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path: root/drivers/net/s2io.c
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Diffstat (limited to 'drivers/net/s2io.c')
-rw-r--r--drivers/net/s2io.c95
1 files changed, 83 insertions, 12 deletions
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index e2144fc7df9a..e24c5e544734 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -158,6 +158,9 @@ static char ethtool_stats_keys[][ETH_GSTRING_LEN] = {
{"rmac_pause_cnt"},
{"rmac_accepted_ip"},
{"rmac_err_tcp"},
+ {"\n DRIVER STATISTICS"},
+ {"single_bit_ecc_errs"},
+ {"double_bit_ecc_errs"},
};
#define S2IO_STAT_LEN sizeof(ethtool_stats_keys)/ ETH_GSTRING_LEN
@@ -237,7 +240,6 @@ static unsigned int tx_fifo_len[MAX_TX_FIFOS] =
static unsigned int rx_ring_num = 1;
static unsigned int rx_ring_sz[MAX_RX_RINGS] =
{[0 ...(MAX_RX_RINGS - 1)] = 0 };
-static unsigned int Stats_refresh_time = 4;
static unsigned int rts_frm_len[MAX_RX_RINGS] =
{[0 ...(MAX_RX_RINGS - 1)] = 0 };
static unsigned int use_continuous_tx_intrs = 1;
@@ -1083,9 +1085,6 @@ static int init_nic(struct s2io_nic *nic)
/* Program statistics memory */
writeq(mac_control->stats_mem_phy, &bar0->stat_addr);
- val64 = SET_UPDT_PERIOD(Stats_refresh_time) |
- STAT_CFG_STAT_RO | STAT_CFG_STAT_EN;
- writeq(val64, &bar0->stat_cfg);
/*
* Initializing the sampling rate for the device to calculate the
@@ -2101,6 +2100,7 @@ static int s2io_poll(struct net_device *dev, int *budget)
u64 val64;
int i;
+ atomic_inc(&nic->isr_cnt);
mac_control = &nic->mac_control;
config = &nic->config;
@@ -2136,6 +2136,7 @@ static int s2io_poll(struct net_device *dev, int *budget)
}
/* Re enable the Rx interrupts. */
en_dis_able_nic_intrs(nic, RX_TRAFFIC_INTR, ENABLE_INTRS);
+ atomic_dec(&nic->isr_cnt);
return 0;
no_rx:
@@ -2149,6 +2150,7 @@ no_rx:
break;
}
}
+ atomic_dec(&nic->isr_cnt);
return 1;
}
#endif
@@ -2179,6 +2181,13 @@ static void rx_intr_handler(ring_info_t *ring_data)
#endif
register u64 val64;
+ spin_lock(&nic->rx_lock);
+ if (atomic_read(&nic->card_state) == CARD_DOWN) {
+ DBG_PRINT(ERR_DBG, "%s: %s going down for reset\n",
+ __FUNCTION__, dev->name);
+ spin_unlock(&nic->rx_lock);
+ }
+
/*
* rx_traffic_int reg is an R1 register, hence we read and write
* back the same value in the register to clear it
@@ -2210,6 +2219,7 @@ static void rx_intr_handler(ring_info_t *ring_data)
DBG_PRINT(ERR_DBG, "%s: The skb is ",
dev->name);
DBG_PRINT(ERR_DBG, "Null in Rx Intr\n");
+ spin_unlock(&nic->rx_lock);
return;
}
#ifndef CONFIG_2BUFF_MODE
@@ -2262,6 +2272,7 @@ static void rx_intr_handler(ring_info_t *ring_data)
break;
#endif
}
+ spin_unlock(&nic->rx_lock);
}
/**
@@ -2345,7 +2356,6 @@ static void tx_intr_handler(fifo_info_t *fifo_data)
(sizeof(TxD_t) * fifo_data->max_txds));
/* Updating the statistics block */
- nic->stats.tx_packets++;
nic->stats.tx_bytes += skb->len;
dev_kfree_skb_irq(skb);
@@ -2393,13 +2403,16 @@ static void alarm_intr_handler(struct s2io_nic *nic)
writeq(val64, &bar0->mc_err_reg);
if (val64 & (MC_ERR_REG_ECC_ALL_SNG | MC_ERR_REG_ECC_ALL_DBL)) {
if (val64 & MC_ERR_REG_ECC_ALL_DBL) {
+ nic->mac_control.stats_info->sw_stat.
