif_carrier_off(dev);
- pi->phy.ops->power_down(&pi->phy, 1);
+
+ t3_xgm_intr_disable(adapter, pi->port_id);
+ t3_read_reg(adapter, A_XGM_INT_STATUS + pi->mac.offset);
+ t3_set_reg_field(adapter,
+ A_XGM_INT_ENABLE + pi->mac.offset,
+ F_XGM_INT, 0);
+
+ if (is_10G(adapter))
+ pi->phy.ops->power_down(&pi->phy, 1);
+
+ t3_read_reg(adapter, A_XGM_INT_STATUS + pi->mac.offset);
t3_mac_disable(mac, MAC_DIRECTION_RX);
t3_link_start(&pi->phy, mac, &pi->link_config);
}
@@ -339,7 +397,7 @@ static void free_irq_resources(struct adapter *adapter)
free_irq(adapter->msix_info[0].vec, adapter);
for_each_port(adapter, i)
- n += adap2pinfo(adapter, i)->nqsets;
+ n += adap2pinfo(adapter, i)->nqsets;
for (i = 0; i < n; ++i)
free_irq(adapter->msix_info[i + 1].vec,
@@ -509,19 +567,9 @@ static void set_qset_lro(struct net_device *dev, int qset_idx, int val)
{
struct port_info *pi = netdev_priv(dev);
struct adapter *adapter = pi->adapter;
- int i, lro_on = 1;
adapter->params.sge.qset[qset_idx].lro = !!val;
adapter->sge.qs[qset_idx].lro_enabled = !!val;
-
- /* let ethtool report LRO on only if all queues are LRO enabled */
- for (i = pi->first_qset; i < pi->first_qset + pi->nqsets; ++i)
- lro_on &= adapter->params.sge.qset[i].lro;
-
- if (lro_on)
- dev->features |= NETIF_F_LRO;
- else
- dev->features &= ~NETIF_F_LRO;
}
/**
@@ -1183,6 +1231,10 @@ static int cxgb_close(struct net_device *dev)
struct port_info *pi = netdev_priv(dev);
struct adapter *adapter = pi->adapter;
+ /* Stop link fault interrupts */
+ t3_xgm_intr_disable(adapter, pi->port_id);
+ t3_read_reg(adapter, A_XGM_INT_STATUS + pi->mac.offset);
+
t3_port_intr_disable(adapter, pi->port_id);
netif_tx_stop_all_queues(dev);
pi->phy.ops->power_down(&pi->phy, 1);
@@ -1309,6 +1361,7 @@ static char stats_strings[][ETH_GSTRING_LEN] = {
"CheckTXEnToggled ",
"CheckResets ",
+ "LinkFaults ",
};
static int get_sset_count(struct net_device *dev, int sset)
@@ -1434,13 +1487,15 @@ static void get_stats(struct net_device *dev, struct ethtool_stats *stats,
*data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_VLANINS);
*data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_TX_CSUM);
*data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_RX_CSUM_GOOD);
- *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_LRO_AGGR);
- *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_LRO_FLUSHED);
- *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_LRO_NO_DESC);
+ *data++ = 0;
+ *data++ = 0;
+ *data++ = 0;
*data++ = s->rx_cong_drops;
*data++ = s->num_toggled;
*data++ = s->num_resets;
+
+ *data++ = s->link_faults;
}
static inline void reg_block_dump(struct adapter *ap, void *buf,
@@ -1576,7 +1631,6 @@ static int speed_duplex_to_caps(int speed, int duplex)
static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
- int cap;
struct port_info *p = netdev_priv(dev);
struct link_config *lc = &p->link_config;
@@ -1586,7 +1640,7 @@ static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
* being requested.
