From: Alexander Duyck Date: Fri, 11 May 2012 08:33:16 +0000 (+0000) Subject: ixgbevf: Add netdev to ring structure X-Git-Tag: MMI-PSA29.97-13-9~16302^2~94 X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=fb40195cc975b14c5d4e44863ea996f999ba5aee;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git ixgbevf: Add netdev to ring structure This change adds the netdev to the ring structure. This allows for a quicker transition from ring to netdev without having to go from ring to adapter to netdev. Signed-off-by: Alexander Duyck Signed-off-by: Greg Rose Tested-by: Sibai Li Signed-off-by: Jeff Kirsher --- diff --git a/drivers/net/ethernet/intel/ixgbevf/ethtool.c b/drivers/net/ethernet/intel/ixgbevf/ethtool.c index 15947c9122e1..2c3b20edd84d 100644 --- a/drivers/net/ethernet/intel/ixgbevf/ethtool.c +++ b/drivers/net/ethernet/intel/ixgbevf/ethtool.c @@ -359,8 +359,7 @@ static int ixgbevf_set_ringparam(struct net_device *netdev, if (err) { while (i) { i--; - ixgbevf_free_tx_resources(adapter, - &tx_ring[i]); + ixgbevf_free_tx_resources(adapter, &tx_ring[i]); } goto err_tx_ring_setup; } @@ -374,8 +373,7 @@ static int ixgbevf_set_ringparam(struct net_device *netdev, if (err) { while (i) { i--; - ixgbevf_free_rx_resources(adapter, - &rx_ring[i]); + ixgbevf_free_rx_resources(adapter, &rx_ring[i]); } goto err_rx_ring_setup; } diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h index 1f1376515f70..e167d1bb6dea 100644 --- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h +++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h @@ -56,6 +56,8 @@ struct ixgbevf_rx_buffer { struct ixgbevf_ring { struct ixgbevf_ring *next; + struct net_device *netdev; + struct device *dev; struct ixgbevf_adapter *adapter; /* backlink */ void *desc; /* descriptor ring memory */ dma_addr_t dma; /* phys. address of descriptor ring */ diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c index c27ce447e04e..1c53e13b466d 100644 --- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c +++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c @@ -187,7 +187,6 @@ static bool ixgbevf_clean_tx_irq(struct ixgbevf_q_vector *q_vector, struct ixgbevf_ring *tx_ring) { struct ixgbevf_adapter *adapter = q_vector->adapter; - struct net_device *netdev = adapter->netdev; union ixgbe_adv_tx_desc *tx_desc, *eop_desc; struct ixgbevf_tx_buffer *tx_buffer_info; unsigned int i, eop, count = 0; @@ -241,15 +240,17 @@ cont_loop: tx_ring->next_to_clean = i; #define TX_WAKE_THRESHOLD (DESC_NEEDED * 2) - if (unlikely(count && netif_carrier_ok(netdev) && + if (unlikely(count && netif_carrier_ok(tx_ring->netdev) && (IXGBE_DESC_UNUSED(tx_ring) >= TX_WAKE_THRESHOLD))) { /* Make sure that anybody stopping the queue after this * sees the new next_to_clean. */ smp_mb(); - if (__netif_subqueue_stopped(netdev, tx_ring->queue_index) && + if (__netif_subqueue_stopped(tx_ring->netdev, + tx_ring->queue_index) && !test_bit(__IXGBEVF_DOWN, &adapter->state)) { - netif_wake_subqueue(netdev, tx_ring->queue_index); + netif_wake_subqueue(tx_ring->netdev, + tx_ring->queue_index); ++adapter->restart_queue; } } @@ -292,12 +293,13 @@ static void ixgbevf_receive_skb(struct ixgbevf_q_vector *q_vector, * @skb: skb currently being received and modified **/ static inline void ixgbevf_rx_checksum(struct ixgbevf_adapter *adapter, + struct ixgbevf_ring *ring, u32 status_err, struct sk_buff *skb) { skb_checksum_none_assert(skb); /* Rx csum disabled */ - if (!(adapter->netdev->features & NETIF_F_RXCSUM)) + if (!