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app/testpmd: support no IOVA contiguous mempools

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providing a command line parameter to set the mempool flags accordingly.
This mode is relevant only when creating an empty mempool and then
populating with memory.

Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
This commit is contained in:
Shahaf Shuler 2019-04-07 08:02:25 +03:00 committed by Ferruh Yigit
parent 401b744da2
commit 59fcf854ed
4 changed files with 22 additions and 1 deletions
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13
app/test-pmd/parameters.c
View File

@ -202,6 +202,8 @@ usage(char* progname)
printf(" --noisy-lkup-num-writes=N: do N random writes per packet\n");
printf(" --noisy-lkup-num-reads=N: do N random reads per packet\n");
printf(" --noisy-lkup-num-writes=N: do N random reads and writes per packet\n");
printf(" --no-iova-contig: mempool memory can be IOVA non contiguous. "
"valid only with --mp-alloc=anon\n");
}
#ifdef RTE_LIBRTE_CMDLINE
@ -651,6 +653,7 @@ launch_args_parse(int argc, char** argv)
{ "noisy-lkup-num-writes", 1, 0, 0 },
{ "noisy-lkup-num-reads", 1, 0, 0 },
{ "noisy-lkup-num-reads-writes", 1, 0, 0 },
{ "no-iova-contig", 0, 0, 0 },
{ 0, 0, 0, 0 },
};
@ -1242,6 +1245,8 @@ launch_args_parse(int argc, char** argv)
rte_exit(EXIT_FAILURE,
"noisy-lkup-num-reads-writes must be >= 0\n");
}
if (!strcmp(lgopts[opt_idx].name, "no-iova-contig"))
mempool_flags = MEMPOOL_F_NO_IOVA_CONTIG;
break;
case 'h':
usage(argv[0]);
@ -1258,4 +1263,12 @@ launch_args_parse(int argc, char** argv)
/* Set offload configuration from command line parameters. */
rx_mode.offloads = rx_offloads;
tx_mode.offloads = tx_offloads;
if (mempool_flags & MEMPOOL_F_NO_IOVA_CONTIG &&
mp_alloc_type != MP_ALLOC_ANON) {
TESTPMD_LOG(WARNING, "cannot use no-iova-contig without "
"mp-alloc=anon. mempool no-iova-contig is "
"ignored\n");
mempool_flags = 0;
}
}

3
app/test-pmd/testpmd.c
View File

@ -189,6 +189,7 @@ struct fwd_engine * fwd_engines[] = {
};
struct rte_mempool *mempools[RTE_MAX_NUMA_NODES];
uint16_t mempool_flags;
struct fwd_config cur_fwd_config;
struct fwd_engine *cur_fwd_eng = &io_fwd_engine; /**< IO mode by default. */
@ -867,7 +868,7 @@ mbuf_pool_create(uint16_t mbuf_seg_size, unsigned nb_mbuf,
rte_mp = rte_mempool_create_empty(pool_name, nb_mbuf,
mb_size, (unsigned int) mb_mempool_cache,
sizeof(struct rte_pktmbuf_pool_private),
socket_id, 0);
socket_id, mempool_flags);
if (rte_mp == NULL)
goto err;

2
app/test-pmd/testpmd.h
View File

@ -264,6 +264,8 @@ extern struct fwd_engine ieee1588_fwd_engine;
extern struct fwd_engine * fwd_engines[]; /**< NULL terminated array. */
extern uint16_t mempool_flags;
/**
* Forwarding Configuration
*

5
doc/guides/testpmd_app_ug/run_app.rst
View File

@ -427,3 +427,8 @@ The commandline options are:
Set the number of r/w accesses to be done in noisy neighbour simulation memory buffer to N.
Only available with the noisy forwarding mode. The default value is 0.
* ``--no-iova-contig``
Enable to create mempool which is not IOVA contiguous. Valid only with --mp-alloc=anon.
The default value is 0.