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* [dpdk-users] DPDK: IP reassemble segmentation fault for rte_ip_frag_table_create.
@ 2020-10-19 10:35 Nirmal R
  2020-10-20  9:49 ` Nirmal R
  0 siblings, 1 reply; 2+ messages in thread
From: Nirmal R @ 2020-10-19 10:35 UTC (permalink / raw)
  To: users

Hello,



I am new to DPDK and writing the code in c++ language, currently working on
IP reassembling the packets below is my sample code which is giving me
segmentation fault for rte_ip_frag_table_create, I am unable to debug the
issue. Much appreciated if someone can explain to me where did I go wrong
and how to do it in a proper manner. At the moment I am finding it
difficult. Thanks in advance.



#define BUFFER_RING_SIZE 65536

#define BUFFER_LENGTH 1500

#define POOL_SIZE 8192

#define POOL_CACHE_SIZE 256



#define DEF_FLOW_NUM    0x1000

#define DEF_FLOW_TTL    MS_PER_S

#define IP_FRAG_TBL_BUCKET_ENTRIES  4

static uint32_t max_flow_num = DEF_FLOW_NUM;

static uint32_t max_flow_ttl = DEF_FLOW_TTL;

#define RTE_LOGTYPE_IP_RSMBL RTE_LOGTYPE_USER1



struct lcore_queue_conf {

            struct rte_ip_frag_tbl *frag_tbl;

            struct rte_ip_frag_death_row death_row;

} __rte_cache_aligned;





static inline int setup_queue_tbl(struct lcore_queue_conf *qconf)

{

    uint64_t frag_cycles = (rte_get_tsc_hz() + MS_PER_S - 1) / MS_PER_S *
max_flow_ttl;

    qconf->frag_tbl = rte_ip_frag_table_create(max_flow_num,
IP_FRAG_TBL_BUCKET_ENTRIES, max_flow_num, frag_cycles, rte_socket_id());

    if((qconf->frag_tbl) == NULL){

                        RTE_LOG(ERR, IP_RSMBL, "Table Failed.");

                        return -1;

     }

    return 0;

}



static int

lcore_main()

{

            struct lcore_queue_conf *qconf;



            if(setup_queue_tbl(qconf) != 0)

            rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno));



.

.

.

.



}



int main(int argc, char *argv[])

{



            struct rte_mempool *mbuf_pool;

            struct rte_ring *ring;

            uint16_t portcheck;



            /* catch ctrl-c so we can print on exit */

            signal(SIGINT, int_handler);



            /* EAL setup */

            ret=rte_eal_init(argc, argv);

            cout << "====================================================="
<< endl;

            if(ret < 0)

                        cout << EAL initialising failed." <<
strerror(-ret) << endl;

            else

                        cout << EAL initialisation success." << endl;



            /* Mempool creation */



            mbuf_pool=rte_pktmbuf_pool_create("BUFFER", POOL_SIZE,
POOL_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());



            if(mbuf_pool== NULL)

            rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno));

.

.

.

.

            /* Master core call */

            lcore_main();



            return 0;

}





EAL: Detected 12 lcore(s)

EAL: Detected 1 NUMA nodes

EAL: Multi-process socket /var/run/dpdk/rte/mp_socket

EAL: Selected IOVA mode 'VA'

EAL: Probing VFIO support...

EAL: VFIO support initialized

EAL:   Invalid NUMA socket, default to 0

EAL:   Invalid NUMA socket, default to 0

EAL:   using IOMMU type 1 (Type 1)

EAL: Probe PCI driver: net_ixgbe (8086:15d1) device: 0000:01:00.0 (socket 0)

EAL:   Invalid NUMA socket, default to 0

EAL: No legacy callbacks, legacy socket not created

=====================================================

EAL initialisation success.

PORT 0: Ethernet configuration success.

TX queue configuration success.

RX queue configuration success.

PORT 0: NIC started successfully.

PORT 0: Enabled promiscuous mode.

MAC Addr b4:96:91:3f:21:b6

=====================================================

USER1: rte_ip_frag_table_create: allocated of 6291584 bytes at socket 0

Segmentation fault



With Regards,

Nirmal.

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: [dpdk-users] DPDK: IP reassemble segmentation fault for rte_ip_frag_table_create.
  2020-10-19 10:35 [dpdk-users] DPDK: IP reassemble segmentation fault for rte_ip_frag_table_create Nirmal R
@ 2020-10-20  9:49 ` Nirmal R
  0 siblings, 0 replies; 2+ messages in thread
From: Nirmal R @ 2020-10-20  9:49 UTC (permalink / raw)
  To: users

Hello,

Issue resolved after assigning memory to each lcore. Thank you.

