[v9,10/18] net/ixgbe: add checks for max SIMD bitwidth
diff mbox series

Message ID 20201016142742.87297-11-ciara.power@intel.com
State Superseded
Delegated to: David Marchand
Headers show
Series
  • add max SIMD bitwidth to EAL
Related show

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Ciara Power Oct. 16, 2020, 2:27 p.m. UTC
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.

Cc: Wei Zhao <wei.zhao1@intel.com>
Cc: Jeff Guo <jia.guo@intel.com>

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>

---
v4:
  - Updated enum name.
  - Moved placement of condition check.
  - Added condition check to tx cleanup path selection.
---
 drivers/net/ixgbe/ixgbe_rxtx.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

Patch
diff mbox series

diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c
index 29d385c062..3141398e10 100644
--- a/drivers/net/ixgbe/ixgbe_rxtx.c
+++ b/drivers/net/ixgbe/ixgbe_rxtx.c
@@ -2405,6 +2405,7 @@  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_get_max_simd_bitwidth() >= RTE_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 +2504,7 @@  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_get_max_simd_bitwidth() >= RTE_SIMD_128 &&
 				(rte_eal_process_type() != RTE_PROC_PRIMARY ||
 					ixgbe_txq_vec_setup(txq) == 0)) {
 			PMD_INIT_LOG(DEBUG, "Vector tx enabled.");
@@ -4744,7 +4746,8 @@  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_get_max_simd_bitwidth() < RTE_SIMD_128) {
 		PMD_INIT_LOG(DEBUG, "Port[%d] doesn't meet Vector Rx "
 				    "preconditions",
 			     dev->data->port_id);