ixgbe: Make descriptor ring allocations NUMA-aware
This patch allocates the ring structures themselves on each
NUMA node along with the buffer_info structures. This way we
don't allocate the entire ring memory on a single node in one
big block, thus reducing NUMA node memory crosstalk.
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ixgbe/ixgbe_ethtool.c b/drivers/net/ixgbe/ixgbe_ethtool.c
index 1525c86..07a9410 100644
--- a/drivers/net/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ixgbe/ixgbe_ethtool.c
@@ -834,8 +834,8 @@
struct ethtool_ringparam *ring)
{
struct ixgbe_adapter *adapter = netdev_priv(netdev);
- struct ixgbe_ring *tx_ring = adapter->tx_ring;
- struct ixgbe_ring *rx_ring = adapter->rx_ring;
+ struct ixgbe_ring *tx_ring = adapter->tx_ring[0];
+ struct ixgbe_ring *rx_ring = adapter->rx_ring[0];
ring->rx_max_pending = IXGBE_MAX_RXD;
ring->tx_max_pending = IXGBE_MAX_TXD;
@@ -867,8 +867,8 @@
new_tx_count = min(new_tx_count, (u32)IXGBE_MAX_TXD);
new_tx_count = ALIGN(new_tx_count, IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE);
- if ((new_tx_count == adapter->tx_ring->count) &&
- (new_rx_count == adapter->rx_ring->count)) {
+ if ((new_tx_count == adapter->tx_ring[0]->count) &&
+ (new_rx_count == adapter->rx_ring[0]->count)) {
/* nothing to do */
return 0;
}
@@ -878,25 +878,24 @@
if (!netif_running(adapter->netdev)) {
for (i = 0; i < adapter->num_tx_queues; i++)
- adapter->tx_ring[i].count = new_tx_count;
+ adapter->tx_ring[i]->count = new_tx_count;
for (i = 0; i < adapter->num_rx_queues; i++)
- adapter->rx_ring[i].count = new_rx_count;
+ adapter->rx_ring[i]->count = new_rx_count;
adapter->tx_ring_count = new_tx_count;
adapter->rx_ring_count = new_rx_count;
- goto err_setup;
+ goto clear_reset;
}
- temp_tx_ring = kcalloc(adapter->num_tx_queues,
- sizeof(struct ixgbe_ring), GFP_KERNEL);
+ temp_tx_ring = vmalloc(adapter->num_tx_queues * sizeof(struct ixgbe_ring));
if (!temp_tx_ring) {
err = -ENOMEM;
- goto err_setup;
+ goto clear_reset;
}
if (new_tx_count != adapter->tx_ring_count) {
- memcpy(temp_tx_ring, adapter->tx_ring,
- adapter->num_tx_queues * sizeof(struct ixgbe_ring));
for (i = 0; i < adapter->num_tx_queues; i++) {
+ memcpy(&temp_tx_ring[i], adapter->tx_ring[i],
+ sizeof(struct ixgbe_ring));
temp_tx_ring[i].count = new_tx_count;
err = ixgbe_setup_tx_resources(adapter,
&temp_tx_ring[i]);
@@ -904,28 +903,24 @@
while (i) {
i--;
ixgbe_free_tx_resources(adapter,
- &temp_tx_ring[i]);
+ &temp_tx_ring[i]);
}
- goto err_setup;
+ goto clear_reset;
}
}
need_update = true;
}
- temp_rx_ring = kcalloc(adapter->num_rx_queues,
- sizeof(struct ixgbe_ring), GFP_KERNEL);
- if ((!temp_rx_ring) && (need_update)) {
- for (i = 0; i < adapter->num_tx_queues; i++)
- ixgbe_free_tx_resources(adapter, &temp_tx_ring[i]);
- kfree(temp_tx_ring);
+ temp_rx_ring = vmalloc(adapter->num_rx_queues * sizeof(struct ixgbe_ring));
+ if (!temp_rx_ring) {
err = -ENOMEM;
goto err_setup;
}
if (new_rx_count != adapter->rx_ring_count) {
- memcpy(temp_rx_ring, adapter->rx_ring,
- adapter->num_rx_queues * sizeof(struct ixgbe_ring));
for (i = 0; i < adapter->num_rx_queues; i++) {
+ memcpy(&temp_rx_ring[i], adapter->rx_ring[i],
+ sizeof(struct ixgbe_ring));
temp_rx_ring[i].count = new_rx_count;
err = ixgbe_setup_rx_resources(adapter,
&temp_rx_ring[i]);
@@ -947,22 +942,32 @@
/* tx */
if (new_tx_count != adapter->tx_ring_count) {
- kfree(adapter->tx_ring);
- adapter->tx_ring = temp_tx_ring;
- temp_tx_ring = NULL;
+ for (i = 0; i < adapter->num_tx_queues; i++) {
+ ixgbe_free_tx_resources(adapter,
+ adapter->tx_ring[i]);
+ memcpy(adapter->tx_ring[i], &temp_tx_ring[i],
+ sizeof(struct ixgbe_ring));
+ }
adapter->tx_ring_count = new_tx_count;
}
/* rx */
if (new_rx_count != adapter->rx_ring_count) {
- kfree(adapter->rx_ring);
- adapter->rx_ring = temp_rx_ring;
- temp_rx_ring = NULL;
+ for (i = 0; i < adapter->num_rx_queues; i++) {
+ ixgbe_free_rx_resources(adapter,
+ adapter->rx_ring[i]);
+ memcpy(adapter->rx_ring[i], &temp_rx_ring[i],
+ sizeof(struct ixgbe_ring));
+ }
adapter->rx_ring_count = new_rx_count;
}
ixgbe_up(adapter);
}
+
+ vfree(temp_rx_ring);
err_setup:
+ vfree(temp_tx_ring);
+clear_reset:
clear_bit(__IXGBE_RESETTING, &adapter->state);
return err;
}
@@ -1007,13 +1012,13 @@
sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
}
for (j = 0; j < adapter->num_tx_queues; j++) {
- queue_stat = (u64 *)&adapter->tx_ring[j].stats;
+ queue_stat = (u64 *)&adapter->tx_ring[j]->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 = (u64 *)&adapter->rx_ring[j].stats;
+ queue_stat = (u64 *)&adapter->rx_ring[j]->stats;
for (k = 0; k < stat_count; k++)
data[i + k] = queue_stat[k];
i += k;
@@ -1627,7 +1632,7 @@
reg_data |= IXGBE_RXDCTL_ENABLE;
IXGBE_WRITE_REG(&adapter->hw, IXGBE_RXDCTL(0), reg_data);
if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
- int j = adapter->rx_ring[0].reg_idx;
+ int j = adapter->rx_ring[0]->reg_idx;
u32 k;
for (k = 0; k < 10; k++) {
if (IXGBE_READ_REG(&adapter->hw,
@@ -2011,7 +2016,7 @@
{
struct ixgbe_adapter *adapter = netdev_priv(netdev);
- ec->tx_max_coalesced_frames_irq = adapter->tx_ring[0].work_limit;
+ ec->tx_max_coalesced_frames_irq = adapter->tx_ring[0]->work_limit;
/* only valid if in constant ITR mode */
switch (adapter->rx_itr_setting) {
@@ -2064,7 +2069,7 @@
return -EINVAL;
if (ec->tx_max_coalesced_frames_irq)
- adapter->tx_ring[0].work_limit = ec->tx_max_coalesced_frames_irq;
+ adapter->tx_ring[0]->work_limit = ec->tx_max_coalesced_frames_irq;
if (ec->rx_coalesce_usecs > 1) {
/* check the limits */