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authorAmir Vadai <amirv@mellanox.com>2014-07-22 15:44:12 +0300
committerDavid S. Miller <davem@davemloft.net>2014-07-22 19:53:14 -0700
commitea1c1af1396cac9f8a1160acdac17f80e4b4f2c4 (patch)
treef68f7322365a1af4acc7354672466edd76e627e2 /drivers/net/ethernet/mellanox/mlx4/en_rx.c
parent2599d8580f93f0794d2fa850501b1068ce1d0aa8 (diff)
downloadop-kernel-dev-ea1c1af1396cac9f8a1160acdac17f80e4b4f2c4.zip
op-kernel-dev-ea1c1af1396cac9f8a1160acdac17f80e4b4f2c4.tar.gz
net/mlx4_en: Reduce memory consumption on kdump kernel
When memory is limited, reduce number of rx and tx rings. Signed-off-by: Amir Vadai <amirv@mellanox.com> 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.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
index 7765a08..9c909d2 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
@@ -335,8 +335,9 @@ void mlx4_en_set_num_rx_rings(struct mlx4_en_dev *mdev)
dev->caps.comp_pool/
dev->caps.num_ports) - 1;
- num_rx_rings = min_t(int, num_of_eqs,
- netif_get_num_default_rss_queues());
+ num_rx_rings = mlx4_low_memory_profile() ? MIN_RX_RINGS :
+ min_t(int, num_of_eqs,
+ netif_get_num_default_rss_queues());
mdev->profile.prof[i].rx_ring_num =
rounddown_pow_of_two(num_rx_rings);
}
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