Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
net: introduce a trivial netdev_queue_config()
We may choose to extend or reimplement the logic which renders
the per-queue config. The drivers should not poke directly into
the queue state. Add a helper for drivers to use when they want
to query the config for a specific queue.
Link: https://patch.msgid.link/20260122005113.2476634-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+39
-3
+3
-3
drivers/net/ethernet/broadcom/bnxt/bnxt.c
+3
-3
drivers/net/ethernet/broadcom/bnxt/bnxt.c
···
4326
4326
4327
4327
for (i = 0; i < bp->cp_nr_rings; i++) {
4328
4328
struct bnxt_napi *bnapi = bp->bnapi[i];
4329
+
struct netdev_queue_config qcfg;
4329
4330
struct bnxt_ring_mem_info *rmem;
4330
4331
struct bnxt_cp_ring_info *cpr;
4331
4332
struct bnxt_rx_ring_info *rxr;
4332
4333
struct bnxt_tx_ring_info *txr;
4333
4334
struct bnxt_ring_struct *ring;
4334
-
struct netdev_rx_queue *rxq;
4335
4335
4336
4336
if (!bnapi)
4337
4337
continue;
···
4349
4349
if (!rxr)
4350
4350
goto skip_rx;
4351
4351
4352
-
rxq = __netif_get_rx_queue(bp->dev, i);
4353
-
rxr->rx_page_size = rxq->qcfg.rx_page_size;
4352
+
netdev_queue_config(bp->dev, i, &qcfg);
4353
+
rxr->rx_page_size = qcfg.rx_page_size;
4354
4354
4355
4355
ring = &rxr->rx_ring_struct;
4356
4356
rmem = &ring->ring_mem;
+3
include/net/netdev_queues.h
+3
include/net/netdev_queues.h
+1
net/core/Makefile
+1
net/core/Makefile
+32
net/core/netdev_config.c
+32
net/core/netdev_config.c
···
1
+
// SPDX-License-Identifier: GPL-2.0-only
2
+
3
+
#include <linux/netdevice.h>
4
+
#include <net/netdev_queues.h>
5
+
#include <net/netdev_rx_queue.h>
6
+
7
+
/**
8
+
* netdev_queue_config() - get configuration for a given queue
9
+
* @dev: net_device instance
10
+
* @rxq_idx: index of the queue of interest
11
+
* @qcfg: queue configuration struct (output)
12
+
*
13
+
* Render the configuration for a given queue. This helper should be used
14
+
* by drivers which support queue configuration to retrieve config for
15
+
* a particular queue.
16
+
*
17
+
* @qcfg is an output parameter and is always fully initialized by this
18
+
* function. Some values may not be set by the user, drivers may either
19
+
* deal with the "unset" values in @qcfg, or provide the callback
20
+
* to populate defaults in queue_management_ops.
21
+
*/
22
+
void netdev_queue_config(struct net_device *dev, int rxq_idx,
23
+
struct netdev_queue_config *qcfg)
24
+
{
25
+
struct netdev_queue_config *stored;
26
+
27
+
memset(qcfg, 0, sizeof(*qcfg));
28
+
29
+
stored = &__netif_get_rx_queue(dev, rxq_idx)->qcfg;
30
+
qcfg->rx_page_size = stored->rx_page_size;
31
+
}
32
+
EXPORT_SYMBOL(netdev_queue_config);