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

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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: ce35b05c63 ("net/sfc: implement Rx queue setup release operations")
Cc: stable@dpdk.org

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
This commit is contained in:
Andrew Rybchenko 2017-11-14 11:32:34 +00:00 committed by Thomas Monjalon
parent cb98affeef
commit fdd7361b68
1 changed files with 1 additions and 2 deletions
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3
drivers/net/sfc/sfc_rx.c
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@ -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) {