+ double_ecc_errs++;
DBG_PRINT(ERR_DBG, "%s: Device indicates ",
dev->name);
DBG_PRINT(ERR_DBG, "double ECC error!!\n");
netif_stop_queue(dev);
schedule_work(&nic->rst_timer_task);
} else {
- /* Device can recover from Single ECC errors */
+ nic->mac_control.stats_info->sw_stat.
+ single_ecc_errs++;
}
}
@@ -2695,7 +2708,7 @@ int s2io_open(struct net_device *dev)
* Nic is initialized
*/
netif_carrier_off(dev);
- sp->last_link_state = LINK_DOWN;
+ sp->last_link_state = 0; /* Unkown link state */
/* Initialize H/W and enable interrupts */
if (s2io_card_up(sp)) {
@@ -2909,6 +2922,7 @@ static irqreturn_t s2io_isr(int irq, void *dev_id, struct pt_regs *regs)
mac_info_t *mac_control;
struct config_param *config;
+ atomic_inc(&sp->isr_cnt);
mac_control = &sp->mac_control;
config = &sp->config;
@@ -2924,6 +2938,7 @@ static irqreturn_t s2io_isr(int irq, void *dev_id, struct pt_regs *regs)
if (!reason) {
/* The interrupt was not raised by Xena. */
+ atomic_dec(&sp->isr_cnt);
return IRQ_NONE;
}
@@ -2972,6 +2987,7 @@ static irqreturn_t s2io_isr(int irq, void *dev_id, struct pt_regs *regs)
dev->name);
DBG_PRINT(ERR_DBG, " in ISR!!\n");
clear_bit(0, (&sp->tasklet_status));
+ atomic_dec(&sp->isr_cnt);
return IRQ_HANDLED;
}
clear_bit(0, (&sp->tasklet_status));
@@ -2981,10 +2997,37 @@ static irqreturn_t s2io_isr(int irq, void *dev_id, struct pt_regs *regs)
}
#endif
+ atomic_dec(&sp->isr_cnt);
return IRQ_HANDLED;
}
/**
+ * s2io_updt_stats -
+ */
+static void s2io_updt_stats(nic_t *sp)
+{
+ XENA_dev_config_t __iomem *bar0 = sp->bar0;
+ u64 val64;
+ int cnt = 0;
+
+ if (atomic_read(&sp->card_state) == CARD_UP) {
+ /* Apprx 30us on a 133 MHz bus */
+ val64 = SET_UPDT_CLICKS(10) |
+ STAT_CFG_ONE_SHOT_EN | STAT_CFG_STAT_EN;
+ writeq(val64, &bar0->stat_cfg);
+ do {
+ udelay(100);
+ val64 = readq(&bar0->stat_cfg);
+ if (!(val64 & BIT(0)))
+ break;
+ cnt++;
+ if (cnt == 5)
+ break; /* Updt failed */
+ } while(1);
+ }
+}
+
+/**
* s2io_get_stats - Updates the device statistics structure.
* @dev : pointer to the device structure.
