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net/iavf: fix driver crash when enable TSO

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The iavf driver crashes when forwarding packets with TSO
enabled. The reason is that the tx context descriptor
configuration is not transferred to tx-ring. This step is
added in this patch.

Fixes: a2b29a7733ef ("net/avf: enable basic Rx Tx")
Cc: stable@dpdk.org

Signed-off-by: Ting Xu <ting.xu@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
This commit is contained in:
Ting Xu 2019-07-16 16:12:25 +00:00 committed by Ferruh Yigit
parent db87e1e3c1
commit e3258d02c2
1 changed files with 6 additions and 0 deletions
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6
drivers/net/iavf/iavf_rxtx.c
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@ -1580,6 +1580,9 @@ iavf_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
/* Setup TX context descriptor if required */
uint64_t cd_type_cmd_tso_mss =
IAVF_TX_DESC_DTYPE_CONTEXT;
volatile struct iavf_tx_context_desc *ctx_txd =
(volatile struct iavf_tx_context_desc *)
&txr[tx_id];
txn = &sw_ring[txe->next_id];
RTE_MBUF_PREFETCH_TO_FREE(txn->mbuf);
@ -1593,6 +1596,9 @@ iavf_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
cd_type_cmd_tso_mss |=
iavf_set_tso_ctx(tx_pkt, tx_offload);
ctx_txd->type_cmd_tso_mss =
rte_cpu_to_le_64(cd_type_cmd_tso_mss);
IAVF_DUMP_TX_DESC(txq, &txr[tx_id], tx_id);
txe->last_id = tx_last;
tx_id = txe->next_id;