From: Ralph Campbell Date: Tue, 18 Jul 2006 01:19:54 +0000 (-0700) Subject: IB/ipath: Fix ib_ipath driver to work with SRP X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=c9f79bdc21da9c8d466b6ba7c8bbd6b8e0110ce2;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git 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 --- diff --git a/drivers/infiniband/hw/ipath/ipath_keys.c b/drivers/infiniband/hw/ipath/ipath_keys.c index 46773c673a1a..a5ca279370aa 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; diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c index 56ac336dd1ec..70bce7a8d538 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c @@ -627,6 +627,7 @@ static int ipath_query_device(struct ib_device *ibdev, props->device_cap_flags = IB_DEVICE_BAD_PKEY_CNTR | IB_DEVICE_BAD_QKEY_CNTR | IB_DEVICE_SHUTDOWN_PORT | IB_DEVICE_SYS_IMAGE_GUID; + props->page_size_cap = PAGE_SIZE; props->vendor_id = ipath_layer_get_vendorid(dev->dd); props->vendor_part_id = ipath_layer_get_deviceid(dev->dd); props->hw_ver = ipath_layer_get_pcirev(dev->dd);