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Diffstat (limited to 'drivers/net/ixgbe')
-rw-r--r--drivers/net/ixgbe/ixgbe.h9
-rw-r--r--drivers/net/ixgbe/ixgbe_ethtool.c27
-rw-r--r--drivers/net/ixgbe/ixgbe_main.c191
3 files changed, 134 insertions, 93 deletions
diff --git a/drivers/net/ixgbe/ixgbe.h b/drivers/net/ixgbe/ixgbe.h
index d98113472a8..956914a5028 100644
--- a/drivers/net/ixgbe/ixgbe.h
+++ b/drivers/net/ixgbe/ixgbe.h
@@ -32,6 +32,7 @@
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/netdevice.h>
+#include <linux/inet_lro.h>
#include "ixgbe_type.h"
#include "ixgbe_common.h"
@@ -100,6 +101,9 @@
#define IXGBE_TX_FLAGS_VLAN_MASK 0xffff0000
#define IXGBE_TX_FLAGS_VLAN_SHIFT 16
+#define IXGBE_MAX_LRO_DESCRIPTORS 8
+#define IXGBE_MAX_LRO_AGGREGATE 32
+
/* wrapper around a pointer to a socket buffer,
* so a DMA handle can be stored along with the buffer */
struct ixgbe_tx_buffer {
@@ -150,6 +154,8 @@ struct ixgbe_ring {
/* cpu for tx queue */
int cpu;
#endif
+ struct net_lro_mgr lro_mgr;
+ bool lro_used;
struct ixgbe_queue_stats stats;
u8 v_idx; /* maps directly to the index for this ring in the hardware
* vector array, can also be used for finding the bit in EICR
@@ -287,6 +293,9 @@ struct ixgbe_adapter {
unsigned long state;
u64 tx_busy;
+ u64 lro_aggregated;
+ u64 lro_flushed;
+ u64 lro_no_desc;
};
enum ixbge_state_t {
diff --git a/drivers/net/ixgbe/ixgbe_ethtool.c b/drivers/net/ixgbe/ixgbe_ethtool.c
index 4e463778bcf..3efe5dda10a 100644
--- a/drivers/net/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ixgbe/ixgbe_ethtool.c
@@ -90,6 +90,8 @@ static struct ixgbe_stats ixgbe_gstrings_stats[] = {
{"rx_header_split", IXGBE_STAT(rx_hdr_split)},
{"alloc_rx_page_failed", IXGBE_STAT(alloc_rx_page_failed)},
{"alloc_rx_buff_failed", IXGBE_STAT(alloc_rx_buff_failed)},
+ {"lro_aggregated", IXGBE_STAT(lro_aggregated)},
+ {"lro_flushed", IXGBE_STAT(lro_flushed)},
};
#define IXGBE_QUEUE_STATS_LEN \
@@ -250,22 +252,10 @@ static int ixgbe_set_tso(struct net_device *netdev, u32 data)
netdev->features |= NETIF_F_TSO;
netdev->features |= NETIF_F_TSO6;
} else {
-#ifdef CONFIG_NETDEVICES_MULTIQUEUE
- struct ixgbe_adapter *adapter = netdev_priv(netdev);
- int i;
-#endif
- netif_stop_queue(netdev);
-#ifdef CONFIG_NETDEVICES_MULTIQUEUE
- for (i = 0; i < adapter->num_tx_queues; i++)
- netif_stop_subqueue(netdev, i);
-#endif
+ netif_tx_stop_all_queues(netdev);
netdev->features &= ~NETIF_F_TSO;
netdev->features &= ~NETIF_F_TSO6;
-#ifdef CONFIG_NETDEVICES_MULTIQUEUE
- for (i = 0; i < adapter->num_tx_queues; i++)
- netif_start_subqueue(netdev, i);
-#endif
- netif_start_queue(netdev);
+ netif_tx_start_all_queues(netdev);
}
return 0;
}
@@ -787,6 +777,7 @@ static void ixgbe_get_ethtool_stats(struct net_device *netdev,
int stat_count = sizeof(struct ixgbe_queue_stats) / sizeof(u64);
int j, k;
int i;
+ u64 aggregated = 0, flushed = 0, no_desc = 0;
ixgbe_update_stats(adapter);
for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
@@ -801,11 +792,17 @@ static void ixgbe_get_ethtool_stats(struct net_device *netdev,
i += k;
}
for (j = 0; j < adapter->num_rx_queues; j++) {
+ aggregated += adapter->rx_ring[j].lro_mgr.stats.aggregated;
+ flushed += adapter->rx_ring[j].lro_mgr.stats.flushed;
+ no_desc += adapter->rx_ring[j].lro_mgr.stats.no_desc;
queue_stat = (u64 *)&adapter->rx_ring[j].stats;
for (k = 0; k < stat_count; k++)
data[i + k] = queue_stat[k];
i += k;
}
+ adapter->lro_aggregated = aggregated;
+ adapter->lro_flushed = flushed;
+ adapter->lro_no_desc = no_desc;
}
static void ixgbe_get_strings(struct net_device *netdev, u32 stringset,
@@ -973,6 +970,8 @@ static struct ethtool_ops ixgbe_ethtool_ops = {
.get_ethtool_stats = ixgbe_get_ethtool_stats,
.get_coalesce = ixgbe_get_coalesce,
.set_coalesce = ixgbe_set_coalesce,
+ .get_flags = ethtool_op_get_flags,
+ .set_flags = ethtool_op_set_flags,
};
void ixgbe_set_ethtool_ops(struct net_device *netdev)
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 8f046090115..be7b723c924 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -266,28 +266,16 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_adapter *adapter,
* sees the new next_to_clean.
