From: Michal Krawczyk <mk@semihalf.com>
To: dev@dpdk.org
Cc: gtzalik@dpdk.org, mw@dpdk.org, matua@amazon.com, rk@semihalf.com
Subject: [dpdk-dev] [PATCH 08/20] net/ena: call additional doorbells if needed
Date: Fri, 14 Dec 2018 14:18:34 +0100 [thread overview]
Message-ID: <20181214131846.22439-9-mk@semihalf.com> (raw)
In-Reply-To: <20181214131846.22439-1-mk@semihalf.com>
From: Rafal Kozik <rk@semihalf.com>
Before sending next packet, check if calling doorbell is needed.
Signed-off-by: Rafal Kozik <rk@semihalf.com>
Acked-by: Michal Krawczyk <mk@semihalf.com>
---
drivers/net/ena/ena_ethdev.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
index f83552377..5f7dec086 100644
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c
@@ -2363,7 +2363,16 @@ static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
ena_tx_ctx.num_bufs = tx_info->num_of_bufs;
- /* Write data to device */
+ if (ena_com_is_doorbell_needed(tx_ring->ena_com_io_sq,
+ &ena_tx_ctx)) {
+ RTE_LOG(DEBUG, PMD, "llq tx max burst size of queue %d"
+ " achieved, writing doorbell to send burst\n",
+ tx_ring->id);
+ rte_wmb();
+ ena_com_write_sq_doorbell(tx_ring->ena_com_io_sq);
+ }
+
+ /* prepare the packet's descriptors to dma engine */
rc = ena_com_prepare_tx(tx_ring->ena_com_io_sq,
&ena_tx_ctx, &nb_hw_desc);
if (unlikely(rc))
--
2.14.1
next prev parent reply other threads:[~2018-12-14 13:19 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-14 13:18 [dpdk-dev] [PATCH 00/20] net/ena: ENAv2 release Michal Krawczyk
2018-12-14 13:18 ` [dpdk-dev] [PATCH 01/20] net/ena: update ena_com for the ENAv2 Michal Krawczyk
2018-12-14 13:18 ` [dpdk-dev] [PATCH 02/20] net/ena: pass number of CPUs to the host info structure Michal Krawczyk
2018-12-14 13:18 ` [dpdk-dev] [PATCH 03/20] net/ena: add reset reason in rx error Michal Krawczyk
2018-12-14 13:18 ` [dpdk-dev] [PATCH 04/20] net/ena: add hw queues depth setup Michal Krawczyk
2018-12-14 13:18 ` [dpdk-dev] [PATCH 05/20] net/ena: skip packet with wrong req_id Michal Krawczyk
2018-12-14 13:18 ` [dpdk-dev] [PATCH 06/20] net/ena: add LLQv2 support Michal Krawczyk
2018-12-14 13:18 ` [dpdk-dev] [PATCH 07/20] net/ena: increase maximum Rx ring size Michal Krawczyk
2018-12-14 13:18 ` Michal Krawczyk [this message]
2018-12-14 13:18 ` [dpdk-dev] [PATCH 09/20] net/ena: destroy queues if start failed Michal Krawczyk
2018-12-14 13:18 ` [dpdk-dev] [PATCH 10/20] net/ena: reset should not reconfigure queues Michal Krawczyk
2018-12-14 13:18 ` [dpdk-dev] [PATCH 11/20] net/ena: adjust new line in log messages Michal Krawczyk
2018-12-14 13:18 ` [dpdk-dev] [PATCH 12/20] net/ena: add supported RSS offloads types Michal Krawczyk
2018-12-14 13:18 ` [dpdk-dev] [PATCH 13/20] net/ena: fix invalid reference to variable in union Michal Krawczyk
2018-12-14 13:18 ` [dpdk-dev] [PATCH 14/20] net/ena: fix cleanup for out of order packets Michal Krawczyk
2018-12-14 13:18 ` [dpdk-dev] [PATCH 15/20] net/ena: add per-queue software counters stats Michal Krawczyk
2018-12-14 13:18 ` [dpdk-dev] [PATCH 16/20] net/ena: expose ENA-specific statistics in extended stats Michal Krawczyk
2018-12-14 13:18 ` [dpdk-dev] [PATCH 17/20] net/ena: new way of getting rx drops Michal Krawczyk
2018-12-14 13:18 ` [dpdk-dev] [PATCH 18/20] net/ena: update completion queue after cleanup Michal Krawczyk
2018-12-14 13:18 ` [dpdk-dev] [PATCH 19/20] docs: update ENA PMD documentation and features Michal Krawczyk
2018-12-14 13:18 ` [dpdk-dev] [PATCH 20/20] net/ena: release of the ENAv2 driver (v2.0.0) Michal Krawczyk
2018-12-17 11:03 ` [dpdk-dev] [PATCH v2 14/20] net/ena: fix cleanup for out of order packets Michal Krawczyk
2018-12-17 11:06 ` [dpdk-dev] [PATCH v3 " Michal Krawczyk
2018-12-18 17:18 ` [dpdk-dev] [PATCH 00/20] net/ena: ENAv2 release Ferruh Yigit
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