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path: root/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
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Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4vf/sge.c')
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4vf/sge.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/sge.c b/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
index 482f6de6817d..cc92c6984737 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
@@ -2243,8 +2243,12 @@ int t4vf_sge_alloc_rxq(struct adapter *adapter, struct sge_rspq *rspq,
* Allocate the ring for the hardware free list (with space
* for its status page) along with the associated software
* descriptor ring. The free list size needs to be a multiple
- * of the Egress Queue Unit.
+ * of the Egress Queue Unit and at least 2 Egress Units larger
+ * than the SGE's Egress Congrestion Threshold
+ * (fl_starve_thres - 1).
*/
+ if (fl->size < s->fl_starve_thres - 1 + 2 * FL_PER_EQ_UNIT)
+ fl->size = s->fl_starve_thres - 1 + 2 * FL_PER_EQ_UNIT;
fl->size = roundup(fl->size, FL_PER_EQ_UNIT);
fl->desc = alloc_ring(adapter->pdev_dev, fl->size,
sizeof(__be64), sizeof(struct rx_sw_desc),