* [dpdk-stable] [PATCH v3 0/4] make vhost PMD available for secondary processes
[not found] <20200108062510.3478-1-oda@valinux.co.jp>
@ 2020-02-06 1:39 ` Itsuro Oda
2020-02-06 1:39 ` [dpdk-stable] [PATCH v3 1/4] net/vhost: allocate interface name from heap Itsuro Oda
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: Itsuro Oda @ 2020-02-06 1:39 UTC (permalink / raw)
To: dev, maxime.coquelin, tiwei.bie, zhihong.wang, anatoly.burakov; +Cc: stable
vhost PMD has not been available for secondary processes since
DPDK v18.11. (https://bugs.dpdk.org/show_bug.cgi?id=194)
(for a long term !)
This series of patches intend to make vhost PMD available for
secondary processes.
Because now setting vhost driver to communicate with a vhost-user
master (ex. Qemu) is accomplished by the probe function of the
primary process, only the primary process can be a vhost-user
slave.
With this patch, setting vhost driver is delayed at eth_dev
configuration in order to be able to set it from a secondary
process. Because (in the first place,) setting vhost driver is not
necessary to be done at probe (it is enough to be done up to eth_dev
start), this fix is no problem for the primary process.
There is a precondition that the same process has to operate
a vhost interface from beginning to end (from eth_dev configuration
to eth_dev close). (This patch leaves it to user's responsibility.)
This precondition will not be a problem in most use cases
(including SPP).
v2:
- add signed-off-by
- fix spelling error
v3:
- rebase on dpdk-next-virtio master
- change patch order
- fix subject and commit message
Itsuro Oda (4):
net/vhost: allocate interface name from heap
net/vhost: delay vhost driver setup
net/vhost: make secondary probe complete
net/vhost: remove an unused member
drivers/net/vhost/rte_eth_vhost.c | 152 +++++++++++++++++-------------
1 file changed, 88 insertions(+), 64 deletions(-)
--
2.17.0
^ permalink raw reply [flat|nested] 7+ messages in thread
* [dpdk-stable] [PATCH v3 1/4] net/vhost: allocate interface name from heap
2020-02-06 1:39 ` [dpdk-stable] [PATCH v3 0/4] make vhost PMD available for secondary processes Itsuro Oda
@ 2020-02-06 1:39 ` Itsuro Oda
2020-02-06 1:39 ` [dpdk-stable] [PATCH v3 2/4] net/vhost: delay vhost driver setup Itsuro Oda
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Itsuro Oda @ 2020-02-06 1:39 UTC (permalink / raw)
To: dev, maxime.coquelin, tiwei.bie, zhihong.wang, anatoly.burakov; +Cc: stable
This patch allocates iface_name of pmd_internal from heap
in order to be able to refer from secondary processes.
Fixes: 4852aa8f6e21 (drivers/net: enable hotplug on secondary process)
Cc: stable@dpdk.org
Signed-off-by: Itsuro Oda <oda@valinux.co.jp>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
drivers/net/vhost/rte_eth_vhost.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/net/vhost/rte_eth_vhost.c b/drivers/net/vhost/rte_eth_vhost.c
index a63588986..cea2ead2d 100644
--- a/drivers/net/vhost/rte_eth_vhost.c
+++ b/drivers/net/vhost/rte_eth_vhost.c
@@ -1009,7 +1009,7 @@ eth_dev_close(struct rte_eth_dev *dev)
rte_free(dev->data->tx_queues[i]);
free(internal->dev_name);
- free(internal->iface_name);
+ rte_free(internal->iface_name);
