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

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Tx 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 Tx queue setup
to be more friendly to DPDK applications which hardcode it.

Fixes: b1b7ad933b39 ("net/sfc: set up and release Tx queues")
Cc: stable@dpdk.org

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
This commit is contained in:
Andrew Rybchenko 2017-11-14 11:32:35 +00:00 committed by Thomas Monjalon
parent fdd7361b68
commit 048da2530d
1 changed files with 1 additions and 2 deletions
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3
drivers/net/sfc/sfc_tx.c
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@ -79,9 +79,8 @@ sfc_tx_qcheck_conf(struct sfc_adapter *sa, uint16_t nb_tx_desc,
if (tx_conf->tx_thresh.pthresh != 0 ||
tx_conf->tx_thresh.hthresh != 0 ||
tx_conf->tx_thresh.wthresh != 0) {
sfc_err(sa,
sfc_warn(sa,
"prefetch/host/writeback thresholds are not supported");
rc = EINVAL;
}
if (((flags & ETH_TXQ_FLAGS_NOMULTSEGS) == 0) &&