[dpdk-dev] [PATCH v2 03/13] ethdev: add deferred intermediate device state

[Gaetan Rivet <gaetan.rivet@6wind.com>]

This device state means that the device is managed externally, by
whichever party has set this state (PMD or application).

Note: this new device state is only an information. The related device
structure and operators are still valid and can be used normally.

It is however made private by device management helpers within ethdev,
making the device invisible to applications.

Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
---
 lib/librte_ether/rte_ethdev.c | 3 ++-
 lib/librte_ether/rte_ethdev.h | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 61a63b7..7824f87 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -382,7 +382,8 @@ int
 rte_eth_dev_is_valid_port(uint8_t port_id)
 {
 	if (port_id >= RTE_MAX_ETHPORTS ||
-	    rte_eth_devices[port_id].state != RTE_ETH_DEV_ATTACHED)
+	    (rte_eth_devices[port_id].state != RTE_ETH_DEV_ATTACHED &&
+	     rte_eth_devices[port_id].state != RTE_ETH_DEV_DEFERRED))
 		return 0;
 	else
 		return 1;
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index f01d140..ae1e9e6 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -1629,6 +1629,7 @@ struct rte_eth_rxtx_callback {
 enum rte_eth_dev_state {
 	RTE_ETH_DEV_UNUSED = 0,
 	RTE_ETH_DEV_ATTACHED,
+	RTE_ETH_DEV_DEFERRED,
 };
 
 /**
-- 
2.1.4