From: Andrew Rybchenko <arybchenko@solarflare.com>
To: "Min Hu (Connor)" <humin29@huawei.com>, <dev@dpdk.org>
Cc: <konstantin.ananyev@intel.com>, <thomas@monjalon.net>,
<ferruh.yigit@intel.com>, <linuxarm@huawei.com>
Subject: Re: [dpdk-dev] [PATCH V14 1/3] ethdev: introduce FEC API
Date: Mon, 28 Sep 2020 15:48:37 +0300 [thread overview]
Message-ID: <aa745bd1-a564-fa8c-c77b-2d99c97690aa@solarflare.com> (raw)
In-Reply-To: <1601291286-13742-2-git-send-email-humin29@huawei.com>
On 9/28/20 2:08 PM, Min Hu (Connor) wrote:
> This patch adds Forward error correction(FEC) support for ethdev.
> Introduce APIs which support query and config FEC information in
> hardware.
>
> Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
> Reviewed-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
> Reviewed-by: Chengwen Feng <fengchengwen@huawei.com>
> Reviewed-by: Chengchang Tang <tangchengchang@huawei.com>
> Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>
[snip]
> diff --git a/lib/librte_ethdev/rte_ethdev.c b/lib/librte_ethdev/rte_ethdev.c
> index dfe5c1b..996d230 100644
> --- a/lib/librte_ethdev/rte_ethdev.c
> +++ b/lib/librte_ethdev/rte_ethdev.c
> @@ -3679,6 +3679,50 @@ rte_eth_led_off(uint16_t port_id)
> return eth_err(port_id, (*dev->dev_ops->dev_led_off)(dev));
> }
>
> +int
> +rte_eth_fec_get_capability(uint16_t port_id,
> + struct rte_eth_fec_capa *speed_fec_capa,
> + unsigned int num)
> +{
> + struct rte_eth_dev *dev;
> + int ret;
> +
> + if (speed_fec_capa == NULL && num > 0)
> + return -EINVAL;
> +
> + RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
> + dev = &rte_eth_devices[port_id];
> + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->fec_get_capability, -ENOTSUP);
> + ret = (*dev->dev_ops->fec_get_capability)(dev, speed_fec_capa, num);
> +
> + return ret;
> +}
> +
> +int
> +rte_eth_fec_get(uint16_t port_id, uint32_t *fec_capa)
> +{
> + struct rte_eth_dev *dev;
> +
> + if (fec_capa == NULL)
> + return -EINVAL;
> +
> + RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
> + dev = &rte_eth_devices[port_id];
> + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->fec_get, -ENOTSUP);
> + return eth_err(port_id, (*dev->dev_ops->fec_get)(dev, fec_capa));
> +}
> +
> +int
> +rte_eth_fec_set(uint16_t port_id, uint32_t mode)
mode -> fec_capa, since it is not a single mode
> +{
> + struct rte_eth_dev *dev;
> +
> + RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
> + dev = &rte_eth_devices[port_id];
> + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->fec_set, -ENOTSUP);
> + return eth_err(port_id, (*dev->dev_ops->fec_set)(dev, mode));
> +}
> +
> /*
> * Returns index into MAC address array of addr. Use 00:00:00:00:00:00 to find
> * an empty spot.
> diff --git a/lib/librte_ethdev/rte_ethdev.h b/lib/librte_ethdev/rte_ethdev.h
> index 645a186..50c5280 100644
> --- a/lib/librte_ethdev/rte_ethdev.h
> +++ b/lib/librte_ethdev/rte_ethdev.h
[snip]
> @@ -3397,6 +3420,85 @@ int rte_eth_led_on(uint16_t port_id);
> int rte_eth_led_off(uint16_t port_id);
>
> /**
> + * @warning
> + * @b EXPERIMENTAL: this API may change, or be removed, without prior notice
> + *
> + * Get Forward Error Correction(FEC) capability.
> + *
> + * @param port_id
> + * The port identifier of the Ethernet device.
> + * @param speed_fec_capa
> + * speed_fec_capa is out only with per-speed capabilities.
