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-rw-r--r--drivers/net/cxgb3/adapter.h21
-rw-r--r--drivers/net/cxgb3/ael1002.c3
-rw-r--r--drivers/net/cxgb3/common.h6
-rw-r--r--drivers/net/cxgb3/cxgb3_main.c254
-rw-r--r--drivers/net/cxgb3/cxgb3_offload.c12
-rw-r--r--drivers/net/cxgb3/cxgb3_offload.h7
-rw-r--r--drivers/net/cxgb3/regs.h21
-rw-r--r--drivers/net/cxgb3/sge.c315
-rw-r--r--drivers/net/cxgb3/t3_hw.c164
-rw-r--r--drivers/net/cxgb3/version.h4
-rw-r--r--drivers/net/cxgb3/xgmac.c85
11 files changed, 609 insertions, 283 deletions
diff --git a/drivers/net/cxgb3/adapter.h b/drivers/net/cxgb3/adapter.h
index a89d8cc5120..71eaa431371 100644
--- a/drivers/net/cxgb3/adapter.h
+++ b/drivers/net/cxgb3/adapter.h
@@ -42,7 +42,6 @@
#include <linux/cache.h>
#include <linux/mutex.h>
#include <linux/bitops.h>
-#include <linux/inet_lro.h>
#include "t3cdev.h"
#include <asm/io.h>
@@ -69,6 +68,8 @@ struct port_info {
struct net_device_stats netstats;
int activity;
__be32 iscsi_ipv4addr;
+
+ int link_fault; /* link fault was detected */
};
enum { /* adapter flags */
@@ -92,6 +93,7 @@ struct rx_sw_desc;
struct sge_fl { /* SGE per free-buffer list state */
unsigned int buf_size; /* size of each Rx buffer */
unsigned int credits; /* # of available Rx buffers */
+ unsigned int pend_cred; /* new buffers since last FL DB ring */
unsigned int size; /* capacity of free list */
unsigned int cidx; /* consumer index */
unsigned int pidx; /* producer index */
@@ -178,15 +180,11 @@ enum { /* per port SGE statistics */
SGE_PSTAT_TX_CSUM, /* # of TX checksum offloads */
SGE_PSTAT_VLANEX, /* # of VLAN tag extractions */
SGE_PSTAT_VLANINS, /* # of VLAN tag insertions */
- SGE_PSTAT_LRO_AGGR, /* # of page chunks added to LRO sessions */
- SGE_PSTAT_LRO_FLUSHED, /* # of flushed LRO sessions */
- SGE_PSTAT_LRO_NO_DESC, /* # of overflown LRO sessions */
SGE_PSTAT_MAX /* must be last */
};
-#define T3_MAX_LRO_SES 8
-#define T3_MAX_LRO_MAX_PKTS 64
+struct napi_gro_fraginfo;
struct sge_qset { /* an SGE queue set */
struct adapter *adap;
@@ -194,17 +192,14 @@ struct sge_qset { /* an SGE queue set */
struct sge_rspq rspq;
struct sge_fl fl[SGE_RXQ_PER_SET];
struct sge_txq txq[SGE_TXQ_PER_SET];
- struct net_lro_mgr lro_mgr;
- struct net_lro_desc lro_desc[T3_MAX_LRO_SES];
- struct skb_frag_struct *lro_frag_tbl;
- int lro_nfrags;
+ struct napi_gro_fraginfo lro_frag_tbl;
int lro_enabled;
- int lro_frag_len;
void *lro_va;
struct net_device *netdev;
struct netdev_queue *tx_q; /* associated netdev TX queue */
unsigned long txq_stopped; /* which Tx queues are stopped */
struct timer_list tx_reclaim_timer; /* reclaims TX buffers */
+ struct timer_list rx_reclaim_timer; /* reclaims RX buffers */
unsigned long port_stats[SGE_PSTAT_MAX];
} ____cacheline_aligned;
@@ -230,6 +225,7 @@ struct adapter {
unsigned int slow_intr_mask;
unsigned long irq_stats[IRQ_NUM_STATS];
+ int msix_nvectors;
struct {
unsigned short vec;
char desc[22];
@@ -247,6 +243,7 @@ struct adapter {
struct delayed_work adap_check_task;
struct work_struct ext_intr_handler_task;
struct work_struct fatal_error_handler_task;
+ struct work_struct link_fault_handler_task;
struct dentry *debugfs_root;
@@ -289,6 +286,8 @@ void t3_os_ext_intr_handler(struct adapter *adapter);
void t3_os_link_changed(struct adapter *adapter, int port_id, int link_status,
int speed, int duplex, int fc);
void t3_os_phymod_changed(struct adapter *adap, int port_id);
+void t3_os_link_fault(struct adapter *adapter, int port_id, int state);
+void t3_os_link_fault_handler(struct adapter *adapter, int port_id);
void t3_sge_start(struct adapter *adap);
void t3_sge_stop(struct adapter *adap);
diff --git a/drivers/net/cxgb3/ael1002.c b/drivers/net/cxgb3/ael1002.c
index 5c3c05da4d9..e1b22490ff5 100644
--- a/drivers/net/cxgb3/ael1002.c
+++ b/drivers/net/cxgb3/ael1002.c
@@ -1005,7 +1005,8 @@ static int ael2005_reset(struct cphy *phy, int wait)
{ 0, 0, 0, 0 }
};
- int err, lasi_ctrl;
+ int err;
+ unsigned int lasi_ctrl;
err = mdio_read(phy, MDIO_DEV_PMA_PMD, LASI_CTRL, &lasi_ctrl);
if (err)
diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h
index db4f4f575b6..9ee021e750c 100644
--- a/drivers/net/cxgb3/common.h
+++ b/drivers/net/cxgb3/common.h
@@ -280,6 +280,7 @@ struct mac_stats {
unsigned long num_toggled; /* # times toggled TxEn due to stuck TX */
unsigned long num_resets; /* # times reset due to stuck TX */
+ unsigned long link_faults; /* # detected link faults */
};
struct tp_mib_stats {
@@ -701,6 +702,8 @@ int t3_phy_lasi_intr_handler(struct cphy *phy);
void t3_intr_enable(struct adapter *adapter);
void t3_intr_disable(struct adapter *adapter);
void t3_intr_clear(struct adapter *adapter);
+void t3_xgm_intr_enable(struct adapter *adapter, int idx);
+void t3_xgm_intr_disable(struct adapter *adapter, int idx);
void t3_port_intr_enable(struct adapter *adapter, int idx);
void t3_port_intr_disable(struct adapter *adapter, int idx);
void t3_port_intr_clear(struct adapter *adapter, int idx);
@@ -708,6 +711,7 @@ int t3_slow_intr_handler(struct adapter *adapter);
