From: Artemy Kovalyov <artemyko@xxxxxxxxxxxx>
Size of pages are held by struct ib_umem in page_size field.
It is better to store it as an exponent, because page size by nature
is always power-of-two and used as a factor, divisor or ilog2's argument.
The conversion of page_size to be page_shift allows to have portable
code and avoid following error while compiling on ARM:
ERROR: "__aeabi_uldivmod" [drivers/infiniband/core/ib_core.ko] undefined!
CC: Selvin Xavier <selvin.xavier@xxxxxxxxxxxx>
CC: Steve Wise <swise@xxxxxxxxxxx>
CC: Lijun Ou <oulijun@xxxxxxxxxx>
CC: Shiraz Saleem <shiraz.saleem@xxxxxxxxx>
CC: Adit Ranadive <aditr@xxxxxxxxxx>
CC: Dennis Dalessandro <dennis.dalessandro@xxxxxxxxx>
CC: Ram Amrani <Ram.Amrani@xxxxxxxxxx>
Signed-off-by: Artemy Kovalyov <artemyko@xxxxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leon@xxxxxxxxxx>
---
Change from v0:
* Remove temp variable (pg_shift) variable from i40iw driver.
---
drivers/infiniband/core/umem.c | 15 ++++++---------
drivers/infiniband/core/umem_odp.c | 12 ++++++------
drivers/infiniband/hw/bnxt_re/ib_verbs.c | 12 ++++++------
drivers/infiniband/hw/cxgb3/iwch_provider.c | 4 ++--
drivers/infiniband/hw/cxgb4/mem.c | 4 ++--
drivers/infiniband/hw/hns/hns_roce_cq.c | 3 +--
drivers/infiniband/hw/hns/hns_roce_mr.c | 9 +++++----
drivers/infiniband/hw/hns/hns_roce_qp.c | 3 +--
drivers/infiniband/hw/i40iw/i40iw_verbs.c | 10 +++++-----
drivers/infiniband/hw/mlx4/cq.c | 2 +-
drivers/infiniband/hw/mlx4/mr.c | 6 +++---
drivers/infiniband/hw/mlx4/qp.c | 2 +-
drivers/infiniband/hw/mlx4/srq.c | 2 +-
drivers/infiniband/hw/mlx5/mem.c | 4 ++--
drivers/infiniband/hw/mlx5/odp.c | 2 +-
drivers/infiniband/hw/mthca/mthca_provider.c | 5 ++---
drivers/infiniband/hw/nes/nes_verbs.c | 4 ++--
drivers/infiniband/hw/ocrdma/ocrdma_verbs.c | 15 ++++++---------
drivers/infiniband/hw/qedr/verbs.c | 8 ++++----
drivers/infiniband/hw/vmw_pvrdma/pvrdma_misc.c | 2 +-
drivers/infiniband/sw/rdmavt/mr.c | 8 ++++----
drivers/infiniband/sw/rxe/rxe_mr.c | 8 +++-----
include/rdma/ib_umem.h | 4 ++--
23 files changed, 67 insertions(+), 77 deletions(-)
diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c
index 27f155d2df8d..6b87c051ffd4 100644
--- a/drivers/infiniband/core/umem.c
+++ b/drivers/infiniband/core/umem.c
@@ -115,11 +115,11 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr,
if (!umem)
return ERR_PTR(-ENOMEM);
- umem->context = context;
- umem->length = size;
- umem->address = addr;
- umem->page_size = PAGE_SIZE;
- umem->pid = get_task_pid(current, PIDTYPE_PID);
+ umem->context = context;
+ umem->length = size;
+ umem->address = addr;
+ umem->page_shift = PAGE_SHIFT;
+ umem->pid = get_task_pid(current, PIDTYPE_PID);
/*
* We ask for writable memory if any of the following
* access flags are set. "Local write" and "remote write"
@@ -315,7 +315,6 @@ EXPORT_SYMBOL(ib_umem_release);
int ib_umem_page_count(struct ib_umem *umem)
{
- int shift;
int i;
int n;
struct scatterlist *sg;