> + * If set to NULL, the function returns the required number
> + * of required array entries.
> + * @param num
> + * a number of elements in an speed_fec_capa array.
> + *
> + * @return
> + * - A positive value lower or equal to num: success. The return value
positive -> non-negative
since 0 is OK if FEC is not applicable/supported
> + * is the number of entries filled in the fec capa array.
> + * - A positive value higher than num: error, the given fec capa array
same, positive -> non-negative
> + * is too small. The return value corresponds to the num that should
> + * be given to succeed. The entries in fec capa array are not valid and
> + * shall not be used by the caller.
OK for me, possible option is to fill in just provided entries
(up to num)
> + * - (-ENOTSUP) if underlying hardware OR driver doesn't support.
> + * that operation.
> + * - (-EIO) if device is removed.
> + * - (-ENODEV) if *port_id* invalid.
> + * - (-EINVAL) if *num* or *speed_fec_capa* invalid
> + */
> +__rte_experimental
> +int rte_eth_fec_get_capability(uint16_t port_id,
> + struct rte_eth_fec_capa *speed_fec_capa,
> + unsigned int num);
> +
> +/**
> + * @warning
> + * @b EXPERIMENTAL: this API may change, or be removed, without prior notice
> + *
> + * Get current Forward Error Correction(FEC) mode.
> + * If link is down and AUTO is enabled, AUTO is returned, otherwise,
> + * configured FEC mode is returned.
> + * If link is up, current FEC mode is returned.
> + *
> + * @param port_id
> + * The port identifier of the Ethernet device.
> + * @param fec_capa
> + * A bitmask of enabled FEC modes. If AUTO bit is set, other
> + * bits specify FEC modes which may be negotiated. If AUTO
> + * bit is clear, specify FEC modes to be used (only one valid
> + * mode per speed may be set).
> + * @return
> + * - (0) if successful.
> + * - (-ENOTSUP) if underlying hardware OR driver doesn't support.
> + * that operation.
> + * - (-EIO) if device is removed.
> + * - (-ENODEV) if *port_id* invalid.
> + */
> +__rte_experimental
> +int rte_eth_fec_get(uint16_t port_id, uint32_t *fec_capa);
> +
> +/**
> + * @warning
> + * @b EXPERIMENTAL: this API may change, or be removed, without prior notice
> + *
> + * Set Forward Error Correction(FEC) mode.
> + *
> + * @param port_id
> + * The port identifier of the Ethernet device.
> + * @param mode
> + * The FEC mode.
mode -> fec_capa
with description from callback below
> + * @return
> + * - (0) if successful.
> + * - (-EINVAL) if the FEC mode is not valid.
> + * - (-ENOTSUP) if underlying hardware OR driver doesn't support.
> + * - (-EIO) if device is removed.
> + * - (-ENODEV) if *port_id* invalid.
> + */
> +__rte_experimental
> +int rte_eth_fec_set(uint16_t port_id, uint32_t mode);
> +
> +/**
> * Get current status of the Ethernet link flow control for Ethernet device
> *
> * @param port_id
> diff --git a/lib/librte_ethdev/rte_ethdev_driver.h b/lib/librte_ethdev/rte_ethdev_driver.h
> index 23cc1e0..a1f10d6 100644
> --- a/lib/librte_ethdev/rte_ethdev_driver.h
> +++ b/lib/librte_ethdev/rte_ethdev_driver.h
> @@ -575,6 +575,87 @@ typedef int (*eth_tx_hairpin_queue_setup_t)
> const struct rte_eth_hairpin_conf *hairpin_conf);
>
> /**
> + * @internal
> + * Get Forward Error Correction(FEC) capability.
> + *
> + * @param dev
> + * ethdev handle of port.
> + * @param speed_fec_capa
> + * speed_fec_capa is out only with per-speed capabilities.
> + * @param num
> + * a number of elements in an speed_fec_capa array.
> + *
> + * @return
> + * Negative errno value on error, positive value on success.
