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Diffstat (limited to 'drivers/net/igb')
-rw-r--r--drivers/net/igb/igb_main.c30
1 files changed, 15 insertions, 15 deletions
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index cb1acca9ac9..8f8b7ccc7db 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;