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[net-next,v4,1/7] netdev: introduce new NETIF_F_HW_SWITCH_OFFLOAD feature flag for switch device offloads

Message ID 1422600017-42393-2-git-send-email-roopa@cumulusnetworks.com
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Roopa Prabhu Jan. 30, 2015, 6:40 a.m. UTC 
From: Roopa Prabhu <roopa@cumulusnetworks.com>

This is a high level feature flag for all switch asic offloads

switch drivers set this flag on switch ports. Logical devices like
bridge, bonds, vxlans can inherit this flag from their slaves/ports.

The patch also adds the flag to NETIF_F_ONE_FOR_ALL, so that it gets
propagated to the upperdevices (bridges and bonds).

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
---
 include/linux/netdev_features.h |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
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Patch

diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h
index 8e30685..7d59dc6 100644
--- a/include/linux/netdev_features.h
+++ b/include/linux/netdev_features.h
@@ -66,6 +66,7 @@  enum {
 	NETIF_F_HW_VLAN_STAG_FILTER_BIT,/* Receive filtering on VLAN STAGs */
 	NETIF_F_HW_L2FW_DOFFLOAD_BIT,	/* Allow L2 Forwarding in Hardware */
 	NETIF_F_BUSY_POLL_BIT,		/* Busy poll */
+	NETIF_F_HW_SWITCH_OFFLOAD_BIT,  /* HW switch offload */
 
 	/*
 	 * Add your fresh new feature above and remember to update
@@ -124,6 +125,7 @@  enum {
 #define NETIF_F_HW_VLAN_STAG_TX	__NETIF_F(HW_VLAN_STAG_TX)
 #define NETIF_F_HW_L2FW_DOFFLOAD	__NETIF_F(HW_L2FW_DOFFLOAD)
 #define NETIF_F_BUSY_POLL	__NETIF_F(BUSY_POLL)
+#define NETIF_F_HW_SWITCH_OFFLOAD	__NETIF_F(HW_SWITCH_OFFLOAD)
 
 /* Features valid for ethtool to change */
 /* = all defined minus driver/device-class-related */
@@ -159,7 +161,9 @@  enum {
  */
 #define NETIF_F_ONE_FOR_ALL	(NETIF_F_GSO_SOFTWARE | NETIF_F_GSO_ROBUST | \
 				 NETIF_F_SG | NETIF_F_HIGHDMA |		\
-				 NETIF_F_FRAGLIST | NETIF_F_VLAN_CHALLENGED)
+				 NETIF_F_FRAGLIST | NETIF_F_VLAN_CHALLENGED | \
+				 NETIF_F_HW_SWITCH_OFFLOAD)
+
 /*
  * If one device doesn't support one of these features, then disable it
  * for all in netdev_increment_features.