diff options
| -rw-r--r-- | drivers/net/sfc/efx.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c index 7b2a8186623..45c72eebb3a 100644 --- a/drivers/net/sfc/efx.c +++ b/drivers/net/sfc/efx.c @@ -19,6 +19,7 @@ #include <linux/in.h> #include <linux/crc32.h> #include <linux/ethtool.h> +#include <linux/topology.h> #include "net_driver.h" #include "gmii.h" #include "ethtool.h" @@ -832,7 +833,23 @@ static void efx_probe_interrupts(struct efx_nic *efx) if (efx->interrupt_mode == EFX_INT_MODE_MSIX) { BUG_ON(!pci_find_capability(efx->pci_dev, PCI_CAP_ID_MSIX)); - efx->rss_queues = rss_cpus ? rss_cpus : num_online_cpus(); + if (rss_cpus == 0) { + cpumask_t core_mask; + int cpu; + + cpus_clear(core_mask); + efx->rss_queues = 0; + for_each_online_cpu(cpu) { + if (!cpu_isset(cpu, core_mask)) { + ++efx->rss_queues; + cpus_or(core_mask, core_mask, + topology_core_siblings(cpu)); + } + } + } else { + efx->rss_queues = rss_cpus; + } + efx->rss_queues = min(efx->rss_queues, max_channel + 1); efx->rss_queues = min(efx->rss_queues, EFX_MAX_CHANNELS); |