@@ -323,11 +322,9 @@ int ib_umem_page_count(struct ib_umem *umem)
if (umem->odp_data)
return ib_umem_num_pages(umem);
- shift = ilog2(umem->page_size);
-
n = 0;
for_each_sg(umem->sg_head.sgl, sg, umem->nmap, i)
- n += sg_dma_len(sg) >> shift;
+ n += sg_dma_len(sg) >> umem->page_shift;
return n;
}
diff --git a/drivers/infiniband/core/umem_odp.c b/drivers/infiniband/core/umem_odp.c
index cb2742b548bb..8ee30163497d 100644
--- a/drivers/infiniband/core/umem_odp.c
+++ b/drivers/infiniband/core/umem_odp.c
@@ -254,11 +254,11 @@ struct ib_umem *ib_alloc_odp_umem(struct ib_ucontext *context,
if (!umem)
return ERR_PTR(-ENOMEM);
- umem->context = context;
- umem->length = size;
- umem->address = addr;
- umem->page_size = PAGE_SIZE;
- umem->writable = 1;
+ umem->context = context;
+ umem->length = size;
+ umem->address = addr;
+ umem->page_shift = PAGE_SHIFT;
+ umem->writable = 1;
odp_data = kzalloc(sizeof(*odp_data), GFP_KERNEL);
if (!odp_data) {
@@ -707,7 +707,7 @@ void ib_umem_odp_unmap_dma_pages(struct ib_umem *umem, u64 virt,
* invalidations, so we must make sure we free each page only
* once. */
mutex_lock(&umem->odp_data->umem_mutex);
- for (addr = virt; addr < bound; addr += (u64)umem->page_size) {
+ for (addr = virt; addr < bound; addr += BIT(umem->page_shift)) {
idx = (addr - ib_umem_start(umem)) / PAGE_SIZE;
if (umem->odp_data->page_list[idx]) {
struct page *page = umem->odp_data->page_list[idx];
diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
index 33af2e3de399..a4edb44f03bb 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
@@ -3016,7 +3016,7 @@ struct ib_mr *bnxt_re_reg_user_mr(struct ib_pd *ib_pd, u64 start, u64 length,
struct bnxt_re_mr *mr;
struct ib_umem *umem;
u64 *pbl_tbl, *pbl_tbl_orig;
- int i, umem_pgs, pages, page_shift, rc;
+ int i, umem_pgs, pages, rc;
struct scatterlist *sg;
int entry;
@@ -3062,22 +3062,22 @@ struct ib_mr *bnxt_re_reg_user_mr(struct ib_pd *ib_pd, u64 start, u64 length,
}
pbl_tbl_orig = pbl_tbl;
- page_shift = ilog2(umem->page_size);
if (umem->hugetlb) {
dev_err(rdev_to_dev(rdev), "umem hugetlb not supported!");
rc = -EFAULT;
goto fail;
}
- if (umem->page_size != PAGE_SIZE) {
- dev_err(rdev_to_dev(rdev), "umem page size unsupported!");
+
+ if (umem->page_shift != PAGE_SHIFT) {
+ dev_err(rdev_to_dev(rdev), "umem page shift unsupported!");
rc = -EFAULT;
goto fail;
}
/* Map umem buf ptrs to the PBL */
for_each_sg(umem->sg_head.sgl, sg, umem->nmap, entry) {
- pages = sg_dma_len(sg) >> page_shift;
+ pages = sg_dma_len(sg) >> umem->page_shift;
for (i = 0; i < pages; i++, pbl_tbl++)
- *pbl_tbl = sg_dma_address(sg) + (i << page_shift);
+ *pbl_tbl = sg_dma_address(sg) + (i << umem->page_shift);
}
rc = bnxt_qplib_reg_mr(&rdev->qplib_res, &mr->qplib_mr, pbl_tbl_orig,
umem_pgs, false);
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c
index 86ecd3ea6a4b..0a7568aea009 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_provider.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c
