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modules/mqnic/: Make number of allocated queue entries configurable via module parameters

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This may be complemented or replaced by making use of the appropriate ethtool
API in the future, of course.

Signed-off-by: Joachim Foerster <joachim.foerster@missinglinkelectronics.com>
This commit is contained in:
Joachim Foerster 2021-10-21 10:43:06 +02:00 committed by Alex Forencich
parent f5f40297e3
commit 508b4cf39b
4 changed files with 29 additions and 5 deletions
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4
modules/mqnic/mqnic.h
View File

@ -52,6 +52,10 @@
#include "mqnic_hw.h"
extern unsigned int mqnic_num_ev_queue_entries;
extern unsigned int mqnic_num_tx_queue_entries;
extern unsigned int mqnic_num_rx_queue_entries;
struct mqnic_dev;
struct mqnic_if;

3
modules/mqnic/mqnic_if.c
View File

@ -127,7 +127,8 @@ int mqnic_create_interface(struct mqnic_dev *mdev, struct mqnic_if **interface_p
if (ret)
goto fail;
ret = mqnic_alloc_eq_ring(interface->event_ring[k], 1024, MQNIC_EVENT_SIZE); // TODO configure/constant
ret = mqnic_alloc_eq_ring(interface->event_ring[k], mqnic_num_ev_queue_entries,
MQNIC_EVENT_SIZE);
if (ret)
goto fail;

14
modules/mqnic/mqnic_main.c
View File

@ -47,6 +47,20 @@ MODULE_AUTHOR("Alex Forencich");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_VERSION(DRIVER_VERSION);
unsigned int mqnic_num_ev_queue_entries = 1024;
unsigned int mqnic_num_tx_queue_entries = 1024;
unsigned int mqnic_num_rx_queue_entries = 1024;
module_param_named(num_ev_queue_entries, mqnic_num_ev_queue_entries,
uint, 0444);
MODULE_PARM_DESC(num_ev_queue_entries, "number of entries to allocate per event queue (default: 1024)");
module_param_named(num_tx_queue_entries, mqnic_num_tx_queue_entries,
uint, 0444);
MODULE_PARM_DESC(num_tx_queue_entries, "number of entries to allocate per transmit queue (default: 1024)");
module_param_named(num_rx_queue_entries, mqnic_num_rx_queue_entries,
uint, 0444);
MODULE_PARM_DESC(num_rx_queue_entries, "number of entries to allocate per receive queue (default: 1024)");
static const struct pci_device_id mqnic_pci_id_table[] = {
{PCI_DEVICE(0x1234, 0x1001)},
{PCI_DEVICE(0x5543, 0x1001)},

13
modules/mqnic/mqnic_netdev.c
View File

@ -435,25 +435,30 @@ int mqnic_create_netdev(struct mqnic_if *interface, struct net_device **ndev_ptr
// allocate ring buffers
for (k = 0; k < priv->tx_queue_count; k++) {
ret = mqnic_alloc_tx_ring(priv->tx_ring[k], 1024, MQNIC_DESC_SIZE * desc_block_size); // TODO configure/constant
ret = mqnic_alloc_tx_ring(priv->tx_ring[k], mqnic_num_tx_queue_entries,
MQNIC_DESC_SIZE * desc_block_size);
if (ret)
goto fail;
}
for (k = 0; k < priv->tx_cpl_queue_count; k++) {
ret = mqnic_alloc_cq_ring(priv->tx_cpl_ring[k], 1024, MQNIC_CPL_SIZE); // TODO configure/constant
ret = mqnic_alloc_cq_ring(priv->tx_cpl_ring[k], mqnic_num_tx_queue_entries,
MQNIC_CPL_SIZE);
if (ret)
goto fail;
}
for (k = 0; k < priv->rx_queue_count; k++) {
ret = mqnic_alloc_rx_ring(priv->rx_ring[k], 1024, MQNIC_DESC_SIZE); // TODO configure/constant
ret = mqnic_alloc_rx_ring(priv->rx_ring[k], mqnic_num_rx_queue_entries,
MQNIC_DESC_SIZE);
if (ret)
goto fail;
}
for (k = 0; k < priv->rx_cpl_queue_count; k++) {
ret = mqnic_alloc_cq_ring(priv->rx_cpl_ring[k], 1024, MQNIC_CPL_SIZE); // TODO configure/constant
ret = mqnic_alloc_cq_ring(priv->rx_cpl_ring[k], mqnic_num_rx_queue_entries,
MQNIC_CPL_SIZE);
if (ret)
goto fail;
}