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net/ixgbe: align register setting when RSC is disabled

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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 <wei.dai@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
This commit is contained in:
Wei Dai 2017-04-20 11:06:06 +08:00 committed by Ferruh Yigit
parent bfe977683a
commit b826efba6d
1 changed files with 13 additions and 16 deletions
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29
drivers/net/ixgbe/ixgbe_rxtx.c
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@ -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)