commit e50728effe1126eae39445ba144078b1305b7047
author Mintz, Yuval <Yuval.Mintz@cavium.com> Sun Mar 19 13:08:20 2017 +0200
committer David S. Miller <davem@davemloft.net> Tue Mar 21 19:02:37 2017 -0700
tree 1bf60a8ef0b83724b5b9822a4b96d6798c131448
parent e99a21cb81214293f158a0ff09328818e24af47b

qed: Always publish VF link from leading hwfn

The link information exists only on the leading hwfn,
but some of its derivatives [e.g., min/max rate] need to
be configured for each hwfn.
When re-basing the VF link view, use the leading hwfn
information as basis for all existing hwfns to allow
said configurations to stick.

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

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

diff --git a/drivers/net/ethernet/qlogic/qed/qed_sriov.c b/drivers/net/ethernet/qlogic/qed/qed_sriov.c
index 0d37d73..18fc6e6 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_sriov.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_sriov.c
@@ -3945,6 +3945,7 @@ static int qed_get_vf_config(struct qed_dev *cdev,
 
 void qed_inform_vf_link_state(struct qed_hwfn *hwfn)
 {
+	struct qed_hwfn *lead_hwfn = QED_LEADING_HWFN(hwfn->cdev);
 	struct qed_mcp_link_capabilities caps;
 	struct qed_mcp_link_params params;
 	struct qed_mcp_link_state link;
@@ -3961,9 +3962,15 @@ void qed_inform_vf_link_state(struct qed_hwfn *hwfn)
 		if (!vf_info)
 			continue;
 
-		memcpy(&params, qed_mcp_get_link_params(hwfn), sizeof(params));
-		memcpy(&link, qed_mcp_get_link_state(hwfn), sizeof(link));
-		memcpy(&caps, qed_mcp_get_link_capabilities(hwfn),
+		/* Only hwfn0 is actually interested in the link speed.
+		 * But since only it would receive an MFW indication of link,
+		 * need to take configuration from it - otherwise things like
+		 * rate limiting for hwfn1 VF would not work.
+		 */
+		memcpy(&params, qed_mcp_get_link_params(lead_hwfn),
+		       sizeof(params));
+		memcpy(&link, qed_mcp_get_link_state(lead_hwfn), sizeof(link));
+		memcpy(&caps, qed_mcp_get_link_capabilities(lead_hwfn),
 		       sizeof(caps));
 
 		/* Modify link according to the VF's configured link state */