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[03/19] gve: Add netif_set_xps_queue call

Message ID 20221011055704.642271-4-khalid.elmously@canonical.com
State New
Headers show
Series Update gve/gvnic code | expand

Commit Message

Khalid Elmously Oct. 11, 2022, 5:56 a.m. UTC 
From: Catherine Sullivan <csully@google.com>

BugLink: https://bugs.launchpad.net/bugs/1953575

Configure XPS when adding tx queues to the notification blocks.

Fixes: dbdaa67540512 ("gve: Move some static functions to a common file")
Signed-off-by: Catherine Sullivan <csully@google.com>
Signed-off-by: David Awogbemila <awogbemila@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 4edf8249bcd1c554b1a34166ca4ea5630031ecf5)
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>
---
 drivers/net/ethernet/google/gve/gve_utils.c | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/drivers/net/ethernet/google/gve/gve_utils.c b/drivers/net/ethernet/google/gve/gve_utils.c
index 93f3dcbeeea9..45ff7a9ab5f9 100644
--- a/drivers/net/ethernet/google/gve/gve_utils.c
+++ b/drivers/net/ethernet/google/gve/gve_utils.c
@@ -18,12 +18,16 @@  void gve_tx_remove_from_block(struct gve_priv *priv, int queue_idx)
 
 void gve_tx_add_to_block(struct gve_priv *priv, int queue_idx)
 {
+	unsigned int active_cpus = min_t(int, priv->num_ntfy_blks / 2,
+					 num_online_cpus());
 	int ntfy_idx = gve_tx_idx_to_ntfy(priv, queue_idx);
 	struct gve_notify_block *block = &priv->ntfy_blocks[ntfy_idx];
 	struct gve_tx_ring *tx = &priv->tx[queue_idx];
 
 	block->tx = tx;
 	tx->ntfy_id = ntfy_idx;
+	netif_set_xps_queue(priv->dev, get_cpu_mask(ntfy_idx % active_cpus),
+			    queue_idx);
 }
 
 void gve_rx_remove_from_block(struct gve_priv *priv, int queue_idx)