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From: Artur Rojek <ar@semihalf.com>
To: Marcin Wojtas <mw@semihalf.com>,
	Michal Krawczyk <mk@semihalf.com>,
	Guy Tzalik <gtzalik@amazon.com>,
	Igor Chauskin <igorch@amazon.com>
Cc: dev@dpdk.org, stable@dpdk.org, Artur Rojek <ar@semihalf.com>
Subject: [dpdk-dev] [PATCH] net/ena/base: fix doorbell evaluation for the LLQ case
Date: Wed, 12 Aug 2020 18:37:29 +0200	[thread overview]
Message-ID: <20200812163729.4933-1-ar@semihalf.com> (raw)

From: Michal Krawczyk <mk@semihalf.com>

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>
[Extracted from a bigger patch]
Signed-off-by: Artur Rojek <ar@semihalf.com>
---
 drivers/net/ena/base/ena_eth_com.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ena/base/ena_eth_com.h b/drivers/net/ena/base/ena_eth_com.h
index e37b642d4..3d66237b8 100644
--- 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) {
-- 
2.28.0


             reply	other threads:[~2020-08-18 13:42 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-12 16:37 Artur Rojek [this message]
2020-08-13 18:07 ` [dpdk-dev] [PATCH] net/ena/base: fix doorbell evaluation for the LLQ case Marcin Wojtas
2020-08-18 15:26   ` [dpdk-dev] [dpdk-stable] " Ferruh Yigit

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