> + *
> + * @retval positive value
> + * A positive value lower or equal to num: success. The return value
same as above
> + * is the number of entries filled in the fec capa array.
> + * A positive value higher than num: error, the given fec capa array
same as above
> + * is too small. The return value corresponds to the num that should
> + * be given to succeed. The entries in the fec capa array are not valid
> + * and shall not be used by the caller.
> + * @retval -ENOTSUP
> + * Operation is not supported.
> + * @retval -EIO
> + * Device is removed.
> + * @retval -EINVAL
> + * *num* or *speed_fec_capa* invalid.
> + */
> +typedef int (*eth_fec_get_capability_t)(struct rte_eth_dev *dev,
> + struct rte_eth_fec_capa *speed_fec_capa, unsigned int num);
> +
> +/**
> + * @internal
> + * Get Forward Error Correction(FEC) mode.
> + *
> + * @param dev
> + * ethdev handle of port.
> + * @param fec_capa
> + * a bitmask of enabled FEC modes. If AUTO bit is set, other
> + * bits specify FEC modes which may be negotiated. If AUTO
> + * bit is clear, specify FEC modes to be used (only one valid
> + * mode per speed may be set).
> + *
> + * @return
> + * Negative errno value on error, 0 on success.
> + *
> + * @retval 0
> + * Success, get FEC success.
> + * @retval -ENOTSUP
> + * Operation is not supported.
> + * @retval -EIO
> + * Device is removed.
> + */
> +typedef int (*eth_fec_get_t)(struct rte_eth_dev *dev,
> + uint32_t *fec_capa);
> +
> +/**
> + * @internal
> + * Set Forward Error Correction(FEC) mode.
> + *
> + * @param dev
> + * ethdev handle of port.
> + * @param mode
mode -> fec_capa
> + * bitmask of allowed FEC modes. It must be only one
> + * if AUTO is disabled. If AUTO is enabled, other
> + * bits specify FEC modes which may be negotiated.
> + *
> + * @return
> + * Negative errno value on error, 0 on success.
> + *
> + * @retval 0
> + * Success, set FEC success.
> + * @retval -ENOTSUP
> + * Operation is not supported.
> + * @retval -EINVAL
> + * Unsupported FEC mode requested.
> + * @retval -EIO
> + * Device is removed.
> + */
> +typedef int (*eth_fec_set_t)(struct rte_eth_dev *dev, uint32_t mode);
> +
> +/**
> * @internal A structure containing the functions exported by an Ethernet driver.
> */
> struct eth_dev_ops {
> @@ -713,6 +794,13 @@ struct eth_dev_ops {
> /**< Set up device RX hairpin queue. */
> eth_tx_hairpin_queue_setup_t tx_hairpin_queue_setup;
> /**< Set up device TX hairpin queue. */
> +
> + eth_fec_get_capability_t fec_get_capability;
> + /**< Get Forward Error Correction(FEC) capability. */
> + eth_fec_get_t fec_get;
> + /**< Get Forward Error Correction(FEC) mode. */
> + eth_fec_set_t fec_set;
> + /**< Set Forward Error Correction(FEC) mode. */
