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From: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
To: Chengwen Feng <fengchengwen@huawei.com>,
	thomas@monjalon.net, ferruh.yigit@xilinx.com,
	ferruh.yigit@amd.com
Cc: dev@dpdk.org, kalesh-anakkur.purayil@broadcom.com,
	somnath.kotur@broadcom.com, ajit.khaparde@broadcom.com,
	mdr@ashroe.eu, Stephen Hemminger <stephen@networkplumber.org>
Subject: Re: [PATCH v11 1/5] ethdev: support get port error handling mode
Date: Mon, 10 Oct 2022 11:38:27 +0300	[thread overview]
Message-ID: <ed4ca3ab-1379-3b54-eef2-946b30f1ce07@oktetlabs.ru> (raw)
In-Reply-To: <20221009091009.38978-2-fengchengwen@huawei.com>

On 10/9/22 12:10, Chengwen Feng wrote:
> This patch support gets port's error handling mode by
> rte_eth_dev_info_get() API.

Just: "Add error handling mode to device info."

> 
> Currently, the defined modes include:
> 1) NONE: it means no error handling modes are supported by this port.
> 2) PASSIVE: passive error handling, after the PMD detect that a reset
> is required, the PMD reports RTE_ETH_EVENT_INTR_RESET event, and
> application invoke rte_eth_dev_reset() to recover the port.
> 
> Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>

With review notes applied (may be except usage of reserved
fields):
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>

> diff --git a/lib/ethdev/rte_ethdev.h b/lib/ethdev/rte_ethdev.h
> index e8d1e1c658..3443bf20e1 100644
> --- a/lib/ethdev/rte_ethdev.h
> +++ b/lib/ethdev/rte_ethdev.h
> @@ -1629,6 +1629,22 @@ enum rte_eth_representor_type {
>   	RTE_ETH_REPRESENTOR_PF,   /**< representor of Physical Function. */
>   };
>   
> +/**
> + * @warning
> + * @b EXPERIMENTAL: this enumeration may change without prior notice.
> + *
> + * Ethernet device error handling mode.
> + */
> +enum rte_eth_err_handle_mode {
> +	/** No error handling modes are supported. */
> +	RTE_ETH_ERROR_HANDLE_MODE_NONE,
> +	/** Passive error handling, after the PMD detect that a reset is
> +	 * required, the PMD reports @see RTE_ETH_EVENT_INTR_RESET event, and
> +	 * application invoke @see rte_eth_dev_reset to recover the port.
> +	 */
> +	RTE_ETH_ERROR_HANDLE_MODE_PASSIVE,
> +};
> +
>   /**
>    * A structure used to retrieve the contextual information of
>    * an Ethernet device, such as the controlling driver of the
> @@ -1689,8 +1705,12 @@ struct rte_eth_dev_info {
>   	 * embedded managed interconnect/switch.
>   	 */
>   	struct rte_eth_switch_info switch_info;
> +	/** Supported error handling mode. @see enum rte_eth_err_handle_mode */
> +	uint8_t err_handle_mode;

IMHO, it must be
     enum rte_eth_err_handle_mode err_handle_mode;
Yes, it takes a bit more space, but it is a control path and
code clearness is more important here than few extra bytes.

>   
> -	uint64_t reserved_64s[2]; /**< Reserved for future fields */
> +	uint8_t reserved_8;       /**< Reserved for future fields  */
> +	uint16_t reserved_16s[3]; /**< Reserved for future fields  */
> +	uint64_t reserved_64;     /**< Reserved for future fields */

As far as I know it is done as per Stephen review notes, but
I'm not really sure why it is a right way in ABI breaking
release. I'd not touch it and just add a new field.