@@ -584,7 +584,7 @@ static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
return ERR_PTR(err);
}
- shift = ffs(mhp->umem->page_size) - 1;
+ shift = mhp->umem->page_shift;
n = mhp->umem->nmap;
@@ -604,7 +604,7 @@ static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
len = sg_dma_len(sg) >> shift;
for (k = 0; k < len; ++k) {
pages[i++] = cpu_to_be64(sg_dma_address(sg) +
- mhp->umem->page_size * k);
+ (k << shift));
if (i == PAGE_SIZE / sizeof *pages) {
err = iwch_write_pbl(mhp, pages, i, n);
if (err)
diff --git a/drivers/infiniband/hw/cxgb4/mem.c b/drivers/infiniband/hw/cxgb4/mem.c
index 410408f886c1..89b9acd37109 100644
--- a/drivers/infiniband/hw/cxgb4/mem.c
+++ b/drivers/infiniband/hw/cxgb4/mem.c
@@ -517,7 +517,7 @@ struct ib_mr *c4iw_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
return ERR_PTR(err);
}
- shift = ffs(mhp->umem->page_size) - 1;
+ shift = mhp->umem->page_shift;
n = mhp->umem->nmap;
err = alloc_pbl(mhp, n);
@@ -536,7 +536,7 @@ struct ib_mr *c4iw_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
len = sg_dma_len(sg) >> shift;
for (k = 0; k < len; ++k) {
pages[i++] = cpu_to_be64(sg_dma_address(sg) +
- mhp->umem->page_size * k);
+ (k << shift));
if (i == PAGE_SIZE / sizeof *pages) {
err = write_pbl(&mhp->rhp->rdev,
pages,
diff --git a/drivers/infiniband/hw/hns/hns_roce_cq.c b/drivers/infiniband/hw/hns/hns_roce_cq.c
index 589496c8fb9e..b89fd711019e 100644
--- a/drivers/infiniband/hw/hns/hns_roce_cq.c
+++ b/drivers/infiniband/hw/hns/hns_roce_cq.c
@@ -219,8 +219,7 @@ static int hns_roce_ib_get_cq_umem(struct hns_roce_dev *hr_dev,
return PTR_ERR(*umem);
ret = hns_roce_mtt_init(hr_dev, ib_umem_page_count(*umem),
- ilog2((unsigned int)(*umem)->page_size),
- &buf->hr_mtt);
+ (*umem)->page_shift, &buf->hr_mtt);
if (ret)
goto err_buf;
diff --git a/drivers/infiniband/hw/hns/hns_roce_mr.c b/drivers/infiniband/hw/hns/hns_roce_mr.c
index 4139abee3b54..024a81529281 100644
--- a/drivers/infiniband/hw/hns/hns_roce_mr.c
+++ b/drivers/infiniband/hw/hns/hns_roce_mr.c
@@ -503,7 +503,8 @@ int hns_roce_ib_umem_write_mtt(struct hns_roce_dev *hr_dev,
for_each_sg(umem->sg_head.sgl, sg, umem->nmap, entry) {
len = sg_dma_len(sg) >> mtt->page_shift;
for (k = 0; k < len; ++k) {
- pages[i++] = sg_dma_address(sg) + umem->page_size * k;
+ pages[i++] = sg_dma_address(sg) +
+ (k << umem->page_shift);
if (i == PAGE_SIZE / sizeof(u64)) {
ret = hns_roce_write_mtt(hr_dev, mtt, n, i,
pages);
@@ -563,9 +564,9 @@ struct ib_mr *hns_roce_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
}
n = ib_umem_page_count(mr->umem);
- if (mr->umem->page_size != HNS_ROCE_HEM_PAGE_SIZE) {
- dev_err(dev, "Just support 4K page size but is 0x%x now!\n",
- mr->umem->page_size);
+ if (mr->umem->page_shift != HNS_ROCE_HEM_PAGE_SHIFT) {
+ dev_err(dev, "Just support 4K page size but is 0x%lx now!\n",
+ BIT(mr->umem->page_shift));
ret = -EINVAL;
goto err_umem;
}
diff --git a/drivers/infiniband/hw/hns/hns_roce_qp.c b/drivers/infiniband/hw/hns/hns_roce_qp.c
index 3f44f2f91f03..054c52699090 100644
