RDMA/cxgb4: Add debugfs RDMA memory stats
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
diff --git a/drivers/infiniband/hw/cxgb4/provider.c b/drivers/infiniband/hw/cxgb4/provider.c
index be1c18f..8d58736 100644
--- a/drivers/infiniband/hw/cxgb4/provider.c
+++ b/drivers/infiniband/hw/cxgb4/provider.c
@@ -190,6 +190,9 @@
PDBG("%s ibpd %p pdid 0x%x\n", __func__, pd, php->pdid);
c4iw_put_resource(&rhp->rdev.resource.pdid_fifo, php->pdid,
&rhp->rdev.resource.pdid_fifo_lock);
+ mutex_lock(&rhp->rdev.stats.lock);
+ rhp->rdev.stats.pd.cur--;
+ mutex_unlock(&rhp->rdev.stats.lock);
kfree(php);
return 0;
}
@@ -222,6 +225,11 @@
return ERR_PTR(-EFAULT);
}
}
+ mutex_lock(&rhp->rdev.stats.lock);
+ rhp->rdev.stats.pd.cur++;
+ if (rhp->rdev.stats.pd.cur > rhp->rdev.stats.pd.max)
+ rhp->rdev.stats.pd.max = rhp->rdev.stats.pd.cur;
+ mutex_unlock(&rhp->rdev.stats.lock);
PDBG("%s pdid 0x%0x ptr 0x%p\n", __func__, pdid, php);
return &php->ibpd;
}