Thread (17 messages) flat view 17 messages, 4 authors, 2026-01-23

Re: [PATCH net-next 1/6] eth: bnxt: always set the queue mgmt ops

From: Subbaraya Sundeep <sbhatta@marvell.com>
Date: 2026-01-22 08:04:55

On 2026-01-22 at 06:21:08, Jakub Kicinski (kuba@kernel.org) wrote:
quoted hunk ↗ jump to hunk
Core provides a centralized callback for validating per-queue settings
but the callback is part of the queue management ops. Having the ops
conditionally set complicates the parts of the driver which could
otherwise lean on the core to feed it the correct settings.

Always set the queue ops, but provide no restart-related callbacks if
queue ops are not supported by the device. This should maintain current
behavior, the check in netdev_rx_queue_restart() looks both at op struct
and individual ops.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
--
v1:
 - reflow code
 - typo fix
rfc: https://lore.kernel.org/20250421222827.283737-15-kuba@kernel.org (local)
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 0e0c88c122f8..0b95100a7c36 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -16314,6 +16314,9 @@ static const struct netdev_queue_mgmt_ops bnxt_queue_mgmt_ops = {
 	.supported_params	= QCFG_RX_PAGE_SIZE,
 };
 
+static const struct netdev_queue_mgmt_ops bnxt_queue_mgmt_ops_unsupp = {
+};
+
 static void bnxt_remove_one(struct pci_dev *pdev)
 {
 	struct net_device *dev = pci_get_drvdata(pdev);
@@ -16966,9 +16969,10 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	if (BNXT_SUPPORTS_NTUPLE_VNIC(bp))
 		bp->rss_cap |= BNXT_RSS_CAP_MULTI_RSS_CTX;
+
+	dev->queue_mgmt_ops = &bnxt_queue_mgmt_ops_unsupp;
 	if (BNXT_SUPPORTS_QUEUE_API(bp))
 		dev->queue_mgmt_ops = &bnxt_queue_mgmt_ops;
-	dev->request_ops_lock = true;
Can we also mention that driver with queue_mgmt_ops set makes it as ops locked
driver in Documentation/networking/netdevices.rst ?

Thanks,
Sundeep
 	dev->netmem_tx = true;
 
 	rc = register_netdev(dev);
-- 
2.52.0
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help