From b7d3e0a94fe128912bbebf0ae68551c85fd2d429 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 23 Dec 2015 19:12:47 +0100 Subject: IB: remove support for phys MRs We have stopped using phys MRs in the kernel a while ago, so let's remove all the cruft used to implement them. Signed-off-by: Christoph Hellwig Reviewed-by: Sagi Grimberg Reviewed-by: Jason Gunthorpe [core] Reviewed-By: Devesh Sharma [ocrdma] Reviewed-by: Steve Wise Signed-off-by: Doug Ledford --- drivers/infiniband/hw/cxgb3/iwch_mem.c | 31 ------------- drivers/infiniband/hw/cxgb3/iwch_provider.c | 69 ----------------------------- drivers/infiniband/hw/cxgb3/iwch_provider.h | 4 -- 3 files changed, 104 deletions(-) (limited to 'drivers/infiniband/hw/cxgb3') diff --git a/drivers/infiniband/hw/cxgb3/iwch_mem.c b/drivers/infiniband/hw/cxgb3/iwch_mem.c index 5c36ee2809ac..3a5e27db4a15 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_mem.c +++ b/drivers/infiniband/hw/cxgb3/iwch_mem.c @@ -75,37 +75,6 @@ int iwch_register_mem(struct iwch_dev *rhp, struct iwch_pd *php, return ret; } -int iwch_reregister_mem(struct iwch_dev *rhp, struct iwch_pd *php, - struct iwch_mr *mhp, - int shift, - int npages) -{ - u32 stag; - int ret; - - /* We could support this... */ - if (npages > mhp->attr.pbl_size) - return -ENOMEM; - - stag = mhp->attr.stag; - if (cxio_reregister_phys_mem(&rhp->rdev, - &stag, mhp->attr.pdid, - mhp->attr.perms, - mhp->attr.zbva, - mhp->attr.va_fbo, - mhp->attr.len, - shift - 12, - mhp->attr.pbl_size, mhp->attr.pbl_addr)) - return -ENOMEM; - - ret = iwch_finish_mem_reg(mhp, stag); - if (ret) - cxio_dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size, - mhp->attr.pbl_addr); - - return ret; -} - int iwch_alloc_pbl(struct iwch_mr *mhp, int npages) { mhp->attr.pbl_addr = cxio_hal_pblpool_alloc(&mhp->rhp->rdev, diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c index c34725ca0bb4..f7aa019a3c1a 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_provider.c +++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c @@ -556,73 +556,6 @@ err: } -static int iwch_reregister_phys_mem(struct ib_mr *mr, - int mr_rereg_mask, - struct ib_pd *pd, - struct ib_phys_buf *buffer_list, - int num_phys_buf, - int acc, u64 * iova_start) -{ - - struct iwch_mr mh, *mhp; - struct iwch_pd *php; - struct iwch_dev *rhp; - __be64 *page_list = NULL; - int shift = 0; - u64 total_size; - int npages = 0; - int ret; - - PDBG("%s ib_mr %p ib_pd %p\n", __func__, mr, pd); - - /* There can be no memory windows */ - if (atomic_read(&mr->usecnt)) - return -EINVAL; - - mhp = to_iwch_mr(mr); - rhp = mhp->rhp; - php = to_iwch_pd(mr->pd); - - /* make sure we are on the same adapter */ - if (rhp != php->rhp) - return -EINVAL; - - memcpy(&mh, mhp, sizeof *mhp); - - if (mr_rereg_mask & IB_MR_REREG_PD) - php = to_iwch_pd(pd); - if (mr_rereg_mask & IB_MR_REREG_ACCESS) - mh.attr.perms = iwch_ib_to_tpt_access(acc); - if (mr_rereg_mask & IB_MR_REREG_TRANS) { - ret = build_phys_page_list(buffer_list, num_phys_buf, - iova_start, - &total_size, &npages, - &shift, &page_list); - if (ret) - return ret; - } - - ret = iwch_reregister_mem(rhp, php, &mh, shift, npages); - kfree(page_list); - if (ret) { - return ret; - } - if (mr_rereg_mask & IB_MR_REREG_PD) - mhp->attr.pdid = php->pdid; - if (mr_rereg_mask & IB_MR_REREG_ACCESS) - mhp->attr.perms = iwch_ib_to_tpt_access(acc); - if (mr_rereg_mask & IB_MR_REREG_TRANS) { - mhp->attr.zbva = 0; - mhp->attr.va_fbo = *iova_start; - mhp->attr.page_size = shift - 12; - mhp->attr.len = (u32) total_size; - mhp->attr.pbl_size = npages; - } - - return 0; -} - - static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, u64 virt, int acc, struct ib_udata *udata) { @@ -1452,8 +1385,6 @@ int iwch_register_device(struct iwch_dev *dev) dev->ibdev.resize_cq = iwch_resize_cq; dev->ibdev.poll_cq = iwch_poll_cq; dev->ibdev.get_dma_mr = iwch_get_dma_mr; - dev->ibdev.reg_phys_mr = iwch_register_phys_mem; - dev->ibdev.rereg_phys_mr = iwch_reregister_phys_mem; dev->ibdev.reg_user_mr = iwch_reg_user_mr; dev->ibdev.dereg_mr = iwch_dereg_mr; dev->ibdev.alloc_mw = iwch_alloc_mw; diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.h b/drivers/infiniband/hw/cxgb3/iwch_provider.h index 2ac85b86a680..f4fa6d677c0f 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_provider.h +++ b/drivers/infiniband/hw/cxgb3/iwch_provider.h @@ -341,10 +341,6 @@ void iwch_unregister_device(struct iwch_dev *dev); void stop_read_rep_timer(struct iwch_qp *qhp); int iwch_register_mem(struct iwch_dev *rhp, struct iwch_pd *php, struct iwch_mr *mhp, int shift); -int iwch_reregister_mem(struct iwch_dev *rhp, struct iwch_pd *php, - struct iwch_mr *mhp, - int shift, - int npages); int iwch_alloc_pbl(struct iwch_mr *mhp, int npages); void iwch_free_pbl(struct iwch_mr *mhp); int iwch_write_pbl(struct iwch_mr *mhp, __be64 *pages, int npages, int offset); -- cgit v1.2.3-59-g8ed1b