>   	void *reserved_ptrs[2];   /**< Reserved for future fields */
>   };
>   


  reply	other threads:[~2022-10-10  8:38 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20220128124831.427-1-kalesh-anakkur.purayil@broadcom.com>
2022-09-22  7:41 ` [PATCH v9 0/5] support " Chengwen Feng
2022-09-22  7:41   ` [PATCH v9 1/5] ethdev: support get port " Chengwen Feng
2022-10-03 17:35     ` Ferruh Yigit
2022-10-05  1:56       ` fengchengwen
2022-09-22  7:41   ` [PATCH v9 2/5] ethdev: support proactive " Chengwen Feng
2022-10-03 17:35     ` Ferruh Yigit
2022-09-22  7:41   ` [PATCH v9 3/5] app/testpmd: support error handling mode event Chengwen Feng
2022-09-22  7:41   ` [PATCH v9 4/5] net/hns3: support proactive error handling mode Chengwen Feng
2022-09-22  7:41   ` [PATCH v9 5/5] net/bnxt: " Chengwen Feng
2022-10-09  7:53 ` [PATCH v10 0/5] support " Chengwen Feng
2022-10-09  7:53   ` [PATCH v10 1/5] ethdev: support get port " Chengwen Feng
2022-10-09  7:53   ` [PATCH v10 2/5] ethdev: support proactive " Chengwen Feng
2022-10-09  7:53   ` [PATCH v10 3/5] app/testpmd: support error handling mode event Chengwen Feng
2022-10-09  7:53   ` [PATCH v10 4/5] net/hns3: support proactive error handling mode Chengwen Feng
2022-10-09  7:53   ` [PATCH v10 5/5] net/bnxt: " Chengwen Feng
2022-10-09  9:10 ` [PATCH v11 0/5] support " Chengwen Feng
2022-10-09  9:10   ` [PATCH v11 1/5] ethdev: support get port " Chengwen Feng
2022-10-10  8:38     ` Andrew Rybchenko [this message]
2022-10-10  8:44     ` Andrew Rybchenko
2022-10-09  9:10   ` [PATCH v11 2/5] ethdev: support proactive " Chengwen Feng
2022-10-10  8:47     ` Andrew Rybchenko
2022-10-11 14:48       ` fengchengwen
2022-10-09  9:10   ` [PATCH v11 3/5] app/testpmd: support error handling mode event Chengwen Feng
2022-10-09  9:10   ` [PATCH v11 4/5] net/hns3: support proactive error handling mode Chengwen Feng
2022-10-09 11:05     ` Dongdong Liu
2022-10-09  9:10   ` [PATCH v11 5/5] net/bnxt: " Chengwen Feng
2022-10-12  3:45 ` [PATCH v12 0/5] support " Chengwen Feng
2022-10-12  3:45   ` [PATCH v12 1/5] ethdev: add error handling mode to device info Chengwen Feng
2022-10-12  3:45   ` [PATCH v12 2/5] ethdev: support proactive error handling mode Chengwen Feng
2022-10-13  8:58     ` Andrew Rybchenko
2022-10-13 12:50       ` fengchengwen
2022-10-12  3:45   ` [PATCH v12 3/5] app/testpmd: support error handling mode event Chengwen Feng
2022-10-12  3:45   ` [PATCH v12 4/5] net/hns3: support proactive error handling mode Chengwen Feng
2022-10-12  3:45   ` [PATCH v12 5/5] net/bnxt: " Chengwen Feng
2022-10-13 12:42 ` [PATCH v13 0/5] support " Chengwen Feng
2022-10-13 12:42   ` [PATCH v13 1/5] ethdev: add error handling mode to device info Chengwen Feng
2022-10-13 12:42   ` [PATCH v13 2/5] ethdev: support proactive error handling mode Chengwen Feng
2022-10-13 12:42   ` [PATCH v13 3/5] app/testpmd: support error handling mode event Chengwen Feng
2022-10-13 12:42   ` [PATCH v13 4/5] net/hns3: support proactive error handling mode Chengwen Feng
2022-10-13 12:42   ` [PATCH v13 5/5] net/bnxt: " Chengwen Feng
2022-10-17  7:42   ` [PATCH v13 0/5] support " Andrew Rybchenko

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