diff options
Diffstat (limited to 'sys/dev/ste/if_stereg.h')
| -rw-r--r-- | sys/dev/ste/if_stereg.h | 59 |
1 files changed, 47 insertions, 12 deletions
diff --git a/sys/dev/ste/if_stereg.h b/sys/dev/ste/if_stereg.h index 8de1961..49c52aa 100644 --- a/sys/dev/ste/if_stereg.h +++ b/sys/dev/ste/if_stereg.h @@ -412,6 +412,14 @@ struct ste_frag { #define STE_FRAG_LAST 0x80000000 #define STE_FRAG_LEN 0x00001FFF +/* + * A TFD is 16 to 512 bytes in length which means it can have up to 126 + * fragments for a single Tx frame. Since most frames used in stack have + * 3-4 fragments supporting 8 fragments would be enough for normal + * operation. If we encounter more than 8 fragments we'll collapse them + * into a frame that has less than or equal to 8 fragments. Each buffer + * address of a fragment has no alignment limitation. + */ #define STE_MAXFRAGS 8 struct ste_desc { @@ -420,6 +428,12 @@ struct ste_desc { struct ste_frag ste_frags[STE_MAXFRAGS]; }; +/* + * A RFD has the same structure of TFD which in turn means hardware + * supports scatter operation in Rx buffer. Since we just allocate Rx + * buffer with m_getcl(9) there is no fragmentation at all so use + * single fragment for RFD. + */ struct ste_desc_onefrag { uint32_t ste_next; uint32_t ste_status; @@ -427,6 +441,7 @@ struct ste_desc_onefrag { }; #define STE_TXCTL_WORDALIGN 0x00000003 +#define STE_TXCTL_ALIGN_DIS 0x00000001 #define STE_TXCTL_FRAMEID 0x000003FC #define STE_TXCTL_NOCRC 0x00002000 #define STE_TXCTL_TXINTR 0x00008000 @@ -445,6 +460,8 @@ struct ste_desc_onefrag { #define STE_RXSTAT_DMA_OFLOW 0x01000000 #define STE_RXATAT_ONEBUF 0x10000000 +#define STE_RX_BYTES(x) ((x) & STE_RXSTAT_FRAMELEN) + /* * register space access macros */ @@ -462,13 +479,22 @@ struct ste_desc_onefrag { #define CSR_READ_1(sc, reg) \ bus_space_read_1(sc->ste_btag, sc->ste_bhandle, reg) +#define STE_DESC_ALIGN 8 +#define STE_RX_LIST_CNT 128 +#define STE_TX_LIST_CNT 128 +#define STE_RX_LIST_SZ \ + (sizeof(struct ste_desc_onefrag) * STE_RX_LIST_CNT) +#define STE_TX_LIST_SZ \ + (sizeof(struct ste_desc) * STE_TX_LIST_CNT) +#define STE_ADDR_LO(x) ((uint64_t)(x) & 0xFFFFFFFF) +#define STE_ADDR_HI(x) ((uint64_t)(x) >> 32) + +#define STE_TX_TIMEOUT 5 #define STE_TIMEOUT 1000 #define STE_MIN_FRAMELEN 60 #define STE_PACKET_SIZE 1536 -#define ETHER_ALIGN 2 -#define STE_RX_LIST_CNT 64 -#define STE_TX_LIST_CNT 128 #define STE_INC(x, y) (x) = (x + 1) % y +#define STE_DEC(x, y) (x) = ((x) + ((y) - 1)) % (y) #define STE_NEXT(x, y) (x + 1) % y struct ste_type { @@ -478,8 +504,10 @@ struct ste_type { }; struct ste_list_data { - struct ste_desc_onefrag ste_rx_list[STE_RX_LIST_CNT]; - struct ste_desc ste_tx_list[STE_TX_LIST_CNT]; + struct ste_desc_onefrag *ste_rx_list; + bus_addr_t ste_rx_list_paddr; + struct ste_desc *ste_tx_list; + bus_addr_t ste_tx_list_paddr; }; struct ste_chain { @@ -487,21 +515,32 @@ struct ste_chain { struct mbuf *ste_mbuf; struct ste_chain *ste_next; uint32_t ste_phys; + bus_dmamap_t ste_map; }; struct ste_chain_onefrag { struct ste_desc_onefrag *ste_ptr; struct mbuf *ste_mbuf; struct ste_chain_onefrag *ste_next; + bus_dmamap_t ste_map; }; struct ste_chain_data { + bus_dma_tag_t ste_parent_tag; + bus_dma_tag_t ste_rx_tag; + bus_dma_tag_t ste_tx_tag; + bus_dma_tag_t ste_rx_list_tag; + bus_dmamap_t ste_rx_list_map; + bus_dma_tag_t ste_tx_list_tag; + bus_dmamap_t ste_tx_list_map; + bus_dmamap_t ste_rx_sparemap; struct ste_chain_onefrag ste_rx_chain[STE_RX_LIST_CNT]; - struct ste_chain ste_tx_chain[STE_TX_LIST_CNT]; + struct ste_chain ste_tx_chain[STE_TX_LIST_CNT]; struct ste_chain_onefrag *ste_rx_head; - + struct ste_chain *ste_last_tx; int ste_tx_prod; int ste_tx_cons; + int ste_tx_cnt; }; struct ste_softc { @@ -518,15 +557,11 @@ struct ste_softc { uint8_t ste_link; int ste_if_flags; int ste_timer; - struct ste_chain *ste_tx_prev; - struct ste_list_data *ste_ldata; + struct ste_list_data ste_ldata; struct ste_chain_data ste_cdata; struct callout ste_stat_callout; struct mtx ste_mtx; uint8_t ste_one_phy; -#ifdef DEVICE_POLLING - int rxcycles; -#endif }; #define STE_LOCK(_sc) mtx_lock(&(_sc)->ste_mtx) |