*/
if (cmd->autoneg == AUTONEG_DISABLE) {
- cap = speed_duplex_to_caps(cmd->speed, cmd->duplex);
+ int cap = speed_duplex_to_caps(cmd->speed, cmd->duplex);
if (lc->supported & cap)
return 0;
}
@@ -1827,28 +1881,6 @@ static void get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
memset(&wol->sopass, 0, sizeof(wol->sopass));
}
-static int cxgb3_set_flags(struct net_device *dev, u32 data)
-{
- struct port_info *pi = netdev_priv(dev);
- int i;
-
- if (data & ETH_FLAG_LRO) {
- if (!(pi->rx_offload & T3_RX_CSUM))
- return -EINVAL;
-
- pi->rx_offload |= T3_LRO;
- for (i = pi->first_qset; i < pi->first_qset + pi->nqsets; i++)
- set_qset_lro(dev, i, 1);
-
- } else {
- pi->rx_offload &= ~T3_LRO;
- for (i = pi->first_qset; i < pi->first_qset + pi->nqsets; i++)
- set_qset_lro(dev, i, 0);
- }
-
- return 0;
-}
-
static const struct ethtool_ops cxgb_ethtool_ops = {
.get_settings = get_settings,
.set_settings = set_settings,
@@ -1878,8 +1910,6 @@ static const struct ethtool_ops cxgb_ethtool_ops = {
.get_regs = get_regs,
.get_wol = get_wol,
.set_tso = ethtool_op_set_tso,
- .get_flags = ethtool_op_get_flags,
- .set_flags = cxgb3_set_flags,
};
static int in_range(int val, int lo, int hi)
@@ -2460,8 +2490,20 @@ static void check_link_status(struct adapter *adapter)
struct net_device *dev = adapter->port[i];
struct port_info *p = netdev_priv(dev);
- if (!(p->phy.caps & SUPPORTED_IRQ) && netif_running(dev))
+ spin_lock_irq(&adapter->work_lock);
+ if (p->link_fault) {
+ spin_unlock_irq(&adapter->work_lock);
+ continue;
+ }
+ spin_unlock_irq(&adapter->work_lock);
+
+ if (!(p->phy.caps & SUPPORTED_IRQ) && netif_running(dev)) {
+ t3_xgm_intr_disable(adapter, i);
+ t3_read_reg(adapter, A_XGM_INT_STATUS + p->mac.offset);
+
t3_link_changed(adapter, i);
+ t3_xgm_intr_enable(adapter, i);
+ }
}
}
@@ -2506,6 +2548,8 @@ static void t3_adap_check_task(struct work_struct *work)
struct adapter *adapter = container_of(work, struct adapter,
adap_check_task.work);
const struct adapter_params *p = &adapter->params;
+ int port;
+ unsigned int v, status, reset;
adapter->check_task_cnt++;
@@ -2524,6 +2568,54 @@ static void t3_adap_check_task(struct work_struct *work)
if (p->rev == T3_REV_B2)
check_t3b2_mac(adapter);
+ /*
+ * Scan the XGMAC's to check for various conditions which we want to
+ * monitor in a periodic polling manner rather than via an interrupt
+ * condition. This is used for conditions which would otherwise flood
+ * the system with interrupts and we only really need to know that the
+ * conditions are "happening" ... For each condition we count the
+ * detection of the condition and reset it for the next polling loop.
+ */
+ for_each_port(adapter, port) {
+ struct cmac *mac = &adap2pinfo(adapter, port)->mac;
+ u32 cause;
+
+ cause = t3_read_reg(adapter, A_XGM_INT_CAUSE + mac->offset);
+ reset = 0;
+ if (cause & F_RXFIFO_OVERFLOW) {
+ mac->stats.rx_fifo_ovfl++;
+ reset |= F_RXFIFO_OVERFLOW;
+ }
+
+ t3_write_reg(adapter, A_XGM_INT_CAUSE + mac->offset, reset);
+ }
+
+ /*
+ * We do the same as above for FL_EMPTY interrupts.
+ */
+ status = t3_read_reg(adapter, A_SG_INT_CAUSE);
+ reset = 0;
+
+ if (status & F_FLEMPTY) {
+ struct sge_qset *qs = &adapter->sge.qs[0];
+ int i = 0;
+
+ reset |= F_FLEMPTY;
+
+ v = (t3_read_reg(adapter, A_SG_RSPQ_FL_STATUS) >> S_FL0EMPTY) &
+ 0xffff;
+
+ while (v) {
+ qs->fl[i].empty += (v & 1);
+ if (i)
+ qs++;
+ i ^= 1;
+ v >>= 1;
+ }
+ }
+
+ t3_write_reg(adapter, A_SG_INT_CAUSE, reset);
+
/* Schedule the next check update if any port is active. */
spin_lock_irq(&adapter->work_lock);
if (adapter->open_device_map & PORT_MASK)
@@ -2538,9 +2630,23 @@ static void ext_intr_task(struct work_struct *work)
{
struct adapter *adapter = container_of(work, struct adapter,
ext_intr_handler_task);
+ int i;
+ /* Disable link fault interrupts */
+ for_each_port(adapter, i) {
+ struct net_device *dev = adapter->port[i];
+ struct port_info *p = netdev_priv(dev);
+
+ t3_xgm_intr_disable(adapter, i);