int t3_phy_intr_handler(struct adapter *adapter);
void t3_link_changed(struct adapter *adapter, int port_id);
+void t3_link_fault(struct adapter *adapter, int port_id);
int t3_link_start(struct cphy *phy, struct cmac *mac, struct link_config *lc);
const struct adapter_info *t3_get_adapter_info(unsigned int board_id);
int t3_seeprom_read(struct adapter *adapter, u32 addr, __le32 *data);
@@ -744,6 +748,8 @@ int t3_mc7_bd_read(struct mc7 *mc7, unsigned int start, unsigned int n,
int t3_mac_reset(struct cmac *mac);
void t3b_pcs_reset(struct cmac *mac);
+void t3_mac_disable_exact_filters(struct cmac *mac);
+void t3_mac_enable_exact_filters(struct cmac *mac);
int t3_mac_enable(struct cmac *mac, int which);
int t3_mac_disable(struct cmac *mac, int which);
int t3_mac_set_mtu(struct cmac *mac, unsigned int mtu);
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;
diff --git a/drivers/net/cxgb3/cxgb3_offload.c b/drivers/net/cxgb3/cxgb3_offload.c
index 2d7f69aff1d..620d80be6aa 100644
--- a/drivers/net/cxgb3/cxgb3_offload.c
+++ b/drivers/net/cxgb3/cxgb3_offload.c
@@ -153,6 +153,18 @@ void cxgb3_remove_clients(struct t3cdev *tdev)
mutex_unlock(&cxgb3_db_lock);
}
+void cxgb3_err_notify(struct t3cdev *tdev, u32 status, u32 error)
+{
+ struct cxgb3_client *client;
+
+ mutex_lock(&cxgb3_db_lock);
+ list_for_each_entry(client, &client_list, client_list) {
+ if (client->err_handler)
+ client->err_handler(tdev, status, error);
+ }
+ mutex_unlock(&cxgb3_db_lock);
+}
+
static struct net_device *get_iff_from_mac(struct adapter *adapter,
const unsigned char *mac,
unsigned int vlan)
diff --git a/drivers/net/cxgb3/cxgb3_offload.h b/drivers/net/cxgb3/cxgb3_offload.h
index d514e5019df..a8e8e5fcdf8 100644
--- a/drivers/net/cxgb3/cxgb3_offload.h
+++ b/drivers/net/cxgb3/cxgb3_offload.h
@@ -64,10 +64,16 @@ void cxgb3_register_client(struct cxgb3_client *client);
void cxgb3_unregister_client(struct cxgb3_client *client);
void cxgb3_add_clients(struct t3cdev *tdev);
void cxgb3_remove_clients(struct t3cdev *tdev);
+void cxgb3_err_notify(struct t3cdev *tdev, u32 status, u32 error);
typedef int (*cxgb3_cpl_handler_func)(struct t3cdev *dev,
struct sk_buff *skb, void *ctx);
+enum {
+ OFFLOAD_STATUS_UP,
+ OFFLOAD_STATUS_DOWN
+};
+
struct cxgb3_client {
char *name;
void (*add) (struct t3cdev *);
@@ -76,6 +82,7 @@ struct cxgb3_client {
int (*redirect)(void *ctx, struct dst_entry *old,
struct dst_entry *new, struct l2t_entry *l2t);
struct list_head client_list;
+ void (*err_handler)(struct t3cdev *tdev, u32 status, u32 error);
};
/*
diff --git a/drivers/net/cxgb3/regs.h b/drivers/net/cxgb3/regs.h
index a035d5c2444..1b5327b5a96 100644
--- a/drivers/net/cxgb3/regs.h
+++ b/drivers/net/cxgb3/regs.h
@@ -170,6 +170,10 @@
#define S_RSPQ0DISABLED 8
+#define S_FL0EMPTY 16
+#define V_FL0EMPTY(x) ((x) << S_FL0EMPTY)
+#define F_FL0EMPTY V_FL0EMPTY(1U)
+
#define A_SG_EGR_RCQ_DRB_THRSH 0x54
#define S_HIRCQDRBTHRSH 16
@@ -258,6 +262,10 @@
#define V_RSPQCREDITOVERFOW(x) ((x) << S_RSPQCREDITOVERFOW)
#define F_RSPQCREDITOVERFOW V_RSPQCREDITOVERFOW(1U)
+#define S_FLEMPTY 1
+#define V_FLEMPTY(x) ((x) << S_FLEMPTY)
+#define F_FLEMPTY V_FLEMPTY(1U)
+
#define A_SG_INT_ENABLE 0x60
#define A_SG_CMDQ_CREDIT_TH 0x64
@@ -2207,6 +2215,15 @@
#define A_XGM_RX_EXACT_MATCH_LOW_8 0x854
+#define A_XGM_INT_STATUS 0x86c
+
+#define S_LINKFAULTCHANGE 9
+#define V_LINKFAULTCHANGE(x) ((x) << S_LINKFAULTCHANGE)
+#define F_LINKFAULTCHANGE V_LINKFAULTCHANGE(1U)
+
+#define A_XGM_XGM_INT_ENABLE 0x874
+#define A_XGM_XGM_INT_DISABLE 0x878
+
#define A_XGM_STAT_CTRL 0x880
#define S_CLRSTATS 2
@@ -2405,6 +2422,10 @@
#define V_XAUIPCSALIGNCHANGE(x) ((x) << S_XAUIPCSALIGNCHANGE)
#define F_XAUIPCSALIGNCHANGE V_XAUIPCSALIGNCHANGE(1U)
+#define S_XGM_INT 0
+#define V_XGM_INT(x) ((x) << S_XGM_INT)
+#define F_XGM_INT V_XGM_INT(1U)
+
#define A_XGM_INT_CAUSE 0x8d8
#define A_XGM_XAUI_ACT_CTRL 0x8dc
diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c
index d31791f6029..a7555cb3fa4 100644
--- a/drivers/net/cxgb3/sge.c
+++ b/drivers/net/cxgb3/sge.c
@@ -61,12 +61,19 @@
#define FL1_PG_ORDER (PAGE_SIZE > 8192 ? 0 : 1)
#define SGE_RX_DROP_THRES 16
+#define RX_RECLAIM_PERIOD (HZ/4)
/*
+ * Max number of Rx buffers we replenish at a time.
+ */
+#define MAX_RX_REFILL 16U
+/*
* Period of the Tx buffer reclaim timer. This timer does not need to run
* frequently as Tx buffers are usually reclaimed by new Tx packets.
*/
#define TX_RECLAIM_PERIOD (HZ / 4)
+#define TX_RECLAIM_TIMER_CHUNK 64U
+#define TX_RECLAIM_CHUNK 16U
/* WR size in bytes */
#define WR_LEN (WR_FLITS * 8)
@@ -304,21 +311,25 @@ static void free_tx_desc(struct adapter *adapter, struct sge_txq *q,
* reclaim_completed_tx - reclaims completed Tx descriptors
* @adapter: the adapter
* @q: the Tx queue to reclaim completed descriptors from
+ * @chunk: maximum number of descriptors to reclaim
*
* Reclaims Tx descriptors that the SGE has indicated it has processed,
* and frees the associated buffers if possible. Called with the Tx
* queue's lock held.
