[PATCH net-next 5/5] be2net: Fix non utilization of RX queues
From: Padmanabh Ratnakar <hidden>
Date: 2011-11-25 15:49:35
Subsystem:
emulex 10gbps nic be2, be3-r, lancer, skyhawk-r driver (be2net), networking drivers, the rest · Maintainers:
Ajit Khaparde, Sriharsha Basavapatna, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
When non power of two MSIX vectors are given to driver, some RX queues are not utilized. Program RSS table in such a way that all queues are utilized. Signed-off-by: Padmanabh Ratnakar <redacted> --- drivers/net/ethernet/emulex/benet/be_main.c | 16 ++++++++++------ 1 files changed, 10 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 66429ea..7236280 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c@@ -2312,8 +2312,8 @@ static int be_close(struct net_device *netdev) static int be_rx_queues_setup(struct be_adapter *adapter) { struct be_rx_obj *rxo; - int rc, i; - u8 rsstable[MAX_RSS_QS]; + int rc, i, j; + u8 rsstable[128]; for_all_rx_queues(adapter, rxo, i) { rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
@@ -2325,11 +2325,15 @@ static int be_rx_queues_setup(struct be_adapter *adapter) } if (be_multi_rxq(adapter)) { - for_all_rss_queues(adapter, rxo, i) - rsstable[i] = rxo->rss_id; + for (j = 0; j < 128; j += adapter->num_rx_qs - 1) { + for_all_rss_queues(adapter, rxo, i) { + if ((j + i) >= 128) + break; + rsstable[j + i] = rxo->rss_id; + } + } + rc = be_cmd_rss_config(adapter, rsstable, 128); - rc = be_cmd_rss_config(adapter, rsstable, - adapter->num_rx_qs - 1); if (rc) return rc; }
--
1.6.0.2