Update ENIC driver patches for DPDK 2.2.0

This includes all patches in ENIC driver which are up-streamed to DPDK
to improve RX performance, fix buffer/error handling and interoperation
with link bonding PMD library.

Change-Id: Id4c71a350d5234834951f9261c69db5476ba396b
Signed-off-by: John Lo <loj@cisco.com>

1 files changed, 71 insertions, 0 deletions

diff --git a/dpdk/dpdk-2.2.0_patches/0022-bonding-fix-bond-link-detect-in-non-interrupt-mode.patch b/dpdk/dpdk-2.2.0_patches/0022-bonding-fix-bond-link-detect-in-non-interrupt-mode.patch
new file mode 100644
index 00000000000..9cb56d2d499
--- /dev/null
+++ b/dpdk/dpdk-2.2.0_patches/0022-bonding-fix-bond-link-detect-in-non-interrupt-mode.patch
@@ -0,0 +1,71 @@
+commit 65bcf215aae2e0b9935557e237af054ad0860bad
+Author: Nelson Escobar <neescoba@cisco.com>
+Date:   Tue Mar 22 13:42:08 2016 -0700
+
+    bonding: fix bond link detect in non-interrupt mode
+    
+    Stopping then re-starting a bond interface containing slaves that
+    used polling for link detection caused the bond to think all slave
+    links were down and inactive.
+    
+    Move the start of the polling for link from slave_add() to
+    bond_ethdev_start() and in bond_ethdev_stop() make sure we clear
+    the last_link_status of the slaves.
+    
+    Signed-off-by: Nelson Escobar <neescoba@cisco.com>
+    Signed-off-by: John Daley <johndale@cisco.com>
+
+diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c b/drivers/net/bonding/rte_eth_bond_pmd.c
+index fb26d35..f0960c6 100644
+--- a/drivers/net/bonding/rte_eth_bond_pmd.c
++++ b/drivers/net/bonding/rte_eth_bond_pmd.c
+@@ -1454,18 +1454,11 @@ slave_add(struct bond_dev_private *internals,
+ 	slave_details->port_id = slave_eth_dev->data->port_id;
+ 	slave_details->last_link_status = 0;
+ 
+-	/* If slave device doesn't support interrupts then we need to enabled
+-	 * polling to monitor link status */
++	/* Mark slave devices that don't support interrupts so we can
++	 * compensate when we start the bond
++	 */
+ 	if (!(slave_eth_dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC)) {
+ 		slave_details->link_status_poll_enabled = 1;
+-
+-		if (!internals->link_status_polling_enabled) {
+-			internals->link_status_polling_enabled = 1;
+-
+-			rte_eal_alarm_set(internals->link_status_polling_interval_ms * 1000,
+-					bond_ethdev_slave_link_status_change_monitor,
+-					(void *)&rte_eth_devices[internals->port_id]);
+-		}
+ 	}
+ 
+ 	slave_details->link_status_wait_to_complete = 0;
+@@ -1550,6 +1543,18 @@ bond_ethdev_start(struct rte_eth_dev *eth_dev)
+ 					eth_dev->data->port_id, internals->slaves[i].port_id);
+ 			return -1;
+ 		}
++		/* We will need to poll for link status if any slave doesn't
++		 * support interrupts
++		 */
++		if (internals->slaves[i].link_status_poll_enabled)
++			internals->link_status_polling_enabled = 1;
++	}
++	/* start polling if needed */
++	if (internals->link_status_polling_enabled) {
++		rte_eal_alarm_set(
++			internals->link_status_polling_interval_ms * 1000,
++			bond_ethdev_slave_link_status_change_monitor,
++			(void *)&rte_eth_devices[internals->port_id]);
+ 	}
+ 
+ 	if (internals->user_defined_primary_port)
+@@ -1622,6 +1627,8 @@ bond_ethdev_stop(struct rte_eth_dev *eth_dev)
+ 
+ 	internals->active_slave_count = 0;
+ 	internals->link_status_polling_enabled = 0;
++	for (i = 0; i < internals->slave_count; i++)
++		internals->slaves[i].last_link_status = 0;
+ 
+ 	eth_dev->data->dev_link.link_status = 0;
+ 	eth_dev->data->dev_started = 0;