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Date: Fri, 7 Oct 2011 00:18:45 -0700
From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To: davem@...emloft.net
Cc: Alexander Duyck <alexander.h.duyck@...el.com>,
netdev@...r.kernel.org, gospo@...hat.com, sassmann@...hat.com,
Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next 12/13] igb: Combine all flag info fields into a single tx_flags structure
From: Alexander Duyck <alexander.h.duyck@...el.com>
This change is meant to combine all of the TX flags fields into one u32
flags field so that it can be stored into the tx_buffer_info structure.
This includes the time stamp flag as well as mapped_as_page flag info.
Signed-off-by: Alexander Duyck <alexander.h.duyck@...el.com>
Tested-by: Aaron Brown <aaron.f.brown@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
drivers/net/ethernet/intel/igb/igb.h | 9 +++++++++
drivers/net/ethernet/intel/igb/igb_main.c | 24 ++++++++----------------
2 files changed, 17 insertions(+), 16 deletions(-)
diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h
index 1608110..b71d186 100644
--- a/drivers/net/ethernet/intel/igb/igb.h
+++ b/drivers/net/ethernet/intel/igb/igb.h
@@ -130,6 +130,15 @@ struct vf_data_storage {
#define IGB_MNG_VLAN_NONE -1
+#define IGB_TX_FLAGS_CSUM 0x00000001
+#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_MAPPED_AS_PAGE 0x00000020
+#define IGB_TX_FLAGS_VLAN_MASK 0xffff0000
+#define IGB_TX_FLAGS_VLAN_SHIFT 16
+
/* wrapper around a pointer to a socket buffer,
* so a DMA handle can be stored along with the buffer */
struct igb_tx_buffer {
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 3ebeb3e..dc93d64 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -3143,7 +3143,7 @@ void igb_unmap_and_free_tx_resource(struct igb_ring *tx_ring,
struct igb_tx_buffer *buffer_info)
{
if (buffer_info->dma) {
- if (buffer_info->mapped_as_page)
+ if (buffer_info->tx_flags & IGB_TX_FLAGS_MAPPED_AS_PAGE)
dma_unmap_page(tx_ring->dev,
buffer_info->dma,
buffer_info->length,
@@ -3162,7 +3162,6 @@ void igb_unmap_and_free_tx_resource(struct igb_ring *tx_ring,
buffer_info->time_stamp = 0;
buffer_info->length = 0;
buffer_info->next_to_watch = NULL;
- buffer_info->mapped_as_page = false;
}
/**
@@ -3955,14 +3954,6 @@ set_itr_now:
}
}
-#define IGB_TX_FLAGS_CSUM 0x00000001
-#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
-
void igb_tx_ctxtdesc(struct igb_ring *tx_ring, u32 vlan_macip_lens,
u32 type_tucmd, u32 mss_l4len_idx)
{
@@ -4151,7 +4142,7 @@ static __le32 igb_tx_olinfo_status(u32 tx_flags, unsigned int paylen,
#define IGB_MAX_DATA_PER_TXD (1<<IGB_MAX_TXD_PWR)
static inline int igb_tx_map(struct igb_ring *tx_ring, struct sk_buff *skb,
- struct igb_tx_buffer *first)
+ struct igb_tx_buffer *first, u32 tx_flags)
{
struct igb_tx_buffer *buffer_info;
struct device *dev = tx_ring->dev;
@@ -4165,11 +4156,14 @@ static inline int igb_tx_map(struct igb_ring *tx_ring, struct sk_buff *skb,
buffer_info = &tx_ring->tx_buffer_info[i];
BUG_ON(hlen >= IGB_MAX_DATA_PER_TXD);
buffer_info->length = hlen;
+ buffer_info->tx_flags = tx_flags;
buffer_info->dma = dma_map_single(dev, skb->data, hlen,
DMA_TO_DEVICE);
if (dma_mapping_error(dev, buffer_info->dma))
goto dma_error;
+ tx_flags |= IGB_TX_FLAGS_MAPPED_AS_PAGE;
+
for (f = 0; f < skb_shinfo(skb)->nr_frags; f++) {
struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[f];
unsigned int len = frag->size;
@@ -4182,7 +4176,7 @@ static inline int igb_tx_map(struct igb_ring *tx_ring, struct sk_buff *skb,
buffer_info = &tx_ring->tx_buffer_info[i];
BUG_ON(len >= IGB_MAX_DATA_PER_TXD);
buffer_info->length = len;
- buffer_info->mapped_as_page = true;
+ buffer_info->tx_flags = tx_flags;
buffer_info->dma = skb_frag_dma_map(dev, frag, 0, len,
DMA_TO_DEVICE);
if (dma_mapping_error(dev, buffer_info->dma))
@@ -4191,7 +4185,6 @@ static inline int igb_tx_map(struct igb_ring *tx_ring, struct sk_buff *skb,
}
buffer_info->skb = skb;
- buffer_info->tx_flags = skb_shinfo(skb)->tx_flags;
/* multiply data chunks by size of headers */
buffer_info->bytecount = ((gso_segs - 1) * hlen) + skb->len;
buffer_info->gso_segs = gso_segs;
@@ -4211,7 +4204,6 @@ dma_error:
buffer_info->dma = 0;
buffer_info->time_stamp = 0;
buffer_info->length = 0;
- buffer_info->mapped_as_page = false;
/* clear timestamp and dma mappings for remaining portion of packet */
while (count--) {
@@ -4347,7 +4339,7 @@ netdev_tx_t igb_xmit_frame_ring(struct sk_buff *skb,
* count reflects descriptors mapped, if 0 or less then mapping error
* has occurred and we need to rewind the descriptor queue
*/
- count = igb_tx_map(tx_ring, skb, first);
+ count = igb_tx_map(tx_ring, skb, first, tx_flags);
if (!count) {
dev_kfree_skb_any(skb);
first->time_stamp = 0;
@@ -5567,7 +5559,7 @@ static void igb_tx_hwtstamp(struct igb_q_vector *q_vector,
u64 regval;
/* if skb does not support hw timestamp or TX stamp not valid exit */
- if (likely(!(buffer_info->tx_flags & SKBTX_HW_TSTAMP)) ||
+ if (likely(!(buffer_info->tx_flags & IGB_TX_FLAGS_TSTAMP)) ||
!(rd32(E1000_TSYNCTXCTL) & E1000_TSYNCTXCTL_VALID))
return;
--
1.7.6.4
--
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