--- a/drivers/infiniband/hw/hns/hns_roce_qp.c
+++ b/drivers/infiniband/hw/hns/hns_roce_qp.c
@@ -437,8 +437,7 @@ static int hns_roce_create_qp_common(struct hns_roce_dev *hr_dev,
}
ret = hns_roce_mtt_init(hr_dev, ib_umem_page_count(hr_qp->umem),
- ilog2((unsigned int)hr_qp->umem->page_size),
- &hr_qp->mtt);
+ hr_qp->umem->page_shift, &hr_qp->mtt);
if (ret) {
dev_err(dev, "hns_roce_mtt_init error for create qp\n");
goto err_buf;
diff --git a/drivers/infiniband/hw/i40iw/i40iw_verbs.c b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
index 9b2849979756..378c75759be4 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_verbs.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
@@ -1345,7 +1345,7 @@ static void i40iw_copy_user_pgaddrs(struct i40iw_mr *iwmr,
{
struct ib_umem *region = iwmr->region;
struct i40iw_pbl *iwpbl = &iwmr->iwpbl;
- int chunk_pages, entry, pg_shift, i;
+ int chunk_pages, entry, i;
struct i40iw_pble_alloc *palloc = &iwpbl->pble_alloc;
struct i40iw_pble_info *pinfo;
struct scatterlist *sg;
@@ -1354,14 +1354,14 @@ static void i40iw_copy_user_pgaddrs(struct i40iw_mr *iwmr,
pinfo = (level == I40IW_LEVEL_1) ? NULL : palloc->level2.leaf;
- pg_shift = ffs(region->page_size) - 1;
for_each_sg(region->sg_head.sgl, sg, region->nmap, entry) {
- chunk_pages = sg_dma_len(sg) >> pg_shift;
+ chunk_pages = sg_dma_len(sg) >> region->page_shift;
if ((iwmr->type == IW_MEMREG_TYPE_QP) &&
!iwpbl->qp_mr.sq_page)
iwpbl->qp_mr.sq_page = sg_page(sg);
for (i = 0; i < chunk_pages; i++) {
- pg_addr = sg_dma_address(sg) + region->page_size * i;
+ pg_addr = sg_dma_address(sg) +
+ (i << region->page_shift);
if ((entry + i) == 0)
*pbl = cpu_to_le64(pg_addr & iwmr->page_msk);
@@ -1847,7 +1847,7 @@ static struct ib_mr *i40iw_reg_user_mr(struct ib_pd *pd,
iwmr->ibmr.device = pd->device;
ucontext = to_ucontext(pd->uobject->context);
- iwmr->page_size = region->page_size;
+ iwmr->page_size = PAGE_SIZE;
iwmr->page_msk = PAGE_MASK;
if (region->hugetlb && (req.reg_type == IW_MEMREG_TYPE_MEM))
diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c
index 6a0fec357dae..4f5a143fc0a7 100644
--- a/drivers/infiniband/hw/mlx4/cq.c
+++ b/drivers/infiniband/hw/mlx4/cq.c
@@ -147,7 +147,7 @@ static int mlx4_ib_get_cq_umem(struct mlx4_ib_dev *dev, struct ib_ucontext *cont
return PTR_ERR(*umem);
err = mlx4_mtt_init(dev->dev, ib_umem_page_count(*umem),
- ilog2((*umem)->page_size), &buf->mtt);
+ (*umem)->page_shift, &buf->mtt);
if (err)
goto err_buf;
diff --git a/drivers/infiniband/hw/mlx4/mr.c b/drivers/infiniband/hw/mlx4/mr.c
index 433bcdbdd680..e6f77f63da75 100644
--- a/drivers/infiniband/hw/mlx4/mr.c
+++ b/drivers/infiniband/hw/mlx4/mr.c
@@ -107,7 +107,7 @@ int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt,
len = sg_dma_len(sg) >> mtt->page_shift;
for (k = 0; k < len; ++k) {
pages[i++] = sg_dma_address(sg) +
- umem->page_size * k;
+ (k << umem->page_shift);
/*
* Be friendly to mlx4_write_mtt() and
* pass it chunks of appropriate size.
