1 files changed, 38 insertions, 0 deletions

diff --git a/drivers/net/s2io.h b/drivers/net/s2io.h
index 68ae33651947..0a0b5b29d81e 100644
--- a/drivers/net/s2io.h
+++ b/drivers/net/s2io.h
@@ -78,6 +78,13 @@ static int debug_level = ERR_DBG;
 typedef struct {
         unsigned long long single_ecc_errs;
         unsigned long long double_ecc_errs;
+        /* LRO statistics */
+        unsigned long long clubbed_frms_cnt;
+        unsigned long long sending_both;
+        unsigned long long outof_sequence_pkts;
+        unsigned long long flush_max_pkts;
+        unsigned long long sum_avg_pkts_aggregated;
+        unsigned long long num_aggregations;
 } swStat_t;
 
 /* The statistics block of Xena */
@@ -680,6 +687,24 @@ struct msix_info_st {
         u64 data;
 };
 
+/* Data structure to represent a LRO session */
+typedef struct lro {
+        struct sk_buff  *parent;
+        u8              *l2h;
+        struct iphdr    *iph;
+        struct tcphdr   *tcph;
+        u32             tcp_next_seq;
+        u32             tcp_ack;
+        int             total_len;
+        int             frags_len;
+        int             sg_num;
+        int             in_use;
+        u16             window;
+        u32             cur_tsval;
+        u32             cur_tsecr;
+        u8              saw_ts;
+}lro_t;
+
 /* Structure representing one instance of the NIC */
 struct s2io_nic {
         int rxd_mode;
@@ -784,6 +809,13 @@ struct s2io_nic {
 #define XFRAME_II_DEVICE        2
         u8 device_type;
 
+#define MAX_LRO_SESSIONS        32
+        lro_t lro0_n[MAX_LRO_SESSIONS];
+        unsigned long   clubbed_frms_cnt;
+        unsigned long   sending_both;
+        u8              lro;
+        u16             lro_max_aggr_per_sess;
+
 #define INTA    0
 #define MSI     1
 #define MSI_X   2
@@ -937,4 +969,10 @@ static void s2io_card_down(nic_t *nic);
 static int s2io_card_up(nic_t *nic);
 static int get_xena_rev_id(struct pci_dev *pdev);
 static void restore_xmsi_data(nic_t *nic);
+
+static int s2io_club_tcp_session(u8 *buffer, u8 **tcp, u32 *tcp_len, lro_t **lro, RxD_t *rxdp, nic_t *sp);
+static void clear_lro_session(lro_t *lro);
+static void queue_rx_frame(struct sk_buff *skb);
+static void update_L3L4_header(nic_t *sp, lro_t *lro);
+static void lro_append_pkt(nic_t *sp, lro_t *lro, struct sk_buff *skb, u32 tcp_len);
 #endif                          /* _S2IO_H */