> };
>
> /**
> diff --git a/lib/librte_ethdev/rte_ethdev_version.map b/lib/librte_ethdev/rte_ethdev_version.map
> index c95ef51..b9ace3a 100644
> --- a/lib/librte_ethdev/rte_ethdev_version.map
> +++ b/lib/librte_ethdev/rte_ethdev_version.map
> @@ -229,6 +229,9 @@ EXPERIMENTAL {
> # added in 20.11
> rte_eth_link_speed_to_str;
> rte_eth_link_to_str;
> + rte_eth_fec_get_capability;
> + rte_eth_fec_get;
> + rte_eth_fec_set;
> };
>
> INTERNAL {
>
next prev parent reply other threads:[~2020-09-28 12:48 UTC|newest]
Thread overview: 118+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-28 11:32 [dpdk-dev] [RFC] ethdev: add Forward Error Correction support Min Hu(Connor)
2020-08-30 12:43 ` Andrew Rybchenko
2020-09-08 3:05 ` [dpdk-dev] [PATCH 0/3] add FEC support Min Hu (Connor)
2020-09-08 3:05 ` [dpdk-dev] [PATCH 1/3] ethdev: introduce FEC API Min Hu (Connor)
2020-09-09 2:42 ` [dpdk-dev] [PATCH V2 0/3] add FEC support Min Hu (Connor)
2020-09-09 2:42 ` [dpdk-dev] [PATCH V2 1/3] ethdev: introduce FEC API Min Hu (Connor)
2020-09-09 2:43 ` [dpdk-dev] [PATCH V2 2/3] net/hns3: support FEC Min Hu (Connor)
2020-09-09 2:43 ` [dpdk-dev] [PATCH V2 3/3] app/testpmd: add FEC command Min Hu (Connor)
2020-09-08 3:05 ` [dpdk-dev] [PATCH 2/3] net/hns3: support FEC Min Hu (Connor)
2020-09-08 3:05 ` [dpdk-dev] [PATCH 3/3] app/testpmd: add FEC command Min Hu (Connor)
2020-09-10 7:24 ` [dpdk-dev] [PATCH V4 0/3] add FEC support Min Hu (Connor)
2020-09-10 7:24 ` [dpdk-dev] [PATCH V4 1/3] ethdev: introduce FEC API Min Hu (Connor)
2020-09-12 4:53 ` Ajit Khaparde
2020-09-16 14:10 ` Ananyev, Konstantin
2020-09-10 7:24 ` [dpdk-dev] [PATCH V4 2/3] net/hns3: support FEC Min Hu (Connor)
2020-09-10 7:24 ` [dpdk-dev] [PATCH V4 3/3] app/testpmd: add FEC command Min Hu (Connor)
2020-09-10 21:02 ` [dpdk-dev] [PATCH V4 0/3] add FEC support Ajit Khaparde
2020-09-11 8:39 ` humin (Connor)
2020-09-16 12:37 ` humin (Connor)
2020-09-17 8:23 ` [dpdk-dev] [V5 " Min Hu (Connor)
2020-09-17 8:23 ` [dpdk-dev] [V5 1/3] ethdev: introduce FEC API Min Hu (Connor)
2020-09-17 8:23 ` [dpdk-dev] [V5 2/3] net/hns3: support FEC Min Hu (Connor)
2020-09-17 8:23 ` [dpdk-dev] [V5 3/3] app/testpmd: add FEC command Min Hu (Connor)
2020-09-17 8:52 ` [dpdk-dev] [V5 0/3] add FEC support Min Hu (Connor)
2020-09-17 8:52 ` [dpdk-dev] [V5 1/3] ethdev: introduce FEC API Min Hu (Connor)
2020-09-17 9:58 ` Andrew Rybchenko
2020-09-18 9:28 ` Min Hu (Connor)
2020-09-19 8:42 ` Andrew Rybchenko
2020-09-19 12:06 ` Min Hu (Connor)
2020-09-17 12:49 ` Ananyev, Konstantin
2020-09-18 1:57 ` humin (Connor)
2020-09-18 10:46 ` Ananyev, Konstantin
2020-09-17 8:52 ` [dpdk-dev] [V5 2/3] net/hns3: support FEC Min Hu (Connor)
