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authorDhananjay Phadke <dhananjay@qlogic.com>2009-09-03 13:10:53 +0000
committerDavid S. Miller <davem@davemloft.net>2009-09-03 20:01:56 -0700
commitbc75e5bfad2a6d24fc5a9885a2f6b93f82c6c5f1 (patch)
tree52c4b697f034607cc6cc3b8505a26819cffc572e
parentd4ab88194e982a0d213000a75475d3e76b2626f0 (diff)
netxen: fix lro buffer allocation
Alloc 12k skbuffs so that firmware can aggregate more packets into one buffer. This doesn't raise memory consumption since 9k skbs use 16k slab cache anyway. Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/netxen/netxen_nic.h1
-rw-r--r--drivers/net/netxen/netxen_nic_init.c8
2 files changed, 7 insertions, 2 deletions
diff --git a/drivers/net/netxen/netxen_nic.h b/drivers/net/netxen/netxen_nic.h
index 224a7469131..ede2fa7477a 100644
--- a/drivers/net/netxen/netxen_nic.h
+++ b/drivers/net/netxen/netxen_nic.h
@@ -149,6 +149,7 @@
#define NX_P2_RX_JUMBO_BUF_MAX_LEN (NX_MAX_ETHERHDR + P2_MAX_MTU)
#define NX_P3_RX_JUMBO_BUF_MAX_LEN (NX_MAX_ETHERHDR + P3_MAX_MTU)
#define NX_CT_DEFAULT_RX_BUF_LEN 2048
+#define NX_LRO_BUFFER_EXTRA 2048
#define NX_RX_LRO_BUFFER_LENGTH (8060)
diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c
index 8d4aa6f74bf..04e36f2b1a9 100644
--- a/drivers/net/netxen/netxen_nic_init.c
+++ b/drivers/net/netxen/netxen_nic_init.c
@@ -265,6 +265,10 @@ int netxen_alloc_sw_resources(struct netxen_adapter *adapter)
else
rds_ring->dma_size =
NX_P2_RX_JUMBO_BUF_MAX_LEN;
+
+ if (adapter->capabilities & NX_CAP0_HW_LRO)
+ rds_ring->dma_size += NX_LRO_BUFFER_EXTRA;
+
rds_ring->skb_size =
rds_ring->dma_size + NET_IP_ALIGN;
break;
@@ -1217,6 +1221,7 @@ netxen_process_rcv(struct netxen_adapter *adapter,
if (pkt_offset)
skb_pull(skb, pkt_offset);
+ skb->truesize = skb->len + sizeof(struct sk_buff);
skb->protocol = eth_type_trans(skb, netdev);
napi_gro_receive(&sds_ring->napi, skb);
@@ -1278,8 +1283,7 @@ netxen_process_lro(struct netxen_adapter *adapter,
skb_put(skb, lro_length + data_offset);
- skb->truesize = (skb->len + sizeof(struct sk_buff) +
- ((unsigned long)skb->data - (unsigned long)skb->head));
+ skb->truesize = skb->len + sizeof(struct sk_buff) + skb_headroom(skb);
skb_pull(skb, l2_hdr_offset);
skb->protocol = eth_type_trans(skb, netdev);