*/
smp_mb();
-#ifdef CONFIG_NETDEVICES_MULTIQUEUE
if (__netif_subqueue_stopped(netdev, tx_ring->queue_index) &&
!test_bit(__IXGBE_DOWN, &adapter->state)) {
netif_wake_subqueue(netdev, tx_ring->queue_index);
adapter->restart_queue++;
}
-#else
- if (netif_queue_stopped(netdev) &&
- !test_bit(__IXGBE_DOWN, &adapter->state)) {
- netif_wake_queue(netdev);
- adapter->restart_queue++;
- }
-#endif
}
if (adapter->detect_tx_hung)
if (ixgbe_check_tx_hang(adapter, tx_ring, eop, eop_desc))
-#ifdef CONFIG_NETDEVICES_MULTIQUEUE
netif_stop_subqueue(netdev, tx_ring->queue_index);
-#else
- netif_stop_queue(netdev);
-#endif
if (total_tx_packets >= tx_ring->work_limit)
IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS, tx_ring->eims_value);
@@ -389,24 +377,39 @@ static int __ixgbe_notify_dca(struct device *dev, void *data)
* ixgbe_receive_skb - Send a completed packet up the stack
* @adapter: board private structure
* @skb: packet to send up
- * @is_vlan: packet has a VLAN tag
- * @tag: VLAN tag from descriptor
+ * @status: hardware indication of status of receive
+ * @rx_ring: rx descriptor ring (for a specific queue) to setup
+ * @rx_desc: rx descriptor
**/
static void ixgbe_receive_skb(struct ixgbe_adapter *adapter,
- struct sk_buff *skb, bool is_vlan,
- u16 tag)
+ struct sk_buff *skb, u8 status,
+ struct ixgbe_ring *ring,
+ union ixgbe_adv_rx_desc *rx_desc)
{
- if (!(adapter->flags & IXGBE_FLAG_IN_NETPOLL)) {
- if (adapter->vlgrp && is_vlan)
- vlan_hwaccel_receive_skb(skb, adapter->vlgrp, tag);
- else
- netif_receive_skb(skb);
- } else {
+ bool is_vlan = (status & IXGBE_RXD_STAT_VP);
+ u16 tag = le16_to_cpu(rx_desc->wb.upper.vlan);
+ if (adapter->netdev->features & NETIF_F_LRO &&
+ skb->ip_summed == CHECKSUM_UNNECESSARY) {
if (adapter->vlgrp && is_vlan)
- vlan_hwaccel_rx(skb, adapter->vlgrp, tag);
+ lro_vlan_hwaccel_receive_skb(&ring->lro_mgr, skb,
+ adapter->vlgrp, tag,
+ rx_desc);
else
- netif_rx(skb);
+ lro_receive_skb(&ring->lro_mgr, skb, rx_desc);
+ ring->lro_used = true;
+ } else {
+ if (!(adapter->flags & IXGBE_FLAG_IN_NETPOLL)) {
+ if (adapter->vlgrp && is_vlan)
+ vlan_hwaccel_receive_skb(skb, adapter->vlgrp, tag);
+ else
+ netif_receive_skb(skb);
+ } else {
+ if (adapter->vlgrp && is_vlan)
+ vlan_hwaccel_rx(skb, adapter->vlgrp, tag);
+ else
+ netif_rx(skb);
+ }
}
}
@@ -546,8 +549,8 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_adapter *adapter,
struct sk_buff *skb;
unsigned int i;
u32 upper_len, len, staterr;
- u16 hdr_info, vlan_tag;
- bool is_vlan, cleaned = false;
+ u16 hdr_info;
+ bool cleaned = false;
int cleaned_count = 0;
unsigned int total_rx_bytes = 0, total_rx_packets = 0;
@@ -556,8 +559,6 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_adapter *adapter,
rx_desc = IXGBE_RX_DESC_ADV(*rx_ring, i);
staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
rx_buffer_info = &rx_ring->rx_buffer_info[i];
- is_vlan = (staterr & IXGBE_RXD_STAT_VP);
- vlan_tag = le16_to_cpu(rx_desc->wb.upper.vlan);
while (staterr & IXGBE_RXD_STAT_DD) {
if (*work_done >= work_to_do)
