[PATCH v6 2/8] ethdev: add switch identifier parameter to port

[Declan Doherty <declan.doherty@intel.com>]

Introduces a new port attribute to ethdev port's which denotes the
switch domain a port belongs to. By default all port's switch
identifiers are the their port_id. Ports which share a common switch
domain are configured with the same switch id.

Signed-off-by: Declan Doherty <declan.doherty@intel.com>
---
 app/test-pmd/config.c              | 1 +
 lib/librte_ether/rte_ethdev.c      | 3 +++
 lib/librte_ether/rte_ethdev.h      | 1 +
 lib/librte_ether/rte_ethdev_core.h | 1 +
 4 files changed, 6 insertions(+)

diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index 4bb255c62..e12f8c515 100644
--- a/app/test-pmd/config.c
+++ b/app/test-pmd/config.c
@@ -517,6 +517,7 @@ port_infos_display(portid_t port_id)
 	printf("Min possible number of TXDs per queue: %hu\n",
 		dev_info.tx_desc_lim.nb_min);
 	printf("TXDs number alignment: %hu\n", dev_info.tx_desc_lim.nb_align);
+	printf("Switch Id: %u\n", dev_info.switch_id);
 }
 
 void
diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 23857c91f..f32d18cad 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -290,6 +290,8 @@ rte_eth_dev_allocate(const char *name)
 	eth_dev = eth_dev_get(port_id);
 	snprintf(eth_dev->data->name, sizeof(eth_dev->data->name), "%s", name);
 	eth_dev->data->port_id = port_id;
+	eth_dev->data->switch_id = port_id;
+	/**< Default switch_id is the port_id of the device */
 	eth_dev->data->mtu = ETHER_MTU;
 
 unlock:
@@ -2395,6 +2397,7 @@ rte_eth_dev_info_get(uint16_t port_id, struct rte_eth_dev_info *dev_info)
 	dev_info->driver_name = dev->device->driver->name;
 	dev_info->nb_rx_queues = dev->data->nb_rx_queues;
 	dev_info->nb_tx_queues = dev->data->nb_tx_queues;
+	dev_info->switch_id = dev->data->switch_id;
 }
 
 int
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index 036153306..dced4fc41 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -1029,6 +1029,7 @@ struct rte_eth_dev_info {
 	/** Configured number of rx/tx queues */
 	uint16_t nb_rx_queues; /**< Number of RX queues. */
 	uint16_t nb_tx_queues; /**< Number of TX queues. */
+	uint16_t switch_id; /**< Switch Domain Id */
 };
 
 /**
diff --git a/lib/librte_ether/rte_ethdev_core.h b/lib/librte_ether/rte_ethdev_core.h
index e5681e466..caed7a4e6 100644
--- a/lib/librte_ether/rte_ethdev_core.h
+++ b/lib/librte_ether/rte_ethdev_core.h
@@ -585,6 +585,7 @@ struct rte_eth_dev_data {
 	struct ether_addr* hash_mac_addrs;
 	/** Device Ethernet MAC addresses of hash filtering. */
 	uint16_t port_id;           /**< Device [external] port identifier. */
+	uint16_t switch_id;	    /**< Switch which port is associated with */
 	__extension__
 	uint8_t promiscuous   : 1, /**< RX promiscuous mode ON(1) / OFF(0). */
 		scattered_rx : 1,  /**< RX of scattered packets is ON(1) / OFF(0) */
-- 
2.14.3