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Message-Id: <1236991926-17892-5-git-send-email-dhananjay@netxen.com>
Date: Fri, 13 Mar 2009 17:52:04 -0700
From: Dhananjay Phadke <dhananjay@...xen.com>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net
Subject: [patch next 4/6] netxen: remove old lro code
Signed-off-by: Dhananjay Phadke <dhananjay@...xen.com>
---
drivers/net/netxen/netxen_nic.h | 3 -
drivers/net/netxen/netxen_nic_init.c | 74 +++++++++++----------------------
2 files changed, 25 insertions(+), 52 deletions(-)
diff --git a/drivers/net/netxen/netxen_nic.h b/drivers/net/netxen/netxen_nic.h
index f00efe8..56fad22 100644
--- a/drivers/net/netxen/netxen_nic.h
+++ b/drivers/net/netxen/netxen_nic.h
@@ -766,9 +766,6 @@ struct netxen_rx_buffer {
u64 dma;
u16 ref_handle;
u16 state;
- u32 lro_expected_frags;
- u32 lro_current_frags;
- u32 lro_length;
};
/* Board types */
diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c
index d722589..1b8f79f 100644
--- a/drivers/net/netxen/netxen_nic_init.c
+++ b/drivers/net/netxen/netxen_nic_init.c
@@ -820,66 +820,37 @@ static struct sk_buff *netxen_process_rxbuf(struct netxen_adapter *adapter,
no_skb:
buffer->state = NETXEN_BUFFER_FREE;
- buffer->lro_current_frags = 0;
- buffer->lro_expected_frags = 0;
list_add_tail(&buffer->list, &rds_ring->free_list);
return skb;
}
-static void netxen_process_rcv(struct netxen_adapter *adapter,
- struct status_desc *desc)
+static void
+netxen_process_rcv(struct netxen_adapter *adapter,
+ int ring, int index, int length, int cksum, int pkt_offset)
{
struct net_device *netdev = adapter->netdev;
- u64 sts_data = le64_to_cpu(desc->status_desc_data);
- int index = netxen_get_sts_refhandle(sts_data);
struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
struct netxen_rx_buffer *buffer;
struct sk_buff *skb;
- u32 length = netxen_get_sts_totallength(sts_data);
- u32 desc_ctx;
- u16 pkt_offset = 0, cksum;
- struct nx_host_rds_ring *rds_ring;
+ struct nx_host_rds_ring *rds_ring = &recv_ctx->rds_rings[ring];
- desc_ctx = netxen_get_sts_type(sts_data);
- if (unlikely(desc_ctx >= adapter->max_rds_rings))
- return;
-
- rds_ring = &recv_ctx->rds_rings[desc_ctx];
if (unlikely(index > rds_ring->num_desc))
return;
buffer = &rds_ring->rx_buf_arr[index];
- if (desc_ctx == RCV_RING_LRO) {
- buffer->lro_current_frags++;
- if (netxen_get_sts_desc_lro_last_frag(desc)) {
- buffer->lro_expected_frags =
- netxen_get_sts_desc_lro_cnt(desc);
- buffer->lro_length = length;
- }
- if (buffer->lro_current_frags != buffer->lro_expected_frags) {
- return;
- }
- }
-
- cksum = netxen_get_sts_status(sts_data);
skb = netxen_process_rxbuf(adapter, rds_ring, index, cksum);
if (!skb)
return;
- if (desc_ctx == RCV_RING_LRO) {
- /* True length was only available on the last pkt */
- skb_put(skb, buffer->lro_length);
- } else {
- if (length > rds_ring->skb_size)
- skb_put(skb, rds_ring->skb_size);
- else
- skb_put(skb, length);
+ if (length > rds_ring->skb_size)
+ skb_put(skb, rds_ring->skb_size);
+ else
+ skb_put(skb, length);
- pkt_offset = netxen_get_sts_pkt_offset(sts_data);
- if (pkt_offset)
- skb_pull(skb, pkt_offset);
- }
+
+ if (pkt_offset)
+ skb_pull(skb, pkt_offset);
skb->protocol = eth_type_trans(skb, netdev);
@@ -896,9 +867,9 @@ netxen_process_rcv_ring(struct netxen_adapter *adapter, int max)
struct status_desc *desc_head = recv_ctx->rcv_status_desc_head;
struct status_desc *desc;
u32 consumer = recv_ctx->status_rx_consumer;
- int count = 0, ring;
+ int count = 0;
u64 sts_data;
- u16 opcode;
+ int opcode, ring, index, length, cksum, pkt_offset;
while (count < max) {
desc = &desc_head[consumer];
@@ -907,9 +878,19 @@ netxen_process_rcv_ring(struct netxen_adapter *adapter, int max)
if (!(sts_data & STATUS_OWNER_HOST))
break;
+ ring = netxen_get_sts_type(sts_data);
+ if (ring > RCV_RING_JUMBO)
+ continue;
+
opcode = netxen_get_sts_opcode(sts_data);
- netxen_process_rcv(adapter, desc);
+ index = netxen_get_sts_refhandle(sts_data);
+ length = netxen_get_sts_totallength(sts_data);
+ cksum = netxen_get_sts_status(sts_data);
+ pkt_offset = netxen_get_sts_pkt_offset(sts_data);
+
+ netxen_process_rcv(adapter, ring, index,
+ length, cksum, pkt_offset);
desc->status_desc_data = cpu_to_le64(STATUS_OWNER_PHANTOM);
@@ -1019,7 +1000,6 @@ netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid)
producer = rds_ring->producer;
head = &rds_ring->free_list;
- /* We can start writing rx descriptors into the phantom memory. */
while (!list_empty(head)) {
skb = dev_alloc_skb(rds_ring->skb_size);
@@ -1053,10 +1033,9 @@ netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid)
producer = get_next_index(producer, rds_ring->num_desc);
}
- /* if we did allocate buffers, then write the count to Phantom */
+
if (count) {
rds_ring->producer = producer;
- /* Window = 1 */
adapter->pci_write_normalize(adapter,
rds_ring->crb_rcv_producer,
(producer-1) & (rds_ring->num_desc-1));
@@ -1099,7 +1078,6 @@ netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter, uint32_t ringid)
producer = rds_ring->producer;
head = &rds_ring->free_list;
- /* We can start writing rx descriptors into the phantom memory. */
while (!list_empty(head)) {
skb = dev_alloc_skb(rds_ring->skb_size);
@@ -1134,10 +1112,8 @@ netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter, uint32_t ringid)
producer = get_next_index(producer, rds_ring->num_desc);
}
- /* if we did allocate buffers, then write the count to Phantom */
if (count) {
rds_ring->producer = producer;
- /* Window = 1 */
adapter->pci_write_normalize(adapter,
rds_ring->crb_rcv_producer,
(producer - 1) & (rds_ring->num_desc - 1));
--
1.6.0.2
--
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