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igb: add support for in kernel LRO

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This patch adds support for the use of the inet_lro module to provide
software LRO support.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Alexander Duyck
2008-07-08 15:12:13 -07:00
committed by Jeff Garzik
parent bf36c1a004
commit d335252027
5 changed files with 147 additions and 9 deletions
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16
drivers/net/igb/igb.h
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@ -36,6 +36,12 @@
struct igb_adapter;
#ifdef CONFIG_IGB_LRO
#include <linux/inet_lro.h>
#define MAX_LRO_AGGR 32
#define MAX_LRO_DESCRIPTORS 8
#endif
/* Interrupt defines */
#define IGB_MAX_TX_CLEAN 72
@ -167,6 +173,10 @@ struct igb_ring {
int no_itr_adjust;
struct igb_queue_stats rx_stats;
struct napi_struct napi;
#ifdef CONFIG_IGB_LRO
struct net_lro_mgr lro_mgr;
bool lro_used;
#endif
};
};
@ -278,6 +288,12 @@ struct igb_adapter {
#ifdef CONFIG_NETDEVICES_MULTIQUEUE
struct igb_ring *multi_tx_table[IGB_MAX_TX_QUEUES];
#endif /* CONFIG_NETDEVICES_MULTIQUEUE */
#ifdef CONFIG_IGB_LRO
unsigned int lro_max_aggr;
unsigned int lro_aggregated;
unsigned int lro_flushed;
unsigned int lro_no_desc;
#endif
};
#define IGB_FLAG_HAS_MSI (1 << 0)