xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

netxen: refactor tso code

Browse Source 
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>
This commit is contained in:
Dhananjay Phadke
2009-07-26 20:07:40 +00:00
committed by David S. Miller
parent 83ac51fa74
commit 1bcfd790c4
2 changed files with 84 additions and 119 deletions
Download Patch File Download Diff File Expand all files Collapse all files

49
drivers/net/netxen/netxen_nic.h
View File

@@ -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 */
__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;
__le64 addr_buffer2;
__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;