*/
-static inline void reclaim_completed_tx(struct adapter *adapter,
- struct sge_txq *q)
+static inline unsigned int reclaim_completed_tx(struct adapter *adapter,
+ struct sge_txq *q,
+ unsigned int chunk)
{
unsigned int reclaim = q->processed - q->cleaned;
+ reclaim = min(chunk, reclaim);
if (reclaim) {
free_tx_desc(adapter, q, reclaim);
q->cleaned += reclaim;
q->in_use -= reclaim;
}
+ return q->processed - q->cleaned;
}
/**
@@ -334,6 +345,18 @@ static inline int should_restart_tx(const struct sge_txq *q)
return q->in_use - r < (q->size >> 1);
}
+static void clear_rx_desc(const struct sge_fl *q, struct rx_sw_desc *d)
+{
+ if (q->use_pages) {
+ if (d->pg_chunk.page)
+ put_page(d->pg_chunk.page);
+ d->pg_chunk.page = NULL;
+ } else {
+ kfree_skb(d->skb);
+ d->skb = NULL;
+ }
+}
+
/**
* free_rx_bufs - free the Rx buffers on an SGE free list
* @pdev: the PCI device associated with the adapter
@@ -351,14 +374,7 @@ static void free_rx_bufs(struct pci_dev *pdev, struct sge_fl *q)
pci_unmap_single(pdev, pci_unmap_addr(d, dma_addr),
q->buf_size, PCI_DMA_FROMDEVICE);
- if (q->use_pages) {
- if (d->pg_chunk.page)
- put_page(d->pg_chunk.page);
- d->pg_chunk.page = NULL;
- } else {
- kfree_skb(d->skb);
- d->skb = NULL;
- }
+ clear_rx_desc(q, d);
if (++cidx == q->size)
cidx = 0;
}
@@ -423,6 +439,14 @@ static int alloc_pg_chunk(struct sge_fl *q, struct rx_sw_desc *sd, gfp_t gfp,
return 0;
}
+static inline void ring_fl_db(struct adapter *adap, struct sge_fl *q)
+{
+ if (q->pend_cred >= q->credits / 4) {
+ q->pend_cred = 0;
+ t3_write_reg(adap, A_SG_KDOORBELL, V_EGRCNTX(q->cntxt_id));
+ }
+}
+
/**
* refill_fl - refill an SGE free-buffer list
* @adapter: the adapter
@@ -463,10 +487,7 @@ nomem: q->alloc_failed++;
err = add_one_rx_buf(buf_start, q->buf_size, d, sd, q->gen,
adap->pdev);
if (unlikely(err)) {
- if (!q->use_pages) {
- kfree_skb(sd->skb);
- sd->skb = NULL;
- }
+ clear_rx_desc(q, sd);
break;
}
@@ -478,19 +499,19 @@ nomem: q->alloc_failed++;
sd = q->sdesc;
d = q->desc;
}
- q->credits++;
count++;
}
- wmb();
- if (likely(count))
- t3_write_reg(adap, A_SG_KDOORBELL, V_EGRCNTX(q->cntxt_id));
+
+ q->credits += count;
+ q->pend_cred += count;
+ ring_fl_db(adap, q);
return count;
}
static inline void __refill_fl(struct adapter *adap, struct sge_fl *fl)
{
- refill_fl(adap, fl, min(16U, fl->size - fl->credits),
+ refill_fl(adap, fl, min(MAX_RX_REFILL, fl->size - fl->credits),
GFP_ATOMIC | __GFP_COMP);
}
@@ -515,13 +536,15 @@ static void recycle_rx_buf(struct adapter *adap, struct sge_fl *q,
wmb();
to->len_gen = cpu_to_be32(V_FLD_GEN1(q->gen));
to->gen2 = cpu_to_be32(V_FLD_GEN2(q->gen));
- q->credits++;
if (++q->pidx == q->size) {
q->pidx = 0;
q->gen ^= 1;
}
- t3_write_reg(adap, A_SG_KDOORBELL, V_EGRCNTX(q->cntxt_id));
+
+ q->credits++;
+ q->pend_cred++;
+ ring_fl_db(adap, q);
}
/**
@@ -585,8 +608,8 @@ static void t3_reset_qset(struct sge_qset *q)
memset(q->txq, 0, sizeof(struct sge_txq) * SGE_TXQ_PER_SET);
q->txq_stopped = 0;
q->tx_reclaim_timer.function = NULL; /* for t3_stop_sge_timers() */
- kfree(q->lro_frag_tbl);
- q->lro_nfrags = q->lro_frag_len = 0;
+ q->rx_reclaim_timer.function = NULL;
+ q->lro_frag_tbl.nr_frags = q->lro_frag_tbl.len = 0;
}
@@ -733,7 +756,9 @@ recycle:
return skb;
}
- if (unlikely(fl->credits < drop_thres))
+ if (unlikely(fl->credits < drop_thres) &&
+ refill_fl(adap, fl, min(MAX_RX_REFILL, fl->size - fl->credits - 1),
+ GFP_ATOMIC | __GFP_COMP) == 0)
goto recycle;
use_orig_buf:
@@ -813,14 +838,15 @@ recycle:
len - SGE_RX_PULL_LEN);
newskb->len = len;
newskb->data_len = len - SGE_RX_PULL_LEN;
+ newskb->truesize += newskb->data_len;
} else {
skb_fill_page_desc(newskb, skb_shinfo(newskb)->nr_frags,
sd->pg_chunk.page,
sd->pg_chunk.offset, len);
newskb->len += len;
newskb->data_len += len;
+ newskb->truesize += len;
}
- newskb->truesize += newskb->data_len;
fl->credits--;
/*
@@ -1161,7 +1187,7 @@ int t3_eth_xmit(struct sk_buff *skb, struct net_device *dev)
txq = netdev_get_tx_queue(dev, qidx);
spin_lock(&q->lock);
- reclaim_completed_tx(adap, q);
+ reclaim_completed_tx(adap, q, TX_RECLAIM_CHUNK);
credits = q->size - q->in_use;
ndesc = calc_tx_descs(skb);
@@ -1570,7 +1596,7 @@ static int ofld_xmit(struct adapter *adap, struct sge_txq *q,
unsigned int ndesc = calc_tx_descs_ofld(skb), pidx, gen;
spin_lock(&q->lock);
- again:reclaim_completed_tx(adap, q);
+again: reclaim_completed_tx(adap, q, TX_RECLAIM_CHUNK);
ret = check_desc_avail(adap, q, skb, ndesc, TXQ_OFLD);
if (unlikely(ret)) {
@@ -1612,7 +1638,7 @@ static void restart_offloadq(unsigned long data)
struct adapter *adap = pi->adapter;
spin_lock(&q->lock);
- again:reclaim_completed_tx(adap, q);
+again: reclaim_completed_tx(adap, q, TX_RECLAIM_CHUNK);
while ((skb = skb_peek(&q->sendq)) != NULL) {
unsigned int gen, pidx;
@@ -1938,6 +1964,7 @@ static void rx_eth(struct adapter *adap, struct sge_rspq *rq,
skb->ip_summed = CHECKSUM_UNNECESSARY;
} else
skb->ip_summed = CHECKSUM_NONE;
+ skb_record_rx_queue(skb, qs - &adap->sge.qs[0]);
if (unlikely(p->vlan_valid)) {
struct vlan_group *grp = pi->vlan_grp;
@@ -1945,10 +1972,8 @@ static void rx_eth(struct adapter *adap, struct sge_rspq *rq,
qs->port_stats[SGE_PSTAT_VLANEX]++;
if (likely(grp))
if (lro)
- lro_vlan_hwaccel_receive_skb(&qs->lro_mgr, skb,
- grp,
- ntohs(p->vlan),
- p);
+ vlan_gro_receive(&qs->napi, grp,
+ ntohs(p->vlan), skb);
else {
if (unlikely(pi->iscsi_ipv4addr &&
is_arp(skb))) {
@@ -1965,7 +1990,7 @@ static void rx_eth(struct adapter *adap, struct sge_rspq *rq,
dev_kfree_skb_any(skb);
} else if (rq->polling) {
if (lro)
- lro_receive_skb(&qs->lro_mgr, skb, p);
+ napi_gro_receive(&qs->napi, skb);
else {
if (unlikely(pi->iscsi_ipv4addr && is_arp(skb)))
cxgb3_arp_process(adap, skb);
@@ -1981,59 +2006,6 @@ static inline int is_eth_tcp(u32 rss)
}
/**
- * lro_frame_ok - check if an ingress packet is eligible for LRO
- * @p: the CPL header of the packet
- *
- * Returns true if a received packet is eligible for LRO.
