* Re: [dpdk-dev] [PATCH] bus/vdev: fix wrong error log on secondary device scan
2018-08-27 12:27 [dpdk-dev] [PATCH] bus/vdev: fix wrong error log on secondary device scan Qi Zhang
@ 2018-08-27 16:16 ` Burakov, Anatoly
2018-09-03 8:49 ` Qi Zhang
2018-09-03 8:50 ` [dpdk-dev] [PATCH v2] " Qi Zhang
2 siblings, 0 replies; 6+ messages in thread
From: Burakov, Anatoly @ 2018-08-27 16:16 UTC (permalink / raw)
To: Qi Zhang, dev; +Cc: gage.eads, stable
On 27-Aug-18 1:27 PM, Qi Zhang wrote:
> When a secondary process handles VDEV_SCAN_ONE mp action, it is possible
> the device is already be inserted. This happens when we have multiple
> secondary processes which cause multiple broadcasts from primary during
> bus->scan. So we don't need to log any error for -EEXIST.
>
> Bugzilla ID: 84
> Fixes: cdb068f031c6 ("bus/vdev: scan by multi-process channel")
> Cc: stable@dpdk.org
>
> Reported-by: Eads Gage <gage.eads@intel.com>
> Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
> ---
> drivers/bus/vdev/vdev.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/bus/vdev/vdev.c b/drivers/bus/vdev/vdev.c
> index 6139dd551..af9526fe6 100644
> --- a/drivers/bus/vdev/vdev.c
> +++ b/drivers/bus/vdev/vdev.c
> @@ -346,6 +346,7 @@ vdev_action(const struct rte_mp_msg *mp_msg, const void *peer)
> const struct vdev_param *in = (const struct vdev_param *)mp_msg->param;
> const char *devname;
> int num;
> + int ret;
>
> strlcpy(mp_resp.name, VDEV_MP_KEY, sizeof(mp_resp.name));
> mp_resp.len_param = sizeof(*ou);
> @@ -380,7 +381,10 @@ vdev_action(const struct rte_mp_msg *mp_msg, const void *peer)
> break;
> case VDEV_SCAN_ONE:
> VDEV_LOG(INFO, "receive vdev, %s", in->name);
> - if (insert_vdev(in->name, NULL, NULL) < 0)
> + ret = insert_vdev(in->name, NULL, NULL);
> + if (ret == -EEXIST)
> + VDEV_LOG(INFO, "device already exist, %s", in->name);
This is probably going to be printed a lot, and there's no real point in
that. Maybe set log level to DEBUG instead?
> + else if (ret < 0)
> VDEV_LOG(ERR, "failed to add vdev, %s", in->name);
> break;
> default:
>
--
Thanks,
Anatoly
^ permalink raw reply [flat|nested] 6+ messages in thread* [dpdk-dev] [PATCH] bus/vdev: fix wrong error log on secondary device scan
2018-08-27 12:27 [dpdk-dev] [PATCH] bus/vdev: fix wrong error log on secondary device scan Qi Zhang
2018-08-27 16:16 ` Burakov, Anatoly
@ 2018-09-03 8:49 ` Qi Zhang
2018-09-03 8:50 ` [dpdk-dev] [PATCH v2] " Qi Zhang
2 siblings, 0 replies; 6+ messages in thread
From: Qi Zhang @ 2018-09-03 8:49 UTC (permalink / raw)
To: dev; +Cc: thomas, anatoly.burakov, gage.eads, Qi Zhang, stable
When a secondary process handles VDEV_SCAN_ONE mp action, it is possible
the device is already be inserted. This happens when we have multiple
secondary processes which cause multiple broadcasts from primary during
bus->scan. So we don't need to log any error for -EEXIST.
