enic: Helper code for SRIOV proxy commands

This patch adds helper functions to use PF as proxy for SRIOV VF firmware
commands.

Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: Sujith Sankar <ssujith@cisco.com>
Signed-off-by: Christian Benvenuti <benve@cisco.com>
Signed-off-by: David Wang <dwang2@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 19 insertions, 0 deletions

diff --git a/drivers/net/ethernet/cisco/enic/enic_dev.h b/drivers/net/ethernet/cisco/enic/enic_dev.h
index ff8e87fdfc1d..1f83a4747ba0 100644
--- a/drivers/net/ethernet/cisco/enic/enic_dev.h
+++ b/drivers/net/ethernet/cisco/enic/enic_dev.h
@@ -19,6 +19,25 @@
 #ifndef _ENIC_DEV_H_
 #define _ENIC_DEV_H_
 
+#include "vnic_dev.h"
+
+/*
+ * Calls the devcmd function given by argument vnicdevcmdfn.
+ * If vf argument is valid, it proxies the devcmd
+ */
+#define ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnicdevcmdfn, ...) \
+        do { \
+                spin_lock(&enic->devcmd_lock); \
+                if (enic_is_valid_vf(enic, vf)) { \
+                        vnic_dev_cmd_proxy_by_index_start(enic->vdev, vf); \
+                        err = vnicdevcmdfn(enic->vdev, ##__VA_ARGS__); \
+                        vnic_dev_cmd_proxy_end(enic->vdev); \
+                } else { \
+                        err = vnicdevcmdfn(enic->vdev, ##__VA_ARGS__); \
+                } \
+                spin_unlock(&enic->devcmd_lock); \
+        } while (0)
+
 int enic_dev_fw_info(struct enic *enic, struct vnic_devcmd_fw_info **fw_info);
 int enic_dev_stats_dump(struct enic *enic, struct vnic_stats **vstats);
 int enic_dev_add_station_addr(struct enic *enic);