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| author | Sreenivasa Honnur <Sreenivasa.Honnur@neterion.com> | 2008-02-20 17:07:51 -0500 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2008-03-17 07:49:26 -0400 |
| commit | 6cfc482b4b1c512d81712eba41fa324b24e5e7b2 (patch) | |
| tree | d288e4f8a08b22507a86e67826c87a0070e98789 /drivers/net/s2io.h | |
| parent | 3a3d5756ac552ee2d2cca6ba0912f0ff328e8357 (diff) | |
| download | linux-stable-6cfc482b4b1c512d81712eba41fa324b24e5e7b2.tar.gz linux-stable-6cfc482b4b1c512d81712eba41fa324b24e5e7b2.tar.bz2 linux-stable-6cfc482b4b1c512d81712eba41fa324b24e5e7b2.zip | |
S2io: Multiqueue network device support - FIFO selection based on L4 ports
- Resubmit #2
- Transmit fifo selection based on TCP/UDP ports.
- Added tx_steering_type loadable parameter for transmit fifo selection.
0x0 NO_STEERING: Default FIFO is selected.
0x1 TX_PRIORITY_STEERING: FIFO is selected based on skb->priority.
0x2 TX_DEFAULT_STEERING: FIFO is selected based on L4 Ports.
Signed-off-by: Surjit Reang <surjit.reang@neterion.com>
Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/s2io.h')
| -rw-r--r-- | drivers/net/s2io.h | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/drivers/net/s2io.h b/drivers/net/s2io.h index fdc0a94d0a89..5e351c0879fa 100644 --- a/drivers/net/s2io.h +++ b/drivers/net/s2io.h @@ -360,7 +360,10 @@ struct stat_block { #define MAX_TX_FIFOS 8 #define MAX_RX_RINGS 8 -#define FIFO_DEFAULT_NUM 1 +#define FIFO_DEFAULT_NUM 5 +#define FIFO_UDP_MAX_NUM 2 /* 0 - even, 1 -odd ports */ +#define FIFO_OTHER_MAX_NUM 1 + #define MAX_RX_DESC_1 (MAX_RX_RINGS * MAX_RX_BLOCKS_PER_RING * 127 ) #define MAX_RX_DESC_2 (MAX_RX_RINGS * MAX_RX_BLOCKS_PER_RING * 85 ) @@ -379,6 +382,8 @@ static int fifo_map[][MAX_TX_FIFOS] = { {0, 1, 2, 3, 4, 5, 6, 7}, }; +static u16 fifo_selector[MAX_TX_FIFOS] = {0, 1, 3, 3, 7, 7, 7, 7}; + /* Maintains Per FIFO related information. */ struct tx_fifo_config { #define MAX_AVAILABLE_TXDS 8192 @@ -431,6 +436,12 @@ struct config_param { /* Tx Side */ u32 tx_fifo_num; /*Number of Tx FIFOs */ + /* 0-No steering, 1-Priority steering, 2-Default fifo map */ +#define NO_STEERING 0 +#define TX_PRIORITY_STEERING 0x1 +#define TX_DEFAULT_STEERING 0x2 + u8 tx_steering_type; + u8 fifo_mapping[MAX_TX_FIFOS]; struct tx_fifo_config tx_cfg[MAX_TX_FIFOS]; /*Per-Tx FIFO config */ u32 max_txds; /*Max no. of Tx buffer descriptor per TxDL */ @@ -895,6 +906,27 @@ struct s2io_nic { */ int rx_csum; + /* Below variables are used for fifo selection to transmit a packet */ + u16 fifo_selector[MAX_TX_FIFOS]; + + /* Total fifos for tcp packets */ + u8 total_tcp_fifos; + + /* + * Beginning index of udp for udp packets + * Value will be equal to + * (tx_fifo_num - FIFO_UDP_MAX_NUM - FIFO_OTHER_MAX_NUM) + */ + u8 udp_fifo_idx; + + u8 total_udp_fifos; + + /* + * Beginning index of fifo for all other packets + * Value will be equal to (tx_fifo_num - FIFO_OTHER_MAX_NUM) + */ + u8 other_fifo_idx; + /* after blink, the adapter must be restored with original * values. */ |