Bugzilla ID: 84
Fixes: cdb068f031c6 ("bus/vdev: scan by multi-process channel")
Cc: stable@dpdk.org
Reported-by: Eads Gage <gage.eads@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
---
v2:
- change log level to DEBUG for the case device already exist.
drivers/bus/vdev/vdev.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/bus/vdev/vdev.c b/drivers/bus/vdev/vdev.c
index 6139dd551..69dee89a8 100644
--- a/drivers/bus/vdev/vdev.c
+++ b/drivers/bus/vdev/vdev.c
@@ -346,6 +346,7 @@ vdev_action(const struct rte_mp_msg *mp_msg, const void *peer)
const struct vdev_param *in = (const struct vdev_param *)mp_msg->param;
const char *devname;
int num;
+ int ret;
strlcpy(mp_resp.name, VDEV_MP_KEY, sizeof(mp_resp.name));
mp_resp.len_param = sizeof(*ou);
@@ -380,7 +381,10 @@ vdev_action(const struct rte_mp_msg *mp_msg, const void *peer)
break;
case VDEV_SCAN_ONE:
VDEV_LOG(INFO, "receive vdev, %s", in->name);
- if (insert_vdev(in->name, NULL, NULL) < 0)
+ ret = insert_vdev(in->name, NULL, NULL);
+ if (ret == -EEXIST)
+ VDEV_LOG(DEBUG, "device already exist, %s", in->name);
+ else if (ret < 0)
VDEV_LOG(ERR, "failed to add vdev, %s", in->name);
break;
default:
--
2.13.6
^ permalink raw reply [flat|nested] 6+ messages in thread* [dpdk-dev] [PATCH v2] bus/vdev: fix wrong error log on secondary device scan
2018-08-27 12:27 [dpdk-dev] [PATCH] bus/vdev: fix wrong error log on secondary device scan Qi Zhang
2018-08-27 16:16 ` Burakov, Anatoly
2018-09-03 8:49 ` Qi Zhang
@ 2018-09-03 8:50 ` Qi Zhang
2018-09-04 14:45 ` Eads, Gage
2 siblings, 1 reply; 6+ messages in thread
From: Qi Zhang @ 2018-09-03 8:50 UTC (permalink / raw)
To: dev; +Cc: thomas, anatoly.burakov, gage.eads, Qi Zhang, stable
When a secondary process handles VDEV_SCAN_ONE mp action, it is possible
the device is already be inserted. This happens when we have multiple
secondary processes which cause multiple broadcasts from primary during
bus->scan. So we don't need to log any error for -EEXIST.
Bugzilla ID: 84
Fixes: cdb068f031c6 ("bus/vdev: scan by multi-process channel")
Cc: stable@dpdk.org
Reported-by: Eads Gage <gage.eads@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
---
v2:
- change log level to DEBUG for the case device already exist.
drivers/bus/vdev/vdev.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/bus/vdev/vdev.c b/drivers/bus/vdev/vdev.c
index 6139dd551..69dee89a8 100644
--- a/drivers/bus/vdev/vdev.c
+++ b/drivers/bus/vdev/vdev.c
@@ -346,6 +346,7 @@ vdev_action(const struct rte_mp_msg *mp_msg, const void *peer)
const struct vdev_param *in = (const struct vdev_param *)mp_msg->param;
const char *devname;
int num;
+ int ret;
strlcpy(mp_resp.name, VDEV_MP_KEY, sizeof(mp_resp.name));
mp_resp.len_param = sizeof(*ou);
@@ -380,7 +381,10 @@ vdev_action(const struct rte_mp_msg *mp_msg, const void *peer)
break;
case VDEV_SCAN_ONE:
VDEV_LOG(INFO, "receive vdev, %s", in->name);
- if (insert_vdev(in->name, NULL, NULL) < 0)
+ ret = insert_vdev(in->name, NULL, NULL);
+ if (ret == -EEXIST)
+ VDEV_LOG(DEBUG, "device already exist, %s", in->name);
+ else if (ret < 0)
VDEV_LOG(ERR, "failed to add vdev, %s", in->name);
break;
default:
--
2.13.6
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [dpdk-dev] [PATCH v2] bus/vdev: fix wrong error log on secondary device scan
2018-09-03 8:50 ` [dpdk-dev] [PATCH v2] " Qi Zhang
@ 2018-09-04 14:45 ` Eads, Gage
2018-09-16 9:35 ` Thomas Monjalon
0 siblings, 1 reply; 6+ messages in thread
From: Eads, Gage @ 2018-09-04 14:45 UTC (permalink / raw)
To: Zhang, Qi Z, dev; +Cc: thomas, Burakov, Anatoly, stable
Acked-by: Gage Eads <gage.eads@intel.com>
Thanks!