@@ -155,7 +155,7 @@ struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
}
n = ib_umem_page_count(mr->umem);
- shift = ilog2(mr->umem->page_size);
+ shift = mr->umem->page_shift;
err = mlx4_mr_alloc(dev->dev, to_mpd(pd)->pdn, virt_addr, length,
convert_access(access_flags), n, shift, &mr->mmr);
@@ -239,7 +239,7 @@ int mlx4_ib_rereg_user_mr(struct ib_mr *mr, int flags,
goto release_mpt_entry;
}
n = ib_umem_page_count(mmr->umem);
- shift = ilog2(mmr->umem->page_size);
+ shift = mmr->umem->page_shift;
err = mlx4_mr_rereg_mem_write(dev->dev, &mmr->mmr,
virt_addr, length, n, shift,
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index c34eebc7db65..8f382318f888 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -745,7 +745,7 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
}
err = mlx4_mtt_init(dev->dev, ib_umem_page_count(qp->umem),
- ilog2(qp->umem->page_size), &qp->mtt);
+ qp->umem->page_shift, &qp->mtt);
if (err)
goto err_buf;
diff --git a/drivers/infiniband/hw/mlx4/srq.c b/drivers/infiniband/hw/mlx4/srq.c
index 7dd3f267f06b..e32dd58937a8 100644
--- a/drivers/infiniband/hw/mlx4/srq.c
+++ b/drivers/infiniband/hw/mlx4/srq.c
@@ -122,7 +122,7 @@ struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
}
err = mlx4_mtt_init(dev->dev, ib_umem_page_count(srq->umem),
- ilog2(srq->umem->page_size), &srq->mtt);
+ srq->umem->page_shift, &srq->mtt);
if (err)
goto err_buf;
diff --git a/drivers/infiniband/hw/mlx5/mem.c b/drivers/infiniband/hw/mlx5/mem.c
index 778d8a18925f..a0c2af964249 100644
--- a/drivers/infiniband/hw/mlx5/mem.c
+++ b/drivers/infiniband/hw/mlx5/mem.c
@@ -59,7 +59,7 @@ void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr,
u64 pfn;
struct scatterlist *sg;
int entry;
- unsigned long page_shift = ilog2(umem->page_size);
+ unsigned long page_shift = umem->page_shift;
/* With ODP we must always match OS page size. */
if (umem->odp_data) {
@@ -156,7 +156,7 @@ void __mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem,
int page_shift, size_t offset, size_t num_pages,
__be64 *pas, int access_flags)
{
- unsigned long umem_page_shift = ilog2(umem->page_size);
+ unsigned long umem_page_shift = umem->page_shift;
int shift = page_shift - umem_page_shift;
int mask = (1 << shift) - 1;
int i, k, idx;
diff --git a/drivers/infiniband/hw/mlx5/odp.c b/drivers/infiniband/hw/mlx5/odp.c
index d7b12f0750e2..3bfa3a9c3be0 100644
--- a/drivers/infiniband/hw/mlx5/odp.c
+++ b/drivers/infiniband/hw/mlx5/odp.c
@@ -206,7 +206,7 @@ void mlx5_ib_invalidate_range(struct ib_umem *umem, unsigned long start,
* but they will write 0s as well, so no difference in the end result.
*/
- for (addr = start; addr < end; addr += (u64)umem->page_size) {
+ for (addr = start; addr < end; addr += BIT(umem->page_shift)) {
idx = (addr - ib_umem_start(umem)) / PAGE_SIZE;
/*
* Strive to write the MTTs in chunks, but avoid overwriting
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index 22d0e6ee5af6..e1b8940558d2 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -937,7 +937,7 @@ static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
goto err;
}
- shift = ffs(mr->umem->page_size) - 1;
+ shift = mr->umem->page_shift;
n = mr->umem->nmap;
mr->mtt = mthca_alloc_mtt(dev, n);
@@ -959,8 +959,7 @@ static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
for_each_sg(mr->umem->sg_head.sgl, sg, mr->umem->nmap, entry) {
len = sg_dma_len(sg) >> shift;
for (k = 0; k < len; ++k) {
- pages[i++] = sg_dma_address(sg) +
- mr->umem->page_size * k;
+ pages[i++] = sg_dma_address(sg) + (k << shift);
/*
* Be friendly to write_mtt and pass it chunks
* of appropriate size.
diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
index ccf0a4cffe9c..11f7c308c7ad 100644
--- a/drivers/infiniband/hw/nes/nes_verbs.c
+++ b/drivers/infiniband/hw/nes/nes_verbs.c
@@ -2165,9 +2165,9 @@ static struct ib_mr *nes_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
}
nes_debug(NES_DBG_MR, "User base = 0x%lX, Virt base = 0x%lX, length = %u,"
- " offset = %u, page size = %u.\n",
+ " offset = %u, page size = %lu.\n",
(unsigned long int)start, (unsigned long int)virt, (u32)length,
- ib_umem_offset(region), region->page_size);
+ ib_umem_offset(region), BIT(region->page_shift));
skip_pages = ((u32)ib_umem_offset(region)) >> 12;
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
index bc9fb144e57b..e6c65852797d 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
@@ -914,21 +914,18 @@ static void build_user_pbes(struct ocrdma_dev *dev, struct ocrdma_mr *mr,
pbe = (struct ocrdma_pbe *)pbl_tbl->va;
pbe_cnt = 0;
- shift = ilog2(umem->page_size);
+ shift = umem->page_shift;
for_each_sg(umem->sg_head.sgl, sg, umem->nmap, entry) {
pages = sg_dma_len(sg) >> shift;
for (pg_cnt = 0; pg_cnt < pages; pg_cnt++) {
/* store the page address in pbe */
pbe->pa_lo =
- cpu_to_le32(sg_dma_address
- (sg) +
- (umem->page_size * pg_cnt));
+ cpu_to_le32(sg_dma_address(sg) +
+ (pg_cnt << shift));
pbe->pa_hi =
- cpu_to_le32(upper_32_bits
- ((sg_dma_address
- (sg) +
- umem->page_size * pg_cnt)));
+ cpu_to_le32(upper_32_bits(sg_dma_address(sg) +
+ (pg_cnt << shift)));
pbe_cnt += 1;
total_num_pbes += 1;
pbe++;
@@ -978,7 +975,7 @@ struct ib_mr *ocrdma_reg_user_mr(struct ib_pd *ibpd, u64 start, u64 len,
if (status)
goto umem_err;
- mr->hwmr.pbe_size = mr->umem->page_size;
+ mr->hwmr.pbe_size = BIT(mr->umem->page_shift);
mr->hwmr.fbo = ib_umem_offset(mr->umem);
mr->hwmr.va = usr_addr;
mr->hwmr.len = len;
diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c
index 6b3bb32803bd..e741cc662606 100644
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -680,16 +680,16 @@ static void qedr_populate_pbls(struct qedr_dev *dev, struct ib_umem *umem,
pbe_cnt = 0;
- shift = ilog2(umem->page_size);
+ shift = umem->page_shift;
for_each_sg(umem->sg_head.sgl, sg, umem->nmap, entry) {
pages = sg_dma_len(sg) >> shift;
for (pg_cnt = 0; pg_cnt < pages; pg_cnt++) {
/* store the page address in pbe */
pbe->lo = cpu_to_le32(sg_dma_address(sg) +
- umem->page_size * pg_cnt);
+ (pg_cnt << shift));
addr = upper_32_bits(sg_dma_address(sg) +
- umem->page_size * pg_cnt);
+ (pg_cnt << shift));
pbe->hi = cpu_to_le32(addr);
pbe_cnt++;
total_num_pbes++;
@@ -2189,7 +2189,7 @@ struct ib_mr *qedr_reg_user_mr(struct ib_pd *ibpd, u64 start, u64 len,
mr->hw_mr.pbl_ptr = mr->info.pbl_table[0].pa;
mr->hw_mr.pbl_two_level = mr->info.pbl_info.two_layered;
mr->hw_mr.pbl_page_size_log = ilog2(mr->info.pbl_info.pbl_size);
- mr->hw_mr.page_size_log = ilog2(mr->umem->page_size);
+ mr->hw_mr.page_size_log = mr->umem->page_shift;
mr->hw_mr.fbo = ib_umem_offset(mr->umem);
mr->hw_mr.length = len;
mr->hw_mr.vaddr = usr_addr;
