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ixgbe: Allocate driver resources per NUMA node

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The default policy for the current driver is to do all its memory
allocation on whatever processor is running insmod/modprobe.  This
is less than optimal.

This driver's default mode of operation will be to use each node for each
subsequent transmit/receive queue.  The most efficient allocation will be
to then have the interrupts bound in such a way as to match up the
interrupt of the queue to the cpu where its memory was allocated.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
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>
This commit is contained in:
Jesse Brandeburg 2010-02-03 14:18:50 +00:00 committed by David S. Miller
parent dbb5aaebc4
commit 1a6c14a2c7
2 changed files with 36 additions and 3 deletions
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2
drivers/net/ixgbe/ixgbe.h
View File

@ -399,6 +399,8 @@ struct ixgbe_adapter {
u32 wol;
u16 eeprom_version;
int node;
/* SR-IOV */
DECLARE_BITMAP(active_vfs, IXGBE_MAX_VF_FUNCTIONS);
unsigned int num_vfs;

37
drivers/net/ixgbe/ixgbe_main.c
View File

@ -3946,7 +3946,11 @@ static int ixgbe_alloc_q_vectors(struct ixgbe_adapter *adapter)
}
for (q_idx = 0; q_idx < num_q_vectors; q_idx++) {
q_vector = kzalloc(sizeof(struct ixgbe_q_vector), GFP_KERNEL);
q_vector = kzalloc_node(sizeof(struct ixgbe_q_vector),
GFP_KERNEL, adapter->node);
if (!q_vector)
q_vector = kzalloc(sizeof(struct ixgbe_q_vector),
GFP_KERNEL);
if (!q_vector)
goto err_out;
q_vector->adapter = adapter;
@ -4246,6 +4250,9 @@ static int __devinit ixgbe_sw_init(struct ixgbe_adapter *adapter)
/* enable rx csum by default */
adapter->flags |= IXGBE_FLAG_RX_CSUM_ENABLED;
/* get assigned NUMA node */
adapter->node = dev_to_node(&pdev->dev);
set_bit(__IXGBE_DOWN, &adapter->state);
return 0;
@ -4265,7 +4272,9 @@ int ixgbe_setup_tx_resources(struct ixgbe_adapter *adapter,
int size;
size = sizeof(struct ixgbe_tx_buffer) * tx_ring->count;
tx_ring->tx_buffer_info = vmalloc(size);
tx_ring->tx_buffer_info = vmalloc_node(size, adapter->node);
if (!tx_ring->tx_buffer_info)
tx_ring->tx_buffer_info = vmalloc(size);
if (!tx_ring->tx_buffer_info)
goto err;
memset(tx_ring->tx_buffer_info, 0, size);
@ -4305,8 +4314,15 @@ int ixgbe_setup_tx_resources(struct ixgbe_adapter *adapter,
static int ixgbe_setup_all_tx_resources(struct ixgbe_adapter *adapter)
{
int i, err = 0;
int orig_node = adapter->node;
for (i = 0; i < adapter->num_tx_queues; i++) {
if (orig_node == -1) {
int cur_node = next_online_node(adapter->node);
if (cur_node == MAX_NUMNODES)
cur_node = first_online_node;
adapter->node = cur_node;
}
err = ixgbe_setup_tx_resources(adapter, &adapter->tx_ring[i]);
if (!err)
continue;
@ -4314,6 +4330,9 @@ static int ixgbe_setup_all_tx_resources(struct ixgbe_adapter *adapter)
break;
}
/* reset the node back to its starting value */
adapter->node = orig_node;
return err;
}
@ -4331,7 +4350,9 @@ int ixgbe_setup_rx_resources(struct ixgbe_adapter *adapter,
int size;
size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count;
rx_ring->rx_buffer_info = vmalloc(size);
rx_ring->rx_buffer_info = vmalloc_node(size, adapter->node);
if (!rx_ring->rx_buffer_info)
rx_ring->rx_buffer_info = vmalloc(size);
if (!rx_ring->rx_buffer_info) {
DPRINTK(PROBE, ERR,
"vmalloc allocation failed for the rx desc ring\n");
@ -4375,8 +4396,15 @@ int ixgbe_setup_rx_resources(struct ixgbe_adapter *adapter,
static int ixgbe_setup_all_rx_resources(struct ixgbe_adapter *adapter)
{
int i, err = 0;
int orig_node = adapter->node;
for (i = 0; i < adapter->num_rx_queues; i++) {
if (orig_node == -1) {
int cur_node = next_online_node(adapter->node);
if (cur_node == MAX_NUMNODES)
cur_node = first_online_node;
adapter->node = cur_node;
}
err = ixgbe_setup_rx_resources(adapter, &adapter->rx_ring[i]);
if (!err)
continue;
@ -4384,6 +4412,9 @@ static int ixgbe_setup_all_rx_resources(struct ixgbe_adapter *adapter)
break;
}
/* reset the node back to its starting value */
adapter->node = orig_node;
return err;
}