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tg3: Reintroduce tg3_tx_ring_info 

The following patches will require the use of an additional flag in the
ring_info structure.  The use of this flag is tx path specific, so this
patch defines a specialized ring_info structure.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Matt Carlson 2011-07-27 14:20:46 +00:00 committed by David S. Miller
parent bca0beb936
commit df8944cf5c
2 changed files with 12 additions and 7 deletions
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12
drivers/net/tg3.c
View File

@ -4824,7 +4824,7 @@ static void tg3_tx(struct tg3_napi *tnapi)
txq = netdev_get_tx_queue(tp->dev, index);
while (sw_idx != hw_idx) {
struct ring_info *ri = &tnapi->tx_buffers[sw_idx];
struct tg3_tx_ring_info *ri = &tnapi->tx_buffers[sw_idx];
struct sk_buff *skb = ri->skb;
int i, tx_bug = 0;
@ -5929,7 +5929,7 @@ static void tg3_skb_error_unmap(struct tg3_napi *tnapi,
{
int i;
u32 entry = tnapi->tx_prod;
struct ring_info *txb = &tnapi->tx_buffers[entry];
struct tg3_tx_ring_info *txb = &tnapi->tx_buffers[entry];
pci_unmap_single(tnapi->tp->pdev,
dma_unmap_addr(txb, mapping),
@ -6603,7 +6603,7 @@ static void tg3_free_rings(struct tg3 *tp)
continue;
for (i = 0; i < TG3_TX_RING_SIZE; ) {
struct ring_info *txp;
struct tg3_tx_ring_info *txp;
struct sk_buff *skb;
unsigned int k;
@ -6762,9 +6762,9 @@ static int tg3_alloc_consistent(struct tg3 *tp)
*/
if ((!i && !tg3_flag(tp, ENABLE_TSS)) ||
(i && tg3_flag(tp, ENABLE_TSS))) {
tnapi->tx_buffers = kzalloc(sizeof(struct ring_info) *
TG3_TX_RING_SIZE,
GFP_KERNEL);
tnapi->tx_buffers = kzalloc(
sizeof(struct tg3_tx_ring_info) *
TG3_TX_RING_SIZE, GFP_KERNEL);
if (!tnapi->tx_buffers)
goto err_out;

7
drivers/net/tg3.h
View File

@ -2652,6 +2652,11 @@ struct ring_info {
DEFINE_DMA_UNMAP_ADDR(mapping);
};
struct tg3_tx_ring_info {
struct sk_buff *skb;
DEFINE_DMA_UNMAP_ADDR(mapping);
};
struct tg3_link_config {
/* Describes what we're trying to get. */
u32 advertising;
@ -2816,7 +2821,7 @@ struct tg3_napi {
u32 last_tx_cons;
u32 prodmbox;
struct tg3_tx_buffer_desc *tx_ring;
struct ring_info *tx_buffers;
struct tg3_tx_ring_info *tx_buffers;
dma_addr_t status_mapping;
dma_addr_t rx_rcb_mapping;