[PATCH WIP 24/43] cxgb3: Allocate a provate page list in ib_alloc_mr

[Sagi Grimberg]

Signed-off-by: Sagi Grimberg <sa...@mellanox.com>
---
 drivers/infiniband/hw/cxgb3/iwch_provider.c | 9 +++++++++
 drivers/infiniband/hw/cxgb3/iwch_provider.h | 2 ++
 2 files changed, 11 insertions(+)

diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c 
b/drivers/infiniband/hw/cxgb3/iwch_provider.c
index af55b79..c9368e6 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_provider.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c
@@ -463,6 +463,7 @@ static int iwch_dereg_mr(struct ib_mr *ib_mr)
                return -EINVAL;
 
        mhp = to_iwch_mr(ib_mr);
+       kfree(mhp->pl);
        rhp = mhp->rhp;
        mmid = mhp->attr.stag >> 8;
        cxio_dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size,
@@ -817,6 +818,12 @@ static struct ib_mr *iwch_alloc_mr(struct ib_pd *pd,
        if (!mhp)
                goto err;
 
+       mhp->pl = kcalloc(max_entries, sizeof(u64), GFP_KERNEL);
+       if (!mhp->pl) {
+               ret = -ENOMEM;
+               goto pl_err;
+       }
+
        mhp->rhp = rhp;
        ret = iwch_alloc_pbl(mhp, max_entries);
        if (ret)
@@ -843,6 +850,8 @@ err3:
 err2:
        iwch_free_pbl(mhp);
 err1:
+       kfree(mhp->pl);
+pl_err:
        kfree(mhp);
 err:
        return ERR_PTR(ret);
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.h 
b/drivers/infiniband/hw/cxgb3/iwch_provider.h
index 87c14b0..8e16da9 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_provider.h
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.h
@@ -77,6 +77,8 @@ struct iwch_mr {
        struct iwch_dev *rhp;
        u64 kva;
        struct tpt_attributes attr;
+       u64 *pl;
+       u32 npages;
 };
 
 typedef struct iwch_mw iwch_mw_handle;
-- 
1.8.4.3

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