The mempool cache size of mbuf is set to
RTE_MEMPOOL_CACHE_MAX_SIZE as default. This patch allows
users to configure the cache size by "--mbcache", and limits
the paramater to a maximum of RTE_MEMPOOL_CACHE_MAX_SIZE.
Signed-off-by: Jie Hai <haij...@huawei.com>
---
examples/l3fwd/l3fwd.h | 1 +
examples/l3fwd/main.c | 33 ++++++++++++++++++++++++++++++---
2 files changed, 31 insertions(+), 3 deletions(-)
diff --git a/examples/l3fwd/l3fwd.h b/examples/l3fwd/l3fwd.h
index 618e0eaa3af1..0cce3406ee7d 100644
--- a/examples/l3fwd/l3fwd.h
+++ b/examples/l3fwd/l3fwd.h
@@ -117,6 +117,7 @@ extern struct acl_algorithms acl_alg[];
extern uint32_t max_pkt_len;
extern uint32_t nb_pkt_per_burst;
+extern uint32_t mb_mempool_cache_size;
/* Send burst of packets on an output interface */
static inline int
diff --git a/examples/l3fwd/main.c b/examples/l3fwd/main.c
index 2feae5b311a2..1e2da739dded 100644
--- a/examples/l3fwd/main.c
+++ b/examples/l3fwd/main.c
@@ -58,6 +58,7 @@ static_assert(MEMPOOL_CACHE_SIZE >= MAX_PKT_BURST);
uint16_t nb_rxd = RX_DESC_DEFAULT;
uint16_t nb_txd = TX_DESC_DEFAULT;
uint32_t nb_pkt_per_burst = DEFAULT_PKT_BURST;
+uint32_t mb_mempool_cache_size = MEMPOOL_CACHE_SIZE;
/**< Ports set in promiscuous mode off by default. */
static int promiscuous_on;
@@ -399,6 +400,7 @@ print_usage(const char *prgname)
" [--rx-queue-size NPKTS]"
" [--tx-queue-size NPKTS]"
" [--burst NPKTS]"
+ " [--mbcache CACHESZ]"
" [--eth-dest=X,MM:MM:MM:MM:MM:MM]"
" [--max-pkt-len PKTLEN]"
" [--no-numa]"
@@ -426,6 +428,8 @@ print_usage(const char *prgname)
" Default: %d\n"
" --burst NPKTS: Burst size in decimal\n"
" Default: %d\n"
+ " --mbcache CACHESZ: Cache size in decimal\n"
+ " Default: %d\n"
" --eth-dest=X,MM:MM:MM:MM:MM:MM: Ethernet destination for port
X\n"
" --max-pkt-len PKTLEN: maximum packet length in decimal
(64-9600)\n"
" --no-numa: Disable numa awareness\n"
@@ -455,7 +459,7 @@ print_usage(const char *prgname)
" another is route entry at while line leads with
character '%c'.\n"
" --rule_ipv6=FILE: Specify the ipv6 rules entries file.\n"
" --alg: ACL classify method to use, one of: %s.\n\n",
- prgname, RX_DESC_DEFAULT, TX_DESC_DEFAULT, DEFAULT_PKT_BURST,
+ prgname, RX_DESC_DEFAULT, TX_DESC_DEFAULT, DEFAULT_PKT_BURST,
MEMPOOL_CACHE_SIZE,
ACL_LEAD_CHAR, ROUTE_LEAD_CHAR, alg);
}
@@ -673,6 +677,22 @@ parse_lookup(const char *optarg)
return 0;
}
+static void
+parse_mbcache_size(const char *optarg)
+{
+ unsigned long mb_cache_size;
+ char *end = NULL;
+
+ mb_cache_size = strtoul(optarg, &end, 10);
+ if ((optarg[0] == '\0') || (end == NULL) || (*end != '\0'))
+ return;
+ if (mb_cache_size <= RTE_MEMPOOL_CACHE_MAX_SIZE)
+ mb_mempool_cache_size = (uint32_t)mb_cache_size;
+ else
+ rte_exit(EXIT_FAILURE, "mbcache must be >= 0 and <= %d\n",
+ RTE_MEMPOOL_CACHE_MAX_SIZE);
+}
+
static void
parse_pkt_burst(const char *optarg)
{
@@ -748,6 +768,7 @@ static const char short_options[] =
#define CMD_LINE_OPT_RULE_IPV6 "rule_ipv6"
#define CMD_LINE_OPT_ALG "alg"
#define CMD_LINE_OPT_PKT_BURST "burst"
+#define CMD_LINE_OPT_MB_CACHE_SIZE "mbcache"
enum {
/* long options mapped to a short option */
@@ -777,7 +798,8 @@ enum {
CMD_LINE_OPT_ENABLE_VECTOR_NUM,
CMD_LINE_OPT_VECTOR_SIZE_NUM,
CMD_LINE_OPT_VECTOR_TMO_NS_NUM,
- CMD_LINE_OPT_PKT_BURST_NUM
+ CMD_LINE_OPT_PKT_BURST_NUM,
+ CMD_LINE_OPT_MB_CACHE_SIZE_NUM
};
static const struct option lgopts[] = {
@@ -805,6 +827,7 @@ static const struct option lgopts[] = {
{CMD_LINE_OPT_RULE_IPV6, 1, 0, CMD_LINE_OPT_RULE_IPV6_NUM},
{CMD_LINE_OPT_ALG, 1, 0, CMD_LINE_OPT_ALG_NUM},
{CMD_LINE_OPT_PKT_BURST, 1, 0, CMD_LINE_OPT_PKT_BURST_NUM},
+ {CMD_LINE_OPT_MB_CACHE_SIZE, 1, 0, CMD_LINE_OPT_MB_CACHE_SIZE_NUM},
{NULL, 0, 0, 0}
};
@@ -897,6 +920,10 @@ parse_args(int argc, char **argv)
parse_pkt_burst(optarg);
break;
+ case CMD_LINE_OPT_MB_CACHE_SIZE_NUM:
+ parse_mbcache_size(optarg);
+ break;
+
case CMD_LINE_OPT_ETH_DEST_NUM:
parse_eth_dest(optarg);
break;
@@ -1089,7 +1116,7 @@ init_mem(uint16_t portid, unsigned int nb_mbuf)
portid, socketid);
pktmbuf_pool[portid][socketid] =
rte_pktmbuf_pool_create(s, nb_mbuf,
- MEMPOOL_CACHE_SIZE, 0,
+ mb_mempool_cache_size, 0,
RTE_MBUF_DEFAULT_BUF_SIZE, socketid);
if (pktmbuf_pool[portid][socketid] == NULL)
rte_exit(EXIT_FAILURE,
