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net/mlx5: fix secondary process mempool registration

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Secondary process is not allowed to register mempools on the flight.

The code will return invalid memory key for such case.

Fixes: 87ec44ce1651 ("net/mlx5: add operations for secondary process")
Cc: stable@dpdk.org

Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>
Signed-off-by: Xueming Li <xuemingl@mellanox.com>
Acked-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
This commit is contained in:
Shahaf Shuler 2018-01-25 18:17:59 +02:00 committed by Ferruh Yigit
parent 95086c6543
commit a482a41a63
2 changed files with 13 additions and 2 deletions
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6
doc/guides/nics/mlx5.rst
View File

@ -106,7 +106,11 @@ Limitations
- Inner RSS for VXLAN frames is not supported yet.
- Hardware checksum RX offloads for VXLAN inner header are not supported yet.
- Forked secondary process not supported.
- For secondary process:
- Forked secondary process not supported.
- All mempools must be initialized before rte_eth_dev_start().
- Flow pattern without any specific vlan will match for vlan packets as well:
When VLAN spec is not specified in the pattern, the matching rule will be created with VLAN as a wild card.

9
drivers/net/mlx5/mlx5_mr.c
View File

@ -141,8 +141,15 @@ priv_txq_mp2mr_reg(struct priv *priv, struct mlx5_txq_data *txq,
DEBUG("%p: discovered new memory pool \"%s\" (%p)",
(void *)txq_ctrl, mp->name, (void *)mp);
mr = priv_mr_get(priv, mp);
if (mr == NULL)
if (mr == NULL) {
if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
DEBUG("Using unregistered mempool 0x%p(%s) in secondary process,"
" please create mempool before rte_eth_dev_start()",
(void *)mp, mp->name);
return NULL;
}
mr = priv_mr_new(priv, mp);
}
if (unlikely(mr == NULL)) {
DEBUG("%p: unable to configure MR, ibv_reg_mr() failed.",
(void *)txq_ctrl);