@@ -635,7 +636,7 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_adapter *adapter,
total_rx_packets++;
skb->protocol = eth_type_trans(skb, netdev);
- ixgbe_receive_skb(adapter, skb, is_vlan, vlan_tag);
+ ixgbe_receive_skb(adapter, skb, staterr, rx_ring, rx_desc);
netdev->last_rx = jiffies;
next_desc:
@@ -652,8 +653,11 @@ next_desc:
rx_buffer_info = next_buffer;
staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
- is_vlan = (staterr & IXGBE_RXD_STAT_VP);
- vlan_tag = le16_to_cpu(rx_desc->wb.upper.vlan);
+ }
+
+ if (rx_ring->lro_used) {
+ lro_flush_all(&rx_ring->lro_mgr);
+ rx_ring->lro_used = false;
}
rx_ring->next_to_clean = i;
@@ -1382,6 +1386,33 @@ static void ixgbe_configure_tx(struct ixgbe_adapter *adapter)
#define IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT 2
/**
+ * ixgbe_get_skb_hdr - helper function for LRO header processing
+ * @skb: pointer to sk_buff to be added to LRO packet
+ * @iphdr: pointer to tcp header structure
+ * @tcph: pointer to tcp header structure
+ * @hdr_flags: pointer to header flags
+ * @priv: private data
+ **/
+static int ixgbe_get_skb_hdr(struct sk_buff *skb, void **iphdr, void **tcph,
+ u64 *hdr_flags, void *priv)
+{
+ union ixgbe_adv_rx_desc *rx_desc = priv;
+
+ /* Verify that this is a valid IPv4 TCP packet */
+ if (!(rx_desc->wb.lower.lo_dword.pkt_info &
+ (IXGBE_RXDADV_PKTTYPE_IPV4 | IXGBE_RXDADV_PKTTYPE_TCP)))
+ return -1;
+
+ /* Set network headers */
+ skb_reset_network_header(skb);
+ skb_set_transport_header(skb, ip_hdrlen(skb));
+ *iphdr = ip_hdr(skb);
+ *tcph = tcp_hdr(skb);
+ *hdr_flags = LRO_IPV4 | LRO_TCP;
+ return 0;
+}
+
+/**
* ixgbe_configure_rx - Configure 8254x Receive Unit after Reset
* @adapter: board private structure
*
@@ -1470,6 +1501,17 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter)
adapter->rx_ring[i].tail = IXGBE_RDT(i);
}
+ /* Intitial LRO Settings */
+ adapter->rx_ring[i].lro_mgr.max_aggr = IXGBE_MAX_LRO_AGGREGATE;
+ adapter->rx_ring[i].lro_mgr.max_desc = IXGBE_MAX_LRO_DESCRIPTORS;
+ adapter->rx_ring[i].lro_mgr.get_skb_header = ixgbe_get_skb_hdr;
+ adapter->rx_ring[i].lro_mgr.features = LRO_F_EXTRACT_VLAN_ID;
+ if (!(adapter->flags & IXGBE_FLAG_IN_NETPOLL))
+ adapter->rx_ring[i].lro_mgr.features |= LRO_F_NAPI;
+ adapter->rx_ring[i].lro_mgr.dev = adapter->netdev;
+ adapter->rx_ring[i].lro_mgr.ip_summed = CHECKSUM_UNNECESSARY;
+ adapter->rx_ring[i].lro_mgr.ip_summed_aggr = CHECKSUM_UNNECESSARY;
+
if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) {
/* Fill out redirection table */
for (i = 0, j = 0; i < 128; i++, j++) {
@@ -1532,7 +1574,7 @@ static void ixgbe_vlan_rx_register(struct net_device *netdev,
if (grp) {
/* enable VLAN tag insert/strip */
ctrl = IXGBE_READ_REG(&adapter->hw, IXGBE_VLNCTRL);
- ctrl |= IXGBE_VLNCTRL_VME | IXGBE_VLNCTRL_VFE;
+ ctrl |= IXGBE_VLNCTRL_VME;
ctrl &= ~IXGBE_VLNCTRL_CFIEN;
IXGBE_WRITE_REG(&adapter->hw, IXGBE_VLNCTRL, ctrl);
}
@@ -1603,11 +1645,15 @@ static void ixgbe_set_multi(struct net_device *netdev)
if (netdev->flags & IFF_PROMISC) {
fctrl |= (IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE);
