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[PATCH] mv643xx_eth: Refactor tx command queuing code

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Simplify and remove redundant code for filling transmit descriptors.
No changes in features; it's just a code reorganization/cleanup.

Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Dale Farnsworth
2006-03-03 10:02:05 -07:00
committed by Jeff Garzik
parent cd6478c8ae
commit c8aaea25e0
2 changed files with 160 additions and 412 deletions
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drivers/net/mv643xx_eth.c
+154 -399
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File diff suppressed because it is too large Load Diff
drivers/net/mv643xx_eth.h
+6 -13
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@@ -330,7 +330,6 @@ struct mv643xx_private {
u32 tx_sram_size; /* Size of tx sram area */
int rx_resource_err; /* Rx ring resource error flag */
int tx_resource_err; /* Tx ring resource error flag */
/* Tx/Rx rings managment indexes fields. For driver use */
@@ -339,10 +338,6 @@ struct mv643xx_private {
/* Next available and first returning Tx resource */
int tx_curr_desc_q, tx_used_desc_q;
#ifdef MV643XX_CHECKSUM_OFFLOAD_TX
int tx_first_desc_q;
u32 tx_first_command;
#endif
#ifdef MV643XX_TX_FAST_REFILL
u32 tx_clean_threshold;
@@ -350,12 +345,12 @@ struct mv643xx_private {
struct eth_rx_desc *p_rx_desc_area;
dma_addr_t rx_desc_dma;
unsigned int rx_desc_area_size;
int rx_desc_area_size;
struct sk_buff **rx_skb;
struct eth_tx_desc *p_tx_desc_area;
dma_addr_t tx_desc_dma;
unsigned int tx_desc_area_size;
int tx_desc_area_size;
struct sk_buff **tx_skb;
struct work_struct tx_timeout_task;
@@ -367,13 +362,13 @@ struct mv643xx_private {
struct mv643xx_mib_counters mib_counters;
spinlock_t lock;
/* Size of Tx Ring per queue */
unsigned int tx_ring_size;
int tx_ring_size;
/* Number of tx descriptors in use */
unsigned int tx_desc_count;
int tx_desc_count;
/* Size of Rx Ring per queue */
unsigned int rx_ring_size;
int rx_ring_size;
/* Number of rx descriptors in use */
unsigned int rx_desc_count;
int rx_desc_count;
/*
* rx_task used to fill RX ring out of bottom half context
@@ -416,8 +411,6 @@ static void eth_port_read_smi_reg(unsigned int eth_port_num,
static void eth_clear_mib_counters(unsigned int eth_port_num);
/* Port data flow control routines */
static ETH_FUNC_RET_STATUS eth_port_send(struct mv643xx_private *mp,
struct pkt_info *p_pkt_info);
static ETH_FUNC_RET_STATUS eth_tx_return_desc(struct mv643xx_private *mp,
struct pkt_info *p_pkt_info);
static ETH_FUNC_RET_STATUS eth_port_receive(struct mv643xx_private *mp,