With Regards,
Nirmal

On Mon, Oct 19, 2020 at 12:35 PM Nirmal R <raja.nirmalraj@gmail.com> wrote:

> Hello,
>
>
>
> I am new to DPDK and writing the code in c++ language, currently working
> on IP reassembling the packets below is my sample code which is giving me
> segmentation fault for rte_ip_frag_table_create, I am unable to debug the
> issue. Much appreciated if someone can explain to me where did I go wrong
> and how to do it in a proper manner. At the moment I am finding it
> difficult. Thanks in advance.
>
>
>
> #define BUFFER_RING_SIZE 65536
>
> #define BUFFER_LENGTH 1500
>
> #define POOL_SIZE 8192
>
> #define POOL_CACHE_SIZE 256
>
>
>
> #define DEF_FLOW_NUM    0x1000
>
> #define DEF_FLOW_TTL    MS_PER_S
>
> #define IP_FRAG_TBL_BUCKET_ENTRIES  4
>
> static uint32_t max_flow_num = DEF_FLOW_NUM;
>
> static uint32_t max_flow_ttl = DEF_FLOW_TTL;
>
> #define RTE_LOGTYPE_IP_RSMBL RTE_LOGTYPE_USER1
>
>
>
> struct lcore_queue_conf {
>
>             struct rte_ip_frag_tbl *frag_tbl;
>
>             struct rte_ip_frag_death_row death_row;
>
> } __rte_cache_aligned;
>
>
>
>
>
> static inline int setup_queue_tbl(struct lcore_queue_conf *qconf)
>
> {
>
>     uint64_t frag_cycles = (rte_get_tsc_hz() + MS_PER_S - 1) / MS_PER_S *
> max_flow_ttl;
>
>     qconf->frag_tbl = rte_ip_frag_table_create(max_flow_num,
> IP_FRAG_TBL_BUCKET_ENTRIES, max_flow_num, frag_cycles, rte_socket_id());
>
>     if((qconf->frag_tbl) == NULL){
>
>                         RTE_LOG(ERR, IP_RSMBL, "Table Failed.");
>
>                         return -1;
>
>      }
>
>     return 0;
>
> }
>
>
>
> static int
>
> lcore_main()
>
> {
>
>             struct lcore_queue_conf *qconf;
>
>
>
>             if(setup_queue_tbl(qconf) != 0)
>
>             rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno));
>
>
>
> .
>
> .
>
> .
>
> .
>
>
>
> }
>
>
>
> int main(int argc, char *argv[])
>
> {
>
>
>
>             struct rte_mempool *mbuf_pool;
>
>             struct rte_ring *ring;
>
>             uint16_t portcheck;
>
>
>
>             /* catch ctrl-c so we can print on exit */
>
>             signal(SIGINT, int_handler);
>
>
>
>             /* EAL setup */
>
>             ret=rte_eal_init(argc, argv);
>
>             cout <<
> "=====================================================" << endl;
>
>             if(ret < 0)
>
>                         cout << EAL initialising failed." <<
> strerror(-ret) << endl;
>
>             else
>
>                         cout << EAL initialisation success." << endl;
>
>
>
>             /* Mempool creation */
>
>
>
>             mbuf_pool=rte_pktmbuf_pool_create("BUFFER", POOL_SIZE,
> POOL_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
>
>
>
>             if(mbuf_pool== NULL)
>
>             rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno));
>
> .
>
> .
>
> .
>
> .
>
>             /* Master core call */
>
>             lcore_main();
>
>
>
>             return 0;
>
> }
>
>
>
>
>
> EAL: Detected 12 lcore(s)
>
> EAL: Detected 1 NUMA nodes
>
> EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
>
> EAL: Selected IOVA mode 'VA'
>
> EAL: Probing VFIO support...
>
> EAL: VFIO support initialized
>
> EAL:   Invalid NUMA socket, default to 0
>
> EAL:   Invalid NUMA socket, default to 0
>
> EAL:   using IOMMU type 1 (Type 1)
>
> EAL: Probe PCI driver: net_ixgbe (8086:15d1) device: 0000:01:00.0 (socket
> 0)
>
> EAL:   Invalid NUMA socket, default to 0
>
> EAL: No legacy callbacks, legacy socket not created
>
> =====================================================
>
> EAL initialisation success.
>
> PORT 0: Ethernet configuration success.
>
> TX queue configuration success.
>
> RX queue configuration success.
>
> PORT 0: NIC started successfully.
>
> PORT 0: Enabled promiscuous mode.
>
> MAC Addr b4:96:91:3f:21:b6
>
> =====================================================
>
> USER1: rte_ip_frag_table_create: allocated of 6291584 bytes at socket 0
>
> Segmentation fault
>
>
>
> With Regards,
>
> Nirmal.
>
>

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2020-10-19 10:35 [dpdk-users] DPDK: IP reassemble segmentation fault for rte_ip_frag_table_create Nirmal R
2020-10-20  9:49 ` Nirmal R

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