diff options
Diffstat (limited to 'drivers/net/igb')
| -rw-r--r-- | drivers/net/igb/igb_main.c | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index cb1acca9ac91..8f8b7ccc7db5 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -3245,9 +3245,9 @@ set_itr_now: #define IGB_TX_FLAGS_VLAN 0x00000002 #define IGB_TX_FLAGS_TSO 0x00000004 #define IGB_TX_FLAGS_IPV4 0x00000008 -#define IGB_TX_FLAGS_TSTAMP 0x00000010 -#define IGB_TX_FLAGS_VLAN_MASK 0xffff0000 -#define IGB_TX_FLAGS_VLAN_SHIFT 16 +#define IGB_TX_FLAGS_TSTAMP 0x00000010 +#define IGB_TX_FLAGS_VLAN_MASK 0xffff0000 +#define IGB_TX_FLAGS_VLAN_SHIFT 16 static inline int igb_tso_adv(struct igb_ring *tx_ring, struct sk_buff *skb, u32 tx_flags, u8 *hdr_len) @@ -3346,6 +3346,7 @@ static inline bool igb_tx_csum_adv(struct igb_ring *tx_ring, if (tx_flags & IGB_TX_FLAGS_VLAN) info |= (tx_flags & IGB_TX_FLAGS_VLAN_MASK); + info |= (skb_network_offset(skb) << E1000_ADVTXD_MACLEN_SHIFT); if (skb->ip_summed == CHECKSUM_PARTIAL) info |= skb_network_header_len(skb); @@ -3462,17 +3463,17 @@ static inline int igb_tx_map_adv(struct igb_ring *tx_ring, struct sk_buff *skb, tx_ring->buffer_info[i].skb = skb; tx_ring->buffer_info[first].next_to_watch = i; - return count + 1; + return ++count; } static inline void igb_tx_queue_adv(struct igb_ring *tx_ring, int tx_flags, int count, u32 paylen, u8 hdr_len) { - union e1000_adv_tx_desc *tx_desc = NULL; + union e1000_adv_tx_desc *tx_desc; struct igb_buffer *buffer_info; u32 olinfo_status = 0, cmd_type_len; - unsigned int i; + unsigned int i = tx_ring->next_to_use; cmd_type_len = (E1000_ADVTXD_DTYP_DATA | E1000_ADVTXD_DCMD_IFCS | E1000_ADVTXD_DCMD_DEXT); @@ -3505,18 +3506,18 @@ static inline void igb_tx_queue_adv(struct igb_ring *tx_ring, olinfo_status |= ((paylen - hdr_len) << E1000_ADVTXD_PAYLEN_SHIFT); - i = tx_ring->next_to_use; - while (count--) { + do { buffer_info = &tx_ring->buffer_info[i]; tx_desc = E1000_TX_DESC_ADV(*tx_ring, i); tx_desc->read.buffer_addr = cpu_to_le64(buffer_info->dma); tx_desc->read.cmd_type_len = cpu_to_le32(cmd_type_len | buffer_info->length); tx_desc->read.olinfo_status = cpu_to_le32(olinfo_status); + count--; i++; if (i == tx_ring->count) i = 0; - } + } while (count > 0); tx_desc->read.cmd_type_len |= cpu_to_le32(IGB_ADVTXD_DCMD); /* Force memory writes to complete before letting h/w @@ -3568,8 +3569,7 @@ netdev_tx_t igb_xmit_frame_ring_adv(struct sk_buff *skb, unsigned int first; unsigned int tx_flags = 0; u8 hdr_len = 0; - int count = 0; - int tso = 0; + int tso = 0, count; union skb_shared_tx *shtx = skb_tx(skb); /* need: 1 descriptor per page, @@ -3587,7 +3587,7 @@ netdev_tx_t igb_xmit_frame_ring_adv(struct sk_buff *skb, tx_flags |= IGB_TX_FLAGS_TSTAMP; } - if (adapter->vlgrp && vlan_tx_tag_present(skb)) { + if (vlan_tx_tag_present(skb) && adapter->vlgrp) { tx_flags |= IGB_TX_FLAGS_VLAN; tx_flags |= (vlan_tx_tag_get(skb) << IGB_TX_FLAGS_VLAN_SHIFT); } @@ -3598,6 +3598,7 @@ netdev_tx_t igb_xmit_frame_ring_adv(struct sk_buff *skb, first = tx_ring->next_to_use; if (skb_is_gso(skb)) { tso = igb_tso_adv(tx_ring, skb, tx_flags, &hdr_len); + if (tso < 0) { dev_kfree_skb_any(skb); return NETDEV_TX_OK; @@ -3611,12 +3612,11 @@ netdev_tx_t igb_xmit_frame_ring_adv(struct sk_buff *skb, tx_flags |= IGB_TX_FLAGS_CSUM; /* - * count reflects descriptors mapped, if 0 then mapping error + * count reflects descriptors mapped, if 0 or less then mapping error * has occured and we need to rewind the descriptor queue */ count = igb_tx_map_adv(tx_ring, skb, first); - - if (!count) { + if (count <= 0) { dev_kfree_skb_any(skb); tx_ring->buffer_info[first].time_stamp = 0; tx_ring->next_to_use = first; |