(ring->netdev->features & NETIF_F_RXCSUM)) return; /* if IP and error */ @@ -332,31 +334,21 @@ static void ixgbevf_alloc_rx_buffers(struct ixgbevf_adapter *adapter, union ixgbe_adv_rx_desc *rx_desc; struct ixgbevf_rx_buffer *bi; struct sk_buff *skb; - unsigned int i; - unsigned int bufsz = rx_ring->rx_buf_len + NET_IP_ALIGN; + unsigned int i = rx_ring->next_to_use; - i = rx_ring->next_to_use; bi = &rx_ring->rx_buffer_info[i]; while (cleaned_count--) { rx_desc = IXGBEVF_RX_DESC(rx_ring, i); skb = bi->skb; if (!skb) { - skb = netdev_alloc_skb(adapter->netdev, - bufsz); - + skb = netdev_alloc_skb_ip_align(rx_ring->netdev, + rx_ring->rx_buf_len); if (!skb) { adapter->alloc_rx_buff_failed++; goto no_buffers; } - /* - * Make buffer alignment 2 beyond a 16 byte boundary - * this will result in a 16 byte aligned IP header after - * the 14 byte MAC header is removed - */ - skb_reserve(skb, NET_IP_ALIGN); - bi->skb = skb; } if (!bi->dma) { @@ -449,7 +441,7 @@ static bool ixgbevf_clean_rx_irq(struct ixgbevf_q_vector *q_vector, goto next_desc; } - ixgbevf_rx_checksum(adapter, staterr, skb); + ixgbevf_rx_checksum(adapter, rx_ring, staterr, skb); /* probably a little skewed due to removing CRC */ total_rx_bytes += skb->len; @@ -464,7 +456,7 @@ static bool ixgbevf_clean_rx_irq(struct ixgbevf_q_vector *q_vector, if (header_fixup_len < 14) skb_push(skb, header_fixup_len); } - skb->protocol = eth_type_trans(skb, adapter->netdev); + skb->protocol = eth_type_trans(skb, rx_ring->netdev); ixgbevf_receive_skb(q_vector, skb, staterr, rx_ring, rx_desc); @@ -1669,12 +1661,16 @@ static int ixgbevf_alloc_queues(struct ixgbevf_adapter *adapter) adapter->tx_ring[i].count = adapter->tx_ring_count; adapter->tx_ring[i].queue_index = i; adapter->tx_ring[i].reg_idx = i; + adapter->tx_ring[i].dev = &adapter->pdev->dev; + adapter->tx_ring[i].netdev = adapter->netdev; } for (i = 0; i < adapter->num_rx_queues; i++) { adapter->rx_ring[i].count = adapter->rx_ring_count; adapter->rx_ring[i].queue_index = i; adapter->rx_ring[i].reg_idx = i; + adapter->rx_ring[i].dev = &adapter->pdev->dev; + adapter->rx_ring[i].netdev = adapter->netdev; } return 0; @@ -2721,12 +2717,11 @@ static void ixgbevf_tx_queue(struct ixgbevf_adapter *adapter, writel(i, adapter->hw.hw_addr + tx_ring->tail); } -static int __ixgbevf_maybe_stop_tx(struct net_device *netdev, - struct ixgbevf_ring *tx_ring, int size) +static int __ixgbevf_maybe_stop_tx(struct ixgbevf_ring *tx_ring, int size) { - struct ixgbevf_adapter *adapter = netdev_priv(netdev); + struct ixgbevf_adapter *adapter = netdev_priv(tx_ring->netdev); - netif_stop_subqueue(netdev, tx_ring->queue_index); + netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index); /* Herbert's original patch had: * smp_mb__after_netif_stop_queue(); * but since that doesn't exist yet, just open code it. */ @@ -2738,17 +2733,16 @@ static int __ixgbevf_maybe_stop_tx(struct net_device *netdev, return -EBUSY; /* A reprieve! - use start_queue because it doesn't call schedule */ - netif_start_subqueue(netdev, tx_ring->queue_index); + netif_start_subqueue(tx_ring->netdev, tx_ring->queue_index); ++adapter->restart_queue; return 0; } -static int ixgbevf_maybe_stop_tx(struct net_device *netdev, - struct ixgbevf_ring *tx_ring, int size) +static int ixgbevf_maybe_stop_tx(struct ixgbevf_ring *tx_ring, int size) { if (likely(IXGBE_DESC_UNUSED(tx_ring) >= size)) return 0; - return __ixgbevf_maybe_stop_tx(netdev, tx_ring, size); + return __ixgbevf_maybe_stop_tx(tx_ring, size); } static int ixgbevf_xmit_frame(struct sk_buff *skb, struct net_device *netdev) @@ -2779,7 +2773,7 @@ static int ixgbevf_xmit_frame(struct sk_buff *skb, struct net_device *netdev) #else count += skb_shinfo(skb)->nr_frags; #endif - if (ixgbevf_maybe_stop_tx(netdev, tx_ring, count + 3)) { + if (ixgbevf_maybe_stop_tx(tx_ring, count + 3)) { adapter->tx_busy++; return NETDEV_TX_BUSY; } @@ -2810,7 +2804,7 @@ static int ixgbevf_xmit_frame(struct sk_buff *skb, struct net_device *netdev) ixgbevf_tx_map(adapter, tx_ring, skb, tx_flags, first), skb->len, hdr_len); - ixgbevf_maybe_stop_tx(netdev, tx_ring, DESC_NEEDED); + ixgbevf_maybe_stop_tx(tx_ring, DESC_NEEDED); return NETDEV_TX_OK; }