[PATCH 1/2] net/mlx4: fix returned values upon failed probing

[PATCH 1/2] net/mlx4: fix returned values upon failed probing

[Gaetan Rivet]

Let error messages in place, but return unambiguous values upon
probing errors.

Fixes: 66e1591687ac ("mlx4: avoid init errors when kernel modules are not loaded")
Cc: stable@dpdk.org

Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
---
 drivers/net/mlx4/mlx4.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c
index 665d8f7..24166c9 100644
--- a/drivers/net/mlx4/mlx4.c
+++ b/drivers/net/mlx4/mlx4.c
@@ -5706,10 +5706,8 @@ mlx4_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
 	list = ibv_exp_get_device_list(&i);
 	if (list == NULL) {
 		assert(errno);
-		if (errno == ENOSYS) {
-			WARN("cannot list devices, is ib_uverbs loaded?");
-			return 0;
-		}
+		if (errno == ENOSYS)
+			ERROR("cannot list devices, is ib_uverbs loaded?");
 		return -errno;
 	}
 	assert(i >= 0);
@@ -5741,11 +5739,11 @@ mlx4_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
 		ibv_free_device_list(list);
 		switch (err) {
 		case 0:
-			WARN("cannot access device, is mlx4_ib loaded?");
-			return 0;
+			ERROR("cannot access device, is mlx4_ib loaded?");
+			return -ENODEV;
 		case EINVAL:
-			WARN("cannot use device, are drivers up to date?");
-			return 0;
+			ERROR("cannot use device, are drivers up to date?");
+			return -EINVAL;
 		}
 		assert(err > 0);
 		return -err;
-- 
2.1.4

[PATCH 2/2] net/mlx5: fix returned values upon failed probing

[Gaetan Rivet]

Fixes: 771fa900b73a ("mlx5: introduce new driver for Mellanox ConnectX-4 adapters")
Cc: stable@dpdk.org

Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
---
 drivers/net/mlx5/mlx5.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index bc6a34f..f034e88 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -408,10 +408,8 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
 	list = ibv_get_device_list(&i);
 	if (list == NULL) {
 		assert(errno);
-		if (errno == ENOSYS) {
-			WARN("cannot list devices, is ib_uverbs loaded?");
-			return 0;
-		}
+		if (errno == ENOSYS)
+			ERROR("cannot list devices, is ib_uverbs loaded?");
 		return -errno;
 	}
 	assert(i >= 0);
@@ -475,11 +473,11 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
 		ibv_free_device_list(list);
 		switch (err) {
 		case 0:
-			WARN("cannot access device, is mlx5_ib loaded?");
-			return 0;
+			ERROR("cannot access device, is mlx5_ib loaded?");
+			return -ENODEV;
 		case EINVAL:
-			WARN("cannot use device, are drivers up to date?");
-			return 0;
+			ERROR("cannot use device, are drivers up to date?");
+			return -EINVAL;
 		}
 		assert(err > 0);
 		return -err;
-- 
2.1.4

Re: [dpdk-stable] [PATCH 1/2] net/mlx4: fix returned values upon failed probing

[Ferruh Yigit]

On 3/27/2017 3:17 PM, Gaetan Rivet wrote:
> Let error messages in place, but return unambiguous values upon
> probing errors.
> 
> Fixes: 66e1591687ac ("mlx4: avoid init errors when kernel modules are not loaded")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
> Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>

Hi Gaetan,

I am getting merge conflict in this patch, can you please rebase it on
top of latest next-net?

Thanks,
ferruh

[PATCH v2 1/2] net/mlx4: fix returned values upon failed probing

[Gaetan Rivet]

Let error messages in place, but return unambiguous values upon
probing errors.

