From: "Eads, Gage" <gage.eads@intel.com>
To: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>,
"jerin.jacob@caviumnetworks.com" <jerin.jacob@caviumnetworks.com>,
"Richardson, Bruce" <bruce.richardson@intel.com>,
"Van Haaren, Harry" <harry.van.haaren@intel.com>,
"hemant.agrawal@nxp.com" <hemant.agrawal@nxp.com>,
"nipun.gupta@nxp.com" <nipun.gupta@nxp.com>,
"Rao, Nikhil" <nikhil.rao@intel.com>,
"santosh.shukla@caviumnetworks.com"
<santosh.shukla@caviumnetworks.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v2] eventdev: use links map to unlink queues
Date: Tue, 12 Dec 2017 16:08:12 +0000 [thread overview]
Message-ID: <9184057F7FC11744A2107296B6B8EB1E2BB16F75@FMSMSX108.amr.corp.intel.com> (raw)
In-Reply-To: <20171212093331.20216-1-pbhagavatula@caviumnetworks.com>
> -----Original Message-----
> From: Pavan Nikhilesh [mailto:pbhagavatula@caviumnetworks.com]
> Sent: Tuesday, December 12, 2017 3:34 AM
> To: jerin.jacob@caviumnetworks.com; Richardson, Bruce
> <bruce.richardson@intel.com>; Van Haaren, Harry
> <harry.van.haaren@intel.com>; Eads, Gage <gage.eads@intel.com>;
> hemant.agrawal@nxp.com; nipun.gupta@nxp.com; Rao, Nikhil
> <nikhil.rao@intel.com>; santosh.shukla@caviumnetworks.com
> Cc: dev@dpdk.org; Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
> Subject: [dpdk-dev] [PATCH v2] eventdev: use links map to unlink queues
>
> The octeontx event device doesn't store the queues to port mapping as a result
> it cannot return the exact number of queues unlinked from a port when
> application wants to unlink all the queues mapped (supplies queues param as
> NULL).
>
> Using links_map we can determine the exact queues mapped to a specific port
> and unlink them.
>
> Signed-off-by: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
> ---
> lib/librte_eventdev/rte_eventdev.c | 33 ++++++++++++++++++++++++++-------
> 1 file changed, 26 insertions(+), 7 deletions(-)
>
> diff --git a/lib/librte_eventdev/rte_eventdev.c
> b/lib/librte_eventdev/rte_eventdev.c
> index e0c2a78..b43ffbf 100644
> --- a/lib/librte_eventdev/rte_eventdev.c
> +++ b/lib/librte_eventdev/rte_eventdev.c
> @@ -888,7 +888,8 @@ rte_event_port_unlink(uint8_t dev_id, uint8_t port_id, {
> struct rte_eventdev *dev;
> uint8_t all_queues[RTE_EVENT_MAX_QUEUES_PER_DEV];
> - int i, diag;
> + uint8_t linked_queues[RTE_EVENT_MAX_QUEUES_PER_DEV];
> + int i, diag, j;
> uint16_t *links_map;
>
> RTE_EVENTDEV_VALID_DEVID_OR_ERRNO_RET(dev_id, -EINVAL, 0);
> @@ -906,13 +907,34 @@ rte_event_port_unlink(uint8_t dev_id, uint8_t
> port_id,
> return 0;
> }
>
> + links_map = dev->data->links_map;
> + /* Point links_map to this port specific area */
> + links_map += (port_id * RTE_EVENT_MAX_QUEUES_PER_DEV);
> +
> if (queues == NULL) {
> - for (i = 0; i < dev->data->nb_queues; i++)
> - all_queues[i] = i;
> + j = 0;
> + for (i = 0; i < dev->data->nb_queues; i++) {
> + if (links_map[i] !=
> +
> EVENT_QUEUE_SERVICE_PRIORITY_INVALID) {
> + all_queues[j] = i;
> + j++;
> + }
> + }
> queues = all_queues;
> - nb_unlinks = dev->data->nb_queues;
> + } else {
> + j = 0;
> + for (i = 0; i < nb_unlinks; i++) {
> + if (links_map[queues[i]] ==
> +
> EVENT_QUEUE_SERVICE_PRIORITY_INVALID)
> + break;
> +
> + linked_queues[j] = queues[i];
> + j++;
> + }
> + queues = linked_queues;
> }
>
Looks good. If you want, you can simplify the else case like so:
+ } else {
+ for (j = 0; j < nb_unlinks; j++)
+ if (links_map[queues[j]] ==
+ EVENT_QUEUE_SERVICE_PRIORITY_INVALID)
+ break;
+ }
Up to you. Either way:
Acked-by: Gage Eads <gage.eads@intel.com>
next prev parent reply other threads:[~2017-12-12 16:08 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-11 15:05 [dpdk-dev] [PATCH] eventdev: use links_map " Pavan Nikhilesh
2017-12-11 17:24 ` Eads, Gage
2017-12-12 7:23 ` Pavan Nikhilesh Bhagavatula
2017-12-12 9:33 ` [dpdk-dev] [PATCH v2] eventdev: use links map " Pavan Nikhilesh
2017-12-12 16:08 ` Eads, Gage [this message]
2017-12-12 17:22 ` Pavan Nikhilesh Bhagavatula
2017-12-12 18:58 ` [dpdk-dev] [PATCH v3] " Pavan Nikhilesh
2017-12-16 9:16 ` Jerin Jacob
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=9184057F7FC11744A2107296B6B8EB1E2BB16F75@FMSMSX108.amr.corp.intel.com \
--to=gage.eads@intel.com \
--cc=bruce.richardson@intel.com \
--cc=dev@dpdk.org \
--cc=harry.van.haaren@intel.com \
--cc=hemant.agrawal@nxp.com \
--cc=jerin.jacob@caviumnetworks.com \
--cc=nikhil.rao@intel.com \
--cc=nipun.gupta@nxp.com \
--cc=pbhagavatula@caviumnetworks.com \
--cc=santosh.shukla@caviumnetworks.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).