diff options
Diffstat (limited to 'drivers/net/ethernet/intel/i40e/i40e_txrx.c')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_txrx.c | 44 |
1 files changed, 22 insertions, 22 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c index fac4fb37f87b..43d88dd66ed4 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c @@ -1,7 +1,7 @@ /******************************************************************************* * * Intel Ethernet Controller XL710 Family Linux Driver - * Copyright(c) 2013 Intel Corporation. + * Copyright(c) 2013 - 2014 Intel Corporation. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, @@ -12,9 +12,8 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * You should have received a copy of the GNU General Public License along + * with this program. If not, see <http://www.gnu.org/licenses/>. * * The full GNU General Public License is included in this distribution in * the file called "COPYING". @@ -775,7 +774,7 @@ void i40e_alloc_rx_buffers(struct i40e_ring *rx_ring, u16 cleaned_count) skb = netdev_alloc_skb_ip_align(rx_ring->netdev, rx_ring->rx_buf_len); if (!skb) { - rx_ring->rx_stats.alloc_rx_buff_failed++; + rx_ring->rx_stats.alloc_buff_failed++; goto no_buffers; } /* initialize queue mapping */ @@ -789,7 +788,7 @@ void i40e_alloc_rx_buffers(struct i40e_ring *rx_ring, u16 cleaned_count) rx_ring->rx_buf_len, DMA_FROM_DEVICE); if (dma_mapping_error(rx_ring->dev, bi->dma)) { - rx_ring->rx_stats.alloc_rx_buff_failed++; + rx_ring->rx_stats.alloc_buff_failed++; bi->dma = 0; goto no_buffers; } @@ -799,7 +798,7 @@ void i40e_alloc_rx_buffers(struct i40e_ring *rx_ring, u16 cleaned_count) if (!bi->page) { bi->page = alloc_page(GFP_ATOMIC); if (!bi->page) { - rx_ring->rx_stats.alloc_rx_page_failed++; + rx_ring->rx_stats.alloc_page_failed++; goto no_buffers; } } @@ -814,7 +813,7 @@ void i40e_alloc_rx_buffers(struct i40e_ring *rx_ring, u16 cleaned_count) DMA_FROM_DEVICE); if (dma_mapping_error(rx_ring->dev, bi->page_dma)) { - rx_ring->rx_stats.alloc_rx_page_failed++; + rx_ring->rx_stats.alloc_page_failed++; bi->page_dma = 0; goto no_buffers; } @@ -991,15 +990,15 @@ static int i40e_clean_rx_irq(struct i40e_ring *rx_ring, int budget) skb = rx_bi->skb; prefetch(skb->data); - rx_packet_len = (qword & I40E_RXD_QW1_LENGTH_PBUF_MASK) - >> I40E_RXD_QW1_LENGTH_PBUF_SHIFT; - rx_header_len = (qword & I40E_RXD_QW1_LENGTH_HBUF_MASK) - >> I40E_RXD_QW1_LENGTH_HBUF_SHIFT; - rx_sph = (qword & I40E_RXD_QW1_LENGTH_SPH_MASK) - >> I40E_RXD_QW1_LENGTH_SPH_SHIFT; + rx_packet_len = (qword & I40E_RXD_QW1_LENGTH_PBUF_MASK) >> + I40E_RXD_QW1_LENGTH_PBUF_SHIFT; + rx_header_len = (qword & I40E_RXD_QW1_LENGTH_HBUF_MASK) >> + I40E_RXD_QW1_LENGTH_HBUF_SHIFT; + rx_sph = (qword & I40E_RXD_QW1_LENGTH_SPH_MASK) >> + I40E_RXD_QW1_LENGTH_SPH_SHIFT; - rx_error = (qword & I40E_RXD_QW1_ERROR_MASK) - >> I40E_RXD_QW1_ERROR_SHIFT; + rx_error = (qword & I40E_RXD_QW1_ERROR_MASK) >> + I40E_RXD_QW1_ERROR_SHIFT; rx_hbo = rx_error & (1 << I40E_RX_DESC_ERROR_HBO_SHIFT); rx_error &= ~(1 << I40E_RX_DESC_ERROR_HBO_SHIFT); @@ -1115,8 +1114,8 @@ next_desc: /* use prefetched values */ rx_desc = next_rxd; qword = le64_to_cpu(rx_desc->wb.qword1.status_error_len); - rx_status = (qword & I40E_RXD_QW1_STATUS_MASK) - >> I40E_RXD_QW1_STATUS_SHIFT; + rx_status = (qword & I40E_RXD_QW1_STATUS_MASK) >> + I40E_RXD_QW1_STATUS_SHIFT; } rx_ring->next_to_clean = i; @@ -1415,10 +1414,10 @@ static int i40e_tso(struct i40e_ring *tx_ring, struct sk_buff *skb, cd_cmd = I40E_TX_CTX_DESC_TSO; cd_tso_len = skb->len - *hdr_len; cd_mss = skb_shinfo(skb)->gso_size; - *cd_type_cmd_tso_mss |= ((u64)cd_cmd << I40E_TXD_CTX_QW1_CMD_SHIFT) - | ((u64)cd_tso_len - << I40E_TXD_CTX_QW1_TSO_LEN_SHIFT) - | ((u64)cd_mss << I40E_TXD_CTX_QW1_MSS_SHIFT); + *cd_type_cmd_tso_mss |= ((u64)cd_cmd << I40E_TXD_CTX_QW1_CMD_SHIFT) | + ((u64)cd_tso_len << + I40E_TXD_CTX_QW1_TSO_LEN_SHIFT) | + ((u64)cd_mss << I40E_TXD_CTX_QW1_MSS_SHIFT); return 1; } @@ -1716,6 +1715,7 @@ dma_error: static inline int __i40e_maybe_stop_tx(struct i40e_ring *tx_ring, int size) { netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index); + /* Memory barrier before checking head and tail */ smp_mb(); /* Check again in a case another CPU has just made room available. */ |