From: Andrew Rybchenko <arybchenko@solarflare.com>
Date: Tue, 14 Nov 2017 11:32:34 +0000 (+0000)
Subject: net/sfc: avoid Rx queue setup failure if thresholds are set
X-Git-Tag: spdx-start~815
X-Git-Url: http://git.droids-corp.org/?p=dpdk.git;a=commitdiff_plain;h=fdd7361b68021d049da9085680d55d2298c0ca3b

net/sfc: avoid Rx queue setup failure if thresholds are set

Rx queue prefetch, host and writeback thresholds are used for
performance fine-tuning and not applicable to Solarflare NICs.
It is safe to just log warning and do not fail Rx queue setup
to be more friendly to DPDK applications which hardcode it.

Fixes: ce35b05c635e ("net/sfc: implement Rx queue setup release operations")
Cc: stable@dpdk.org

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
---

diff --git a/drivers/net/sfc/sfc_rx.c b/drivers/net/sfc/sfc_rx.c
index 2ae095b237..7816393b75 100644
--- a/drivers/net/sfc/sfc_rx.c
+++ b/drivers/net/sfc/sfc_rx.c
@@ -780,9 +780,8 @@ sfc_rx_qcheck_conf(struct sfc_adapter *sa, uint16_t nb_rx_desc,
 	if (rx_conf->rx_thresh.pthresh != 0 ||
 	    rx_conf->rx_thresh.hthresh != 0 ||
 	    rx_conf->rx_thresh.wthresh != 0) {
-		sfc_err(sa,
+		sfc_warn(sa,
 			"RxQ prefetch/host/writeback thresholds are not supported");
-		rc = EINVAL;
 	}
 
 	if (rx_conf->rx_free_thresh > rx_free_thresh_max) {