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net/ixgbe: check max SIMD bitwidth

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When choosing a vector path to take, an extra condition must be
satisfied to ensure the max SIMD bitwidth allows for the CPU enabled
path.

Signed-off-by: Ciara Power <ciara.power@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Reviewed-by: Haiyue Wang <haiyue.wang@intel.com>
This commit is contained in:
Ciara Power 2020-10-19 15:48:50 +02:00 committed by David Marchand
parent c3d9ed69ff
commit a3fd191a41
1 changed files with 5 additions and 1 deletions
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6
drivers/net/ixgbe/ixgbe_rxtx.c
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@ -42,6 +42,7 @@
#include <rte_errno.h>
#include <rte_ip.h>
#include <rte_net.h>
#include <rte_vect.h>
#include "ixgbe_logs.h"
#include "base/ixgbe_api.h"
@ -2405,6 +2406,7 @@ ixgbe_dev_tx_done_cleanup(void *tx_queue, uint32_t free_cnt)
#endif
txq->tx_rs_thresh >= RTE_PMD_IXGBE_TX_MAX_BURST) {
if (txq->tx_rs_thresh <= RTE_IXGBE_TX_MAX_FREE_BUF_SZ &&
rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_128 &&
(rte_eal_process_type() != RTE_PROC_PRIMARY ||
txq->sw_ring_v != NULL)) {
return ixgbe_tx_done_cleanup_vec(txq, free_cnt);
@ -2503,6 +2505,7 @@ ixgbe_set_tx_function(struct rte_eth_dev *dev, struct ixgbe_tx_queue *txq)
PMD_INIT_LOG(DEBUG, "Using simple tx code path");
dev->tx_pkt_prepare = NULL;
if (txq->tx_rs_thresh <= RTE_IXGBE_TX_MAX_FREE_BUF_SZ &&
rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_128 &&
(rte_eal_process_type() != RTE_PROC_PRIMARY ||
ixgbe_txq_vec_setup(txq) == 0)) {
PMD_INIT_LOG(DEBUG, "Vector tx enabled.");
@ -4744,7 +4747,8 @@ ixgbe_set_rx_function(struct rte_eth_dev *dev)
* conditions to be met and Rx Bulk Allocation should be allowed.
*/
if (ixgbe_rx_vec_dev_conf_condition_check(dev) ||
!adapter->rx_bulk_alloc_allowed) {
!adapter->rx_bulk_alloc_allowed ||
rte_vect_get_max_simd_bitwidth() < RTE_VECT_SIMD_128) {
PMD_INIT_LOG(DEBUG, "Port[%d] doesn't meet Vector Rx "
"preconditions",
dev->data->port_id);