From: Gavin Hu <gavin.hu@arm.com>
To: dev@dpdk.org
Cc: nd@arm.com, david.marchand@redhat.com, thomas@monjalon.net,
mk@semihalf.com, gtzalik@amazon.com, evgenys@amazon.com,
igorch@amazon.com, mw@semihalf.com, Honnappa.Nagarahalli@arm.com,
ruifeng.wang@arm.com, phil.yang@arm.com, joyce.kong@arm.com,
stable@dpdk.org
Subject: [dpdk-dev] [PATCH RFC v1 1/7] net/ena: remove duplicate barrier
Date: Fri, 13 Mar 2020 17:18:29 +0800 [thread overview]
Message-ID: <20200313091835.58039-2-gavin.hu@arm.com> (raw)
In-Reply-To: <20200313091835.58039-1-gavin.hu@arm.com>
As there is necessary barriers before calling the function everywhere,
then using the relaxed write function ENA_REG_WRITE32_RELAXED is ok.
Fixes: 99ecfbf845b3 ("ena: import communication layer")
Cc: stable@dpdk.org
Signed-off-by: Gavin Hu <gavin.hu@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
---
drivers/net/ena/base/ena_eth_com.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ena/base/ena_eth_com.h b/drivers/net/ena/base/ena_eth_com.h
index e37b642d4..e56c33a64 100644
--- a/drivers/net/ena/base/ena_eth_com.h
+++ b/drivers/net/ena/base/ena_eth_com.h
@@ -156,7 +156,7 @@ static inline int ena_com_write_sq_doorbell(struct ena_com_io_sq *io_sq)
ena_trc_dbg("write submission queue doorbell for queue: %d tail: %d\n",
io_sq->qid, tail);
- ENA_REG_WRITE32(io_sq->bus, tail, io_sq->db_addr);
+ ENA_REG_WRITE32_RELAXED(io_sq->bus, tail, io_sq->db_addr);
if (is_llq_max_tx_burst_exists(io_sq)) {
ena_trc_dbg("reset available entries in tx burst for queue %d to %d\n",
--
2.17.1
next prev parent reply other threads:[~2020-03-13 9:19 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-13 9:18 [dpdk-dev] [PATCH RFC v1 0/7] relax barriers for ENA PMD and small fixes Gavin Hu
2020-03-13 9:18 ` Gavin Hu [this message]
2020-03-13 9:18 ` [dpdk-dev] [PATCH RFC v1 2/7] net/ena: relax the barrier for doorbell ring Gavin Hu
2020-03-13 9:18 ` [dpdk-dev] [PATCH RFC v1 3/7] net/ena: relax the rmb for DMA Gavin Hu
2020-03-13 9:18 ` [dpdk-dev] [PATCH RFC v1 4/7] net/ena: relax barrier for completion queue update Gavin Hu
2020-03-13 9:18 ` [dpdk-dev] [PATCH RFC v1 5/7] net/ena: relax the barrier for bounce buffer Gavin Hu
2020-03-13 9:18 ` [dpdk-dev] [PATCH RFC v1 6/7] net/ena: use c11 atomic for statistics Gavin Hu
2020-03-13 9:18 ` [dpdk-dev] [PATCH RFC v1 7/7] net/ena: remove duplicate memset Gavin Hu
2020-03-16 9:34 ` [dpdk-dev] [PATCH RFC v1 0/7] relax barriers for ENA PMD and small fixes Chauskin, Igor
2020-03-17 7:58 ` Gavin Hu
2020-04-16 13:37 ` Chauskin, Igor
2020-04-21 7:45 ` Gavin Hu
2020-05-12 21:22 ` Honnappa Nagarahalli
2020-04-15 15:27 ` Ferruh Yigit
2020-04-15 15:59 ` Chauskin, Igor
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