* Description:
@@ -3004,6 +3047,11 @@ struct net_device_stats *s2io_get_stats(struct net_device *dev)
mac_control = &sp->mac_control;
config = &sp->config;
+ /* Configure Stats for immediate updt */
+ s2io_updt_stats(sp);
+
+ sp->stats.tx_packets =
+ le32_to_cpu(mac_control->stats_info->tmac_frms);
sp->stats.tx_errors =
le32_to_cpu(mac_control->stats_info->tmac_any_err_frms);
sp->stats.rx_errors =
@@ -4018,6 +4066,7 @@ static void s2io_get_ethtool_stats(struct net_device *dev,
nic_t *sp = dev->priv;
StatInfo_t *stat_info = sp->mac_control.stats_info;
+ s2io_updt_stats(sp);
tmp_stats[i++] = le32_to_cpu(stat_info->tmac_frms);
tmp_stats[i++] = le32_to_cpu(stat_info->tmac_data_octets);
tmp_stats[i++] = le64_to_cpu(stat_info->tmac_drop_frms);
@@ -4057,6 +4106,9 @@ static void s2io_get_ethtool_stats(struct net_device *dev,
tmp_stats[i++] = le32_to_cpu(stat_info->rmac_pause_cnt);
tmp_stats[i++] = le32_to_cpu(stat_info->rmac_accepted_ip);
tmp_stats[i++] = le32_to_cpu(stat_info->rmac_err_tcp);
+ tmp_stats[i++] = 0;
+ tmp_stats[i++] = stat_info->sw_stat.single_ecc_errs;
+ tmp_stats[i++] = stat_info->sw_stat.double_ecc_errs;
}
int s2io_ethtool_get_regs_len(struct net_device *dev)
@@ -4353,14 +4405,27 @@ static void s2io_card_down(nic_t * sp)
break;
}
} while (1);
- spin_lock_irqsave(&sp->tx_lock, flags);
s2io_reset(sp);
- /* Free all unused Tx and Rx buffers */
+ /* Waiting till all Interrupt handlers are complete */
+ cnt = 0;
+ do {
+ msleep(10);
+ if (!atomic_read(&sp->isr_cnt))
+ break;
+ cnt++;
+ } while(cnt < 5);
+
+ spin_lock_irqsave(&sp->tx_lock, flags);
+ /* Free all Tx buffers */
free_tx_buffers(sp);
+ spin_unlock_irqrestore(&sp->tx_lock, flags);
+
+ /* Free all Rx buffers */
+ spin_lock_irqsave(&sp->rx_lock, flags);
free_rx_buffers(sp);
+ spin_unlock_irqrestore(&sp->rx_lock, flags);
- spin_unlock_irqrestore(&sp->tx_lock, flags);
clear_bit(0, &(sp->link_state));
}
@@ -4647,7 +4712,6 @@ module_param(tx_fifo_num, int, 0);
module_param(rx_ring_num, int, 0);
module_param_array(tx_fifo_len, uint, NULL, 0);
module_param_array(rx_ring_sz, uint, NULL, 0);
-module_param(Stats_refresh_time, int, 0);
module_param_array(rts_frm_len, uint, NULL, 0);
module_param(use_continuous_tx_intrs, int, 1);
module_param(rmac_pause_time, int, 0);
@@ -4804,6 +4868,9 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
for (i = 0; i < config->rx_ring_num; i++)
atomic_set(&sp->rx_bufs_left[i], 0);
+ /* Initialize the number of ISRs currently running */
+ atomic_set(&sp->isr_cnt, 0);
+
/* initialize the shared memory used by the NIC and the host */
if (init_shared_mem(sp)) {
DBG_PRINT(ERR_DBG, "%s: Memory allocation failed\n",
@@ -4938,6 +5005,7 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
#ifndef CONFIG_S2IO_NAPI
spin_lock_init(&sp->put_lock);
#endif
+ spin_lock_init(&sp->rx_lock);
/*
* SXE-002: Configure link and activity LED to init state
@@ -4961,13 +5029,16 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
goto register_failed;
}
+ /* Initialize device name */
+ strcpy(sp->name, dev->name);
+ strcat(sp->name, ": Neterion Xframe I 10GbE adapter");
+
/*
* Make Link state as off at this point, when the Link change
* interrupt comes the state will be automatically changed to
* the right state.
*/
netif_carrier_off(dev);
- sp->last_link_state = LINK_DOWN;
return 0;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.