From c9f79bdc21da9c8d466b6ba7c8bbd6b8e0110ce2 Mon Sep 17 00:00:00 2001 From: Ralph Campbell Date: Mon, 17 Jul 2006 18:19:54 -0700 Subject: IB/ipath: Fix ib_ipath driver to work with SRP I am still working on a proposal to remove the phys_to_virt() calls in the ib_ipath driver. In the mean time, this patch allows SRP to work by fixing the R_Key check and conversion from IB address to kernel virtual address. It also returns the correct page size for FMRs. Signed-off-by: Ralph Campbell Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_keys.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'drivers/infiniband/hw/ipath/ipath_keys.c') diff --git a/drivers/infiniband/hw/ipath/ipath_keys.c b/drivers/infiniband/hw/ipath/ipath_keys.c index 46773c673a1..a5ca279370a 100644 --- a/drivers/infiniband/hw/ipath/ipath_keys.c +++ b/drivers/infiniband/hw/ipath/ipath_keys.c @@ -197,6 +197,21 @@ int ipath_rkey_ok(struct ipath_ibdev *dev, struct ipath_sge_state *ss, size_t off; int ret; + /* + * We use RKEY == zero for physical addresses + * (see ipath_get_dma_mr). + */ + if (rkey == 0) { + sge->mr = NULL; + sge->vaddr = phys_to_virt(vaddr); + sge->length = len; + sge->sge_length = len; + ss->sg_list = NULL; + ss->num_sge = 1; + ret = 1; + goto bail; + } + mr = rkt->table[(rkey >> (32 - ib_ipath_lkey_table_size))]; if (unlikely(mr == NULL || mr->lkey != rkey)) { ret = 0; -- cgit v1.2.3