X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=drivers%2Fnet%2Fsfc%2Fsfc_port.c;h=87affc95a95d5236247a8b0ae8374ae2e60b84cd;hb=7555c20f2c2df8dbcf648e97a7005966048a0353;hp=ee96bcdebe1f3dcdb8a699596881f7500aa90abc;hpb=76f89ef557ff345dfa606e797e1765404babce56;p=deb_dpdk.git

diff --git a/drivers/net/sfc/sfc_port.c b/drivers/net/sfc/sfc_port.c
index ee96bcde..87affc95 100644
--- a/drivers/net/sfc/sfc_port.c
+++ b/drivers/net/sfc/sfc_port.c
@@ -242,6 +242,18 @@ sfc_port_start(struct sfc_adapter *sa)
 		}
 	}
 
+	if ((port->mac_stats_update_period_ms != 0) &&
+	    port->mac_stats_periodic_dma_supported) {
+		/*
+		 * Request an explicit MAC stats upload immediately to
+		 * preclude bogus figures readback if the user decides
+		 * to read stats before periodic DMA is really started
+		 */
+		rc = efx_mac_stats_upload(sa->nic, &port->mac_stats_dma_mem);
+		if (rc != 0)
+			goto fail_mac_stats_upload;
+	}
+
 	sfc_log_init(sa, "disable MAC drain");
 	rc = efx_mac_drain(sa->nic, B_FALSE);
 	if (rc != 0)
@@ -262,6 +274,7 @@ fail_mac_drain:
 	(void)efx_mac_stats_periodic(sa->nic, &port->mac_stats_dma_mem,
 				     0, B_FALSE);
 
+fail_mac_stats_upload:
 fail_mac_stats_periodic:
 fail_mcast_address_list_set:
 fail_mac_filter_set: