From: santosh <santosh.shukla@caviumnetworks.com>
To: Olivier MATZ <olivier.matz@6wind.com>,
Hemant Agrawal <hemant.agrawal@nxp.com>
Cc: dev@dpdk.org, thomas@monjalon.net, jerin.jacob@caviumnetworks.com
Subject: Re: [dpdk-dev] [PATCH v3 2/2] ethdev: allow pmd to advertise pool handle
Date: Mon, 11 Sep 2017 18:10:36 +0530 [thread overview]
Message-ID: <d3eaf611-47ad-10be-5df7-587cf1cdf106@caviumnetworks.com> (raw)
In-Reply-To: <20170911093333.7tt3zdzdam3tshra@neon>
Hi Olivier,
On Monday 11 September 2017 03:03 PM, Olivier MATZ wrote:
> On Thu, Sep 07, 2017 at 04:38:39PM +0530, Hemant Agrawal wrote:
>> On 9/7/2017 3:41 PM, santosh wrote:
>>> Sorry for the font, resending proposed API:
>>>
>>> /**
>>> * Get list of supported pools for a port
>>> * @param port_id [in]
>>> * Pointer to port identifier of the device.
>>> * @param pools [out]
>>> * Pointer to the list of supported pools for that port.
>>> * Returns with array of pool ops name handler of size
>>> * RTE_MEMPOOL_OPS_NAMESIZE.
>>> * @return
>>> * >=0: Success; PMD has updated supported pool list.
>>> * <0: Failure;
>>> */
>>>
>>> int rte_eth_dev_pools_ops_supported(uint8_t port_id, char **pools)
>>>
>>> Hemant, Olivier: Does above api make sense? Pl. confirm. Thanks.
>>>
>> looks ok to me.
> I think that returning a list is harder to use in an application, instead of an
> api that just returns an int (priority):
>
> int rte_eth_dev_pool_ops_supported(uint8_t port_id, const char *pool)
>
> The possible returned values are:
> ENOTSUP: mempool ops not supported
> < 0: any other error
> 0: best mempool ops choice for this pmd
> 1: this mempool ops are supported
>
> Let's take an example. Our application wants to select ops that
> will match all pmds. The pseudo code would be like this:
>
> best_score = -1
> best_ops = NULL
> for ops in mempool_ops:
> score = 0
> for p in ports:
> ret = rte_eth_dev_pools_ops_supported(p, ops.name)
> if ret < 0:
> score = -1
> break
> score += ret
> if score == -1:
> continue
> if best_score == -1 || score < best_score:
> best_score = score
> best_ops = ops
> if best_score == -1:
> print "no matching mempool ops"
> else:
> print "selected ops: %s", best_ops.name
>
>
> You can do the exercise with the API you are proposing, but I think
> it would be harder.
>
> Olivier
Proposed model looks okay and I'll implement _pool_ops_supported() api.
But I cant promise the testpmd related changes with this series,
Since rc1 is closing so let the api go in -rc1 release and testpmd changes will
follow then. is it ok with you?
Thanks.
next prev parent reply other threads:[~2017-09-11 12:40 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-01 8:05 [dpdk-dev] [PATCH 0/2] Allow application set mempool handle Santosh Shukla
2017-06-01 8:05 ` [dpdk-dev] [PATCH 1/2] eal: Introducing option to " Santosh Shukla
2017-06-30 14:12 ` Olivier Matz
2017-07-04 12:33 ` santosh
2017-06-01 8:05 ` [dpdk-dev] [PATCH 2/2] ether/ethdev: Allow pmd to advertise preferred pool capability Santosh Shukla
2017-06-30 14:13 ` Olivier Matz
2017-07-04 12:39 ` santosh
2017-07-04 13:07 ` Olivier Matz
2017-07-04 14:12 ` Jerin Jacob
2017-06-19 11:52 ` [dpdk-dev] [PATCH 0/2] Allow application set mempool handle Hemant Agrawal