- * The following conditions must be true:
- * - packet is TCP/IP Ethernet II (checked elsewhere)
- * - not an IP fragment
- * - no IP options
- * - TCP/IP checksums are correct
- * - the packet is for this host
- */
-static inline int lro_frame_ok(const struct cpl_rx_pkt *p)
-{
- const struct ethhdr *eh = (struct ethhdr *)(p + 1);
- const struct iphdr *ih = (struct iphdr *)(eh + 1);
-
- return (*((u8 *)p + 1) & 0x90) == 0x10 && p->csum == htons(0xffff) &&
- eh->h_proto == htons(ETH_P_IP) && ih->ihl == (sizeof(*ih) >> 2);
-}
-
-static int t3_get_lro_header(void **eh, void **iph, void **tcph,
- u64 *hdr_flags, void *priv)
-{
- const struct cpl_rx_pkt *cpl = priv;
-
- if (!lro_frame_ok(cpl))
- return -1;
-
- *eh = (struct ethhdr *)(cpl + 1);
- *iph = (struct iphdr *)((struct ethhdr *)*eh + 1);
- *tcph = (struct tcphdr *)((struct iphdr *)*iph + 1);
-
- *hdr_flags = LRO_IPV4 | LRO_TCP;
- return 0;
-}
-
-static int t3_get_skb_header(struct sk_buff *skb,
- void **iph, void **tcph, u64 *hdr_flags,
- void *priv)
-{
- void *eh;
-
- return t3_get_lro_header(&eh, iph, tcph, hdr_flags, priv);
-}
-
-static int t3_get_frag_header(struct skb_frag_struct *frag, void **eh,
- void **iph, void **tcph, u64 *hdr_flags,
- void *priv)
-{
- return t3_get_lro_header(eh, iph, tcph, hdr_flags, priv);
-}
-
-/**
* lro_add_page - add a page chunk to an LRO session
* @adap: the adapter
* @qs: the associated queue set
@@ -2049,8 +2021,9 @@ static void lro_add_page(struct adapter *adap, struct sge_qset *qs,
{
struct rx_sw_desc *sd = &fl->sdesc[fl->cidx];
struct cpl_rx_pkt *cpl;
- struct skb_frag_struct *rx_frag = qs->lro_frag_tbl;
- int nr_frags = qs->lro_nfrags, frag_len = qs->lro_frag_len;
+ struct skb_frag_struct *rx_frag = qs->lro_frag_tbl.frags;
+ int nr_frags = qs->lro_frag_tbl.nr_frags;
+ int frag_len = qs->lro_frag_tbl.len;
int offset = 0;
if (!nr_frags) {
@@ -2064,18 +2037,20 @@ static void lro_add_page(struct adapter *adap, struct sge_qset *qs,
pci_unmap_single(adap->pdev, pci_unmap_addr(sd, dma_addr),
fl->buf_size, PCI_DMA_FROMDEVICE);
+ prefetch(&qs->lro_frag_tbl);
+
rx_frag += nr_frags;
rx_frag->page = sd->pg_chunk.page;
rx_frag->page_offset = sd->pg_chunk.offset + offset;
rx_frag->size = len;
frag_len += len;
- qs->lro_nfrags++;
- qs->lro_frag_len = frag_len;
+ qs->lro_frag_tbl.nr_frags++;
+ qs->lro_frag_tbl.len = frag_len;
if (!complete)
return;
- qs->lro_nfrags = qs->lro_frag_len = 0;
+ qs->lro_frag_tbl.ip_summed = CHECKSUM_UNNECESSARY;
cpl = qs->lro_va;
if (unlikely(cpl->vlan_valid)) {
@@ -2084,36 +2059,15 @@ static void lro_add_page(struct adapter *adap, struct sge_qset *qs,
struct vlan_group *grp = pi->vlan_grp;
if (likely(grp != NULL)) {
- lro_vlan_hwaccel_receive_frags(&qs->lro_mgr,
- qs->lro_frag_tbl,
- frag_len, frag_len,
- grp, ntohs(cpl->vlan),
- cpl, 0);
- return;
+ vlan_gro_frags(&qs->napi, grp, ntohs(cpl->vlan),
+ &qs->lro_frag_tbl);
+ goto out;
}
}
- lro_receive_frags(&qs->lro_mgr, qs->lro_frag_tbl,
- frag_len, frag_len, cpl, 0);
-}
+ napi_gro_frags(&qs->napi, &qs->lro_frag_tbl);
-/**
- * init_lro_mgr - initialize a LRO manager object
- * @lro_mgr: the LRO manager object
- */
-static void init_lro_mgr(struct sge_qset *qs, struct net_lro_mgr *lro_mgr)
-{
- lro_mgr->dev = qs->netdev;
- lro_mgr->features = LRO_F_NAPI;
- lro_mgr->frag_align_pad = NET_IP_ALIGN;
- lro_mgr->ip_summed = CHECKSUM_UNNECESSARY;
- lro_mgr->ip_summed_aggr = CHECKSUM_UNNECESSARY;
- lro_mgr->max_desc = T3_MAX_LRO_SES;
- lro_mgr->lro_arr = qs->lro_desc;
- lro_mgr->get_frag_header = t3_get_frag_header;
- lro_mgr->get_skb_header = t3_get_skb_header;
- lro_mgr->max_aggr = T3_MAX_LRO_MAX_PKTS;
- if (lro_mgr->max_aggr > MAX_SKB_FRAGS)
- lro_mgr->max_aggr = MAX_SKB_FRAGS;
+out:
+ qs->lro_frag_tbl.nr_frags = qs->lro_frag_tbl.len = 0;
}
/**
@@ -2356,10 +2310,6 @@ next_fl:
}
deliver_partial_bundle(&adap->tdev, q, offload_skbs, ngathered);
- lro_flush_all(&qs->lro_mgr);
- qs->port_stats[SGE_PSTAT_LRO_AGGR] = qs->lro_mgr.stats.aggregated;
- qs->port_stats[SGE_PSTAT_LRO_FLUSHED] = qs->lro_mgr.stats.flushed;
- qs->port_stats[SGE_PSTAT_LRO_NO_DESC] = qs->lro_mgr.stats.no_desc;
if (sleeping)
check_ring_db(adap, qs, sleeping);
@@ -2775,7 +2725,8 @@ irq_handler_t t3_intr_handler(struct adapter *adap, int polling)
*/
void t3_sge_err_intr_handler(struct adapter *adapter)
{
- unsigned int v, status = t3_read_reg(adapter, A_SG_INT_CAUSE);
+ unsigned int v, status = t3_read_reg(adapter, A_SG_INT_CAUSE) &
+ ~F_FLEMPTY;
if (status & SGE_PARERR)
CH_ALERT(adapter, "SGE parity error (0x%x)\n",
@@ -2805,13 +2756,13 @@ void t3_sge_err_intr_handler(struct adapter *adapter)
}
/**
- * sge_timer_cb - perform periodic maintenance of an SGE qset
+ * sge_timer_tx - perform periodic maintenance of an SGE qset
* @data: the SGE queue set to maintain
*
* Runs periodically from a timer to perform maintenance of an SGE queue
* set. It performs two tasks:
*
- * a) Cleans up any completed Tx descriptors that may still be pending.
+ * Cleans up any completed Tx descriptors that may still be pending.
* Normal descriptor cleanup happens when new packets are added to a Tx
* queue so this timer is relatively infrequent and does any cleanup only
* if the Tx queue has not seen any new packets in a while. We make a
@@ -2821,51 +2772,87 @@ void t3_sge_err_intr_handler(struct adapter *adapter)
* up). Since control queues use immediate data exclusively we don't
* bother cleaning them up here.
*
- * b) Replenishes Rx queues that have run out due to memory shortage.
- * Normally new Rx buffers are added when existing ones are consumed but
- * when out of memory a queue can become empty. We try to add only a few
- * buffers here, the queue will be replenished fully as these new buffers
- * are used up if memory shortage has subsided.
