[dpdk-dev] [PATCH 1/2] eventdev: fix eth Rx adapter hotplug incompatibility

[dpdk-dev] [PATCH 1/2] eventdev: fix eth Rx adapter hotplug incompatibility

[Nikhil Rao]

Use RTE_MAX_ETHPORTS instead of rte_eth_dev_count_total()
when allocating eth Rx adapter's per-eth device data structure
to account for hotplugged devices.

Fixes: 9c38b704d280 ("eventdev: add eth Rx adapter implementation")
Cc: stable@dpdk.org
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
---
 lib/librte_eventdev/rte_event_eth_rx_adapter.c | 5 ++---
 lib/librte_eventdev/rte_event_eth_rx_adapter.h | 4 ----
 2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/lib/librte_eventdev/rte_event_eth_rx_adapter.c b/lib/librte_eventdev/rte_event_eth_rx_adapter.c
index f5e5a0b..870ac8c 100644
--- a/lib/librte_eventdev/rte_event_eth_rx_adapter.c
+++ b/lib/librte_eventdev/rte_event_eth_rx_adapter.c
@@ -1998,8 +1998,7 @@ static int rxa_sw_add(struct rte_event_eth_rx_adapter *rx_adapter,
 	rx_adapter->id = id;
 	strcpy(rx_adapter->mem_name, mem_name);
 	rx_adapter->eth_devices = rte_zmalloc_socket(rx_adapter->mem_name,
-					/* FIXME: incompatible with hotplug */
-					rte_eth_dev_count_total() *
+					RTE_MAX_ETHPORTS *
 					sizeof(struct eth_device_info), 0,
 					socket_id);
 	rte_convert_rss_key((const uint32_t *)default_rss_key,
@@ -2012,7 +2011,7 @@ static int rxa_sw_add(struct rte_event_eth_rx_adapter *rx_adapter,
 		return -ENOMEM;
 	}
 	rte_spinlock_init(&rx_adapter->rx_lock);
-	RTE_ETH_FOREACH_DEV(i)
+	for (i = 0; i < RTE_MAX_ETHPORTS; i++)
 		rx_adapter->eth_devices[i].dev = &rte_eth_devices[i];
 
 	event_eth_rx_adapter[id] = rx_adapter;
diff --git a/lib/librte_eventdev/rte_event_eth_rx_adapter.h b/lib/librte_eventdev/rte_event_eth_rx_adapter.h
index 332ee21..863b72a 100644
--- a/lib/librte_eventdev/rte_event_eth_rx_adapter.h
+++ b/lib/librte_eventdev/rte_event_eth_rx_adapter.h
@@ -76,10 +76,6 @@
  * rte_event_eth_rx_adapter_cb_register() function allows the
  * application to register a callback that selects which packets to enqueue
  * to the event device.
- *
- * Note:
- * 1) Devices created after an instance of rte_event_eth_rx_adapter_create
- *  should be added to a new instance of the rx adapter.
  */
 
 #ifdef __cplusplus
-- 
1.8.3.1

[dpdk-dev] [PATCH 2/2] test/eventdev: remove eth Rx adapter vdev workaround

[Nikhil Rao]

eth Rx adapter has been updated to support hotplugged
devices, devices created after adapter creation can now be
added to the adapter.

Update the adapter_multi_eth_add_del
test case to create the adapter as part of test setup
instead of creating it after creating vdevs.

Fixes: 2a9c83ae3b2e ("test/eventdev: add multi-ports test")
Cc: vipin.varghese@intel.com
Cc: stable@dpdk.org
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
---
 test/test/test_event_eth_rx_adapter.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/test/test/test_event_eth_rx_adapter.c b/test/test/test_event_eth_rx_adapter.c
index 4cca77f..d6d137e 100644
--- a/test/test/test_event_eth_rx_adapter.c
+++ b/test/test/test_event_eth_rx_adapter.c
@@ -489,9 +489,6 @@ struct event_eth_rx_adapter_test_params {
 	err = init_ports(rte_eth_dev_count_total());
 	TEST_ASSERT(err == 0, "Port initialization failed err %d\n", err);
 
-	/* creating new instance for all newly added eth devices */
-	adapter_create();
-
 	/* eth_rx_adapter_queue_add for n ports */
 	port_index = 0;
 	for (; port_index < rte_eth_dev_count_total(); port_index += 1) {
@@ -509,8 +506,6 @@ struct event_eth_rx_adapter_test_params {
 		TEST_ASSERT(err == 0, "Expected 0 got %d", err);
 	}
 
