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

node: choose vector path at runtime

Browse Source 
When choosing the vector path, max SIMD bitwidth is now checked to
ensure the vector path is suitable. To do this, the scalar function is
chosen by default in the struct, but at node initialisation time, this
function pointer is updated to the vector version if supported, and
if it is within the max SIMD bitwidth limit.

Signed-off-by: Ciara Power <ciara.power@intel.com>
Acked-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
This commit is contained in:
Ciara Power 2020-10-19 15:48:57 +02:00 committed by David Marchand
parent 209fd1984a
commit 13facf47d6
3 changed files with 12 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
lib/librte_node/ip4_lookup.c
View File

@ -15,6 +15,7 @@
#include <rte_mbuf.h>
#include <rte_tcp.h>
#include <rte_udp.h>
#include <rte_vect.h>
#include "rte_node_ip4_api.h"
@ -34,10 +35,10 @@ static struct ip4_lookup_node_main ip4_lookup_nm;
#include "ip4_lookup_neon.h"
#elif defined(RTE_ARCH_X86)
#include "ip4_lookup_sse.h"
#else
#endif
static uint16_t
ip4_lookup_node_process(struct rte_graph *graph, struct rte_node *node,
ip4_lookup_node_process_scalar(struct rte_graph *graph, struct rte_node *node,
void **objs, uint16_t nb_objs)
{
struct rte_ipv4_hdr *ipv4_hdr;
@ -109,8 +110,6 @@ ip4_lookup_node_process(struct rte_graph *graph, struct rte_node *node,
return nb_objs;
}
#endif
int
rte_node_ip4_route_add(uint32_t ip, uint8_t depth, uint16_t next_hop,
enum rte_node_ip4_lookup_next next_node)
@ -194,13 +193,19 @@ ip4_lookup_node_init(const struct rte_graph *graph, struct rte_node *node)
init_once = 1;
}
*lpm_p = ip4_lookup_nm.lpm_tbl[graph->socket];
#if defined(__ARM_NEON) || defined(RTE_ARCH_X86)
if (rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_128)
node->process = ip4_lookup_node_process_vec;
#endif
node_dbg("ip4_lookup", "Initialized ip4_lookup node");
return 0;
}
static struct rte_node_register ip4_lookup_node = {
.process = ip4_lookup_node_process,
.process = ip4_lookup_node_process_scalar,
.name = "ip4_lookup",
.init = ip4_lookup_node_init,

2
lib/librte_node/ip4_lookup_neon.h
View File

@ -7,7 +7,7 @@
/* ARM64 NEON */
static uint16_t
ip4_lookup_node_process(struct rte_graph *graph, struct rte_node *node,
ip4_lookup_node_process_vec(struct rte_graph *graph, struct rte_node *node,
void **objs, uint16_t nb_objs)
{
struct rte_mbuf *mbuf0, *mbuf1, *mbuf2, *mbuf3, **pkts;

2
lib/librte_node/ip4_lookup_sse.h
View File

@ -7,7 +7,7 @@
/* X86 SSE */
static uint16_t
ip4_lookup_node_process(struct rte_graph *graph, struct rte_node *node,
ip4_lookup_node_process_vec(struct rte_graph *graph, struct rte_node *node,
void **objs, uint16_t nb_objs)
{
struct rte_mbuf *mbuf0, *mbuf1, *mbuf2, *mbuf3, **pkts;