*/
-static void sge_timer_cb(unsigned long data)
+static void sge_timer_tx(unsigned long data)
{
- spinlock_t *lock;
struct sge_qset *qs = (struct sge_qset *)data;
- struct adapter *adap = qs->adap;
+ struct port_info *pi = netdev_priv(qs->netdev);
+ struct adapter *adap = pi->adapter;
+ unsigned int tbd[SGE_TXQ_PER_SET] = {0, 0};
+ unsigned long next_period;
if (spin_trylock(&qs->txq[TXQ_ETH].lock)) {
- reclaim_completed_tx(adap, &qs->txq[TXQ_ETH]);
+ tbd[TXQ_ETH] = reclaim_completed_tx(adap, &qs->txq[TXQ_ETH],
+ TX_RECLAIM_TIMER_CHUNK);
spin_unlock(&qs->txq[TXQ_ETH].lock);
}
if (spin_trylock(&qs->txq[TXQ_OFLD].lock)) {
- reclaim_completed_tx(adap, &qs->txq[TXQ_OFLD]);
+ tbd[TXQ_OFLD] = reclaim_completed_tx(adap, &qs->txq[TXQ_OFLD],
+ TX_RECLAIM_TIMER_CHUNK);
spin_unlock(&qs->txq[TXQ_OFLD].lock);
}
- lock = (adap->flags & USING_MSIX) ? &qs->rspq.lock :
- &adap->sge.qs[0].rspq.lock;
- if (spin_trylock_irq(lock)) {
- if (!napi_is_scheduled(&qs->napi)) {
- u32 status = t3_read_reg(adap, A_SG_RSPQ_FL_STATUS);
-
- if (qs->fl[0].credits < qs->fl[0].size)
- __refill_fl(adap, &qs->fl[0]);
- if (qs->fl[1].credits < qs->fl[1].size)
- __refill_fl(adap, &qs->fl[1]);
-
- if (status & (1 << qs->rspq.cntxt_id)) {
- qs->rspq.starved++;
- if (qs->rspq.credits) {
- refill_rspq(adap, &qs->rspq, 1);
- qs->rspq.credits--;
- qs->rspq.restarted++;
- t3_write_reg(adap, A_SG_RSPQ_FL_STATUS,
- 1 << qs->rspq.cntxt_id);
- }
+
+ next_period = TX_RECLAIM_PERIOD >>
+ (max(tbd[TXQ_ETH], tbd[TXQ_OFLD]) /
+ TX_RECLAIM_TIMER_CHUNK);
+ mod_timer(&qs->tx_reclaim_timer, jiffies + next_period);
+}
+
+/*
+ * sge_timer_rx - perform periodic maintenance of an SGE qset
+ * @data: the SGE queue set to maintain
+ *
+ * a) Replenishes Rx queues that have run out due to memory shortage.
+ * Normally new Rx buffers are added when existing ones are consumed but
+ * when out of memory a queue can become empty. We try to add only a few
+ * buffers here, the queue will be replenished fully as these new buffers
+ * are used up if memory shortage has subsided.
+ *
+ * b) Return coalesced response queue credits in case a response queue is
+ * starved.
+ *
+ */
+static void sge_timer_rx(unsigned long data)
+{
+ spinlock_t *lock;
+ struct sge_qset *qs = (struct sge_qset *)data;
+ struct port_info *pi = netdev_priv(qs->netdev);
+ struct adapter *adap = pi->adapter;
+ u32 status;
+
+ lock = adap->params.rev > 0 ?
+ &qs->rspq.lock : &adap->sge.qs[0].rspq.lock;
+
+ if (!spin_trylock_irq(lock))
+ goto out;
+
+ if (napi_is_scheduled(&qs->napi))
+ goto unlock;
+
+ if (adap->params.rev < 4) {
+ status = t3_read_reg(adap, A_SG_RSPQ_FL_STATUS);
+
+ if (status & (1 << qs->rspq.cntxt_id)) {
+ qs->rspq.starved++;
+ if (qs->rspq.credits) {
+ qs->rspq.credits--;
+ refill_rspq(adap, &qs->rspq, 1);
+ qs->rspq.restarted++;
+ t3_write_reg(adap, A_SG_RSPQ_FL_STATUS,
+ 1 << qs->rspq.cntxt_id);
}
}
- spin_unlock_irq(lock);
}
- mod_timer(&qs->tx_reclaim_timer, jiffies + TX_RECLAIM_PERIOD);
+
+ if (qs->fl[0].credits < qs->fl[0].size)
+ __refill_fl(adap, &qs->fl[0]);
+ if (qs->fl[1].credits < qs->fl[1].size)
+ __refill_fl(adap, &qs->fl[1]);
+
+unlock:
+ spin_unlock_irq(lock);
+out:
+ mod_timer(&qs->rx_reclaim_timer, jiffies + RX_RECLAIM_PERIOD);
}
/**
@@ -2906,10 +2893,10 @@ int t3_sge_alloc_qset(struct adapter *adapter, unsigned int id, int nports,
{
int i, avail, ret = -ENOMEM;
struct sge_qset *q = &adapter->sge.qs[id];
- struct net_lro_mgr *lro_mgr = &q->lro_mgr;
init_qset_cntxt(q, id);
- setup_timer(&q->tx_reclaim_timer, sge_timer_cb, (unsigned long)q);
+ setup_timer(&q->tx_reclaim_timer, sge_timer_tx, (unsigned long)q);
+ setup_timer(&q->rx_reclaim_timer, sge_timer_rx, (unsigned long)q);
q->fl[0].desc = alloc_ring(adapter->pdev, p->fl_size,
sizeof(struct rx_desc),
@@ -2986,10 +2973,6 @@ int t3_sge_alloc_qset(struct adapter *adapter, unsigned int id, int nports,
q->fl[0].order = FL0_PG_ORDER;
q->fl[1].order = FL1_PG_ORDER;
- q->lro_frag_tbl = kcalloc(MAX_FRAME_SIZE / FL1_PG_CHUNK_SIZE + 1,
- sizeof(struct skb_frag_struct),
- GFP_KERNEL);
- q->lro_nfrags = q->lro_frag_len = 0;
spin_lock_irq(&adapter->sge.reg_lock);
/* FL threshold comparison uses < */
@@ -3041,8 +3024,6 @@ int t3_sge_alloc_qset(struct adapter *adapter, unsigned int id, int nports,
q->tx_q = netdevq;
t3_update_qset_coalesce(q, p);
- init_lro_mgr(q, lro_mgr);
-
avail = refill_fl(adapter, &q->fl[0], q->fl[0].size,
GFP_KERNEL | __GFP_COMP);
if (!avail) {
@@ -3064,6 +3045,8 @@ int t3_sge_alloc_qset(struct adapter *adapter, unsigned int id, int nports,
V_NEWTIMER(q->rspq.holdoff_tmr));
mod_timer(&q->tx_reclaim_timer, jiffies + TX_RECLAIM_PERIOD);
+ mod_timer(&q->rx_reclaim_timer, jiffies + RX_RECLAIM_PERIOD);
+
return 0;
err_unlock:
@@ -3088,6 +3071,8 @@ void t3_stop_sge_timers(struct adapter *adap)
if (q->tx_reclaim_timer.function)
del_timer_sync(&q->tx_reclaim_timer);
+ if (q->rx_reclaim_timer.function)
+ del_timer_sync(&q->rx_reclaim_timer);
}
}
diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index ac2a974dfe3..ff262a04ded 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -1153,6 +1153,38 @@ int t3_cim_ctl_blk_read(struct adapter *adap, unsigned int addr,
return ret;
}
+static void t3_gate_rx_traffic(struct cmac *mac, u32 *rx_cfg,
+ u32 *rx_hash_high, u32 *rx_hash_low)
+{
+ /* stop Rx unicast traffic */
+ t3_mac_disable_exact_filters(mac);
+
+ /* stop broadcast, multicast, promiscuous mode traffic */
+ *rx_cfg = t3_read_reg(mac->adapter, A_XGM_RX_CFG);
+ t3_set_reg_field(mac->adapter, A_XGM_RX_CFG,
+ F_ENHASHMCAST | F_DISBCAST | F_COPYALLFRAMES,
+ F_DISBCAST);
+
+ *rx_hash_high = t3_read_reg(mac->adapter, A_XGM_RX_HASH_HIGH);
+ t3_write_reg(mac->adapter, A_XGM_RX_HASH_HIGH, 0);
+
+ *rx_hash_low = t3_read_reg(mac->adapter, A_XGM_RX_HASH_LOW);
+ t3_write_reg(mac->adapter, A_XGM_RX_HASH_LOW, 0);
+
+ /* Leave time to drain max RX fifo */
+ msleep(1);
+}
+
+static void t3_open_rx_traffic(struct cmac *mac, u32 rx_cfg,
+ u32 rx_hash_high, u32 rx_hash_low)
+{
+ t3_mac_enable_exact_filters(mac);
+ t3_set_reg_field(mac->adapter, A_XGM_RX_CFG,
+ F_ENHASHMCAST | F_DISBCAST | F_COPYALLFRAMES,
+ rx_cfg);
+ t3_write_reg(mac->adapter, A_XGM_RX_HASH_HIGH, rx_hash_high);
+ t3_write_reg(mac->adapter, A_XGM_RX_HASH_LOW, rx_hash_low);
+}
/**
* t3_link_changed - handle interface link changes
@@ -1170,9 +1202,32 @@ void t3_link_changed(struct adapter *adapter, int port_id)
struct cphy *phy = &pi->phy;
struct cmac *mac = &pi->mac;
struct link_config *lc = &pi->link_config;
+ int force_link_down = 0;
phy->ops->get_link_status(phy, &link_ok, &speed, &duplex, &fc);
+ if (!lc->link_ok && link_ok) {
+ u32 rx_cfg, rx_hash_high, rx_hash_low;
+ u32 status;
+
+ t3_xgm_intr_enable(adapter, port_id);
+ t3_gate_rx_traffic(mac, &rx_cfg, &rx_hash_high, &rx_hash_low);
+ t3_write_reg(adapter, A_XGM_RX_CTRL + mac->offset, 0);
+ t3_mac_enable(mac, MAC_DIRECTION_RX);
+
+ status = t3_read_reg(adapter, A_XGM_INT_STATUS + mac->offset);
+ if (status & F_LINKFAULTCHANGE) {
+ mac->stats.link_faults++;
+ force_link_down = 1;
+ }
+ t3_open_rx_traffic(mac, rx_cfg, rx_hash_high, rx_hash_low);
+
+ if (force_link_down) {
+ t3_os_link_fault_handler(adapter, port_id);
+ return;
+ }
+ }
+
if (lc->requested_fc & PAUSE_AUTONEG)
fc &= lc->requested_fc;
else
@@ -1202,6 +1257,57 @@ void t3_link_changed(struct adapter *adapter, int port_id)
t3_os_link_changed(adapter, port_id, link_ok, speed, duplex, fc);
}
+void t3_link_fault(struct adapter *adapter, int port_id)
+{
+ struct port_info *pi = adap2pinfo(adapter, port_id);
+ struct cmac *mac = &pi->mac;
+ struct cphy *phy = &pi->phy;
+ struct link_config *lc = &pi->link_config;
+ int link_ok, speed, duplex, fc, link_fault;
+ u32 rx_cfg, rx_hash_high, rx_hash_low;
+
+ t3_gate_rx_traffic(mac, &rx_cfg, &rx_hash_high, &rx_hash_low);
+
+ if (adapter->params.rev > 0 && uses_xaui(adapter))
+ t3_write_reg(adapter, A_XGM_XAUI_ACT_CTRL + mac->offset, 0);
+
+ t3_write_reg(adapter, A_XGM_RX_CTRL + mac->offset, 0);
+ t3_mac_enable(mac, MAC_DIRECTION_RX);
+
+ t3_open_rx_traffic(mac, rx_cfg, rx_hash_high, rx_hash_low);
+
+ link_fault = t3_read_reg(adapter,
+ A_XGM_INT_STATUS + mac->offset);
+ link_fault &= F_LINKFAULTCHANGE;
+
+ phy->ops->get_link_status(phy, &link_ok, &speed, &duplex, &fc);
+
+ if (link_fault) {
+ lc->link_ok = 0;
+ lc->speed = SPEED_INVALID;
+ lc->duplex = DUPLEX_INVALID;
+
+ t3_os_link_fault(adapter, port_id, 0);
+
+ /* Account link faults only when the phy reports a link up */
+ if (link_ok)
+ mac->stats.link_faults++;
+
+ msleep(1000);
+ t3_os_link_fault_handler(adapter, port_id);
+ } else {
+ if (link_ok)
+ t3_write_reg(adapter, A_XGM_XAUI_ACT_CTRL + mac->offset,
+ F_TXACTENABLE | F_RXEN);
+
+ pi->link_fault = 0;
+ lc->link_ok = (unsigned char)link_ok;
+ lc->speed = speed < 0 ? SPEED_INVALID : speed;
+ lc->duplex = duplex < 0 ? DUPLEX_INVALID : duplex;
+ t3_os_link_fault(adapter, port_id, link_ok);
+ }
+}
+
/**
* t3_link_start - apply link configuration to MAC/PHY
* @phy: the PHY to setup
@@ -1323,7 +1429,7 @@ static int t3_handle_intr_status(struct adapter *adapter, unsigned int reg,
#define MC7_INTR_MASK (F_AE | F_UE | F_CE | V_PE(M_PE))
#define XGM_INTR_MASK (V_TXFIFO_PRTY_ERR(M_TXFIFO_PRTY_ERR) | \
V_RXFIFO_PRTY_ERR(M_RXFIFO_PRTY_ERR) | \
- F_TXFIFO_UNDERRUN | F_RXFIFO_OVERFLOW)
+ F_TXFIFO_UNDERRUN)
#define PCIX_INTR_MASK (F_MSTDETPARERR | F_SIGTARABT | F_RCVTARABT | \
F_RCVMSTABT | F_SIGSYSERR | F_DETPARERR | \
F_SPLCMPDIS | F_UNXSPLCMP | F_RCVSPLCMPERR | \
@@ -1360,11 +1466,11 @@ static int t3_handle_intr_status(struct adapter *adapter, unsigned int reg,
V_TX1TPPARERRENB(M_TX1TPPARERRENB) | \
V_RXTPPARERRENB(M_RXTPPARERRENB) | \
V_MCAPARERRENB(M_MCAPARERRENB))
+#define XGM_EXTRA_INTR_MASK (F_LINKFAULTCHANGE)
#define PL_INTR_MASK (F_T3DBG | F_XGMAC0_0 | F_XGMAC0_1 | F_MC5A | F_PM1_TX | \
F_PM1_RX | F_ULP2_TX | F_ULP2_RX | F_TP1 | F_CIM | \
F_MC7_CM | F_MC7_PMTX | F_MC7_PMRX | F_SGE3 | F_PCIM0 | \
F_MPS0 | F_CPL_SWITCH)
-
/*
* Interrupt handler for the PCIX1 module.
*/
@@ -1695,7 +1801,14 @@ static void mc7_intr_handler(struct mc7 *mc7)
static int mac_intr_handler(struct adapter *adap, unsigned int idx)
{
struct cmac *mac = &adap2pinfo(adap, idx)->mac;
- u32 cause = t3_read_reg(adap, A_XGM_INT_CAUSE + mac->offset);
+ /*
+ * We mask out interrupt causes for which we're not taking interrupts.
+ * This allows us to use polling logic to monitor some of the other
+ * conditions when taking interrupts would impose too much load on the
+ * system.
+ */
+ u32 cause = t3_read_reg(adap, A_XGM_INT_CAUSE + mac->offset) &
+ ~F_RXFIFO_OVERFLOW;
if (cause & V_TXFIFO_PRTY_ERR(M_TXFIFO_PRTY_ERR)) {
mac->stats.tx_fifo_parity_err++;
@@ -1715,10 +1828,20 @@ static int mac_intr_handler(struct adapter *adap, unsigned int idx)
mac->stats.xaui_pcs_ctc_err++;
if (cause & F_XAUIPCSALIGNCHANGE)
mac->stats.xaui_pcs_align_change++;
+ if (cause & F_XGM_INT) {
+ t3_set_reg_field(adap,
+ A_XGM_INT_ENABLE + mac->offset,
+ F_XGM_INT, 0);
+ mac->stats.link_faults++;
+
+ t3_os_link_fault_handler(adap, idx);
+ }
t3_write_reg(adap, A_XGM_INT_CAUSE + mac->offset, cause);
+
if (cause & XGM_INTR_FATAL)
t3_fatal_err(adap);
+
return cause != 0;
}
@@ -1924,6 +2047,22 @@ void t3_intr_clear(struct adapter *adapter)
t3_read_reg(adapter, A_PL_INT_CAUSE0); /* flush */
}
+void t3_xgm_intr_enable(struct adapter *adapter, int idx)
+{
+ struct port_info *pi = adap2pinfo(adapter, idx);
+
+ t3_write_reg(adapter, A_XGM_XGM_INT_ENABLE + pi->mac.offset,
+ XGM_EXTRA_INTR_MASK);
+}
+
+void t3_xgm_intr_disable(struct adapter *adapter, int idx)
+{
+ struct port_info *pi = adap2pinfo(adapter, idx);
+
+ t3_write_reg(adapter, A_XGM_XGM_INT_DISABLE + pi->mac.offset,
+ 0x7ff);
+}
+
/**
* t3_port_intr_enable - enable port-specific interrupts
* @adapter: associated adapter
@@ -3617,7 +3756,15 @@ int t3_prep_adapter(struct adapter *adapter, const struct adapter_info *ai,
adapter->params.info = ai;
adapter->params.nports = ai->nports;
adapter->params.rev = t3_read_reg(adapter, A_PL_REV);
- adapter->params.linkpoll_period = 0;
+ /*
+ * We used to only run the "adapter check task" once a second if
+ * we had PHYs which didn't support interrupts (we would check
+ * their link status once a second). Now we check other conditions
+ * in that routine which could potentially impose a very high
+ * interrupt load on the system. As such, we now always scan the
+ * adapter state once a second ...
+ */
+ adapter->params.linkpoll_period = 10;
adapter->params.stats_update_period = is_10G(adapter) ?
MAC_STATS_ACCUM_SECS : (MAC_STATS_ACCUM_SECS * 10);
adapter->params.pci.vpd_cap_addr =
@@ -3707,7 +3854,14 @@ int t3_prep_adapter(struct adapter *adapter, const struct adapter_info *ai,
ETH_ALEN);
init_link_config(&p->link_config, p->phy.caps);
p->phy.ops->power_down(&p->phy, 1);
- if (!(p->phy.caps & SUPPORTED_IRQ))
+
+ /*
+ * If the PHY doesn't support interrupts for link status
+ * changes, schedule a scan of the adapter links at least
+ * once a second.
+ */
+ if (!(p->phy.caps & SUPPORTED_IRQ) &&
+ adapter->params.linkpoll_period > 10)
adapter->params.linkpoll_period = 10;
}
diff --git a/drivers/net/cxgb3/version.h b/drivers/net/cxgb3/version.h
index b1b25c37aa1..7bf963ec554 100644
--- a/drivers/net/cxgb3/version.h
+++ b/drivers/net/cxgb3/version.h
@@ -35,10 +35,10 @@
#define DRV_DESC "Chelsio T3 Network Driver"
#define DRV_NAME "cxgb3"
/* Driver version */
-#define DRV_VERSION "1.1.1-ko"
+#define DRV_VERSION "1.1.2-ko"
/* Firmware version */
#define FW_VERSION_MAJOR 7
-#define FW_VERSION_MINOR 0
+#define FW_VERSION_MINOR 1
#define FW_VERSION_MICRO 0
#endif /* __CHELSIO_VERSION_H */
diff --git a/drivers/net/cxgb3/xgmac.c b/drivers/net/cxgb3/xgmac.c
index 9d7786937aa..f87f9435049 100644
--- a/drivers/net/cxgb3/xgmac.c
+++ b/drivers/net/cxgb3/xgmac.c
@@ -150,7 +150,8 @@ int t3_mac_reset(struct cmac *mac)
static int t3b2_mac_reset(struct cmac *mac)
{
struct adapter *adap = mac->adapter;
- unsigned int oft = mac->offset;
+ unsigned int oft = mac->offset, store;
+ int idx = macidx(mac);
u32 val;
if (!macidx(mac))
@@ -158,14 +159,28 @@ static int t3b2_mac_reset(struct cmac *mac)
else
t3_set_reg_field(adap, A_MPS_CFG, F_PORT1ACTIVE, 0);
+ /* Stop NIC traffic to reduce the number of TXTOGGLES */
+ t3_set_reg_field(adap, A_MPS_CFG, F_ENFORCEPKT, 0);
+ /* Ensure TX drains */
+ t3_set_reg_field(adap, A_XGM_TX_CFG + oft, F_TXPAUSEEN, 0);
+
t3_write_reg(adap, A_XGM_RESET_CTRL + oft, F_MAC_RESET_);
t3_read_reg(adap, A_XGM_RESET_CTRL + oft); /* flush */
+ /* Store A_TP_TX_DROP_CFG_CH0 */
+ t3_write_reg(adap, A_TP_PIO_ADDR, A_TP_TX_DROP_CFG_CH0 + idx);
+ store = t3_read_reg(adap, A_TP_TX_DROP_CFG_CH0 + idx);
+
msleep(10);
+ /* Change DROP_CFG to 0xc0000011 */
+ t3_write_reg(adap, A_TP_PIO_ADDR, A_TP_TX_DROP_CFG_CH0 + idx);
+ t3_write_reg(adap, A_TP_PIO_DATA, 0xc0000011);
+
/* Check for xgm Rx fifo empty */
+ /* Increased loop count to 1000 from 5 cover 1G and 100Mbps case */
if (t3_wait_op_done(adap, A_XGM_RX_MAX_PKT_SIZE_ERR_CNT + oft,
- 0x80000000, 1, 5, 2)) {
+ 0x80000000, 1, 1000, 2)) {
CH_ERR(adap, "MAC %d Rx fifo drain failed\n",
macidx(mac));
return -1;
@@ -191,11 +206,21 @@ static int t3b2_mac_reset(struct cmac *mac)
F_DISPAUSEFRAMES | F_EN1536BFRAMES |
F_RMFCS | F_ENJUMBO | F_ENHASHMCAST);
- if (!macidx(mac))
+ /* Restore the DROP_CFG */
+ t3_write_reg(adap, A_TP_PIO_ADDR, A_TP_TX_DROP_CFG_CH0 + idx);
+ t3_write_reg(adap, A_TP_PIO_DATA, store);
+
+ if (!idx)
t3_set_reg_field(adap, A_MPS_CFG, 0, F_PORT0ACTIVE);
else
t3_set_reg_field(adap, A_MPS_CFG, 0, F_PORT1ACTIVE);
+ /* re-enable nic traffic */
+ t3_set_reg_field(adap, A_MPS_CFG, F_ENFORCEPKT, 1);
+
+ /* Set: re-enable NIC traffic */
+ t3_set_reg_field(adap, A_MPS_CFG, F_ENFORCEPKT, 1);
+
return 0;
}
@@ -236,7 +261,7 @@ int t3_mac_set_num_ucast(struct cmac *mac, int n)
return 0;
}
-static void disable_exact_filters(struct cmac *mac)
+void t3_mac_disable_exact_filters(struct cmac *mac)
{
unsigned int i, reg = mac->offset + A_XGM_RX_EXACT_MATCH_LOW_1;
@@ -247,7 +272,7 @@ static void disable_exact_filters(struct cmac *mac)
t3_read_reg(mac->adapter, A_XGM_RX_EXACT_MATCH_LOW_1); /* flush */
}
-static void enable_exact_filters(struct cmac *mac)
+void t3_mac_enable_exact_filters(struct cmac *mac)
{
unsigned int i, reg = mac->offset + A_XGM_RX_EXACT_MATCH_HIGH_1;
@@ -332,18 +357,9 @@ int t3_mac_set_mtu(struct cmac *mac, unsigned int mtu)
return -EINVAL;
t3_write_reg(adap, A_XGM_RX_MAX_PKT_SIZE + mac->offset, mtu);
- /*
- * Adjust the PAUSE frame watermarks. We always set the LWM, and the
- * HWM only if flow-control is enabled.