rte_free(internal);
dev->data->dev_private = NULL;
@@ -1256,9 +1256,11 @@ eth_dev_vhost_create(struct rte_vdev_device *dev, char *iface_name,
internal->dev_name = strdup(name);
if (internal->dev_name == NULL)
goto error;
- internal->iface_name = strdup(iface_name);
+ internal->iface_name = rte_malloc_socket(name, strlen(iface_name) + 1,
+ 0, numa_node);
if (internal->iface_name == NULL)
goto error;
+ strcpy(internal->iface_name, iface_name);
list->eth_dev = eth_dev;
pthread_mutex_lock(&internal_list_lock);
@@ -1306,7 +1308,7 @@ eth_dev_vhost_create(struct rte_vdev_device *dev, char *iface_name,
error:
if (internal) {
- free(internal->iface_name);
+ rte_free(internal->iface_name);
free(internal->dev_name);
}
rte_free(vring_state);
--
2.17.0
^ permalink raw reply [flat|nested] 7+ messages in thread
* [dpdk-stable] [PATCH v3 2/4] net/vhost: delay vhost driver setup
2020-02-06 1:39 ` [dpdk-stable] [PATCH v3 0/4] make vhost PMD available for secondary processes Itsuro Oda
2020-02-06 1:39 ` [dpdk-stable] [PATCH v3 1/4] net/vhost: allocate interface name from heap Itsuro Oda
@ 2020-02-06 1:39 ` Itsuro Oda
2020-02-06 1:39 ` [dpdk-stable] [PATCH v3 3/4] net/vhost: make secondary probe complete Itsuro Oda
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Itsuro Oda @ 2020-02-06 1:39 UTC (permalink / raw)
To: dev, maxime.coquelin, tiwei.bie, zhihong.wang, anatoly.burakov; +Cc: stable
Vhost driver setup is delayed at eth_dev configuration
in order to be able to set it from a secondary process.
Fixes: 4852aa8f6e21 (drivers/net: enable hotplug on secondary process)
Cc: stable@dpdk.org
Signed-off-by: Itsuro Oda <oda@valinux.co.jp>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
drivers/net/vhost/rte_eth_vhost.c | 130 ++++++++++++++++++------------
1 file changed, 78 insertions(+), 52 deletions(-)
diff --git a/drivers/net/vhost/rte_eth_vhost.c b/drivers/net/vhost/rte_eth_vhost.c
index cea2ead2d..d7bba5c6e 100644
--- a/drivers/net/vhost/rte_eth_vhost.c
+++ b/drivers/net/vhost/rte_eth_vhost.c
@@ -97,6 +97,8 @@ struct pmd_internal {
rte_atomic32_t dev_attached;
char *dev_name;
char *iface_name;
+ uint64_t flags;
+ uint64_t disable_flags;
uint16_t max_queues;
int vid;
rte_atomic32_t started;
@@ -491,17 +493,6 @@ eth_vhost_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
return nb_tx;
}
-static int
-eth_dev_configure(struct rte_eth_dev *dev __rte_unused)
-{
- struct pmd_internal *internal = dev->data->dev_private;
- const struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
-
- internal->vlan_strip = !!(rxmode->offloads & DEV_RX_OFFLOAD_VLAN_STRIP);
-
- return 0;
-}
-
static inline struct internal_list *
find_internal_resource(char *ifname)
{
@@ -877,6 +868,62 @@ static struct vhost_device_ops vhost_ops = {
.vring_state_changed = vring_state_changed,
};
+static int
+vhost_driver_setup(struct rte_eth_dev *eth_dev)
+{
+ struct pmd_internal *internal = eth_dev->data->dev_private;
+ struct internal_list *list = NULL;
+ struct rte_vhost_vring_state *vring_state = NULL;
+ unsigned int numa_node = eth_dev->device->numa_node;
+ const char *name = eth_dev->device->name;
+
+ list = rte_zmalloc_socket(name, sizeof(*list), 0, numa_node);
