net/ena/base: fix doorbell evaluation for LLQ

This patch adds a missing LLQ-related check in the
ena_com_is_doorbell_needed() routine, which is relevant for the feature
supported by the next generation HW of the ENA.

Fixes: b2b02edeb0d6 ("net/ena/base: upgrade HAL for new HW features")
CC: stable@dpdk.org
Signed-off-by: Michal Krawczyk <mk@semihalf.com>
Signed-off-by: Artur Rojek <ar@semihalf.com>

diff --git a/drivers/net/ena/base/ena_eth_com.h b/drivers/net/ena/base/ena_eth_com.h
index e37b642..3d66237 100644 (file)
--- a/drivers/net/ena/base/ena_eth_com.h
+++ b/drivers/net/ena/base/ena_eth_com.h
@@ -133,7 +133,8 @@ static inline bool ena_com_is_doorbell_needed(struct ena_com_io_sq *io_sq,
        llq_info = &io_sq->llq_info;
        num_descs = ena_tx_ctx->num_bufs;
 
-       if (unlikely(ena_com_meta_desc_changed(io_sq, ena_tx_ctx)))
+       if (llq_info->disable_meta_caching ||
+           unlikely(ena_com_meta_desc_changed(io_sq, ena_tx_ctx)))
                ++num_descs;
 
        if (num_descs > llq_info->descs_num_before_header) {