+ t3_read_reg(adapter, A_XGM_INT_STATUS + p->mac.offset);
+ }
+
+ /* Re-enable link fault interrupts */
t3_phy_intr_handler(adapter);
+ for_each_port(adapter, i)
+ t3_xgm_intr_enable(adapter, i);
+
/* Now reenable external interrupts */
spin_lock_irq(&adapter->work_lock);
if (adapter->slow_intr_mask) {
@@ -2573,10 +2679,42 @@ void t3_os_ext_intr_handler(struct adapter *adapter)
spin_unlock(&adapter->work_lock);
}
+static void link_fault_task(struct work_struct *work)
+{
+ struct adapter *adapter = container_of(work, struct adapter,
+ link_fault_handler_task);
+ int i;
+
+ for_each_port(adapter, i) {
+ struct net_device *netdev = adapter->port[i];
+ struct port_info *pi = netdev_priv(netdev);
+
+ if (pi->link_fault)
+ t3_link_fault(adapter, i);
+ }
+}
+
+void t3_os_link_fault_handler(struct adapter *adapter, int port_id)
+{
+ struct net_device *netdev = adapter->port[port_id];
+ struct port_info *pi = netdev_priv(netdev);
+
+ spin_lock(&adapter->work_lock);
+ pi->link_fault = 1;
+ queue_work(cxgb3_wq, &adapter->link_fault_handler_task);
+ spin_unlock(&adapter->work_lock);
+}
+
static int t3_adapter_error(struct adapter *adapter, int reset)
{
int i, ret = 0;
+ if (is_offload(adapter) &&
+ test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map)) {
+ cxgb3_err_notify(&adapter->tdev, OFFLOAD_STATUS_DOWN, 0);
+ offload_close(&adapter->tdev);
+ }
+
/* Stop all ports */
for_each_port(adapter, i) {
struct net_device *netdev = adapter->port[i];
@@ -2585,10 +2723,6 @@ static int t3_adapter_error(struct adapter *adapter, int reset)
cxgb_close(netdev);
}
- if (is_offload(adapter) &&
- test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map))
- offload_close(&adapter->tdev);
-
/* Stop SGE timers */
t3_stop_sge_timers(adapter);
@@ -2640,6 +2774,9 @@ static void t3_resume_ports(struct adapter *adapter)
}
}
}
+
+ if (is_offload(adapter) && !ofld_disable)
+ cxgb3_err_notify(&adapter->tdev, OFFLOAD_STATUS_UP, 0);
}
/*
@@ -2684,7 +2821,6 @@ void t3_fatal_err(struct adapter *adapter)
CH_ALERT(adapter, "FW status: 0x%x, 0x%x, 0x%x, 0x%x\n",
fw_status[0], fw_status[1],
fw_status[2], fw_status[3]);
-
}
/**
@@ -2753,7 +2889,7 @@ static void set_nqsets(struct adapter *adap)
int i, j = 0;
int num_cpus = num_online_cpus();
int hwports = adap->params.nports;
- int nqsets = SGE_QSETS;
+ int nqsets = adap->msix_nvectors - 1;
if (adap->params.rev > 0 && adap->flags & USING_MSIX) {
if (hwports == 2 &&
@@ -2782,18 +2918,25 @@ static void set_nqsets(struct adapter *adap)
static int __devinit cxgb_enable_msix(struct adapter *adap)
{
struct msix_entry entries[SGE_QSETS + 1];
+ int vectors;
int i, err;
- for (i = 0; i < ARRAY_SIZE(entries); ++i)
+ vectors = ARRAY_SIZE(entries);
+ for (i = 0; i < vectors; ++i)
entries[i].entry = i;
- err = pci_enable_msix(adap->pdev, entries, ARRAY_SIZE(entries));
+ while ((err = pci_enable_msix(adap->pdev, entries, vectors)) > 0)
+ vectors = err;
+
+ if (!err && vectors < (adap->params.nports + 1))
+ err = -1;
+
if (!err) {
- for (i = 0; i < ARRAY_SIZE(entries); ++i)
+ for (i = 0; i < vectors; ++i)
adap->msix_info[i].vec = entries[i].vector;
- } else if (err > 0)
- dev_info(&adap->pdev->dev,
- "only %d MSI-X vectors left, not using MSI-X\n", err);
+ adap->msix_nvectors = vectors;
+ }
+
return err;
}
@@ -2935,6 +3078,7 @@ static int __devinit init_one(struct pci_dev *pdev,
INIT_LIST_HEAD(&adapter->adapter_list);
INIT_WORK(&adapter->ext_intr_handler_task, ext_intr_task);
+ INIT_WORK(&adapter->link_fault_handler_task, link_fault_task);
INIT_WORK(&adapter->fatal_error_handler_task, fatal_error_task);
INIT_DELAYED_WORK(&adapter->adap_check_task, t3_adap_check_task);
@@ -2961,7 +3105,7 @@ static int __devinit init_one(struct pci_dev *pdev,
netdev->mem_end = mmio_start + mmio_len - 1;
netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO;
netdev->features |= NETIF_F_LLTX;
- netdev->features |= NETIF_F_LRO;
+ netdev->features |= NETIF_F_GRO;
if (pci_using_dac)
netdev->features |= NETIF_F_HIGHDMA;