+ if (list == NULL)
+ goto error;
+
+ vring_state = rte_zmalloc_socket(name, sizeof(*vring_state),
+ 0, numa_node);
+ if (vring_state == NULL)
+ goto error;
+
+ list->eth_dev = eth_dev;
+ pthread_mutex_lock(&internal_list_lock);
+ TAILQ_INSERT_TAIL(&internal_list, list, next);
+ pthread_mutex_unlock(&internal_list_lock);
+
+ rte_spinlock_init(&vring_state->lock);
+ vring_states[eth_dev->data->port_id] = vring_state;
+
+ if (rte_vhost_driver_register(internal->iface_name, internal->flags))
+ goto error;
+
+ if (internal->disable_flags) {
+ if (rte_vhost_driver_disable_features(internal->iface_name,
+ internal->disable_flags))
+ goto error;
+ }
+
+ if (rte_vhost_driver_callback_register(internal->iface_name,
+ &vhost_ops) < 0) {
+ VHOST_LOG(ERR, "Can't register callbacks\n");
+ goto error;
+ }
+
+ if (rte_vhost_driver_start(internal->iface_name) < 0) {
+ VHOST_LOG(ERR, "Failed to start driver for %s\n",
+ internal->iface_name);
+ goto error;
+ }
+
+ return 0;
+
+error:
+ rte_free(vring_state);
+ rte_free(list);
+
+ return -1;
+}
+
int
rte_eth_vhost_get_queue_event(uint16_t port_id,
struct rte_eth_vhost_queue_event *event)
@@ -943,6 +990,24 @@ rte_eth_vhost_get_vid_from_port_id(uint16_t port_id)
return vid;
}
+static int
+eth_dev_configure(struct rte_eth_dev *dev)
+{
+ struct pmd_internal *internal = dev->data->dev_private;
+ const struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
+
+ /* NOTE: the same process has to operate a vhost interface
+ * from beginning to end (from eth_dev configure to eth_dev close).
+ * It is user's responsibility at the moment.
+ */
+ if (vhost_driver_setup(dev) < 0)
+ return -1;
+
+ internal->vlan_strip = !!(rxmode->offloads & DEV_RX_OFFLOAD_VLAN_STRIP);
+
+ return 0;
+}
+
static int
eth_dev_start(struct rte_eth_dev *eth_dev)
{
@@ -1219,16 +1284,10 @@ eth_dev_vhost_create(struct rte_vdev_device *dev, char *iface_name,
struct pmd_internal *internal = NULL;
struct rte_eth_dev *eth_dev = NULL;
struct rte_ether_addr *eth_addr = NULL;
- struct rte_vhost_vring_state *vring_state = NULL;
- struct internal_list *list = NULL;
VHOST_LOG(INFO, "Creating VHOST-USER backend on numa socket %u\n",
numa_node);
- list = rte_zmalloc_socket(name, sizeof(*list), 0, numa_node);
- if (list == NULL)
- goto error;
-
/* reserve an ethdev entry */
eth_dev = rte_eth_vdev_allocate(dev, sizeof(*internal));
if (eth_dev == NULL)
@@ -1242,11 +1301,6 @@ eth_dev_vhost_create(struct rte_vdev_device *dev, char *iface_name,
*eth_addr = base_eth_addr;
eth_addr->addr_bytes[5] = eth_dev->data->port_id;
- vring_state = rte_zmalloc_socket(name,
- sizeof(*vring_state), 0, numa_node);
- if (vring_state == NULL)
- goto error;
-
/* now put it all together
* - store queue data in internal,
* - point eth_dev_data to internals
@@ -1262,18 +1316,12 @@ eth_dev_vhost_create(struct rte_vdev_device *dev, char *iface_name,
goto error;
strcpy(internal->iface_name, iface_name);
- list->eth_dev = eth_dev;
- pthread_mutex_lock(&internal_list_lock);
- TAILQ_INSERT_TAIL(&internal_list, list, next);
- pthread_mutex_unlock(&internal_list_lock);
-
- rte_spinlock_init(&vring_state->lock);
- vring_states[eth_dev->data->port_id] = vring_state;
-
