> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Vlad Zolotarov
> Sent: Monday, March 09, 2015 10:21 AM
> To: dev at dpdk.org
> Subject: [dpdk-dev] [PATCH v5 1/3] ixgbe: Cleanups
>
> - Removed the not needed casting.
> - ixgbe_dev_rx_init(): shorten the lines by defining a local alias
> variable to access
> &dev->data->dev_conf.rxmode.
>
> Signed-off-by: Vlad Zolotarov <vladz at cloudius-systems.com>
> ---
> lib/librte_pmd_ixgbe/ixgbe_rxtx.c | 27 ++++++++++++---------------
> 1 file changed, 12 insertions(+), 15 deletions(-)
>
> diff --git a/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
> b/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
> index 72c65df..609b5fd 100644
> --- a/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
> +++ b/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
> @@ -1032,8 +1032,7 @@ ixgbe_rx_alloc_bufs(struct igb_rx_queue *rxq)
> int diag, i;
>
> /* allocate buffers in bulk directly into the S/W ring */
> - alloc_idx = (uint16_t)(rxq->rx_free_trigger -
> - (rxq->rx_free_thresh - 1));
> + alloc_idx = rxq->rx_free_trigger - (rxq->rx_free_thresh - 1);
I think all these extra casts came in to keep icc 12.* compiling without
warnings.
I am agree that they are unnecessary.
Though if we still have to support icc 12.* we either need to keep them, or find
some other way to keep it happy.
Konstantin
> rxep = &rxq->sw_ring[alloc_idx];
> diag = rte_mempool_get_bulk(rxq->mb_pool, (void *)rxep,
> rxq->rx_free_thresh);
> @@ -1061,10 +1060,9 @@ ixgbe_rx_alloc_bufs(struct igb_rx_queue *rxq)
> IXGBE_PCI_REG_WRITE(rxq->rdt_reg_addr, rxq->rx_free_trigger);
>
> /* update state of internal queue structure */
> - rxq->rx_free_trigger = (uint16_t)(rxq->rx_free_trigger +
> - rxq->rx_free_thresh);
> + rxq->rx_free_trigger = rxq->rx_free_trigger + rxq->rx_free_thresh;
> if (rxq->rx_free_trigger >= rxq->nb_rx_desc)
> - rxq->rx_free_trigger = (uint16_t)(rxq->rx_free_thresh - 1);
> + rxq->rx_free_trigger = rxq->rx_free_thresh - 1;
>
> /* no errors */
> return 0;
> @@ -3560,6 +3558,7 @@ ixgbe_dev_rx_init(struct rte_eth_dev *dev)
> uint32_t rxcsum;
> uint16_t buf_size;
> uint16_t i;
> + struct rte_eth_rxmode *rx_conf = &dev->data->dev_conf.rxmode;
>
> PMD_INIT_FUNC_TRACE();
> hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
> @@ -3582,7 +3581,7 @@ ixgbe_dev_rx_init(struct rte_eth_dev *dev)
> * Configure CRC stripping, if any.
> */
> hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0);
> - if (dev->data->dev_conf.rxmode.hw_strip_crc)
> + if (rx_conf->hw_strip_crc)
> hlreg0 |= IXGBE_HLREG0_RXCRCSTRP;
> else
> hlreg0 &= ~IXGBE_HLREG0_RXCRCSTRP;
> @@ -3590,11 +3589,11 @@ ixgbe_dev_rx_init(struct rte_eth_dev *dev)
> /*
> * Configure jumbo frame support, if any.
> */
> - if (dev->data->dev_conf.rxmode.jumbo_frame == 1) {
> + if (rx_conf->jumbo_frame == 1) {
> hlreg0 |= IXGBE_HLREG0_JUMBOEN;
> maxfrs = IXGBE_READ_REG(hw, IXGBE_MAXFRS);
> maxfrs &= 0x0000FFFF;
> - maxfrs |= (dev->data->dev_conf.rxmode.max_rx_pkt_len << 16);
> + maxfrs |= (rx_conf->max_rx_pkt_len << 16);
> IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, maxfrs);
> } else
> hlreg0 &= ~IXGBE_HLREG0_JUMBOEN;
> @@ -3618,9 +3617,7 @@ ixgbe_dev_rx_init(struct rte_eth_dev *dev)
> * Reset crc_len in case it was changed after queue setup by a
> * call to configure.
> */
> - rxq->crc_len = (uint8_t)
> - ((dev->data->dev_conf.rxmode.hw_strip_crc) ? 0 :
> - ETHER_CRC_LEN);
> + rxq->crc_len = rx_conf->hw_strip_crc ? 0 : ETHER_CRC_LEN;
>
> /* Setup the Base and Length of the Rx Descriptor Rings */
> bus_addr = rxq->rx_ring_phys_addr;
> @@ -3638,7 +3635,7 @@ ixgbe_dev_rx_init(struct rte_eth_dev *dev)
> /*
> * Configure Header Split
> */
> - if (dev->data->dev_conf.rxmode.header_split) {
> + if (rx_conf->header_split) {
> if (hw->mac.type == ixgbe_mac_82599EB) {
> /* Must setup the PSRTYPE register */
> uint32_t psrtype;
> @@ -3648,7 +3645,7 @@ ixgbe_dev_rx_init(struct rte_eth_dev *dev)
> IXGBE_PSRTYPE_IPV6HDR;
> IXGBE_WRITE_REG(hw,
> IXGBE_PSRTYPE(rxq->reg_idx), psrtype);
> }
> - srrctl = ((dev->data->dev_conf.rxmode.split_hdr_size <<
> + srrctl = ((rx_conf->split_hdr_size <<
> IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT) &
> IXGBE_SRRCTL_BSIZEHDR_MASK);
> srrctl |= IXGBE_SRRCTL_DESCTYPE_HDR_SPLIT_ALWAYS;
> @@ -3699,7 +3696,7 @@ ixgbe_dev_rx_init(struct rte_eth_dev *dev)
> */
> rxcsum = IXGBE_READ_REG(hw, IXGBE_RXCSUM);
> rxcsum |= IXGBE_RXCSUM_PCSD;
> - if (dev->data->dev_conf.rxmode.hw_ip_checksum)
> + if (rx_conf->hw_ip_checksum)
> rxcsum |= IXGBE_RXCSUM_IPPCSE;
> else
> rxcsum &= ~IXGBE_RXCSUM_IPPCSE;
> @@ -3709,7 +3706,7 @@ ixgbe_dev_rx_init(struct rte_eth_dev *dev)
> if (hw->mac.type == ixgbe_mac_82599EB ||
> hw->mac.type == ixgbe_mac_X540) {
> rdrxctl = IXGBE_READ_REG(hw, IXGBE_RDRXCTL);
> - if (dev->data->dev_conf.rxmode.hw_strip_crc)
> + if (rx_conf->hw_strip_crc)
> rdrxctl |= IXGBE_RDRXCTL_CRCSTRIP;
> else
> rdrxctl &= ~IXGBE_RDRXCTL_CRCSTRIP;
> --
> 2.1.0