-	adapter_free();
-
 	return TEST_SUCCESS;
 }
 
@@ -675,7 +670,8 @@ struct event_eth_rx_adapter_test_params {
 		TEST_CASE_ST(NULL, NULL, adapter_create_free),
 		TEST_CASE_ST(adapter_create, adapter_free,
 					adapter_queue_add_del),
-		TEST_CASE_ST(NULL, NULL, adapter_multi_eth_add_del),
+		TEST_CASE_ST(adapter_create, adapter_free,
+					adapter_multi_eth_add_del),
 		TEST_CASE_ST(adapter_create, adapter_free, adapter_start_stop),
 		TEST_CASE_ST(adapter_create, adapter_free, adapter_stats),
 		TEST_CASES_END() /**< NULL terminate unit test array */
-- 
1.8.3.1

Re: [dpdk-dev] [PATCH 1/2] eventdev: fix eth Rx adapter hotplug incompatibility

[Jerin Jacob]

-----Original Message-----
> Date: Thu, 6 Sep 2018 14:41:42 +0530
> From: Nikhil Rao <nikhil.rao@intel.com>
> To: jerin.jacob@caviumnetworks.com
> CC: dev@dpdk.org, Nikhil Rao <nikhil.rao@intel.com>, stable@dpdk.org
> Subject: [PATCH 1/2] eventdev: fix eth Rx adapter hotplug incompatibility
> X-Mailer: git-send-email 1.8.3.1
> 
> 
> Use RTE_MAX_ETHPORTS instead of rte_eth_dev_count_total()
> when allocating eth Rx adapter's per-eth device data structure
> to account for hotplugged devices.
> 
> Fixes: 9c38b704d280 ("eventdev: add eth Rx adapter implementation")
> Cc: stable@dpdk.org
> Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>

Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>


> ---
>  lib/librte_eventdev/rte_event_eth_rx_adapter.c | 5 ++---
>  lib/librte_eventdev/rte_event_eth_rx_adapter.h | 4 ----
>  2 files changed, 2 insertions(+), 7 deletions(-)
> 
> diff --git a/lib/librte_eventdev/rte_event_eth_rx_adapter.c b/lib/librte_eventdev/rte_event_eth_rx_adapter.c
> index f5e5a0b..870ac8c 100644
> --- a/lib/librte_eventdev/rte_event_eth_rx_adapter.c
> +++ b/lib/librte_eventdev/rte_event_eth_rx_adapter.c
> @@ -1998,8 +1998,7 @@ static int rxa_sw_add(struct rte_event_eth_rx_adapter *rx_adapter,
>         rx_adapter->id = id;
>         strcpy(rx_adapter->mem_name, mem_name);
>         rx_adapter->eth_devices = rte_zmalloc_socket(rx_adapter->mem_name,
> -                                       /* FIXME: incompatible with hotplug */
> -                                       rte_eth_dev_count_total() *
> +                                       RTE_MAX_ETHPORTS *
>                                         sizeof(struct eth_device_info), 0,
>                                         socket_id);
>         rte_convert_rss_key((const uint32_t *)default_rss_key,
> @@ -2012,7 +2011,7 @@ static int rxa_sw_add(struct rte_event_eth_rx_adapter *rx_adapter,
>                 return -ENOMEM;
>         }
>         rte_spinlock_init(&rx_adapter->rx_lock);
> -       RTE_ETH_FOREACH_DEV(i)
> +       for (i = 0; i < RTE_MAX_ETHPORTS; i++)
>                 rx_adapter->eth_devices[i].dev = &rte_eth_devices[i];
> 
>         event_eth_rx_adapter[id] = rx_adapter;
> diff --git a/lib/librte_eventdev/rte_event_eth_rx_adapter.h b/lib/librte_eventdev/rte_event_eth_rx_adapter.h
> index 332ee21..863b72a 100644
> --- a/lib/librte_eventdev/rte_event_eth_rx_adapter.h
> +++ b/lib/librte_eventdev/rte_event_eth_rx_adapter.h
> @@ -76,10 +76,6 @@
>   * rte_event_eth_rx_adapter_cb_register() function allows the
>   * application to register a callback that selects which packets to enqueue
>   * to the event device.
> - *
> - * Note:
> - * 1) Devices created after an instance of rte_event_eth_rx_adapter_create
> - *  should be added to a new instance of the rx adapter.
>   */
> 
>  #ifdef __cplusplus
> --
> 1.8.3.1
> 

