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netdev-dpdk: Use different constant for ring size

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DPDK rings must have a power-of-two size.

Signed-off-by: Daniele Di Proietto <ddiproietto@vmware.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
This commit is contained in:
Daniele Di Proietto
2014-07-30 08:51:34 -07:00
committed by Pravin B Shelar
parent d7ff93d753
commit 58f7c37b1f
1 changed files with 4 additions and 2 deletions
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6
lib/netdev-dpdk.c
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@@ -125,6 +125,8 @@ static const struct rte_eth_txconf tx_conf = {
enum { MAX_RX_QUEUE_LEN = 192 };
enum { MAX_TX_QUEUE_LEN = 384 };
enum { DPDK_RING_SIZE = 256 };
BUILD_ASSERT_DECL(IS_POW2(DPDK_RING_SIZE));
enum { DRAIN_TSC = 200000ULL };
static int rte_eal_init_ret = ENODEV;
@@ -1245,7 +1247,7 @@ dpdk_ring_create(const char dev_name[], unsigned int port_no,
return -err;
}
ivshmem->cring_tx = rte_ring_create(ring_name, MAX_RX_QUEUE_LEN, SOCKET0, 0);
ivshmem->cring_tx = rte_ring_create(ring_name, DPDK_RING_SIZE, SOCKET0, 0);
if (ivshmem->cring_tx == NULL) {
rte_free(ivshmem);
return ENOMEM;
@@ -1256,7 +1258,7 @@ dpdk_ring_create(const char dev_name[], unsigned int port_no,
return -err;
}
ivshmem->cring_rx = rte_ring_create(ring_name, MAX_RX_QUEUE_LEN, SOCKET0, 0);
ivshmem->cring_rx = rte_ring_create(ring_name, DPDK_RING_SIZE, SOCKET0, 0);
if (ivshmem->cring_rx == NULL) {
rte_free(ivshmem);
return ENOMEM;