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-rw-r--r--drivers/net/e1000/e1000.h26
-rw-r--r--drivers/net/e1000/e1000_ethtool.c65
-rw-r--r--drivers/net/e1000/e1000_main.c47
3 files changed, 120 insertions, 18 deletions
diff --git a/drivers/net/e1000/e1000.h b/drivers/net/e1000/e1000.h
index 5940f7a223bc..0a084e915dd6 100644
--- a/drivers/net/e1000/e1000.h
+++ b/drivers/net/e1000/e1000.h
@@ -72,10 +72,6 @@
#include <linux/mii.h>
#include <linux/ethtool.h>
#include <linux/if_vlan.h>
-#ifdef CONFIG_E1000_MQ
-#include <linux/cpu.h>
-#include <linux/smp.h>
-#endif
#define BAR_0 0
#define BAR_1 1
@@ -87,6 +83,10 @@
struct e1000_adapter;
#include "e1000_hw.h"
+#ifdef CONFIG_E1000_MQ
+#include <linux/cpu.h>
+#include <linux/smp.h>
+#endif
#ifdef DBG
#define E1000_DBG(args...) printk(KERN_DEBUG "e1000: " args)
@@ -169,6 +169,13 @@ struct e1000_buffer {
uint16_t next_to_watch;
};
+#ifdef CONFIG_E1000_MQ
+struct e1000_queue_stats {
+ uint64_t packets;
+ uint64_t bytes;
+};
+#endif
+
struct e1000_ps_page { struct page *ps_page[PS_PAGE_BUFFERS]; };
struct e1000_ps_page_dma { uint64_t ps_page_dma[PS_PAGE_BUFFERS]; };
@@ -194,6 +201,9 @@ struct e1000_tx_ring {
boolean_t last_tx_tso;
+#ifdef CONFIG_E1000_MQ
+ struct e1000_queue_stats tx_stats;
+#endif
};
struct e1000_rx_ring {
@@ -223,6 +233,9 @@ struct e1000_rx_ring {
uint16_t rdh;
uint16_t rdt;
+#ifdef CONFIG_E1000_MQ
+ struct e1000_queue_stats rx_stats;
+#endif
};
#define E1000_DESC_UNUSED(R) \
@@ -255,6 +268,9 @@ struct e1000_adapter {
uint16_t link_speed;
uint16_t link_duplex;
spinlock_t stats_lock;
+#ifdef CONFIG_E1000_NAPI
+ spinlock_t tx_queue_lock;
+#endif
atomic_t irq_sem;
struct work_struct tx_timeout_task;
struct work_struct watchdog_task;
@@ -302,7 +318,7 @@ struct e1000_adapter {
#ifdef CONFIG_E1000_MQ
struct net_device **cpu_netdev; /* per-cpu */
struct call_async_data_struct rx_sched_call_data;
- int cpu_for_queue[4];
+ cpumask_t cpumask;
#endif
int num_tx_queues;
int num_rx_queues;
diff --git a/drivers/net/e1000/e1000_ethtool.c b/drivers/net/e1000/e1000_ethtool.c
index fa9a4659369a..ffdf76b725bc 100644
--- a/drivers/net/e1000/e1000_ethtool.c
+++ b/drivers/net/e1000/e1000_ethtool.c
@@ -96,8 +96,18 @@ static const struct e1000_stats e1000_gstrings_stats[] = {
{ "rx_header_split", E1000_STAT(rx_hdr_split) },
{ "alloc_rx_buff_failed", E1000_STAT(alloc_rx_buff_failed) },
};
-#define E1000_STATS_LEN \
+
+#ifdef CONFIG_E1000_MQ
+#define E1000_QUEUE_STATS_LEN \
+ (((struct e1000_adapter *)netdev->priv)->num_tx_queues + \
+ ((struct e1000_adapter *)netdev->priv)->num_rx_queues) \
+ * (sizeof(struct e1000_queue_stats) / sizeof(uint64_t))
+#else
+#define E1000_QUEUE_STATS_LEN 0
+#endif
+#define E1000_GLOBAL_STATS_LEN \
sizeof(e1000_gstrings_stats) / sizeof(struct e1000_stats)
+#define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN + E1000_QUEUE_STATS_LEN)
static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {
"Register test (offline)", "Eeprom test (offline)",
"Interrupt test (offline)", "Loopback test (offline)",
@@ -1746,19 +1756,43 @@ e1000_get_ethtool_stats(struct net_device *netdev,