data->nb_rx_queues = queues;
data->nb_tx_queues = queues;
internal->max_queues = queues;
internal->vid = -1;
+ internal->flags = flags;
+ internal->disable_flags = disable_flags;
data->dev_link = pmd_link;
data->dev_flags = RTE_ETH_DEV_INTR_LSC | RTE_ETH_DEV_CLOSE_REMOVE;
@@ -1283,26 +1331,6 @@ eth_dev_vhost_create(struct rte_vdev_device *dev, char *iface_name,
eth_dev->rx_pkt_burst = eth_vhost_rx;
eth_dev->tx_pkt_burst = eth_vhost_tx;
- if (rte_vhost_driver_register(iface_name, flags))
- goto error;
-
- if (disable_flags) {
- if (rte_vhost_driver_disable_features(iface_name,
- disable_flags))
- goto error;
- }
-
- if (rte_vhost_driver_callback_register(iface_name, &vhost_ops) < 0) {
- VHOST_LOG(ERR, "Can't register callbacks\n");
- goto error;
- }
-
- if (rte_vhost_driver_start(iface_name) < 0) {
- VHOST_LOG(ERR, "Failed to start driver for %s\n",
- iface_name);
- goto error;
- }
-
rte_eth_dev_probing_finish(eth_dev);
return 0;
@@ -1311,9 +1339,7 @@ eth_dev_vhost_create(struct rte_vdev_device *dev, char *iface_name,
rte_free(internal->iface_name);
free(internal->dev_name);
}
- rte_free(vring_state);
rte_eth_dev_release_port(eth_dev);
- rte_free(list);
return -1;
}
--
2.17.0
^ permalink raw reply [flat|nested] 7+ messages in thread
* [dpdk-stable] [PATCH v3 3/4] net/vhost: make secondary probe complete
2020-02-06 1:39 ` [dpdk-stable] [PATCH v3 0/4] make vhost PMD available for secondary processes Itsuro Oda
2020-02-06 1:39 ` [dpdk-stable] [PATCH v3 1/4] net/vhost: allocate interface name from heap Itsuro Oda
2020-02-06 1:39 ` [dpdk-stable] [PATCH v3 2/4] net/vhost: delay vhost driver setup Itsuro Oda
@ 2020-02-06 1:39 ` Itsuro Oda
2020-02-06 1:39 ` [dpdk-stable] [PATCH v3 4/4] net/vhost: remove an unused member Itsuro Oda
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Itsuro Oda @ 2020-02-06 1:39 UTC (permalink / raw)
To: dev, maxime.coquelin, tiwei.bie, zhihong.wang, anatoly.burakov; +Cc: stable
This patch adds lacking member setting and makes secondary
probe complete.
Fixes: 4852aa8f6e21 (drivers/net: enable hotplug on secondary process)
Cc: stable@dpdk.org
Signed-off-by: Itsuro Oda <oda@valinux.co.jp>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
drivers/net/vhost/rte_eth_vhost.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/vhost/rte_eth_vhost.c b/drivers/net/vhost/rte_eth_vhost.c
index d7bba5c6e..307de2c68 100644
--- a/drivers/net/vhost/rte_eth_vhost.c
+++ b/drivers/net/vhost/rte_eth_vhost.c
@@ -1397,8 +1397,11 @@ rte_pmd_vhost_probe(struct rte_vdev_device *dev)
VHOST_LOG(ERR, "Failed to probe %s\n", name);
return -1;
}
- /* TODO: request info from primary to set up Rx and Tx */
+ eth_dev->rx_pkt_burst = eth_vhost_rx;
+ eth_dev->tx_pkt_burst = eth_vhost_tx;
eth_dev->dev_ops = &ops;
+ if (dev->device.numa_node == SOCKET_ID_ANY)
+ dev->device.numa_node = rte_socket_id();
eth_dev->device = &dev->device;
rte_eth_dev_probing_finish(eth_dev);
return 0;
--
2.17.0
^ permalink raw reply [flat|nested] 7+ messages in thread
* [dpdk-stable] [PATCH v3 4/4] net/vhost: remove an unused member
2020-02-06 1:39 ` [dpdk-stable] [PATCH v3 0/4] make vhost PMD available for secondary processes Itsuro Oda
` (2 preceding siblings ...)