Fixes: 66e1591687ac ("mlx4: avoid init errors when kernel modules are not loaded")
Cc: stable@dpdk.org

Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
---
 drivers/net/mlx4/mlx4.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c
index 4427ca3..350b2f4 100644
--- a/drivers/net/mlx4/mlx4.c
+++ b/drivers/net/mlx4/mlx4.c
@@ -5521,10 +5521,8 @@ mlx4_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
 	list = ibv_get_device_list(&i);
 	if (list == NULL) {
 		assert(errno);
-		if (errno == ENOSYS) {
-			WARN("cannot list devices, is ib_uverbs loaded?");
-			return 0;
-		}
+		if (errno == ENOSYS)
+			ERROR("cannot list devices, is ib_uverbs loaded?");
 		return -errno;
 	}
 	assert(i >= 0);
@@ -5556,11 +5554,11 @@ mlx4_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
 		ibv_free_device_list(list);
 		switch (err) {
 		case 0:
-			WARN("cannot access device, is mlx4_ib loaded?");
-			return 0;
+			ERROR("cannot access device, is mlx4_ib loaded?");
+			return -ENODEV;
 		case EINVAL:
-			WARN("cannot use device, are drivers up to date?");
-			return 0;
+			ERROR("cannot use device, are drivers up to date?");
+			return -EINVAL;
 		}
 		assert(err > 0);
 		return -err;
-- 
2.1.4

[PATCH v2 2/2] net/mlx5: fix returned values upon failed probing

[Gaetan Rivet]

Fixes: 771fa900b73a ("mlx5: introduce new driver for Mellanox ConnectX-4 adapters")
Cc: stable@dpdk.org

Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
---
 drivers/net/mlx5/mlx5.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index bc6a34f..f034e88 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -408,10 +408,8 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
 	list = ibv_get_device_list(&i);
 	if (list == NULL) {
 		assert(errno);
-		if (errno == ENOSYS) {
-			WARN("cannot list devices, is ib_uverbs loaded?");
-			return 0;
-		}
+		if (errno == ENOSYS)
+			ERROR("cannot list devices, is ib_uverbs loaded?");
 		return -errno;
 	}
 	assert(i >= 0);
@@ -475,11 +473,11 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
 		ibv_free_device_list(list);
 		switch (err) {
 		case 0:
-			WARN("cannot access device, is mlx5_ib loaded?");
-			return 0;
+			ERROR("cannot access device, is mlx5_ib loaded?");
+			return -ENODEV;
 		case EINVAL:
-			WARN("cannot use device, are drivers up to date?");
-			return 0;
+			ERROR("cannot use device, are drivers up to date?");
+			return -EINVAL;
 		}
 		assert(err > 0);
 		return -err;
-- 
2.1.4

Re: [dpdk-stable] [PATCH 1/2] net/mlx4: fix returned values upon failed probing

[Gaëtan Rivet]

Hi Ferruh,

On Tue, Mar 28, 2017 at 11:15:42AM +0100, Ferruh Yigit wrote:
>On 3/27/2017 3:17 PM, Gaetan Rivet wrote:
>> Let error messages in place, but return unambiguous values upon
>> probing errors.
>>
>> Fixes: 66e1591687ac ("mlx4: avoid init errors when kernel modules are not loaded")
>> Cc: stable@dpdk.org
>>
>> Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
>> Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
>
>Hi Gaetan,
>
>I am getting merge conflict in this patch, can you please rebase it on
>top of latest next-net?
>

Here: http://dpdk.org/ml/archives/dev/2017-March/061871.html

>Thanks,
>ferruh
>
>

-- 
Gaëtan Rivet
6WIND

Re: [dpdk-stable] [PATCH v2 1/2] net/mlx4: fix returned values upon failed probing

[Ferruh Yigit]

On 3/28/2017 3:13 PM, Gaetan Rivet wrote:
> Let error messages in place, but return unambiguous values upon
> probing errors.
> 
> Fixes: 66e1591687ac ("mlx4: avoid init errors when kernel modules are not loaded")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
> Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>

Series applied to dpdk-next-net/master, thanks.

(These were included into RC1, patches updated in patchwork, but it
seems missed notifying via e-mail, which is done now)