From: Jakub Kicinski <kuba@kernel.org>
To: Jijie Shao <shaojijie@huawei.com>
Cc: <davem@davemloft.net>, <edumazet@google.com>, <pabeni@redhat.com>,
<andrew+netdev@lunn.ch>, <horms@kernel.org>,
<shenjian15@huawei.com>, <liuyonglong@huawei.com>,
<chenhao418@huawei.com>, <huangdonghua3@h-partners.com>,
<yangshuaisong@h-partners.com>, <shiyongbang@huawei.com>,
<netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH net] net: hibmcge: fix incorrect packets in the RX path issue
Date: Thu, 14 May 2026 17:16:21 -0700 [thread overview]
Message-ID: <20260514171621.02b2ffb1@kernel.org> (raw)
In-Reply-To: <20260512123456.3786635-1-shaojijie@huawei.com>
On Tue, 12 May 2026 20:34:56 +0800 Jijie Shao wrote:
> Therefore, this patch disables the Relaxed Ordering to ensure the
> strict order of packets and descriptors.
>
> Additionally, during the process of analyzing the issue,
> it was discovered that the position of dma_rmb() was incorrect.
> It should first execute dma_sync_single_for_cpu(), and then dma_rmb().
> This patch has also made the corresponding modifications.
Should be a separate patch.
> Fixes: f72e25594061 ("net: hibmcge: Implement rx_poll function to receive packets")
> Signed-off-by: Jijie Shao <shaojijie@huawei.com>
> ---
> drivers/net/ethernet/hisilicon/hibmcge/hbg_main.c | 4 +++-
> drivers/net/ethernet/hisilicon/hibmcge/hbg_txrx.c | 6 +++---
> 2 files changed, 6 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_main.c b/drivers/net/ethernet/hisilicon/hibmcge/hbg_main.c
> index 068da2fd1fea..5b91b596349c 100644
> --- a/drivers/net/ethernet/hisilicon/hibmcge/hbg_main.c
> +++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_main.c
> @@ -420,6 +420,8 @@ static int hbg_pci_init(struct pci_dev *pdev)
> return -ENOMEM;
>
> pci_set_master(pdev);
> + pcie_capability_clear_word(pdev, PCI_EXP_DEVCTL,
> + PCI_EXP_DEVCTL_RELAX_EN);
> return 0;
> }
>
> @@ -525,4 +527,4 @@ module_exit(hbg_module_exit);
> MODULE_LICENSE("GPL");
> MODULE_AUTHOR("Huawei Tech. Co., Ltd.");
> MODULE_DESCRIPTION("hibmcge driver");
> -MODULE_VERSION("1.0");
> +MODULE_VERSION("2.0");
Please don't change MODULE_VERSIONs they are meaningless for in-tree
modules.
--
pw-bot: cr
next prev parent reply other threads:[~2026-05-15 0:16 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-12 12:34 [PATCH net] net: hibmcge: fix incorrect packets in the RX path issue Jijie Shao
2026-05-15 0:16 ` Jakub Kicinski [this message]
2026-05-15 1:45 ` Jijie Shao
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