diff options
Diffstat (limited to 'drivers/infiniband/hw/cxgb3/iwch_provider.c')
| -rw-r--r-- | drivers/infiniband/hw/cxgb3/iwch_provider.c | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c index a891493fd34..e7c2c394803 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_provider.c +++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c @@ -47,6 +47,7 @@ #include <rdma/iw_cm.h> #include <rdma/ib_verbs.h> #include <rdma/ib_smi.h> +#include <rdma/ib_umem.h> #include <rdma/ib_user_verbs.h> #include "cxio_hal.h" @@ -443,6 +444,8 @@ static int iwch_dereg_mr(struct ib_mr *ib_mr) remove_handle(rhp, &rhp->mmidr, mmid); if (mhp->kva) kfree((void *) (unsigned long) mhp->kva); + if (mhp->umem) + ib_umem_release(mhp->umem); PDBG("%s mmid 0x%x ptr %p\n", __FUNCTION__, mmid, mhp); kfree(mhp); return 0; @@ -577,8 +580,8 @@ static int iwch_reregister_phys_mem(struct ib_mr *mr, } -static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, struct ib_umem *region, - int acc, struct ib_udata *udata) +static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, + u64 virt, int acc, struct ib_udata *udata) { __be64 *pages; int shift, n, len; @@ -591,7 +594,6 @@ static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, struct ib_umem *region, struct iwch_reg_user_mr_resp uresp; PDBG("%s ib_pd %p\n", __FUNCTION__, pd); - shift = ffs(region->page_size) - 1; php = to_iwch_pd(pd); rhp = php->rhp; @@ -599,8 +601,17 @@ static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, struct ib_umem *region, if (!mhp) return ERR_PTR(-ENOMEM); + mhp->umem = ib_umem_get(pd->uobject->context, start, length, acc); + if (IS_ERR(mhp->umem)) { + err = PTR_ERR(mhp->umem); + kfree(mhp); + return ERR_PTR(err); + } + + shift = ffs(mhp->umem->page_size) - 1; + n = 0; - list_for_each_entry(chunk, ®ion->chunk_list, list) + list_for_each_entry(chunk, &mhp->umem->chunk_list, list) n += chunk->nents; pages = kmalloc(n * sizeof(u64), GFP_KERNEL); @@ -611,13 +622,13 @@ static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, struct ib_umem *region, i = n = 0; - list_for_each_entry(chunk, ®ion->chunk_list, list) + list_for_each_entry(chunk, &mhp->umem->chunk_list, list) for (j = 0; j < chunk->nmap; ++j) { len = sg_dma_len(&chunk->page_list[j]) >> shift; for (k = 0; k < len; ++k) { pages[i++] = cpu_to_be64(sg_dma_address( &chunk->page_list[j]) + - region->page_size * k); + mhp->umem->page_size * k); } } @@ -625,9 +636,9 @@ static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, struct ib_umem *region, mhp->attr.pdid = php->pdid; mhp->attr.zbva = 0; mhp->attr.perms = iwch_ib_to_tpt_access(acc); - mhp->attr.va_fbo = region->virt_base; + mhp->attr.va_fbo = virt; mhp->attr.page_size = shift - 12; - mhp->attr.len = (u32) region->length; + mhp->attr.len = (u32) length; mhp->attr.pbl_size = i; err = iwch_register_mem(rhp, php, mhp, shift, pages); kfree(pages); @@ -650,6 +661,7 @@ static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, struct ib_umem *region, return &mhp->ibmr; err: + ib_umem_release(mhp->umem); kfree(mhp); return ERR_PTR(err); } |