diff options
| author | VSR Burru <veerasenareddy.burru@cavium.com> | 2017-03-10 04:03:24 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-03-13 09:17:00 +0300 |
| commit | b3ca9af0fb65098dd2afecca6831c361a585f37f (patch) | |
| tree | e737e5e34e64ef0d9f428aeb14c7acf615cdf36f /drivers/net/ethernet/cavium/liquidio/octeon_device.c | |
| parent | de12e4fb8f5f35bfeada567dabf597ef6004127d (diff) | |
| download | linux-b3ca9af0fb65098dd2afecca6831c361a585f37f.tar.xz | |
liquidio: optimize DMA in NUMA systems
Optimize DMA in NUMA systems by allocating memory from NUMA node that NIC
is plugged in to; DMA will no longer cross NUMA nodes. If NIC IRQs are
pinned to a local CPU, that CPU's access to the DMA'd data is also
optimized.
Signed-off-by: VSR Burru <veerasenareddy.burru@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@cavium.com>
Signed-off-by: Satanand Burla <satananda.burla@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/cavium/liquidio/octeon_device.c')
| -rw-r--r-- | drivers/net/ethernet/cavium/liquidio/octeon_device.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_device.c b/drivers/net/ethernet/cavium/liquidio/octeon_device.c index 9675ffbf25e6..e21b477d0159 100644 --- a/drivers/net/ethernet/cavium/liquidio/octeon_device.c +++ b/drivers/net/ethernet/cavium/liquidio/octeon_device.c @@ -793,7 +793,7 @@ int octeon_setup_instr_queues(struct octeon_device *oct) u32 num_descs = 0; u32 iq_no = 0; union oct_txpciq txpciq; - int numa_node = cpu_to_node(iq_no % num_online_cpus()); + int numa_node = dev_to_node(&oct->pci_dev->dev); if (OCTEON_CN6XXX(oct)) num_descs = @@ -837,7 +837,7 @@ int octeon_setup_output_queues(struct octeon_device *oct) u32 num_descs = 0; u32 desc_size = 0; u32 oq_no = 0; - int numa_node = cpu_to_node(oq_no % num_online_cpus()); + int numa_node = dev_to_node(&oct->pci_dev->dev); if (OCTEON_CN6XXX(oct)) { num_descs = |