Hi,
It seems that sq_sig_all is not properly set when creating the QP or
when querying it. The following programs creates a bunch of QP with
sq_sig_all set to 0 and then queries them. Often sq_sig_all is returned
to be 1.
I tested some other returned values and they seem correct.
I didn't see anything wrong in the libraries nor in the drivers.
Tested with an mthca on OFED 1.5.1 and mlx4 on OFED 1.3.1.
Any idea ?
Frank.
For instance:
[fzago]$ ./testqp
failed at loop 167 (sq_sig_all=1)
Regards,
Frank.
/*
* Invalid sq_sig_all test
*
* Compile with gcc -Wall -O2 -libverbs testqp.c -o testqp
*/
#include <stdio.h>
#include <assert.h>
#include <string.h>
#include <stdlib.h>
#include <infiniband/verbs.h>
#define NUM 10000
int main(void)
{
struct ibv_context *context;
struct ibv_pd *pd;
struct ibv_device **dev_list;
struct ibv_device *ib_dev;
struct ibv_qp_init_attr qp_init_attr;
struct ibv_qp *qp[NUM];
struct ibv_cq *cq;
struct ibv_qp_attr attr;
int rc;
int i;
dev_list = ibv_get_device_list(NULL);
ib_dev = dev_list[0];
assert(ib_dev);
context = ibv_open_device(ib_dev);
assert(context);
pd = ibv_alloc_pd(context);
assert(pd);
cq = ibv_create_cq(context, 10, NULL, NULL, 0);
assert(cq);
for (i=0; i<NUM; i++) {
memset(&qp_init_attr, 0, sizeof(qp_init_attr));
qp_init_attr.send_cq = cq;
qp_init_attr.recv_cq = cq;
qp_init_attr.cap.max_send_wr = 10;
qp_init_attr.cap.max_recv_wr = 10;
qp_init_attr.cap.max_send_sge = 1;
qp_init_attr.cap.max_recv_sge = 1;
qp_init_attr.qp_type = IBV_QPT_RC;
assert(qp_init_attr.sq_sig_all == 0);
qp[i] = ibv_create_qp(pd, &qp_init_attr);
assert(qp[i]);
rc = ibv_query_qp(qp[i], &attr, 0xffffffff, &qp_init_attr);
assert(rc == 0);
if (qp_init_attr.sq_sig_all != 0) {
printf("failed at loop %d (sq_sig_all=%d)\n", i,
qp_init_attr.sq_sig_all);
abort();
}
}
return 0;
}
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