diff options
| author | David Gwynne <dlg@cvs.openbsd.org> | 2012-08-23 11:18:54 +0000 |
|---|---|---|
| committer | David Gwynne <dlg@cvs.openbsd.org> | 2012-08-23 11:18:54 +0000 |
| commit | 384e2635fc4b40572d0a38b478c3f9e77720b43e (patch) | |
| tree | 41ad611efaafde85999b00677729bb361bdaedfe /sys | |
| parent | 5d08f5f9ffcaeeb829a2999aeb7b792dec799040 (diff) | |
the chain_offset in mfii requests are in 16 byte units, not 4 like
mpii. this stops the chip from freaking out on me when doing chained
sgls.
found by alex wilson who wins prizes.
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/pci/mfii.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/sys/dev/pci/mfii.c b/sys/dev/pci/mfii.c index e4467e39139..39ff947793f 100644 --- a/sys/dev/pci/mfii.c +++ b/sys/dev/pci/mfii.c @@ -1,4 +1,4 @@ -/* $OpenBSD: mfii.c,v 1.9 2012/08/23 07:21:06 dlg Exp $ */ +/* $OpenBSD: mfii.c,v 1.10 2012/08/23 11:18:53 dlg Exp $ */ /* * Copyright (c) 2012 David Gwynne <dlg@openbsd.org> @@ -1287,7 +1287,9 @@ mfii_load_ccb(struct mfii_softc *sc, struct mfii_ccb *ccb, void *sglp, sizeof(*nsge); if (dmap->dm_nsegs > space) { space--; - ccb->ccb_sgl_len = (dmap->dm_nsegs - space) * sizeof(*sge); + + ccb->ccb_sgl_len = (dmap->dm_nsegs - space) * sizeof(*nsge); + bzero(ccb->ccb_sgl, ccb->ccb_sgl_len); ce = nsge + space; ce->sg_addr = htole64(ccb->ccb_sgl_dva); @@ -1295,7 +1297,7 @@ mfii_load_ccb(struct mfii_softc *sc, struct mfii_ccb *ccb, void *sglp, ce->sg_flags = MFII_SGE_CHAIN_ELEMENT | MFII_SGE_ADDR_IOCPLBNTA; - req->chain_offset = ((u_int8_t *)ce - (u_int8_t *)req) / 4; + req->chain_offset = ((u_int8_t *)ce - (u_int8_t *)req) / 16; } for (i = 0; i < dmap->dm_nsegs; i++) { @@ -1306,6 +1308,7 @@ mfii_load_ccb(struct mfii_softc *sc, struct mfii_ccb *ccb, void *sglp, sge->sg_addr = htole64(dmap->dm_segs[i].ds_addr); sge->sg_len = htole32(dmap->dm_segs[i].ds_len); + sge->sg_flags = MFII_SGE_ADDR_SYSTEM; nsge = sge + 1; } @@ -1408,8 +1411,8 @@ mfii_init_ccb(struct mfii_softc *sc) ccb->ccb_sgl_offset = sizeof(struct mfii_sge) * sc->sc_max_sgl * i; ccb->ccb_sgl = (struct mfii_sge *)(sgl + ccb->ccb_sgl_offset); - ccb->ccb_sgl_dva = (MFII_DMA_DVA(sc->sc_sgl) + - ccb->ccb_sgl_offset); + ccb->ccb_sgl_dva = MFII_DMA_DVA(sc->sc_sgl) + + ccb->ccb_sgl_offset; /* add ccb to queue */ mfii_put_ccb(sc, ccb); |