RDMA/cxgb4: add missing qpid increment

missing qpid increment leads to skipping few qpids while allocating QP.
This eventually leads to adapter running out of qpids after establishing
fewer connections than it actually supports.
Current patch increments the qpid correctly.

Fixes: cfdda9d76436 ("RDMA/cxgb4: Add driver for Chelsio T4 RNIC")
Link: https://lore.kernel.org/r/20210415151422.9139-1-bharat@chelsio.com
Signed-off-by: Potnuri Bharat Teja <bharat@chelsio.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

diff --git a/drivers/infiniband/hw/cxgb4/resource.c b/drivers/infiniband/hw/cxgb4/resource.c
index 5c95c78..e800e8e 100644 (file)
--- a/drivers/infiniband/hw/cxgb4/resource.c
+++ b/drivers/infiniband/hw/cxgb4/resource.c
@@ -216,7 +216,7 @@ u32 c4iw_get_qpid(struct c4iw_rdev *rdev, struct c4iw_dev_ucontext *uctx)
                        goto out;
                entry->qid = qid;
                list_add_tail(&entry->entry, &uctx->cqids);
-               for (i = qid; i & rdev->qpmask; i++) {
+               for (i = qid + 1; i & rdev->qpmask; i++) {
                        entry = kmalloc(sizeof(*entry), GFP_KERNEL);
                        if (!entry)
                                goto out;