Gage
> -----Original Message-----
> From: Zhang, Qi Z
> Sent: Monday, September 3, 2018 3:50 AM
> To: dev@dpdk.org
> Cc: thomas@monjalon.net; Burakov, Anatoly <anatoly.burakov@intel.com>;
> Eads, Gage <gage.eads@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>;
> stable@dpdk.org
> Subject: [PATCH v2] bus/vdev: fix wrong error log on secondary device scan
>
> When a secondary process handles VDEV_SCAN_ONE mp action, it is possible
> the device is already be inserted. This happens when we have multiple secondary
> processes which cause multiple broadcasts from primary during
> bus->scan. So we don't need to log any error for -EEXIST.
>
> Bugzilla ID: 84
> Fixes: cdb068f031c6 ("bus/vdev: scan by multi-process channel")
> Cc: stable@dpdk.org
>
> Reported-by: Eads Gage <gage.eads@intel.com>
> Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
> ---
>
> v2:
> - change log level to DEBUG for the case device already exist.
>
> drivers/bus/vdev/vdev.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/bus/vdev/vdev.c b/drivers/bus/vdev/vdev.c index
> 6139dd551..69dee89a8 100644
> --- a/drivers/bus/vdev/vdev.c
> +++ b/drivers/bus/vdev/vdev.c
> @@ -346,6 +346,7 @@ vdev_action(const struct rte_mp_msg *mp_msg, const
> void *peer)
> const struct vdev_param *in = (const struct vdev_param *)mp_msg-
> >param;
> const char *devname;
> int num;
> + int ret;
>
> strlcpy(mp_resp.name, VDEV_MP_KEY, sizeof(mp_resp.name));
> mp_resp.len_param = sizeof(*ou);
> @@ -380,7 +381,10 @@ vdev_action(const struct rte_mp_msg *mp_msg, const
> void *peer)
> break;
> case VDEV_SCAN_ONE:
> VDEV_LOG(INFO, "receive vdev, %s", in->name);
> - if (insert_vdev(in->name, NULL, NULL) < 0)
> + ret = insert_vdev(in->name, NULL, NULL);
> + if (ret == -EEXIST)
> + VDEV_LOG(DEBUG, "device already exist, %s", in-
> >name);
> + else if (ret < 0)
> VDEV_LOG(ERR, "failed to add vdev, %s", in->name);
> break;
> default:
> --
> 2.13.6
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [dpdk-dev] [PATCH v2] bus/vdev: fix wrong error log on secondary device scan
2018-09-04 14:45 ` Eads, Gage
@ 2018-09-16 9:35 ` Thomas Monjalon
0 siblings, 0 replies; 6+ messages in thread
From: Thomas Monjalon @ 2018-09-16 9:35 UTC (permalink / raw)
To: Zhang, Qi Z; +Cc: dev, Eads, Gage, Burakov, Anatoly, stable
> > When a secondary process handles VDEV_SCAN_ONE mp action, it is possible
> > the device is already be inserted. This happens when we have multiple secondary
> > processes which cause multiple broadcasts from primary during
> > bus->scan. So we don't need to log any error for -EEXIST.
> >
> > Bugzilla ID: 84
> > Fixes: cdb068f031c6 ("bus/vdev: scan by multi-process channel")
> > Cc: stable@dpdk.org
> >
> > Reported-by: Eads Gage <gage.eads@intel.com>
> > Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
> Acked-by: Gage Eads <gage.eads@intel.com>
Applied, thanks
^ permalink raw reply [flat|nested] 6+ messages in thread