diff options
Diffstat (limited to 'sys/dev/fxp/if_fxpvar.h')
| -rw-r--r-- | sys/dev/fxp/if_fxpvar.h | 63 |
1 files changed, 54 insertions, 9 deletions
diff --git a/sys/dev/fxp/if_fxpvar.h b/sys/dev/fxp/if_fxpvar.h index 81d0a73..1cb3cf5 100644 --- a/sys/dev/fxp/if_fxpvar.h +++ b/sys/dev/fxp/if_fxpvar.h @@ -40,6 +40,19 @@ #define FXP_NTXCB 128 /* + * Size of the TxCB list. + */ +#define FXP_TXCB_SZ (FXP_NTXCB * sizeof(struct fxp_cb_tx)) + +/* + * Macro to obtain the DMA address of a virtual address in the + * TxCB list based on the base DMA address of the TxCB list. + */ +#define FXP_TXCB_DMA_ADDR(sc, addr) \ + (sc->fxp_desc.cbl_addr + (uintptr_t)addr - \ + (uintptr_t)sc->fxp_desc.cbl_list) + +/* * Number of completed TX commands at which point an interrupt * will be generated to garbage collect the attached buffers. * Must be at least one less than FXP_NTXCB, and should be @@ -99,10 +112,36 @@ struct mtx { int dummy; }; #define FXP_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx) #endif -#ifdef __alpha__ -#undef vtophys -#define vtophys(va) alpha_XXX_dmamap((vm_offset_t)(va)) -#endif /* __alpha__ */ +/* + * Structures to handle TX and RX descriptors. + */ +struct fxp_rx { + struct fxp_rx *rx_next; + struct mbuf *rx_mbuf; + bus_dmamap_t rx_map; + u_int32_t rx_addr; +}; + +struct fxp_tx { + struct fxp_tx *tx_next; + struct fxp_cb_tx *tx_cb; + struct mbuf *tx_mbuf; + bus_dmamap_t tx_map; +}; + +struct fxp_desc_list { + struct fxp_rx rx_list[FXP_NRFABUFS]; + struct fxp_tx tx_list[FXP_NTXCB]; + struct fxp_tx mcs_tx; + struct fxp_rx *rx_head; + struct fxp_rx *rx_tail; + struct fxp_tx *tx_first; + struct fxp_tx *tx_last; + struct fxp_rfa *rfa_list; + struct fxp_cb_tx *cbl_list; + u_int32_t cbl_addr; + bus_dma_tag_t rx_tag; +}; /* * NOTE: Elements are ordered for optimal cacheline behavior, and NOT @@ -118,17 +157,23 @@ struct fxp_softc { struct mtx sc_mtx; bus_space_tag_t sc_st; /* bus space tag */ bus_space_handle_t sc_sh; /* bus space handle */ - struct mbuf *rfa_headm; /* first mbuf in receive frame area */ - struct mbuf *rfa_tailm; /* last mbuf in receive frame area */ - struct fxp_cb_tx *cbl_first; /* first active TxCB in list */ + bus_dma_tag_t fxp_mtag; /* bus DMA tag for mbufs */ + bus_dma_tag_t fxp_stag; /* bus DMA tag for stats */ + bus_dmamap_t fxp_smap; /* bus DMA map for stats */ + bus_dma_tag_t cbl_tag; /* DMA tag for the TxCB list */ + bus_dmamap_t cbl_map; /* DMA map for the TxCB list */ + bus_dma_tag_t mcs_tag; /* DMA tag for the multicast setup */ + bus_dmamap_t mcs_map; /* DMA map for the multicast setup */ + bus_dmamap_t spare_map; /* spare DMA map */ + struct fxp_desc_list fxp_desc; /* descriptors management struct */ int tx_queued; /* # of active TxCB's */ int need_mcsetup; /* multicast filter needs programming */ - struct fxp_cb_tx *cbl_last; /* last active TxCB in list */ struct fxp_stats *fxp_stats; /* Pointer to interface stats */ + u_int32_t stats_addr; /* DMA address of the stats structure */ int rx_idle_secs; /* # of seconds RX has been idle */ struct callout_handle stat_ch; /* Handle for canceling our stat timeout */ - struct fxp_cb_tx *cbl_base; /* base of TxCB list */ struct fxp_cb_mcs *mcsp; /* Pointer to mcast setup descriptor */ + u_int32_t mcs_addr; /* DMA address of the multicast cmd */ struct ifmedia sc_media; /* media information */ device_t miibus; device_t dev; |
