Merge branch 'ibmvnic-Updated-reset-handler-andcode-fixes'

Nathan Fontenot says:

====================
ibmvnic: Updated reset handler and code fixes

This set of patches multiple code fixes and a new rest handler
for the ibmvnic driver. In order to implement the new reset handler
for the ibmvnic driver resource initialization needed to be moved to
its own routine, a state variable is introduced to replace the
various is_* flags in the driver, and a new routine to handle the
assorted reasons the driver can be reset.

v4 updates:

Patch 3/11: Corrected trailing whitespace
Patch 7/11: Corrected trailing whitespace

v3 updates:

Patch 10/11: Correct patch subject line to be a description of the patch.

v2 updates:

Patch 11/11: Use __netif_subqueue_stopped() instead of
netif_subqueue_stopped() to avoid possible use of an un-initialized
skb variable.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 25 insertions, 6 deletions

diff --git a/drivers/net/ethernet/ibm/ibmvnic.h b/drivers/net/ethernet/ibm/ibmvnic.h
index a69979f6f19d..4702b48cfa44 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.h
+++ b/drivers/net/ethernet/ibm/ibmvnic.h
@@ -913,6 +913,25 @@ struct ibmvnic_error_buff {
 	__be32 error_id;
 };
 
+enum vnic_state {VNIC_PROBING = 1,
+		 VNIC_PROBED,
+		 VNIC_OPENING,
+		 VNIC_OPEN,
+		 VNIC_CLOSING,
+		 VNIC_CLOSED,
+		 VNIC_REMOVING,
+		 VNIC_REMOVED};
+
+enum ibmvnic_reset_reason {VNIC_RESET_FAILOVER = 1,
+			   VNIC_RESET_MOBILITY,
+			   VNIC_RESET_FATAL,
+			   VNIC_RESET_TIMEOUT};
+
+struct ibmvnic_rwi {
+	enum ibmvnic_reset_reason reset_reason;
+	struct list_head list;
+};
+
 struct ibmvnic_adapter {
 	struct vio_dev *vdev;
 	struct net_device *netdev;
@@ -922,7 +941,6 @@ struct ibmvnic_adapter {
 	dma_addr_t ip_offload_tok;
 	struct ibmvnic_control_ip_offload_buffer ip_offload_ctrl;
 	dma_addr_t ip_offload_ctrl_tok;
-	bool migrated;
 	u32 msg_enable;
 
 	/* Statistics */
@@ -962,7 +980,6 @@ struct ibmvnic_adapter {
 	u64 promisc;
 
 	struct ibmvnic_tx_pool *tx_pool;
-	bool closing;
 	struct completion init_done;
 	int init_done_rc;
 
@@ -1007,9 +1024,11 @@ struct ibmvnic_adapter {
 	__be64 tx_rx_desc_req;
 	u8 map_id;
 
-	struct work_struct vnic_crq_init;
-	struct work_struct ibmvnic_xport;
 	struct tasklet_struct tasklet;
-	bool failover;
-	bool is_closed;
+	enum vnic_state state;
+	enum ibmvnic_reset_reason reset_reason;
+	struct mutex reset_lock, rwi_lock;
+	struct list_head rwi_list;
+	struct work_struct ibmvnic_reset;
+	bool resetting;
 };