d/numam-dpdk
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

net/vhost: add an option to enable dequeue zero copy

Browse Source 
Add an option, dequeue-zero-copy, to enable this feature in vhost-pmd.

Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Tested-by: Qian Xu <qian.q.xu@intel.com>
This commit is contained in:
Yuanhan Liu 2016-10-09 15:28:00 +08:00
parent 00b8b70666
commit 4ce97c6f6b
1 changed files with 13 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/net/vhost/rte_eth_vhost.c
View File

@ -51,6 +51,7 @@
#define ETH_VHOST_IFACE_ARG "iface"
#define ETH_VHOST_QUEUES_ARG "queues"
#define ETH_VHOST_CLIENT_ARG "client"
#define ETH_VHOST_DEQUEUE_ZERO_COPY "dequeue-zero-copy"
static const char *drivername = "VHOST PMD";
@ -58,6 +59,7 @@ static const char *valid_arguments[] = {
ETH_VHOST_IFACE_ARG,
ETH_VHOST_QUEUES_ARG,
ETH_VHOST_CLIENT_ARG,
ETH_VHOST_DEQUEUE_ZERO_COPY,
NULL
};
@ -1132,6 +1134,7 @@ rte_pmd_vhost_probe(const char *name, const char *params)
uint16_t queues;
uint64_t flags = 0;
int client_mode = 0;
int dequeue_zero_copy = 0;
RTE_LOG(INFO, PMD, "Initializing pmd_vhost for %s\n", name);
@ -1168,6 +1171,16 @@ rte_pmd_vhost_probe(const char *name, const char *params)
flags |= RTE_VHOST_USER_CLIENT;
}
if (rte_kvargs_count(kvlist, ETH_VHOST_DEQUEUE_ZERO_COPY) == 1) {
ret = rte_kvargs_process(kvlist, ETH_VHOST_DEQUEUE_ZERO_COPY,
&open_int, &dequeue_zero_copy);
if (ret < 0)
goto out_free;
if (dequeue_zero_copy)
flags |= RTE_VHOST_USER_DEQUEUE_ZERO_COPY;
}
eth_dev_vhost_create(name, iface_name, queues, rte_socket_id(), flags);
out_free: