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authorDhananjay Phadke <dhananjay@netxen.com>2009-07-26 20:07:40 +0000
committerDavid S. Miller <davem@davemloft.net>2009-07-27 10:57:33 -0700
commit1bcfd790c49341fcbdce9526a007c4e2b9d54c7c (patch)
tree7f1d8909e32a0b2b301a28c61ad4dccd8ab866f6 /drivers/net/netxen/netxen_nic.h
parent83ac51fa747c3a74372417629fcad4b110857b77 (diff)
netxen: refactor tso code
o move all tso / checksum offload code into netxen_tso_check(). o optimize the tso header copy into simple loop. o clean up unnecessary unions from cmd_desc_type0 struct. Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/netxen/netxen_nic.h')
-rw-r--r--drivers/net/netxen/netxen_nic.h49
1 files changed, 11 insertions, 38 deletions
diff --git a/drivers/net/netxen/netxen_nic.h b/drivers/net/netxen/netxen_nic.h
index 3368af0c129..3a4cbd5dcbd 100644
--- a/drivers/net/netxen/netxen_nic.h
+++ b/drivers/net/netxen/netxen_nic.h
@@ -316,56 +316,29 @@ struct netxen_ring_ctx {
cpu_to_le16(((_flags) & 0x7f) | (((_opcode) & 0x3f) << 7))
#define netxen_set_tx_frags_len(_desc, _frags, _len) \
- (_desc)->num_of_buffers_total_length = \
+ (_desc)->nfrags__length = \
cpu_to_le32(((_frags) & 0xff) | (((_len) & 0xffffff) << 8))
struct cmd_desc_type0 {
u8 tcp_hdr_offset; /* For LSO only */
u8 ip_hdr_offset; /* For LSO only */
- /* Bit pattern: 0-6 flags, 7-12 opcode, 13-15 unused */
- __le16 flags_opcode;
- /* Bit pattern: 0-7 total number of segments,
- 8-31 Total size of the packet */
- __le32 num_of_buffers_total_length;
- union {
- struct {
- __le32 addr_low_part2;
- __le32 addr_high_part2;
- };
- __le64 addr_buffer2;
- };
+ __le16 flags_opcode; /* 15:13 unused, 12:7 opcode, 6:0 flags */
+ __le32 nfrags__length; /* 31:8 total len, 7:0 frag count */
+
+ __le64 addr_buffer2;
- __le16 reference_handle; /* changed to u16 to add mss */
- __le16 mss; /* passed by NDIS_PACKET for LSO */
- /* Bit pattern 0-3 port, 0-3 ctx id */
- u8 port_ctxid;
+ __le16 reference_handle;
+ __le16 mss;
+ u8 port_ctxid; /* 7:4 ctxid 3:0 port */
u8 total_hdr_length; /* LSO only : MAC+IP+TCP Hdr size */
__le16 conn_id; /* IPSec offoad only */
- union {
- struct {
- __le32 addr_low_part3;
- __le32 addr_high_part3;
- };
- __le64 addr_buffer3;
- };
- union {
- struct {
- __le32 addr_low_part1;
- __le32 addr_high_part1;
- };
- __le64 addr_buffer1;
- };
+ __le64 addr_buffer3;
+ __le64 addr_buffer1;
__le16 buffer_length[4];
- union {
- struct {
- __le32 addr_low_part4;
- __le32 addr_high_part4;
- };
- __le64 addr_buffer4;
- };
+ __le64 addr_buffer4;
__le64 unused;