From: wangyunjian <wangyunjian@huawei.com>
To: "dev@dpdk.org" <dev@dpdk.org>
Cc: caihe <caihe@huawei.com>
Subject: Re: [dpdk-dev] net/i40e: fix intr callback unregister by adding retry
Date: Tue, 13 Mar 2018 06:59:18 +0000 [thread overview]
Message-ID: <34EFBCA9F01B0748BEB6B629CE643AE60C747C37@dggemm513-mbs.china.huawei.com> (raw)
In-Reply-To: <1520664643-13808-1-git-send-email-wangyunjian@huawei.com>
> -----Original Message-----
> From: wangyunjian
> Sent: Saturday, March 10, 2018 2:51 PM
> To: dev@dpdk.org
> Cc: caihe <caihe@huawei.com>; wangyunjian <wangyunjian@huawei.com>
> Subject: [dpdk-dev] net/i40e: fix intr callback unregister by adding retry
>
> From: Yunjian Wang <wangyunjian@huawei.com>
>
> The nic's interrupt source has some active callbacks, when the port hotplug.
> Add a retry to give more port's a chance to uninit before returning an error.
>
> Fixes: d42aaf30008b ("i40e: support port hotplug")
>
> Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
> ---
> drivers/net/i40e/i40e_ethdev.c | 16 ++++++++++++++--
> 1 file changed, 14 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
> index 508b417..a73d4df 100644
> --- a/drivers/net/i40e/i40e_ethdev.c
> +++ b/drivers/net/i40e/i40e_ethdev.c
> @@ -1533,6 +1533,7 @@ void i40e_flex_payload_reg_set_default(struct
> i40e_hw *hw)
> struct rte_flow *p_flow;
> int ret;
> uint8_t aq_fail = 0;
> + int retries = 0;
>
> PMD_INIT_FUNC_TRACE();
>
> @@ -1575,8 +1576,19 @@ void i40e_flex_payload_reg_set_default(struct
> i40e_hw *hw)
> rte_intr_disable(intr_handle);
>
> /* register callback func to eal lib */
> - rte_intr_callback_unregister(intr_handle,
> - i40e_dev_interrupt_handler, dev);
> + do {
> + ret = rte_intr_callback_unregister(intr_handle,
> + i40e_dev_interrupt_handler, dev);
> + if (!ret) {
This check is wrong. I will send the v2 later.
> + break;
> + } else if (ret != -EAGAIN) {
> + PMD_INIT_LOG(ERR,
> + "intr callback unregister failed: %d",
> + ret);
> + return ret;
> + }
> + i40e_msec_delay(100);
> + } while (retries++ < 5);
>
> i40e_rm_ethtype_filter_list(pf);
> i40e_rm_tunnel_filter_list(pf);
> --
> 1.8.3.1
>
prev parent reply other threads:[~2018-03-13 6:59 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-10 6:50 wangyunjian
2018-03-10 7:31 ` wangyunjian
2018-03-13 6:59 ` wangyunjian [this message]
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