diff options
| author |   Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> | 2019-11-07 21:29:08 +0530 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-11-07 10:41:59 -0800 |
| commit | 4846d5330dafc82990be7ffe1d1b383157268bd9 (patch) | |
| tree | 154cf132b6968d607df9cfe3ad8564119126b7d1 /drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h | |
| parent | cxgb4: add ETHOFLD hardware queue support (diff) | |
| download | linux-dev-4846d5330dafc82990be7ffe1d1b383157268bd9.tar.xz linux-dev-4846d5330dafc82990be7ffe1d1b383157268bd9.zip | |
cxgb4: add Tx and Rx path for ETHOFLD traffic
Implement Tx path for traffic flowing through software EOSW_TXQ
and EOHW_TXQ. Since multiple EOSW_TXQ can post packets to a single
EOHW_TXQ, protect the hardware queue with necessary spinlock. Also,
move common code used to generate TSO work request to a common
function.
Implement Rx path to handle Tx completions for successfully
transmitted packets.
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h index d603334bae95..ea395b43dbf4 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h +++ b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h @@ -87,6 +87,7 @@ enum fw_wr_opcodes { FW_ULPTX_WR = 0x04, FW_TP_WR = 0x05, FW_ETH_TX_PKT_WR = 0x08, + FW_ETH_TX_EO_WR = 0x1c, FW_OFLD_CONNECTION_WR = 0x2f, FW_FLOWC_WR = 0x0a, FW_OFLD_TX_DATA_WR = 0x0b, @@ -534,6 +535,35 @@ struct fw_eth_tx_pkt_wr { __be64 r3; }; +enum fw_eth_tx_eo_type { + FW_ETH_TX_EO_TYPE_TCPSEG = 1, +}; + +struct fw_eth_tx_eo_wr { + __be32 op_immdlen; + __be32 equiq_to_len16; + __be64 r3; + union fw_eth_tx_eo { + struct fw_eth_tx_eo_tcpseg { + __u8 type; + __u8 ethlen; + __be16 iplen; + __u8 tcplen; + __u8 tsclk_tsoff; + __be16 r4; + __be16 mss; + __be16 r5; + __be32 plen; + } tcpseg; + } u; +}; + +#define FW_ETH_TX_EO_WR_IMMDLEN_S 0 +#define FW_ETH_TX_EO_WR_IMMDLEN_M 0x1ff +#define FW_ETH_TX_EO_WR_IMMDLEN_V(x) ((x) << FW_ETH_TX_EO_WR_IMMDLEN_S) +#define FW_ETH_TX_EO_WR_IMMDLEN_G(x) \ + (((x) >> FW_ETH_TX_EO_WR_IMMDLEN_S) & FW_ETH_TX_EO_WR_IMMDLEN_M) + struct fw_ofld_connection_wr { __be32 op_compl; __be32 len16_pkd; |