[PATCH net-next 04/10] gve: Make gve_turn(up|down) ignore stopped queues

[Shailend Chand <shailend@google.com>]

Currently the queues are either all live or all dead, toggling from one
state to the other via the ndo open and stop hooks. The future addition
of single-queue ndo hooks changes this, and thus gve_turnup and
gve_turndown should evolve to account for a state where some queues are
live and some aren't.

Tested-by: Mina Almasry <almasrymina@google.com>
Reviewed-by: Praveen Kaligineedi <pkaligineedi@google.com>
Reviewed-by: Harshitha Ramamurthy <hramamurthy@google.com>
Signed-off-by: Shailend Chand <shailend@google.com>
---
 drivers/net/ethernet/google/gve/gve_main.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/net/ethernet/google/gve/gve_main.c b/drivers/net/ethernet/google/gve/gve_main.c
index 61039e3dd2bb..469a914c71d6 100644
--- a/drivers/net/ethernet/google/gve/gve_main.c
+++ b/drivers/net/ethernet/google/gve/gve_main.c
@@ -1937,12 +1937,16 @@ static void gve_turndown(struct gve_priv *priv)
 		int ntfy_idx = gve_tx_idx_to_ntfy(priv, idx);
 		struct gve_notify_block *block = &priv->ntfy_blocks[ntfy_idx];
 
+		if (!gve_tx_was_added_to_block(priv, idx))
+			continue;
 		napi_disable(&block->napi);
 	}
 	for (idx = 0; idx < priv->rx_cfg.num_queues; idx++) {
 		int ntfy_idx = gve_rx_idx_to_ntfy(priv, idx);
 		struct gve_notify_block *block = &priv->ntfy_blocks[ntfy_idx];
 
+		if (!gve_rx_was_added_to_block(priv, idx))
+			continue;
 		napi_disable(&block->napi);
 	}
 
@@ -1965,6 +1969,9 @@ static void gve_turnup(struct gve_priv *priv)
 		int ntfy_idx = gve_tx_idx_to_ntfy(priv, idx);
 		struct gve_notify_block *block = &priv->ntfy_blocks[ntfy_idx];
 
+		if (!gve_tx_was_added_to_block(priv, idx))
+			continue;
+
 		napi_enable(&block->napi);
 		if (gve_is_gqi(priv)) {
 			iowrite32be(0, gve_irq_doorbell(priv, block));
@@ -1977,6 +1984,9 @@ static void gve_turnup(struct gve_priv *priv)
 		int ntfy_idx = gve_rx_idx_to_ntfy(priv, idx);
 		struct gve_notify_block *block = &priv->ntfy_blocks[ntfy_idx];
 
+		if (!gve_rx_was_added_to_block(priv, idx))
+			continue;
+
 		napi_enable(&block->napi);
 		if (gve_is_gqi(priv)) {
 			iowrite32be(0, gve_irq_doorbell(priv, block));
-- 
2.45.0.rc0.197.gbae5840b3b-goog