- } else if (netdev->flags & IFF_ALLMULTI) {
- fctrl |= IXGBE_FCTRL_MPE;
- fctrl &= ~IXGBE_FCTRL_UPE;
+ fctrl &= ~IXGBE_VLNCTRL_VFE;
} else {
- fctrl &= ~(IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE);
+ if (netdev->flags & IFF_ALLMULTI) {
+ fctrl |= IXGBE_FCTRL_MPE;
+ fctrl &= ~IXGBE_FCTRL_UPE;
+ } else {
+ fctrl &= ~(IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE);
+ }
+ fctrl |= IXGBE_VLNCTRL_VFE;
}
IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl);
@@ -1967,7 +2013,7 @@ void ixgbe_down(struct ixgbe_adapter *adapter)
del_timer_sync(&adapter->watchdog_timer);
netif_carrier_off(netdev);
- netif_stop_queue(netdev);
+ netif_tx_stop_all_queues(netdev);
if (!pci_channel_offline(adapter->pdev))
ixgbe_reset(adapter);
@@ -2138,11 +2184,7 @@ static void __devinit ixgbe_set_num_queues(struct ixgbe_adapter *adapter)
case (IXGBE_FLAG_RSS_ENABLED):
rss_m = 0xF;
nrq = rss_i;
-#ifdef CONFIG_NETDEVICES_MULTIQUEUE
ntq = rss_i;
-#else
- ntq = 1;
-#endif
break;
case 0:
default:
@@ -2316,10 +2358,8 @@ try_msi:
}
out:
-#ifdef CONFIG_NETDEVICES_MULTIQUEUE
/* Notify the stack of the (possibly) reduced Tx Queue count. */
- adapter->netdev->egress_subqueue_count = adapter->num_tx_queues;
-#endif
+ adapter->netdev->real_num_tx_queues = adapter->num_tx_queues;
return err;
}
@@ -2490,12 +2530,18 @@ int ixgbe_setup_rx_resources(struct ixgbe_adapter *adapter,
struct pci_dev *pdev = adapter->pdev;
int size;
+ size = sizeof(struct net_lro_desc) * IXGBE_MAX_LRO_DESCRIPTORS;
+ rxdr->lro_mgr.lro_arr = vmalloc(size);
+ if (!rxdr->lro_mgr.lro_arr)
+ return -ENOMEM;
+ memset(rxdr->lro_mgr.lro_arr, 0, size);
+
size = sizeof(struct ixgbe_rx_buffer) * rxdr->count;
rxdr->rx_buffer_info = vmalloc(size);
if (!rxdr->rx_buffer_info) {
DPRINTK(PROBE, ERR,
"vmalloc allocation failed for the rx desc ring\n");
- return -ENOMEM;
+ goto alloc_failed;
}
memset(rxdr->rx_buffer_info, 0, size);
@@ -2509,13 +2555,18 @@ int ixgbe_setup_rx_resources(struct ixgbe_adapter *adapter,
DPRINTK(PROBE, ERR,
"Memory allocation failed for the rx desc ring\n");
vfree(rxdr->rx_buffer_info);
- return -ENOMEM;
+ goto alloc_failed;
}
rxdr->next_to_clean = 0;
rxdr->next_to_use = 0;
return 0;
+
+alloc_failed:
+ vfree(rxdr->lro_mgr.lro_arr);
+ rxdr->lro_mgr.lro_arr = NULL;
+ return -ENOMEM;
}
/**
@@ -2566,6 +2617,9 @@ static void ixgbe_free_rx_resources(struct ixgbe_adapter *adapter,
{
struct pci_dev *pdev = adapter->pdev;
+ vfree(rx_ring->lro_mgr.lro_arr);
+ rx_ring->lro_mgr.lro_arr = NULL;
+
ixgbe_clean_rx_ring(adapter, rx_ring);
vfree(rx_ring->rx_buffer_info);
@@ -2711,6 +2765,8 @@ static int ixgbe_open(struct net_device *netdev)
if (err)
goto err_up;
+ netif_tx_start_all_queues(netdev);
+
return 0;
err_up:
@@ -2842,9 +2898,6 @@ static void ixgbe_watchdog(unsigned long data)
struct net_device *netdev = adapter->netdev;
bool link_up;
u32 link_speed = 0;
-#ifdef CONFIG_NETDEVICES_MULTIQUEUE
- int i;
-#endif
adapter->hw.mac.ops.check_link(&adapter->hw, &(link_speed), &link_up);
@@ -2865,11 +2918,7 @@ static void ixgbe_watchdog(unsigned long data)
