[PATCH WIP 23/43] ocrdma: Allocate a private page list in ib_alloc_mr

[Sagi Grimberg]

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

diff --git a/drivers/infiniband/hw/ocrdma/ocrdma.h 
b/drivers/infiniband/hw/ocrdma/ocrdma.h
index b396344..37deea2 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma.h
+++ b/drivers/infiniband/hw/ocrdma/ocrdma.h
@@ -178,6 +178,8 @@ struct ocrdma_mr {
        struct ib_mr ibmr;
        struct ib_umem *umem;
        struct ocrdma_hw_mr hwmr;
+       u64 *pl;
+       u32 npages;
 };
 
 struct ocrdma_stats {
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c 
b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
index fb97db1..a764cb9 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
@@ -957,6 +957,7 @@ int ocrdma_dereg_mr(struct ib_mr *ib_mr)
 
        (void) ocrdma_mbx_dealloc_lkey(dev, mr->hwmr.fr_mr, mr->hwmr.lkey);
 
+       kfree(mr->pl);
        ocrdma_free_mr_pbl_tbl(dev, &mr->hwmr);
 
        /* it could be user registered memory. */
@@ -3003,6 +3004,12 @@ struct ib_mr *ocrdma_alloc_mr(struct ib_pd *ibpd,
        if (!mr)
                return ERR_PTR(-ENOMEM);
 
+       mr->pl = kcalloc(max_entries, sizeof(u64), GFP_KERNEL);
+       if (!mr->pl) {
+               status = -ENOMEM;
+               goto pl_err;
+       }
+
        status = ocrdma_get_pbl_info(dev, mr, max_entries);
        if (status)
                goto pbl_err;
@@ -3026,6 +3033,8 @@ struct ib_mr *ocrdma_alloc_mr(struct ib_pd *ibpd,
 mbx_err:
        ocrdma_free_mr_pbl_tbl(dev, &mr->hwmr);
 pbl_err:
+       kfree(mr->pl);
+pl_err:
        kfree(mr);
        return ERR_PTR(-ENOMEM);
 }
-- 
1.8.4.3

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