From: Wei Dai Date: Thu, 20 Apr 2017 03:06:06 +0000 (+0800) Subject: net/ixgbe: align register setting when RSC is disabled X-Git-Tag: spdx-start~3361 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=b826efba6de4;p=dpdk.git net/ixgbe: align register setting when RSC is disabled When Receive Side Coalescing (RSC) is not used, the RSC Disable (RSC_DIS) filed of register Receive Filter Control Register (RFCTL) should be set according to ixgbe datasheet. Signed-off-by: Wei Dai Acked-by: Wenzhuo Lu --- diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c index e8b51076fb..1e0789595f 100644 --- a/drivers/net/ixgbe/ixgbe_rxtx.c +++ b/drivers/net/ixgbe/ixgbe_rxtx.c @@ -4522,6 +4522,7 @@ ixgbe_set_rsc(struct rte_eth_dev *dev) bool rsc_capable = false; uint16_t i; uint32_t rdrxctl; + uint32_t rfctl; /* Sanity check */ dev->dev_ops->dev_infos_get(dev, &dev_info); @@ -4549,22 +4550,18 @@ ixgbe_set_rsc(struct rte_eth_dev *dev) } /* RFCTL configuration */ - if (rsc_capable) { - uint32_t rfctl = IXGBE_READ_REG(hw, IXGBE_RFCTL); - - if (rx_conf->enable_lro) - /* - * Since NFS packets coalescing is not supported - clear - * RFCTL.NFSW_DIS and RFCTL.NFSR_DIS when RSC is - * enabled. - */ - rfctl &= ~(IXGBE_RFCTL_RSC_DIS | IXGBE_RFCTL_NFSW_DIS | - IXGBE_RFCTL_NFSR_DIS); - else - rfctl |= IXGBE_RFCTL_RSC_DIS; - - IXGBE_WRITE_REG(hw, IXGBE_RFCTL, rfctl); - } + rfctl = IXGBE_READ_REG(hw, IXGBE_RFCTL); + if ((rsc_capable) && (rx_conf->enable_lro)) + /* + * Since NFS packets coalescing is not supported - clear + * RFCTL.NFSW_DIS and RFCTL.NFSR_DIS when RSC is + * enabled. + */ + rfctl &= ~(IXGBE_RFCTL_RSC_DIS | IXGBE_RFCTL_NFSW_DIS | + IXGBE_RFCTL_NFSR_DIS); + else + rfctl |= IXGBE_RFCTL_RSC_DIS; + IXGBE_WRITE_REG(hw, IXGBE_RFCTL, rfctl); /* If LRO hasn't been requested - we are done here. */ if (!rx_conf->enable_lro)