diff options
Diffstat (limited to 'drivers/infiniband/ulp/ipoib/ipoib_main.c')
-rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_main.c | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index 9cb9e43..5bf7e26 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -41,6 +41,7 @@ #include <linux/init.h> #include <linux/slab.h> #include <linux/vmalloc.h> +#include <linux/kernel.h> #include <linux/if_arp.h> /* For ARPHRD_xxx */ @@ -53,6 +54,14 @@ MODULE_AUTHOR("Roland Dreier"); MODULE_DESCRIPTION("IP-over-InfiniBand net driver"); MODULE_LICENSE("Dual BSD/GPL"); +int ipoib_sendq_size __read_mostly = IPOIB_TX_RING_SIZE; +int ipoib_recvq_size __read_mostly = IPOIB_RX_RING_SIZE; + +module_param_named(send_queue_size, ipoib_sendq_size, int, 0444); +MODULE_PARM_DESC(send_queue_size, "Number of descriptors in send queue"); +module_param_named(recv_queue_size, ipoib_recvq_size, int, 0444); +MODULE_PARM_DESC(recv_queue_size, "Number of descriptors in receive queue"); + #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG int ipoib_debug_level; @@ -795,20 +804,19 @@ int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port) struct ipoib_dev_priv *priv = netdev_priv(dev); /* Allocate RX/TX "rings" to hold queued skbs */ - - priv->rx_ring = kzalloc(IPOIB_RX_RING_SIZE * sizeof (struct ipoib_rx_buf), + priv->rx_ring = kzalloc(ipoib_recvq_size * sizeof *priv->rx_ring, GFP_KERNEL); if (!priv->rx_ring) { printk(KERN_WARNING "%s: failed to allocate RX ring (%d entries)\n", - ca->name, IPOIB_RX_RING_SIZE); + ca->name, ipoib_recvq_size); goto out; } - priv->tx_ring = kzalloc(IPOIB_TX_RING_SIZE * sizeof (struct ipoib_tx_buf), + priv->tx_ring = kzalloc(ipoib_sendq_size * sizeof *priv->tx_ring, GFP_KERNEL); if (!priv->tx_ring) { printk(KERN_WARNING "%s: failed to allocate TX ring (%d entries)\n", - ca->name, IPOIB_TX_RING_SIZE); + ca->name, ipoib_sendq_size); goto out_rx_ring_cleanup; } @@ -876,7 +884,7 @@ static void ipoib_setup(struct net_device *dev) dev->hard_header_len = IPOIB_ENCAP_LEN + INFINIBAND_ALEN; dev->addr_len = INFINIBAND_ALEN; dev->type = ARPHRD_INFINIBAND; - dev->tx_queue_len = IPOIB_TX_RING_SIZE * 2; + dev->tx_queue_len = ipoib_sendq_size * 2; dev->features = NETIF_F_VLAN_CHALLENGED | NETIF_F_LLTX; /* MTU will be reset when mcast join happens */ @@ -1128,6 +1136,14 @@ static int __init ipoib_init_module(void) { int ret; + ipoib_recvq_size = roundup_pow_of_two(ipoib_recvq_size); + ipoib_recvq_size = min(ipoib_recvq_size, IPOIB_MAX_QUEUE_SIZE); + ipoib_recvq_size = max(ipoib_recvq_size, IPOIB_MIN_QUEUE_SIZE); + + ipoib_sendq_size = roundup_pow_of_two(ipoib_sendq_size); + ipoib_sendq_size = min(ipoib_sendq_size, IPOIB_MAX_QUEUE_SIZE); + ipoib_sendq_size = max(ipoib_sendq_size, IPOIB_MIN_QUEUE_SIZE); + ret = ipoib_register_debugfs(); if (ret) return ret; |