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examples/exception_path: limit core count to 64

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Application doesn't support more that 64 lcores due to command
line limitation of using a coremask that is parsed as a 64bit
value, so changed it to reflect this limitation.

Coverity issue: 30688
Fixes: af75078fece3 ("first public release")
Cc: stable@dpdk.org

Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
This commit is contained in:
Radu Nicolau 2018-02-20 12:05:57 +00:00 committed by Thomas Monjalon
parent f0b9479497
commit f93c7cd082
1 changed files with 14 additions and 4 deletions
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18
examples/exception_path/main.c
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@ -41,13 +41,21 @@
#include <rte_string_fns.h> #include <rte_string_fns.h>
#include <rte_cycles.h> #include <rte_cycles.h>
#ifndef APP_MAX_LCORE
#if (RTE_MAX_LCORE > 64)
#define APP_MAX_LCORE 64
#else
#define APP_MAX_LCORE RTE_MAX_LCORE
#endif
#endif
/* Macros for printing using RTE_LOG */ /* Macros for printing using RTE_LOG */
#define RTE_LOGTYPE_APP RTE_LOGTYPE_USER1 #define RTE_LOGTYPE_APP RTE_LOGTYPE_USER1
#define FATAL_ERROR(fmt, args...) rte_exit(EXIT_FAILURE, fmt "\n", ##args) #define FATAL_ERROR(fmt, args...) rte_exit(EXIT_FAILURE, fmt "\n", ##args)
#define PRINT_INFO(fmt, args...) RTE_LOG(INFO, APP, fmt "\n", ##args) #define PRINT_INFO(fmt, args...) RTE_LOG(INFO, APP, fmt "\n", ##args)
/* Max ports than can be used (each port is associated with two lcores) */ /* Max ports than can be used (each port is associated with two lcores) */
#define MAX_PORTS (RTE_MAX_LCORE / 2) #define MAX_PORTS (APP_MAX_LCORE / 2)
/* Max size of a single packet */ /* Max size of a single packet */
#define MAX_PACKET_SZ (2048) #define MAX_PACKET_SZ (2048)
@ -101,7 +109,7 @@ static uint64_t input_cores_mask = 0;
static uint64_t output_cores_mask = 0; static uint64_t output_cores_mask = 0;
/* Array storing port_id that is associated with each lcore */ /* Array storing port_id that is associated with each lcore */
static uint16_t port_ids[RTE_MAX_LCORE]; static uint16_t port_ids[APP_MAX_LCORE];
/* Structure type for recording lcore-specific stats */ /* Structure type for recording lcore-specific stats */
struct stats { struct stats {
@ -111,7 +119,7 @@ struct stats {
} __rte_cache_aligned; } __rte_cache_aligned;
/* Array of lcore-specific stats */ /* Array of lcore-specific stats */
static struct stats lcore_stats[RTE_MAX_LCORE]; static struct stats lcore_stats[APP_MAX_LCORE];
/* Print out statistics on packets handled */ /* Print out statistics on packets handled */
static void static void
@ -330,7 +338,9 @@ setup_port_lcore_affinities(void)
uint16_t rx_port = 0; uint16_t rx_port = 0;
/* Setup port_ids[] array, and check masks were ok */ /* Setup port_ids[] array, and check masks were ok */
RTE_LCORE_FOREACH(i) { for (i = 0; i < APP_MAX_LCORE; i++) {
if (!rte_lcore_is_enabled(i))
continue;
if (input_cores_mask & (1ULL << i)) { if (input_cores_mask & (1ULL << i)) {
/* Skip ports that are not enabled */ /* Skip ports that are not enabled */
while ((ports_mask & (1 << rx_port)) == 0) { while ((ports_mask & (1 << rx_port)) == 0) {