diff mbox

[net-next,6/6] qed: Reserve VF feature before PF

Message ID 1490277020-31208-7-git-send-email-Yuval.Mintz@cavium.com
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Mintz, Yuval March 23, 2017, 1:50 p.m. UTC
Align the driver feature distribution with the flow utilized
by the management firmware - first reserve L2 queues for
VFs and use all the remaining for the PF.

The current distribution might lead to PFs with an enormous
amount of queues, but at the same time leave us with insufficient
resources for starting all VFs.

Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
---
 drivers/net/ethernet/qlogic/qed/qed_dev.c | 27 ++++++++++++++++-----------
 1 file changed, 16 insertions(+), 11 deletions(-)
diff mbox

Patch

diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c
index 6bdac4f..11e45f0 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dev.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c
@@ -1565,17 +1565,22 @@  static void qed_hw_set_feat(struct qed_hwfn *p_hwfn)
 		non_l2_sbs = feat_num[QED_RDMA_CNQ];
 	}
 
-	feat_num[QED_PF_L2_QUE] = min_t(u32,
-					RESC_NUM(p_hwfn, QED_SB) -
-					non_l2_sbs,
-					RESC_NUM(p_hwfn, QED_L2_QUEUE));
-
-	memset(&sb_cnt_info, 0, sizeof(sb_cnt_info));
-	qed_int_get_num_sbs(p_hwfn, &sb_cnt_info);
-	feat_num[QED_VF_L2_QUE] =
-	    min_t(u32,
-		  RESC_NUM(p_hwfn, QED_L2_QUEUE) -
-		  FEAT_NUM(p_hwfn, QED_PF_L2_QUE), sb_cnt_info.sb_iov_cnt);
+	if (p_hwfn->hw_info.personality == QED_PCI_ETH_ROCE ||
+	    p_hwfn->hw_info.personality == QED_PCI_ETH) {
+		/* Start by allocating VF queues, then PF's */
+		memset(&sb_cnt_info, 0, sizeof(sb_cnt_info));
+		qed_int_get_num_sbs(p_hwfn, &sb_cnt_info);
+		feat_num[QED_VF_L2_QUE] = min_t(u32,
+						RESC_NUM(p_hwfn, QED_L2_QUEUE),
+						sb_cnt_info.sb_iov_cnt);
+		feat_num[QED_PF_L2_QUE] = min_t(u32,
+						RESC_NUM(p_hwfn, QED_SB) -
+						non_l2_sbs,
+						RESC_NUM(p_hwfn,
+							 QED_L2_QUEUE) -
+						FEAT_NUM(p_hwfn,
+							 QED_VF_L2_QUE));
+	}
 
 	DP_VERBOSE(p_hwfn,
 		   NETIF_MSG_PROBE,