2020-09-17 8:52 ` [dpdk-dev] [V5 3/3] app/testpmd: add FEC command Min Hu (Connor)
2020-09-18 9:04 ` [dpdk-dev] [PATCH V6 0/3] add FEC support Min Hu (Connor)
2020-09-18 9:04 ` [dpdk-dev] [PATCH V6 1/3] ethdev: introduce FEC API Min Hu (Connor)
2020-09-18 9:04 ` [dpdk-dev] [PATCH V6 2/3] net/hns3: support FEC Min Hu (Connor)
2020-09-18 9:04 ` [dpdk-dev] [PATCH V6 3/3] app/testpmd: add FEC command Min Hu (Connor)
2020-09-18 11:48 ` [dpdk-dev] [PATCH V7 0/3] add FEC support Min Hu (Connor)
2020-09-18 11:48 ` [dpdk-dev] [PATCH V7 1/3] ethdev: introduce FEC API Min Hu (Connor)
2020-09-18 12:13 ` Ananyev, Konstantin
2020-09-18 18:10 ` Ajit Khaparde
2020-09-19 8:44 ` Andrew Rybchenko
2020-09-18 11:48 ` [dpdk-dev] [PATCH V7 2/3] net/hns3: support FEC Min Hu (Connor)
2020-09-18 11:48 ` [dpdk-dev] [PATCH V7 3/3] app/testpmd: add FEC command Min Hu (Connor)
2020-09-18 20:35 ` Ajit Khaparde
2020-09-21 2:59 ` [dpdk-dev] [PATCH V8 0/3] add FEC support Min Hu (Connor)
2020-09-21 2:59 ` [dpdk-dev] [PATCH V8 1/3] ethdev: introduce FEC API Min Hu (Connor)
2020-09-21 2:59 ` [dpdk-dev] [PATCH V8 2/3] net/hns3: support FEC Min Hu (Connor)
2020-09-21 2:59 ` [dpdk-dev] [PATCH V8 3/3] app/testpmd: add FEC command Min Hu (Connor)
2020-09-21 6:13 ` [dpdk-dev] [PATCH V9 0/3] add FEC support Min Hu (Connor)
2020-09-21 6:13 ` [dpdk-dev] [PATCH V9 1/3] ethdev: introduce FEC API Min Hu (Connor)
2020-09-21 13:39 ` Andrew Rybchenko
2020-09-22 4:58 ` Min Hu (Connor)
2020-09-22 8:02 ` Andrew Rybchenko
2020-09-22 11:06 ` Min Hu (Connor)
2020-09-22 12:18 ` Andrew Rybchenko
2020-09-24 11:07 ` Min Hu (Connor)
2020-09-21 6:13 ` [dpdk-dev] [PATCH V9 2/3] net/hns3: support FEC Min Hu (Connor)
2020-09-21 6:13 ` [dpdk-dev] [PATCH V9 3/3] app/testpmd: add FEC command Min Hu (Connor)
2020-09-22 7:26 ` [dpdk-dev] [PATCH V10 0/3] add FEC support Min Hu (Connor)
2020-09-22 7:26 ` [dpdk-dev] [PATCH V10 1/3] ethdev: introduce FEC API Min Hu (Connor)
2020-09-22 7:26 ` [dpdk-dev] [PATCH V10 2/3] net/hns3: support FEC Min Hu (Connor)
2020-09-22 7:26 ` [dpdk-dev] [PATCH V10 3/3] app/testpmd: add FEC command Min Hu (Connor)
2020-09-24 11:01 ` [dpdk-dev] [PATCH V11 0/4] add FEC support Min Hu (Connor)
2020-09-24 11:01 ` [dpdk-dev] [PATCH V11 1/4] ethdev: introduce FEC API Min Hu (Connor)
2020-09-24 11:01 ` [dpdk-dev] [PATCH V11 2/4] net/hns3: support FEC Min Hu (Connor)
2020-09-24 11:01 ` [dpdk-dev] [PATCH V11 3/4] app/testpmd: add FEC command Min Hu (Connor)
2020-09-24 11:01 ` [dpdk-dev] [PATCH V11 4/4] doc: add FEC API and PMD information Min Hu (Connor)
2020-09-24 13:05 ` [dpdk-dev] [PATCH V12 0/4] add FEC support Min Hu (Connor)
2020-09-24 13:05 ` [dpdk-dev] [PATCH V12 1/4] ethdev: introduce FEC API Min Hu (Connor)