struct ethtool_stats *stats, uint64_t *data)
{
struct e1000_adapter *adapter = netdev_priv(netdev);
+#ifdef CONFIG_E1000_MQ
+ uint64_t *queue_stat;
+ int stat_count = sizeof(struct e1000_queue_stats) / sizeof(uint64_t);
+ int j, k;
+#endif
int i;
e1000_update_stats(adapter);
- for(i = 0; i < E1000_STATS_LEN; i++) {
- char *p = (char *)adapter+e1000_gstrings_stats[i].stat_offset;
- data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
+ for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
+ char *p = (char *)adapter+e1000_gstrings_stats[i].stat_offset;
+ data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
sizeof(uint64_t)) ? *(uint64_t *)p : *(uint32_t *)p;
}
+#ifdef CONFIG_E1000_MQ
+ for (j = 0; j < adapter->num_tx_queues; j++) {
+ queue_stat = (uint64_t *)&adapter->tx_ring[j].tx_stats;
+ for (k = 0; k < stat_count; k++)
+ data[i + k] = queue_stat[k];
+ i += k;
+ }
+ for (j = 0; j < adapter->num_rx_queues; j++) {
+ queue_stat = (uint64_t *)&adapter->rx_ring[j].rx_stats;
+ for (k = 0; k < stat_count; k++)
+ data[i + k] = queue_stat[k];
+ i += k;
+ }
+#endif
+/* BUG_ON(i != E1000_STATS_LEN); */
}
static void
e1000_get_strings(struct net_device *netdev, uint32_t stringset, uint8_t *data)
{
+#ifdef CONFIG_E1000_MQ
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+#endif
+ uint8_t *p = data;
int i;
switch(stringset) {
@@ -1767,11 +1801,26 @@ e1000_get_strings(struct net_device *netdev, uint32_t stringset, uint8_t *data)
E1000_TEST_LEN*ETH_GSTRING_LEN);
break;
case ETH_SS_STATS:
- for (i=0; i < E1000_STATS_LEN; i++) {
- memcpy(data + i * ETH_GSTRING_LEN,
- e1000_gstrings_stats[i].stat_string,
- ETH_GSTRING_LEN);
+ for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
+ memcpy(p, e1000_gstrings_stats[i].stat_string,
+ ETH_GSTRING_LEN);
+ p += ETH_GSTRING_LEN;
+ }
+#ifdef CONFIG_E1000_MQ
+ for (i = 0; i < adapter->num_tx_queues; i++) {
+ sprintf(p, "tx_queue_%u_packets", i);
+ p += ETH_GSTRING_LEN;
+ sprintf(p, "tx_queue_%u_bytes", i);
+ p += ETH_GSTRING_LEN;
}
+ for (i = 0; i < adapter->num_rx_queues; i++) {
+ sprintf(p, "rx_queue_%u_packets", i);
+ p += ETH_GSTRING_LEN;
+ sprintf(p, "rx_queue_%u_bytes", i);
+ p += ETH_GSTRING_LEN;
+ }
+#endif
+/* BUG_ON(p - data != E1000_STATS_LEN * ETH_GSTRING_LEN); */
break;
}
}
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 540c8561fc24..4016264a7919 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -433,6 +433,12 @@ e1000_up(struct e1000_adapter *adapter)
return err;
}
+#ifdef CONFIG_E1000_MQ
+ e1000_setup_queue_mapping(adapter);
+#endif
+
+ adapter->tx_queue_len = netdev->tx_queue_len;
+
mod_timer(&adapter->watchdog_timer, jiffies);
#ifdef CONFIG_E1000_NAPI
@@ -467,6 +473,7 @@ e1000_down(struct e1000_adapter *adapter)
#ifdef CONFIG_E1000_NAPI
netif_poll_disable(netdev);
#endif
+ netdev->tx_queue_len = adapter->tx_queue_len;
adapter->link_speed = 0;
adapter->link_duplex = 0;
netif_carrier_off(netdev);
@@ -989,6 +996,15 @@ e1000_sw_init(struct e1000_adapter *adapter)
}
adapter->num_rx_queues = min(adapter->num_rx_queues, num_online_cpus());