2020-02-06 1:39 ` [dpdk-stable] [PATCH v3 3/4] net/vhost: make secondary probe complete Itsuro Oda
@ 2020-02-06 1:39 ` Itsuro Oda
2020-02-06 14:19 ` [dpdk-stable] [PATCH v3 0/4] make vhost PMD available for secondary processes Maxime Coquelin
2020-02-13 16:29 ` Maxime Coquelin
5 siblings, 0 replies; 7+ messages in thread
From: Itsuro Oda @ 2020-02-06 1:39 UTC (permalink / raw)
To: dev, maxime.coquelin, tiwei.bie, zhihong.wang, anatoly.burakov; +Cc: stable
This patch removes an unused member from pmd_internal.
Signed-off-by: Itsuro Oda <oda@valinux.co.jp>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
drivers/net/vhost/rte_eth_vhost.c | 9 +--------
1 file changed, 1 insertion(+), 8 deletions(-)
diff --git a/drivers/net/vhost/rte_eth_vhost.c b/drivers/net/vhost/rte_eth_vhost.c
index 307de2c68..90263ae77 100644
--- a/drivers/net/vhost/rte_eth_vhost.c
+++ b/drivers/net/vhost/rte_eth_vhost.c
@@ -95,7 +95,6 @@ struct vhost_queue {
struct pmd_internal {
rte_atomic32_t dev_attached;
- char *dev_name;
char *iface_name;
uint64_t flags;
uint64_t disable_flags;
@@ -1073,7 +1072,6 @@ eth_dev_close(struct rte_eth_dev *dev)
for (i = 0; i < dev->data->nb_tx_queues; i++)
rte_free(dev->data->tx_queues[i]);
- free(internal->dev_name);
rte_free(internal->iface_name);
rte_free(internal);
@@ -1307,9 +1305,6 @@ eth_dev_vhost_create(struct rte_vdev_device *dev, char *iface_name,
* - and point eth_dev structure to new eth_dev_data structure
*/
internal = eth_dev->data->dev_private;
- internal->dev_name = strdup(name);
- if (internal->dev_name == NULL)
- goto error;
internal->iface_name = rte_malloc_socket(name, strlen(iface_name) + 1,
0, numa_node);
if (internal->iface_name == NULL)
@@ -1335,10 +1330,8 @@ eth_dev_vhost_create(struct rte_vdev_device *dev, char *iface_name,
return 0;
error:
- if (internal) {
+ if (internal)
rte_free(internal->iface_name);
- free(internal->dev_name);
- }
rte_eth_dev_release_port(eth_dev);
return -1;
--
2.17.0
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [dpdk-stable] [PATCH v3 0/4] make vhost PMD available for secondary processes
2020-02-06 1:39 ` [dpdk-stable] [PATCH v3 0/4] make vhost PMD available for secondary processes Itsuro Oda
` (3 preceding siblings ...)
2020-02-06 1:39 ` [dpdk-stable] [PATCH v3 4/4] net/vhost: remove an unused member Itsuro Oda
@ 2020-02-06 14:19 ` Maxime Coquelin
2020-02-13 16:29 ` Maxime Coquelin
5 siblings, 0 replies; 7+ messages in thread
From: Maxime Coquelin @ 2020-02-06 14:19 UTC (permalink / raw)
To: Itsuro Oda, dev, tiwei.bie, zhihong.wang, anatoly.burakov; +Cc: stable
On 2/6/20 2:39 AM, Itsuro Oda wrote:
> vhost PMD has not been available for secondary processes since
> DPDK v18.11. (https://bugs.dpdk.org/show_bug.cgi?id=194)
> (for a long term !)
> This series of patches intend to make vhost PMD available for
> secondary processes.
> Because now setting vhost driver to communicate with a vhost-user
> master (ex. Qemu) is accomplished by the probe function of the
> primary process, only the primary process can be a vhost-user
> slave.
> With this patch, setting vhost driver is delayed at eth_dev
> configuration in order to be able to set it from a secondary
> process. Because (in the first place,) setting vhost driver is not
> necessary to be done at probe (it is enough to be done up to eth_dev
> start), this fix is no problem for the primary process.
> There is a precondition that the same process has to operate
> a vhost interface from beginning to end (from eth_dev configuration
> to eth_dev close). (This patch leaves it to user's responsibility.)
