qed: Allow more than 16 VFs

In multi-function modes, PFs are currently limited to using 16 VFs -
But that limitation would also currently apply in case there's a single
PCI function exposed, where no such restriction should have existed.

This lifts the restriction for the default mode; User should be able
to start the maximum number of VFs as appear in the PCI config space.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/qlogic/qed/qed_sriov.c

@@ -3099,6 +3099,9 @@ static int qed_sriov_enable(struct qed_dev *cdev, int num)
 			goto err;
 		}
 
+		if (IS_MF_DEFAULT(hwfn))
+			limit = MAX_NUM_VFS_BB / hwfn->num_funcs_on_engine;
+
 		memset(&sb_cnt_info, 0, sizeof(sb_cnt_info));
 		qed_int_get_num_sbs(hwfn, &sb_cnt_info);
 		num_sbs = min_t(int, sb_cnt_info.sb_free_blk, limit);