Re: [dpdk-dev] [PATCH 2/2] test/eventdev: remove eth Rx adapter vdev workaround

[Jerin Jacob]

-----Original Message-----
> Date: Thu, 6 Sep 2018 14:41:43 +0530
> From: Nikhil Rao <nikhil.rao@intel.com>
> To: jerin.jacob@caviumnetworks.com
> CC: dev@dpdk.org, Nikhil Rao <nikhil.rao@intel.com>,
>  vipin.varghese@intel.com, stable@dpdk.org
> Subject: [PATCH 2/2] test/eventdev: remove eth Rx adapter vdev workaround
> X-Mailer: git-send-email 1.8.3.1
> 
> 
> eth Rx adapter has been updated to support hotplugged
> devices, devices created after adapter creation can now be
> added to the adapter.
> 
> Update the adapter_multi_eth_add_del
> test case to create the adapter as part of test setup
> instead of creating it after creating vdevs.
> 
> Fixes: 2a9c83ae3b2e ("test/eventdev: add multi-ports test")
> Cc: vipin.varghese@intel.com
> Cc: stable@dpdk.org
> Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>


Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>

> ---
>  test/test/test_event_eth_rx_adapter.c | 8 ++------
>  1 file changed, 2 insertions(+), 6 deletions(-)
> 
> diff --git a/test/test/test_event_eth_rx_adapter.c b/test/test/test_event_eth_rx_adapter.c
> index 4cca77f..d6d137e 100644
> --- a/test/test/test_event_eth_rx_adapter.c
> +++ b/test/test/test_event_eth_rx_adapter.c
> @@ -489,9 +489,6 @@ struct event_eth_rx_adapter_test_params {
>         err = init_ports(rte_eth_dev_count_total());
>         TEST_ASSERT(err == 0, "Port initialization failed err %d\n", err);
> 
> -       /* creating new instance for all newly added eth devices */
> -       adapter_create();
> -
>         /* eth_rx_adapter_queue_add for n ports */
>         port_index = 0;
>         for (; port_index < rte_eth_dev_count_total(); port_index += 1) {
> @@ -509,8 +506,6 @@ struct event_eth_rx_adapter_test_params {
>                 TEST_ASSERT(err == 0, "Expected 0 got %d", err);
>         }
> 
> -       adapter_free();
> -
>         return TEST_SUCCESS;
>  }
> 
> @@ -675,7 +670,8 @@ struct event_eth_rx_adapter_test_params {
>                 TEST_CASE_ST(NULL, NULL, adapter_create_free),
>                 TEST_CASE_ST(adapter_create, adapter_free,
>                                         adapter_queue_add_del),
> -               TEST_CASE_ST(NULL, NULL, adapter_multi_eth_add_del),
> +               TEST_CASE_ST(adapter_create, adapter_free,
> +                                       adapter_multi_eth_add_del),
>                 TEST_CASE_ST(adapter_create, adapter_free, adapter_start_stop),
>                 TEST_CASE_ST(adapter_create, adapter_free, adapter_stats),
>                 TEST_CASES_END() /**< NULL terminate unit test array */
> --
> 1.8.3.1
> 

Re: [dpdk-dev] [PATCH 1/2] eventdev: fix eth Rx adapter hotplug incompatibility

[Jerin Jacob]

-----Original Message-----
> Date: Thu, 6 Sep 2018 14:41:42 +0530
> From: Nikhil Rao <nikhil.rao@intel.com>
> To: jerin.jacob@caviumnetworks.com
> CC: dev@dpdk.org, Nikhil Rao <nikhil.rao@intel.com>, stable@dpdk.org
> Subject: [PATCH 1/2] eventdev: fix eth Rx adapter hotplug incompatibility
> X-Mailer: git-send-email 1.8.3.1
> 
> 
> Use RTE_MAX_ETHPORTS instead of rte_eth_dev_count_total()
> when allocating eth Rx adapter's per-eth device data structure
> to account for hotplugged devices.
> 
> Fixes: 9c38b704d280 ("eventdev: add eth Rx adapter implementation")
> Cc: stable@dpdk.org
> Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>

Applied this series to dpdk-next-eventdev/master. Thanks.