2020-09-24 14:46 ` Andrew Rybchenko
2020-09-25 8:47 ` Min Hu (Connor)
2020-09-25 15:36 ` Ajit Khaparde
2020-09-25 16:12 ` Stephen Hemminger
2020-09-25 16:38 ` Ferruh Yigit
2020-09-24 13:05 ` [dpdk-dev] [PATCH V12 2/4] net/hns3: support FEC Min Hu (Connor)
2020-09-24 13:05 ` [dpdk-dev] [PATCH V12 3/4] app/testpmd: add FEC command Min Hu (Connor)
2020-09-24 13:05 ` [dpdk-dev] [PATCH V12 4/4] doc: add FEC API and PMD information Min Hu (Connor)
2020-09-24 13:52 ` Andrew Rybchenko
2020-09-25 8:39 ` [dpdk-dev] [PATCH V13 0/3] add FEC support Min Hu (Connor)
2020-09-25 8:39 ` [dpdk-dev] [PATCH V13 1/3] ethdev: introduce FEC API Min Hu (Connor)
2020-09-28 7:35 ` Andrew Rybchenko
2020-09-28 11:13 ` Min Hu (Connor)
2020-09-25 8:39 ` [dpdk-dev] [PATCH V13 2/3] net/hns3: support FEC Min Hu (Connor)
2020-09-25 8:39 ` [dpdk-dev] [PATCH V13 3/3] app/testpmd: add FEC command Min Hu (Connor)
2020-09-27 7:08 ` [dpdk-dev] [PATCH V13 0/3] add FEC support Min Hu (Connor)
2020-09-28 10:27 ` Ferruh Yigit
2020-09-28 11:11 ` Min Hu (Connor)
2020-09-28 11:08 ` [dpdk-dev] [PATCH V14 " Min Hu (Connor)
2020-09-28 11:08 ` [dpdk-dev] [PATCH V14 1/3] ethdev: introduce FEC API Min Hu (Connor)
2020-09-28 12:48 ` Andrew Rybchenko [this message]
2020-09-29 2:09 ` Min Hu (Connor)
2020-09-28 11:08 ` [dpdk-dev] [PATCH V14 2/3] net/hns3: support FEC Min Hu (Connor)
2020-09-28 11:08 ` [dpdk-dev] [PATCH V14 3/3] app/testpmd: add FEC command Min Hu (Connor)
2020-09-29 1:03 ` [dpdk-dev] [PATCH V15 0/3] add FEC support Min Hu (Connor)
2020-09-29 1:03 ` [dpdk-dev] [PATCH V15 1/3] ethdev: introduce FEC API Min Hu (Connor)
2020-09-29 4:18 ` Ajit Khaparde
2020-09-29 8:44 ` Min Hu (Connor)
2020-09-30 2:45 ` Min Hu (Connor)
2020-09-30 8:15 ` Thomas Monjalon
2020-09-30 9:45 ` Andrew Rybchenko
2020-09-29 1:03 ` [dpdk-dev] [PATCH V15 2/3] net/hns3: support FEC Min Hu (Connor)
2020-09-29 1:03 ` [dpdk-dev] [PATCH V15 3/3] app/testpmd: add FEC command Min Hu (Connor)
2020-09-30 16:52 ` Ferruh Yigit
2020-10-07 0:15 ` humin (Q)
2020-10-07 9:28 ` Ferruh Yigit
2020-10-07 23:38 ` humin (Q)
2020-10-08 10:06 ` Min Hu (Connor)
2020-10-08 10:02 ` [dpdk-dev] [PATCH V16 0/3] add FEC support Min Hu (Connor)
2020-10-08 10:02 ` [dpdk-dev] [PATCH V16 1/3] ethdev: introduce FEC API Min Hu (Connor)
2021-01-15 14:07 ` Ferruh Yigit
2021-01-16 2:03 ` Min Hu (Connor)
2020-10-08 10:02 ` [dpdk-dev] [PATCH V16 2/3] net/hns3: support FEC Min Hu (Connor)
2020-10-08 10:02 ` [dpdk-dev] [PATCH V16 3/3] app/testpmd: add FEC command Min Hu (Connor)
2020-10-08 15:57 ` Ferruh Yigit
2020-10-09 3:48 ` Min Hu (Connor)
2020-10-08 16:28 ` [dpdk-dev] [PATCH V16 0/3] add FEC support Ferruh Yigit
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