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author | David S. Miller <davem@davemloft.net> | 2014-07-16 14:09:34 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2014-07-16 14:09:34 -0700 |
commit | 1a98c69af1ecd97bfd1f4e4539924a9192434e36 (patch) | |
tree | a243defcf921ea174f8e43fce11d06830a6a9c36 /drivers/net/ethernet/mellanox/mlx4/en_rx.c | |
parent | 7a575f6b907ea5d207d2b5010293c189616eae34 (diff) | |
parent | b6603fe574af289dbe9eb9fb4c540bca04f5a053 (diff) | |
download | op-kernel-dev-1a98c69af1ecd97bfd1f4e4539924a9192434e36.zip op-kernel-dev-1a98c69af1ecd97bfd1f4e4539924a9192434e36.tar.gz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/en_rx.c')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/en_rx.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c index b8ec920..7765a08 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c @@ -40,6 +40,7 @@ #include <linux/if_ether.h> #include <linux/if_vlan.h> #include <linux/vmalloc.h> +#include <linux/irq.h> #include "mlx4_en.h" @@ -782,6 +783,7 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud PKT_HASH_TYPE_L3); skb_record_rx_queue(gro_skb, cq->ring); + skb_mark_napi_id(gro_skb, &cq->napi); if (ring->hwtstamp_rx_filter == HWTSTAMP_FILTER_ALL) { timestamp = mlx4_en_get_cqe_ts(cqe); @@ -896,16 +898,25 @@ int mlx4_en_poll_rx_cq(struct napi_struct *napi, int budget) /* If we used up all the quota - we're probably not done yet... */ if (done == budget) { + int cpu_curr; + const struct cpumask *aff; + INC_PERF_COUNTER(priv->pstats.napi_quota); - if (unlikely(cq->mcq.irq_affinity_change)) { - cq->mcq.irq_affinity_change = false; + + cpu_curr = smp_processor_id(); + aff = irq_desc_get_irq_data(cq->irq_desc)->affinity; + + if (unlikely(!cpumask_test_cpu(cpu_curr, aff))) { + /* Current cpu is not according to smp_irq_affinity - + * probably affinity changed. need to stop this NAPI + * poll, and restart it on the right CPU + */ napi_complete(napi); mlx4_en_arm_cq(priv, cq); return 0; } } else { /* Done for now */ - cq->mcq.irq_affinity_change = false; napi_complete(napi); mlx4_en_arm_cq(priv, cq); } |