diff options
| author |   dlg <dlg@openbsd.org> | 2020-12-26 11:40:44 +0000 |
|---|---|---|
| committer | dlg <dlg@openbsd.org> | 2020-12-26 11:40:44 +0000 |
| commit | 08f2bb83b449f70b4aca59023e0826c43ba4f68d (patch) | |
| tree | cefeebd0f51c1c797abe30d57cc2872ccf9dd933 | |
| parent | sprinkle some bus_dmamap_syncs around the sq. (diff) | |
| download | wireguard-openbsd-08f2bb83b449f70b4aca59023e0826c43ba4f68d.tar.xz wireguard-openbsd-08f2bb83b449f70b4aca59023e0826c43ba4f68d.zip | |
sprinkle some bus_dmamap_syncs around the cq handling.
ok jmatthew@
| -rw-r--r-- | sys/dev/pci/if_mcx.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/sys/dev/pci/if_mcx.c b/sys/dev/pci/if_mcx.c index 58acc7e7b02..4c17053ed27 100644 --- a/sys/dev/pci/if_mcx.c +++ b/sys/dev/pci/if_mcx.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_mcx.c,v 1.83 2020/12/26 11:31:42 dlg Exp $ */ +/* $OpenBSD: if_mcx.c,v 1.84 2020/12/26 11:40:44 dlg Exp $ */ /* * Copyright (c) 2017 David Gwynne <dlg@openbsd.org> @@ -4514,6 +4514,9 @@ mcx_create_cq(struct mcx_softc *sc, struct mcx_cq *cq, int uar, int db, int eqn) MCX_DMA_DVA(&sc->sc_doorbell_mem) + MCX_CQ_DOORBELL_BASE + (MCX_CQ_DOORBELL_STRIDE * db)); + bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&cq->cq_mem), + 0, MCX_DMA_LEN(&cq->cq_mem), BUS_DMASYNC_PREREAD); + /* physical addresses follow the mailbox in data */ mcx_cmdq_mboxes_pas(&mxm, sizeof(*mbin), npages, &cq->cq_mem); mcx_cmdq_post(sc, cmde, 0); @@ -4548,6 +4551,8 @@ mcx_create_cq(struct mcx_softc *sc, struct mcx_cq *cq, int uar, int db, int eqn) return (0); free_mxm: + bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&cq->cq_mem), + 0, MCX_DMA_LEN(&cq->cq_mem), BUS_DMASYNC_POSTREAD); mcx_dmamem_free(sc, &mxm); free_cq: mcx_dmamem_free(sc, &cq->cq_mem); @@ -4590,6 +4595,8 @@ mcx_destroy_cq(struct mcx_softc *sc, struct mcx_cq *cq) return -1; } + bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&cq->cq_mem), + 0, MCX_DMA_LEN(&cq->cq_mem), BUS_DMASYNC_POSTREAD); mcx_dmamem_free(sc, &cq->cq_mem); cq->cq_n = 0; @@ -6801,6 +6808,9 @@ mcx_process_cq(struct mcx_softc *sc, struct mcx_queues *q, struct mcx_cq *cq) membar_consumer(); c = &sc->sc_calibration[gen % nitems(sc->sc_calibration)]; + bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&cq->cq_mem), + 0, MCX_DMA_LEN(&cq->cq_mem), BUS_DMASYNC_POSTREAD); + rxfree = 0; txfree = 0; while ((cqe = mcx_next_cq_entry(sc, cq))) { @@ -6829,6 +6839,9 @@ mcx_process_cq(struct mcx_softc *sc, struct mcx_queues *q, struct mcx_cq *cq) cq->cq_cons++; } + bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&cq->cq_mem), + 0, MCX_DMA_LEN(&cq->cq_mem), BUS_DMASYNC_PREREAD); + cq->cq_count++; mcx_arm_cq(sc, cq, q->q_uar); |