> This precondition will not be a problem in most use cases
> (including SPP).
>
> v2:
> - add signed-off-by
> - fix spelling error
>
> v3:
> - rebase on dpdk-next-virtio master
> - change patch order
> - fix subject and commit message
>
> Itsuro Oda (4):
> net/vhost: allocate interface name from heap
> net/vhost: delay vhost driver setup
> net/vhost: make secondary probe complete
> net/vhost: remove an unused member
>
> drivers/net/vhost/rte_eth_vhost.c | 152 +++++++++++++++++-------------
> 1 file changed, 88 insertions(+), 64 deletions(-)
>
Thanks Itsuro, it looks good to me.
I will pull the series for v20.02-rc3.
Maxime
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [dpdk-stable] [PATCH v3 0/4] make vhost PMD available for secondary processes
2020-02-06 1:39 ` [dpdk-stable] [PATCH v3 0/4] make vhost PMD available for secondary processes Itsuro Oda
` (4 preceding siblings ...)
2020-02-06 14:19 ` [dpdk-stable] [PATCH v3 0/4] make vhost PMD available for secondary processes Maxime Coquelin
@ 2020-02-13 16:29 ` Maxime Coquelin
5 siblings, 0 replies; 7+ messages in thread
From: Maxime Coquelin @ 2020-02-13 16:29 UTC (permalink / raw)
To: Itsuro Oda, dev, tiwei.bie, zhihong.wang, anatoly.burakov; +Cc: stable
On 2/6/20 2:39 AM, Itsuro Oda wrote:
> vhost PMD has not been available for secondary processes since
> DPDK v18.11. (https://bugs.dpdk.org/show_bug.cgi?id=194)
> (for a long term !)
> This series of patches intend to make vhost PMD available for
> secondary processes.
> Because now setting vhost driver to communicate with a vhost-user
> master (ex. Qemu) is accomplished by the probe function of the
> primary process, only the primary process can be a vhost-user
> slave.
> With this patch, setting vhost driver is delayed at eth_dev
> configuration in order to be able to set it from a secondary
> process. Because (in the first place,) setting vhost driver is not
> necessary to be done at probe (it is enough to be done up to eth_dev
> start), this fix is no problem for the primary process.
> There is a precondition that the same process has to operate
> a vhost interface from beginning to end (from eth_dev configuration
> to eth_dev close). (This patch leaves it to user's responsibility.)
> This precondition will not be a problem in most use cases
> (including SPP).
>
> v2:
> - add signed-off-by
> - fix spelling error
>
> v3:
> - rebase on dpdk-next-virtio master
> - change patch order
> - fix subject and commit message
>
> Itsuro Oda (4):
> net/vhost: allocate interface name from heap
> net/vhost: delay vhost driver setup
> net/vhost: make secondary probe complete
> net/vhost: remove an unused member
>
> drivers/net/vhost/rte_eth_vhost.c | 152 +++++++++++++++++-------------
> 1 file changed, 88 insertions(+), 64 deletions(-)
>
Applied to dpdk-next-virtio/master
Thanks,
Maxime
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2020-02-13 16:29 UTC | newest]
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2020-02-06 1:39 ` [dpdk-stable] [PATCH v3 0/4] make vhost PMD available for secondary processes Itsuro Oda
2020-02-06 1:39 ` [dpdk-stable] [PATCH v3 1/4] net/vhost: allocate interface name from heap Itsuro Oda
2020-02-06 1:39 ` [dpdk-stable] [PATCH v3 2/4] net/vhost: delay vhost driver setup Itsuro Oda
2020-02-06 1:39 ` [dpdk-stable] [PATCH v3 3/4] net/vhost: make secondary probe complete Itsuro Oda
2020-02-06 1:39 ` [dpdk-stable] [PATCH v3 4/4] net/vhost: remove an unused member Itsuro Oda
2020-02-06 14:19 ` [dpdk-stable] [PATCH v3 0/4] make vhost PMD available for secondary processes Maxime Coquelin
2020-02-13 16:29 ` Maxime Coquelin
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