adapter->num_tx_queues = min(adapter->num_tx_queues, num_online_cpus());
+ DPRINTK(DRV, INFO, "Multiqueue Enabled: Rx Queue count = %u %s\n",
+ adapter->num_rx_queues,
+ ((adapter->num_rx_queues == 1)
+ ? ((num_online_cpus() > 1)
+ ? "(due to unsupported feature in current adapter)"
+ : "(due to unsupported system configuration)")
+ : ""));
+ DPRINTK(DRV, INFO, "Multiqueue Enabled: Tx Queue count = %u\n",
+ adapter->num_tx_queues);
#else
adapter->num_tx_queues = 1;
adapter->num_rx_queues = 1;
@@ -1007,10 +1023,7 @@ e1000_sw_init(struct e1000_adapter *adapter)
dev_hold(&adapter->polling_netdev[i]);
set_bit(__LINK_STATE_START, &adapter->polling_netdev[i].state);
}
-#endif
-
-#ifdef CONFIG_E1000_MQ
- e1000_setup_queue_mapping(adapter);
+ spin_lock_init(&adapter->tx_queue_lock);
#endif
atomic_set(&adapter->irq_sem, 1);
@@ -1058,6 +1071,14 @@ e1000_alloc_queues(struct e1000_adapter *adapter)
memset(adapter->polling_netdev, 0, size);
#endif
+#ifdef CONFIG_E1000_MQ
+ adapter->rx_sched_call_data.func = e1000_rx_schedule;
+ adapter->rx_sched_call_data.info = adapter->netdev;
+
+ adapter->cpu_netdev = alloc_percpu(struct net_device *);
+ adapter->cpu_tx_ring = alloc_percpu(struct e1000_tx_ring *);
+#endif
+
return E1000_SUCCESS;
}
@@ -1084,7 +1105,8 @@ e1000_setup_queue_mapping(struct e1000_adapter *adapter)
*/
if (i < adapter->num_rx_queues) {
*per_cpu_ptr(adapter->cpu_netdev, cpu) = &adapter->polling_netdev[i];
- adapter->cpu_for_queue[i] = cpu;
+ adapter->rx_ring[i].cpu = cpu;
+ cpu_set(cpu, adapter->cpumask);
} else
*per_cpu_ptr(adapter->cpu_netdev, cpu) = NULL;
@@ -3337,6 +3359,10 @@ e1000_clean_tx_irq(struct e1000_adapter *adapter,
if(unlikely(++i == tx_ring->count)) i = 0;
}
+#ifdef CONFIG_E1000_MQ
+ tx_ring->tx_stats.packets++;
+#endif
+
eop = tx_ring->buffer_info[i].next_to_watch;
eop_desc = E1000_TX_DESC(*tx_ring, eop);
}
@@ -3365,6 +3391,7 @@ e1000_clean_tx_irq(struct e1000_adapter *adapter,
eop = tx_ring->buffer_info[i].next_to_watch;
eop_desc = E1000_TX_DESC(*tx_ring, eop);
DPRINTK(DRV, ERR, "Detected Tx Unit Hang\n"
+ " Tx Queue <%lu>\n"
" TDH <%x>\n"
" TDT <%x>\n"
" next_to_use <%x>\n"
@@ -3375,6 +3402,8 @@ e1000_clean_tx_irq(struct e1000_adapter *adapter,
" next_to_watch <%x>\n"
" jiffies <%lx>\n"
" next_to_watch.status <%x>\n",
+ (unsigned long)((tx_ring - adapter->tx_ring) /
+ sizeof(struct e1000_tx_ring)),
readl(adapter->hw.hw_addr + tx_ring->tdh),
readl(adapter->hw.hw_addr + tx_ring->tdt),
tx_ring->next_to_use,
@@ -3541,6 +3570,10 @@ e1000_clean_rx_irq(struct e1000_adapter *adapter,
}
#endif /* CONFIG_E1000_NAPI */
netdev->last_rx = jiffies;
+#ifdef CONFIG_E1000_MQ
+ rx_ring->rx_stats.packets++;
+ rx_ring->rx_stats.bytes += length;
+#endif
next_desc:
rx_desc->status = 0;
@@ -3671,6 +3704,10 @@ e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
}
#endif /* CONFIG_E1000_NAPI */
netdev->last_rx = jiffies;
+#ifdef CONFIG_E1000_MQ
+ rx_ring->rx_stats.packets++;
+ rx_ring->rx_stats.bytes += length;
+#endif
next_desc:
rx_desc->wb.middle.status_error &= ~0xFF;
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