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authorJeff Garzik <jeff@garzik.org>2006-03-02 14:26:30 -0500
committerJeff Garzik <jeff@garzik.org>2006-03-02 14:26:30 -0500
commit2ade43618b0aee83a50b344171d33d85c73d01b1 (patch)
tree0a49fe46159a6ef66098a4f37935412f4f226f4c /drivers/net/s2io.h
parent75e47b36004d136edff68295420424cba3a5ccd0 (diff)
parent79dc190147f8a87718fe72928d5ceb58e09acdb9 (diff)
downloadlinux-2ade43618b0aee83a50b344171d33d85c73d01b1.tar.bz2
Merge branch 'lro'
Diffstat (limited to 'drivers/net/s2io.h')
-rw-r--r--drivers/net/s2io.h38
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 */