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be2net: setup xps queue mapping

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This patch sets up xps queue mapping on load, so that TX traffic is
steered to the queue whose irqs are being processed by the current cpu.
This helps in avoiding TX lock contention.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sathya Perla 2015-03-26 03:05:09 -04:00 committed by David S. Miller
parent d658d98aa5
commit 73f394e629
1 changed files with 7 additions and 3 deletions
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10
drivers/net/ethernet/emulex/benet/be_main.c
View file

@ -2454,8 +2454,9 @@ static void be_tx_queues_destroy(struct be_adapter *adapter)
static int be_tx_qs_create(struct be_adapter *adapter)
{
struct be_queue_info *cq, *eq;
struct be_queue_info *cq;
struct be_tx_obj *txo;
struct be_eq_obj *eqo;
int status, i;
adapter->num_tx_qs = min(adapter->num_evt_qs, be_max_txqs(adapter));
@ -2473,8 +2474,8 @@ static int be_tx_qs_create(struct be_adapter *adapter)
/* If num_evt_qs is less than num_tx_qs, then more than
* one txq share an eq
*/
eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
status = be_cmd_cq_create(adapter, cq, eq, false, 3);
eqo = &adapter->eq_obj[i % adapter->num_evt_qs];
status = be_cmd_cq_create(adapter, cq, &eqo->q, false, 3);
if (status)
return status;
@ -2486,6 +2487,9 @@ static int be_tx_qs_create(struct be_adapter *adapter)
status = be_cmd_txq_create(adapter, txo);
if (status)
return status;
netif_set_xps_queue(adapter->netdev, eqo->affinity_mask,
eqo->idx);
}
dev_info(&adapter->pdev->dev, "created %d TX queue(s)\n",