[v2,2/2] Define macro for iov_max default value
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Commit Message
Cc: stable@dpdk.org
Signed-off-by: Oeg Polyakov <opolyakov@northforgeinc.com>
---
drivers/net/tap/rte_eth_tap.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
@@ -68,6 +68,8 @@
/* IPC key for queue fds sync */
#define TAP_MP_KEY "tap_mp_sync_queues"
+#define TAP_IOV_DEFAULT_MAX 1024
+
static int tap_devices_count;
static struct rte_vdev_driver pmd_tap_drv;
static struct rte_vdev_driver pmd_tun_drv;
@@ -1328,8 +1330,8 @@ tap_rx_queue_setup(struct rte_eth_dev *dev,
long iov_max = sysconf(_SC_IOV_MAX);
if (iov_max <= 0) {
TAP_LOG(WARNING,
- "_SC_IOV_MAX is not defined. Using 1024 as default\n");
- iov_max = 1024;
+ "_SC_IOV_MAX is not defined. Using %d as default\n", TAP_IOV_DEFAULT_MAX);
+ iov_max = TAP_IOV_DEFAULT_MAX;
}
uint16_t nb_desc = RTE_MIN(nb_rx_desc, iov_max - 1);
struct iovec (*iovecs)[nb_desc + 1];