- */
- hwm = max_t(unsigned int, MAC_RXFIFO_SIZE - 3 * mtu,
- MAC_RXFIFO_SIZE * 38 / 100);
- hwm = min(hwm, MAC_RXFIFO_SIZE - 8192);
- lwm = min(3 * (int)mtu, MAC_RXFIFO_SIZE / 4);
-
if (adap->params.rev >= T3_REV_B2 &&
(t3_read_reg(adap, A_XGM_RX_CTRL + mac->offset) & F_RXEN)) {
- disable_exact_filters(mac);
+ t3_mac_disable_exact_filters(mac);
v = t3_read_reg(adap, A_XGM_RX_CFG + mac->offset);
t3_set_reg_field(adap, A_XGM_RX_CFG + mac->offset,
F_ENHASHMCAST | F_COPYALLFRAMES, F_DISBCAST);
@@ -355,14 +371,14 @@ int t3_mac_set_mtu(struct cmac *mac, unsigned int mtu)
if (t3_wait_op_done(adap, reg + mac->offset,
F_RXFIFO_EMPTY, 1, 20, 5)) {
t3_write_reg(adap, A_XGM_RX_CFG + mac->offset, v);
- enable_exact_filters(mac);
+ t3_mac_enable_exact_filters(mac);
return -EIO;
}
t3_set_reg_field(adap, A_XGM_RX_MAX_PKT_SIZE + mac->offset,
V_RXMAXPKTSIZE(M_RXMAXPKTSIZE),
V_RXMAXPKTSIZE(mtu));
t3_write_reg(adap, A_XGM_RX_CFG + mac->offset, v);
- enable_exact_filters(mac);
+ t3_mac_enable_exact_filters(mac);
} else
t3_set_reg_field(adap, A_XGM_RX_MAX_PKT_SIZE + mac->offset,
V_RXMAXPKTSIZE(M_RXMAXPKTSIZE),
@@ -452,9 +468,12 @@ int t3_mac_enable(struct cmac *mac, int which)
if (which & MAC_DIRECTION_TX) {
t3_write_reg(adap, A_TP_PIO_ADDR, A_TP_TX_DROP_CFG_CH0 + idx);
- t3_write_reg(adap, A_TP_PIO_DATA, 0xc0ede401);
+ t3_write_reg(adap, A_TP_PIO_DATA,
+ adap->params.rev == T3_REV_C ?
+ 0xc4ffff01 : 0xc0ede401);
t3_write_reg(adap, A_TP_PIO_ADDR, A_TP_TX_DROP_MODE);
- t3_set_reg_field(adap, A_TP_PIO_DATA, 1 << idx, 1 << idx);
+ t3_set_reg_field(adap, A_TP_PIO_DATA, 1 << idx,
+ adap->params.rev == T3_REV_C ? 0 : 1 << idx);
t3_write_reg(adap, A_XGM_TX_CTRL + oft, F_TXEN);
@@ -510,15 +529,12 @@ int t3b2_mac_watchdog_task(struct cmac *mac)
struct adapter *adap = mac->adapter;
struct mac_stats *s = &mac->stats;
unsigned int tx_tcnt, tx_xcnt;
- unsigned int tx_mcnt = s->tx_frames;
- unsigned int rx_mcnt = s->rx_frames;
- unsigned int rx_xcnt;
+ u64 tx_mcnt = s->tx_frames;
int status;
status = 0;
tx_xcnt = 1; /* By default tx_xcnt is making progress */
tx_tcnt = mac->tx_tcnt; /* If tx_mcnt is progressing ignore tx_tcnt */
- rx_xcnt = 1; /* By default rx_xcnt is making progress */
if (tx_mcnt == mac->tx_mcnt && mac->rx_pause == s->rx_pause) {
tx_xcnt = (G_TXSPI4SOPCNT(t3_read_reg(adap,
A_XGM_TX_SPI4_SOP_EOP_CNT +
@@ -529,11 +545,11 @@ int t3b2_mac_watchdog_task(struct cmac *mac)
tx_tcnt = (G_TXDROPCNTCH0RCVD(t3_read_reg(adap,
A_TP_PIO_DATA)));
} else {
- goto rxcheck;
+ goto out;
}
} else {
mac->toggle_cnt = 0;
- goto rxcheck;
+ goto out;
}
if ((tx_tcnt != mac->tx_tcnt) && (mac->tx_xcnt == 0)) {
@@ -546,23 +562,6 @@ int t3b2_mac_watchdog_task(struct cmac *mac)
}
} else {
mac->toggle_cnt = 0;
- goto rxcheck;
- }
-
-rxcheck:
- if (rx_mcnt != mac->rx_mcnt) {
- rx_xcnt = (G_TXSPI4SOPCNT(t3_read_reg(adap,
- A_XGM_RX_SPI4_SOP_EOP_CNT +
- mac->offset))) +
- (s->rx_fifo_ovfl -
- mac->rx_ocnt);
- mac->rx_ocnt = s->rx_fifo_ovfl;
- } else
- goto out;
-
- if (mac->rx_mcnt != s->rx_frames && rx_xcnt == 0 &&
- mac->rx_xcnt == 0) {
- status = 2;
goto out;
}
@@ -570,8 +569,6 @@ out:
mac->tx_tcnt = tx_tcnt;
mac->tx_xcnt = tx_xcnt;
mac->tx_mcnt = s->tx_frames;
- mac->rx_xcnt = rx_xcnt;
- mac->rx_mcnt = s->rx_frames;
mac->rx_pause = s->rx_pause;
if (status == 1) {
t3_write_reg(adap, A_XGM_TX_CTRL + mac->offset, 0);
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-18 06:21:29 +0000