diff options
Diffstat (limited to 'drivers/net/ethernet/marvell/octeon_ep/octep_tx.h')
| -rw-r--r-- | drivers/net/ethernet/marvell/octeon_ep/octep_tx.h | 121 |
1 files changed, 77 insertions, 44 deletions
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_tx.h b/drivers/net/ethernet/marvell/octeon_ep/octep_tx.h index 2ef57980eb47..58fb39dda977 100644 --- a/drivers/net/ethernet/marvell/octeon_ep/octep_tx.h +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_tx.h @@ -17,12 +17,28 @@ #define TX_BUFTYPE_NET_SG 2 #define NUM_TX_BUFTYPES 3 -/* Hardware format for Scatter/Gather list */ +/* Hardware format for Scatter/Gather list + * + * 63 48|47 32|31 16|15 0 + * ----------------------------------------- + * | Len 0 | Len 1 | Len 2 | Len 3 | + * ----------------------------------------- + * | Ptr 0 | + * ----------------------------------------- + * | Ptr 1 | + * ----------------------------------------- + * | Ptr 2 | + * ----------------------------------------- + * | Ptr 3 | + * ----------------------------------------- + */ struct octep_tx_sglist_desc { u16 len[4]; dma_addr_t dma_ptr[4]; }; +static_assert(sizeof(struct octep_tx_sglist_desc) == 40); + /* Each Scatter/Gather entry sent to hardwar hold four pointers. * So, number of entries required is (MAX_SKB_FRAGS + 1)/4, where '+1' * is for main skb which also goes as a gather buffer to Octeon hardware. @@ -45,6 +61,18 @@ struct octep_tx_buffer { /* Hardware interface Tx statistics */ struct octep_iface_tx_stats { + /* Total frames sent on the interface */ + u64 pkts; + + /* Total octets sent on the interface */ + u64 octs; + + /* Packets sent to a broadcast DMAC */ + u64 bcst; + + /* Packets sent to the multicast DMAC */ + u64 mcst; + /* Packets dropped due to excessive collisions */ u64 xscol; @@ -61,12 +89,6 @@ struct octep_iface_tx_stats { */ u64 scol; - /* Total octets sent on the interface */ - u64 octs; - - /* Total frames sent on the interface */ - u64 pkts; - /* Packets sent with an octet count < 64 */ u64 hist_lt64; @@ -91,12 +113,6 @@ struct octep_iface_tx_stats { /* Packets sent with an octet count of > 1518 */ u64 hist_gt1518; - /* Packets sent to a broadcast DMAC */ - u64 bcst; - - /* Packets sent to the multicast DMAC */ - u64 mcst; - /* Packets sent that experienced a transmit underflow and were * truncated */ @@ -154,11 +170,8 @@ struct octep_iq { */ u16 flush_index; - /* Statistics for this input queue. */ - struct octep_iq_stats stats; - - /* This field keeps track of the instructions pending in this queue. */ - atomic_t instr_pending; + /* Pointer to statistics for this input queue. */ + struct octep_iq_stats *stats; /* Pointer to the Virtual Base addr of the input ring. */ struct octep_tx_desc_hw *desc_ring; @@ -226,30 +239,53 @@ struct octep_instr_hdr { u64 reserved3:1; }; -/* Hardware Tx completion response header */ -struct octep_instr_resp_hdr { - /* Request ID */ - u64 rid:16; +static_assert(sizeof(struct octep_instr_hdr) == 8); + +/* Tx offload flags */ +#define OCTEP_TX_OFFLOAD_VLAN_INSERT BIT(0) +#define OCTEP_TX_OFFLOAD_IPV4_CKSUM BIT(1) +#define OCTEP_TX_OFFLOAD_UDP_CKSUM BIT(2) +#define OCTEP_TX_OFFLOAD_TCP_CKSUM BIT(3) +#define OCTEP_TX_OFFLOAD_SCTP_CKSUM BIT(4) +#define OCTEP_TX_OFFLOAD_TCP_TSO BIT(5) +#define OCTEP_TX_OFFLOAD_UDP_TSO BIT(6) + +#define OCTEP_TX_OFFLOAD_CKSUM (OCTEP_TX_OFFLOAD_IPV4_CKSUM | \ + OCTEP_TX_OFFLOAD_UDP_CKSUM | \ + OCTEP_TX_OFFLOAD_TCP_CKSUM) - /* PCIe port to use for response */ - u64 pcie_port:3; +#define OCTEP_TX_OFFLOAD_TSO (OCTEP_TX_OFFLOAD_TCP_TSO | \ + OCTEP_TX_OFFLOAD_UDP_TSO) - /* Scatter indicator 1=scatter */ - u64 scatter:1; +#define OCTEP_TX_IP_CSUM(flags) ((flags) & \ + (OCTEP_TX_OFFLOAD_IPV4_CKSUM | \ + OCTEP_TX_OFFLOAD_TCP_CKSUM | \ + OCTEP_TX_OFFLOAD_UDP_CKSUM)) - /* Size of Expected result OR no. of entries in scatter list */ - u64 rlenssz:14; +#define OCTEP_TX_TSO(flags) ((flags) & \ + (OCTEP_TX_OFFLOAD_TCP_TSO | \ + OCTEP_TX_OFFLOAD_UDP_TSO)) - /* Desired destination port for result */ - u64 dport:6; +struct tx_mdata { - /* Opcode Specific parameters */ - u64 param:8; + /* offload flags */ + u16 ol_flags; - /* Opcode for the return packet */ - u64 opcode:16; + /* gso size */ + u16 gso_size; + + /* gso flags */ + u16 gso_segs; + + /* reserved */ + u16 rsvd1; + + /* reserved */ + u64 rsvd2; }; +static_assert(sizeof(struct tx_mdata) == 16); + /* 64-byte Tx instruction format. * Format of instruction for a 64-byte mode input queue. * @@ -267,18 +303,15 @@ struct octep_tx_desc_hw { struct octep_instr_hdr ih; u64 ih64; }; - - /* Pointer where the response for a RAW mode packet will be written - * by Octeon. - */ - u64 rptr; - - /* Input Instruction Response Header. */ - struct octep_instr_resp_hdr irh; - + union { + u64 txm64[2]; + struct tx_mdata txm; + }; /* Additional headers available in a 64-byte instruction. */ - u64 exhdr[4]; + u64 exthdr[4]; }; +static_assert(sizeof(struct octep_tx_desc_hw) == 64); + #define OCTEP_IQ_DESC_SIZE (sizeof(struct octep_tx_desc_hw)) #endif /* _OCTEP_TX_H_ */ |