diff options
Diffstat (limited to 'freebsd/sys/dev/bge/if_bge.c')
| -rw-r--r-- | freebsd/sys/dev/bge/if_bge.c | 41 |
1 files changed, 33 insertions, 8 deletions
diff --git a/freebsd/sys/dev/bge/if_bge.c b/freebsd/sys/dev/bge/if_bge.c index a4a937b2..79e930ca 100644 --- a/freebsd/sys/dev/bge/if_bge.c +++ b/freebsd/sys/dev/bge/if_bge.c @@ -2929,10 +2929,14 @@ bge_dma_ring_alloc(struct bge_softc *sc, bus_size_t alignment, bus_addr_t *paddr, const char *msg) { struct bge_dmamap_arg ctx; + bus_addr_t lowaddr; + bus_size_t ring_end; int error; + lowaddr = BUS_SPACE_MAXADDR; +again: error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, - alignment, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, + alignment, 0, lowaddr, BUS_SPACE_MAXADDR, NULL, NULL, maxsize, 1, maxsize, 0, NULL, NULL, tag); if (error != 0) { device_printf(sc->bge_dev, @@ -2957,6 +2961,25 @@ bge_dma_ring_alloc(struct bge_softc *sc, bus_size_t alignment, return (ENOMEM); } *paddr = ctx.bge_busaddr; + ring_end = *paddr + maxsize; + if ((sc->bge_flags & BGE_FLAG_4G_BNDRY_BUG) != 0 && + BGE_ADDR_HI(*paddr) != BGE_ADDR_HI(ring_end)) { + /* + * 4GB boundary crossed. Limit maximum allowable DMA + * address space to 32bit and try again. + */ + bus_dmamap_unload(*tag, *map); + bus_dmamem_free(*tag, *ring, *map); + bus_dma_tag_destroy(*tag); + if (bootverbose) + device_printf(sc->bge_dev, "4GB boundary crossed, " + "limit DMA address space to 32bit for %s\n", msg); + *ring = NULL; + *tag = NULL; + *map = NULL; + lowaddr = BUS_SPACE_MAXADDR_32BIT; + goto again; + } return (0); } @@ -2964,7 +2987,7 @@ static int bge_dma_alloc(struct bge_softc *sc) { bus_addr_t lowaddr; - bus_size_t rxmaxsegsz, sbsz, txsegsz, txmaxsegsz; + bus_size_t boundary, sbsz, rxmaxsegsz, txsegsz, txmaxsegsz; int i, error; lowaddr = BUS_SPACE_MAXADDR; @@ -3051,7 +3074,9 @@ bge_dma_alloc(struct bge_softc *sc) } /* Create parent tag for buffers. */ + boundary = 0; if ((sc->bge_flags & BGE_FLAG_4G_BNDRY_BUG) != 0) { + boundary = BGE_DMA_BNDRY; /* * XXX * watchdog timeout issue was observed on BCM5704 which @@ -3062,10 +3087,10 @@ bge_dma_alloc(struct bge_softc *sc) if (sc->bge_pcixcap != 0) lowaddr = BUS_SPACE_MAXADDR_32BIT; } - error = bus_dma_tag_create(bus_get_dma_tag(sc->bge_dev), 1, 0, lowaddr, - BUS_SPACE_MAXADDR, NULL, NULL, BUS_SPACE_MAXSIZE_32BIT, 0, - BUS_SPACE_MAXSIZE_32BIT, 0, NULL, NULL, - &sc->bge_cdata.bge_buffer_tag); + error = bus_dma_tag_create(bus_get_dma_tag(sc->bge_dev), + 1, boundary, lowaddr, BUS_SPACE_MAXADDR, NULL, + NULL, BUS_SPACE_MAXSIZE_32BIT, 0, BUS_SPACE_MAXSIZE_32BIT, + 0, NULL, NULL, &sc->bge_cdata.bge_buffer_tag); if (error != 0) { device_printf(sc->bge_dev, "could not allocate buffer dma tag\n"); @@ -3253,6 +3278,8 @@ bge_mbox_reorder(struct bge_softc *sc) bus = device_get_parent(dev); if (device_get_devclass(dev) != pcib) break; + if (device_get_devclass(bus) != pci) + break; for (i = 0; i < nitems(mbox_reorder_lists); i++) { if (pci_get_vendor(dev) == mbox_reorder_lists[i].vendor && @@ -3264,8 +3291,6 @@ bge_mbox_reorder(struct bge_softc *sc) return (1); } } - if (device_get_devclass(bus) != pci) - break; } return (0); } |