2017-06-19 13:01 ` Jerin Jacob
2017-06-20 10:37 ` Hemant Agrawal
2017-06-20 14:04 ` Jerin Jacob
2017-06-30 14:12 ` Olivier Matz
2017-07-04 12:25 ` santosh
2017-07-04 15:59 ` Olivier Matz
2017-07-05 7:48 ` santosh
2017-07-20 7:06 ` [dpdk-dev] [PATCH v2 0/2] Dynamically configure " Santosh Shukla
2017-07-20 7:06 ` [dpdk-dev] [PATCH v2 1/2] eal: allow user to override default pool handle Santosh Shukla
2017-08-15 8:07 ` [dpdk-dev] [PATCH v3 0/2] Dynamically configure mempool handle Santosh Shukla
2017-08-15 8:07 ` [dpdk-dev] [PATCH v3 1/2] eal: allow user to override default pool handle Santosh Shukla
2017-09-04 11:46 ` Olivier MATZ
2017-09-07 9:25 ` Hemant Agrawal
2017-08-15 8:07 ` [dpdk-dev] [PATCH v3 2/2] ethdev: allow pmd to advertise " Santosh Shukla
2017-09-04 12:11 ` Olivier MATZ
2017-09-04 13:14 ` santosh
2017-09-07 9:21 ` Hemant Agrawal
2017-09-07 10:06 ` santosh
2017-09-07 10:11 ` santosh
2017-09-07 11:08 ` Hemant Agrawal
2017-09-11 9:33 ` Olivier MATZ
2017-09-11 12:40 ` santosh [this message]
2017-09-11 13:00 ` Olivier MATZ
2017-09-04 9:41 ` [dpdk-dev] [PATCH v3 0/2] Dynamically configure mempool handle Sergio Gonzalez Monroy
2017-09-04 13:20 ` santosh
2017-09-04 13:34 ` Olivier MATZ
2017-09-04 14:24 ` Sergio Gonzalez Monroy
2017-09-05 7:47 ` Olivier MATZ
2017-09-05 8:11 ` Jerin Jacob
2017-09-11 15:18 ` [dpdk-dev] [PATCH v4 " Santosh Shukla
2017-09-11 15:18 ` [dpdk-dev] [PATCH v4 1/2] eal: allow user to override default pool handle Santosh Shukla
2017-09-25 7:28 ` Olivier MATZ
2017-09-25 21:23 ` santosh
2017-09-11 15:18 ` [dpdk-dev] [PATCH v4 2/2] ethdev: get the supported pools for a port Santosh Shukla
2017-09-25 7:37 ` Olivier MATZ
2017-09-25 21:52 ` santosh
2017-09-29 5:00 ` santosh
2017-09-29 8:32 ` Olivier MATZ
2017-09-29 10:16 ` santosh
2017-09-29 11:21 ` santosh
2017-09-29 11:23 ` Olivier MATZ
2017-09-29 11:31 ` santosh
2017-09-13 10:00 ` [dpdk-dev] [PATCH v4 0/2] Dynamically configure mempool handle santosh
2017-09-19 8:28 ` santosh
2017-09-25 7:24 ` Olivier MATZ
2017-09-25 21:58 ` santosh
2017-10-01 9:14 ` [dpdk-dev] [PATCH v5 " Santosh Shukla
2017-10-01 9:14 ` [dpdk-dev] [PATCH v5 1/2] eal: allow user to override default pool handle Santosh Shukla
2017-10-02 14:29 ` Olivier MATZ
2017-10-06 0:29 ` Thomas Monjalon
2017-10-06 3:31 ` santosh
2017-10-06 8:39 ` Thomas Monjalon
2017-10-06 7:45 ` [dpdk-dev] [PATCH v6 0/2] Dynamically configure mempool handle Santosh Shukla
2017-10-06 7:45 ` [dpdk-dev] [PATCH v6 1/2] eal: allow user to override default pool handle Santosh Shukla
2017-10-06 7:45 ` [dpdk-dev] [PATCH v6 2/2] ethdev: get the supported pool for a port Santosh Shukla
2017-10-06 18:58 ` [dpdk-dev] [PATCH v6 0/2] Dynamically configure mempool handle Thomas Monjalon
2017-10-01 9:14 ` [dpdk-dev] [PATCH v5 2/2] ethdev: get the supported pool for a port Santosh Shukla
2017-10-02 14:31 ` Olivier MATZ
2017-10-06 0:30 ` Thomas Monjalon
2017-10-06 3:32 ` santosh
2017-10-02 8:37 ` [dpdk-dev] [PATCH v5 0/2] Dynamically configure mempool handle santosh
2017-07-20 7:06 ` [dpdk-dev] [PATCH v2 2/2] ethdev: allow pmd to advertise pool handle Santosh Shukla
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