(FLOW_TX ? "TX" : "None"))));
netif_carrier_on(netdev);
- netif_wake_queue(netdev);
-#ifdef CONFIG_NETDEVICES_MULTIQUEUE
- for (i = 0; i < adapter->num_tx_queues; i++)
- netif_wake_subqueue(netdev, i);
-#endif
+ netif_tx_wake_all_queues(netdev);
} else {
/* Force detection of hung controller */
adapter->detect_tx_hung = true;
@@ -2878,7 +2927,7 @@ static void ixgbe_watchdog(unsigned long data)
if (netif_carrier_ok(netdev)) {
DPRINTK(LINK, INFO, "NIC Link is Down\n");
netif_carrier_off(netdev);
- netif_stop_queue(netdev);
+ netif_tx_stop_all_queues(netdev);
}
}
@@ -3196,11 +3245,7 @@ static int __ixgbe_maybe_stop_tx(struct net_device *netdev,
{
struct ixgbe_adapter *adapter = netdev_priv(netdev);
-#ifdef CONFIG_NETDEVICES_MULTIQUEUE
netif_stop_subqueue(netdev, tx_ring->queue_index);
-#else
- netif_stop_queue(netdev);
-#endif
/* Herbert's original patch had:
* smp_mb__after_netif_stop_queue();
* but since that doesn't exist yet, just open code it. */
@@ -3212,11 +3257,7 @@ static int __ixgbe_maybe_stop_tx(struct net_device *netdev,
return -EBUSY;
/* A reprieve! - use start_queue because it doesn't call schedule */
-#ifdef CONFIG_NETDEVICES_MULTIQUEUE
netif_wake_subqueue(netdev, tx_ring->queue_index);
-#else
- netif_wake_queue(netdev);
-#endif
++adapter->restart_queue;
return 0;
}
@@ -3244,9 +3285,7 @@ static int ixgbe_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
unsigned int f;
unsigned int nr_frags = skb_shinfo(skb)->nr_frags;
len -= skb->data_len;
-#ifdef CONFIG_NETDEVICES_MULTIQUEUE
r_idx = (adapter->num_tx_queues - 1) & skb->queue_mapping;
-#endif
tx_ring = &adapter->tx_ring[r_idx];
@@ -3434,11 +3473,7 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
pci_set_master(pdev);
pci_save_state(pdev);
-#ifdef CONFIG_NETDEVICES_MULTIQUEUE
netdev = alloc_etherdev_mq(sizeof(struct ixgbe_adapter), MAX_TX_QUEUES);
-#else
- netdev = alloc_etherdev(sizeof(struct ixgbe_adapter));
-#endif
if (!netdev) {
err = -ENOMEM;
goto err_alloc_etherdev;
@@ -3518,16 +3553,18 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
NETIF_F_HW_VLAN_RX |
NETIF_F_HW_VLAN_FILTER;
+ netdev->features |= NETIF_F_LRO;
netdev->features |= NETIF_F_TSO;
-
netdev->features |= NETIF_F_TSO6;
+
+ netdev->vlan_features |= NETIF_F_TSO;
+ netdev->vlan_features |= NETIF_F_TSO6;
+ netdev->vlan_features |= NETIF_F_HW_CSUM;
+ netdev->vlan_features |= NETIF_F_SG;
+
if (pci_using_dac)
netdev->features |= NETIF_F_HIGHDMA;
-#ifdef CONFIG_NETDEVICES_MULTIQUEUE
- netdev->features |= NETIF_F_MULTI_QUEUE;
-#endif
-
/* make sure the EEPROM is good */
if (ixgbe_validate_eeprom_checksum(hw, NULL) < 0) {
dev_err(&pdev->dev, "The EEPROM Checksum Is Not Valid\n");
@@ -3593,11 +3630,7 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
ixgbe_start_hw(hw);
netif_carrier_off(netdev);
- netif_stop_queue(netdev);
-#ifdef CONFIG_NETDEVICES_MULTIQUEUE
- for (i = 0; i < adapter->num_tx_queues; i++)
- netif_stop_subqueue(netdev, i);
-#endif
+ netif_tx_stop_all_queues(netdev);
ixgbe_napi_add_all(adapter);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 02:54:30 +0000