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_misc.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_misc.c
index 948b5ccd2a70..6ef4df6c8c4a 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_misc.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_misc.c
@@ -194,7 +194,7 @@ int pvrdma_page_dir_insert_umem(struct pvrdma_page_dir *pdir,
len = sg_dma_len(sg) >> PAGE_SHIFT;
for (j = 0; j < len; j++) {
dma_addr_t addr = sg_dma_address(sg) +
- umem->page_size * j;
+ (j << umem->page_shift);
ret = pvrdma_page_dir_insert_dma(pdir, i, addr);
if (ret)
diff --git a/drivers/infiniband/sw/rdmavt/mr.c b/drivers/infiniband/sw/rdmavt/mr.c
index ae30b6838d79..4e989e1caa40 100644
--- a/drivers/infiniband/sw/rdmavt/mr.c
+++ b/drivers/infiniband/sw/rdmavt/mr.c
@@ -405,8 +405,7 @@ struct ib_mr *rvt_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
mr->mr.access_flags = mr_access_flags;
mr->umem = umem;
- if (is_power_of_2(umem->page_size))
- mr->mr.page_shift = ilog2(umem->page_size);
+ mr->mr.page_shift = umem->page_shift;
m = 0;
n = 0;
for_each_sg(umem->sg_head.sgl, sg, umem->nmap, entry) {
@@ -418,8 +417,9 @@ struct ib_mr *rvt_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
goto bail_inval;
}
mr->mr.map[m]->segs[n].vaddr = vaddr;
- mr->mr.map[m]->segs[n].length = umem->page_size;
- trace_rvt_mr_user_seg(&mr->mr, m, n, vaddr, umem->page_size);
+ mr->mr.map[m]->segs[n].length = BIT(umem->page_shift);
+ trace_rvt_mr_user_seg(&mr->mr, m, n, vaddr,
+ BIT(umem->page_shift));
n++;
if (n == RVT_SEGSZ) {
m++;
diff --git a/drivers/infiniband/sw/rxe/rxe_mr.c b/drivers/infiniband/sw/rxe/rxe_mr.c
index 37eea7441ca4..251058b3403c 100644
--- a/drivers/infiniband/sw/rxe/rxe_mr.c
+++ b/drivers/infiniband/sw/rxe/rxe_mr.c
@@ -191,10 +191,8 @@ int rxe_mem_init_user(struct rxe_dev *rxe, struct rxe_pd *pd, u64 start,
goto err1;
}
- WARN_ON_ONCE(!is_power_of_2(umem->page_size));
-
- mem->page_shift = ilog2(umem->page_size);
- mem->page_mask = umem->page_size - 1;
+ mem->page_shift = umem->page_shift;
+ mem->page_mask = BIT(umem->page_shift) - 1;
num_buf = 0;
map = mem->map;
@@ -210,7 +208,7 @@ int rxe_mem_init_user(struct rxe_dev *rxe, struct rxe_pd *pd, u64 start,
}
buf->addr = (uintptr_t)vaddr;
- buf->size = umem->page_size;
+ buf->size = BIT(umem->page_shift);
num_buf++;
buf++;
diff --git a/include/rdma/ib_umem.h b/include/rdma/ib_umem.h
index 2d83cfd7e6ce..7f4af1e1ae64 100644
--- a/include/rdma/ib_umem.h
+++ b/include/rdma/ib_umem.h
@@ -44,7 +44,7 @@ struct ib_umem {
struct ib_ucontext *context;
size_t length;
unsigned long address;
- int page_size;
+ int page_shift;
int writable;
int hugetlb;
struct work_struct work;
@@ -60,7 +60,7 @@ struct ib_umem {
/* Returns the offset of the umem start relative to the first page. */
static inline int ib_umem_offset(struct ib_umem *umem)
{
- return umem->address & ((unsigned long)umem->page_size - 1);
+ return umem->address & (BIT(umem->page_shift) - 1);
}
/* Returns the first page of an ODP umem. */
--
2.12.0
--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
