mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-29 04:09:39 +00:00
Code Issues Releases Wiki Activity

mv643xx_eth: clean up rx/tx descriptor field defines

Browse source 
Remove the unused rx/tx descriptor field defines, and move the ones
that are actually used to the actual definitions of the rx/tx
descriptor format.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Dale Farnsworth <dale@farnsworth.org>
This commit is contained in:
Lennert Buytenhek 2008-06-01 01:41:29 +02:00
parent a2a41689fe
commit 7ca72a3b16
1 changed files with 28 additions and 54 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

82
drivers/net/mv643xx_eth.c
View file

@ -176,57 +176,6 @@ static char mv643xx_driver_version[] = "1.0";
#define ETH_SMI_OPCODE_WRITE 0 /* Completion of Read */
#define ETH_SMI_OPCODE_READ 0x04000000 /* Operation is in progress */
/* Interrupt Cause Register Bit Definitions */
/* SDMA command status fields macros */
/* Tx & Rx descriptors status */
#define ETH_ERROR_SUMMARY 0x00000001
/* Tx & Rx descriptors command */
#define ETH_BUFFER_OWNED_BY_DMA 0x80000000
/* Tx descriptors status */
#define ETH_LC_ERROR 0
#define ETH_UR_ERROR 0x00000002
#define ETH_RL_ERROR 0x00000004
#define ETH_LLC_SNAP_FORMAT 0x00000200
/* Rx descriptors status */
#define ETH_OVERRUN_ERROR 0x00000002
#define ETH_MAX_FRAME_LENGTH_ERROR 0x00000004
#define ETH_RESOURCE_ERROR 0x00000006
#define ETH_VLAN_TAGGED 0x00080000
#define ETH_BPDU_FRAME 0x00100000
#define ETH_UDP_FRAME_OVER_IP_V_4 0x00200000
#define ETH_OTHER_FRAME_TYPE 0x00400000
#define ETH_LAYER_2_IS_ETH_V_2 0x00800000
#define ETH_FRAME_TYPE_IP_V_4 0x01000000
#define ETH_FRAME_HEADER_OK 0x02000000
#define ETH_RX_LAST_DESC 0x04000000
#define ETH_RX_FIRST_DESC 0x08000000
#define ETH_UNKNOWN_DESTINATION_ADDR 0x10000000
#define ETH_RX_ENABLE_INTERRUPT 0x20000000
#define ETH_LAYER_4_CHECKSUM_OK 0x40000000
/* Rx descriptors byte count */
#define ETH_FRAME_FRAGMENTED 0x00000004
/* Tx descriptors command */
#define ETH_LAYER_4_CHECKSUM_FIRST_DESC 0x00000400
#define ETH_FRAME_SET_TO_VLAN 0x00008000
#define ETH_UDP_FRAME 0x00010000
#define ETH_GEN_TCP_UDP_CHECKSUM 0x00020000
#define ETH_GEN_IP_V_4_CHECKSUM 0x00040000
#define ETH_ZERO_PADDING 0x00080000
#define ETH_TX_LAST_DESC 0x00100000
#define ETH_TX_FIRST_DESC 0x00200000
#define ETH_GEN_CRC 0x00400000
#define ETH_TX_ENABLE_INTERRUPT 0x00800000
#define ETH_AUTO_MODE 0x40000000
#define ETH_TX_IHL_SHIFT 11
/* typedefs */
typedef enum _eth_func_ret_status {
@ -238,8 +187,8 @@ typedef enum _eth_func_ret_status {
ETH_QUEUE_LAST_RESOURCE /* Ring resources about to exhaust. */
} ETH_FUNC_RET_STATUS;
/* These are for big-endian machines. Little endian needs different
* definitions.
/*
* RX/TX descriptors.
*/
#if defined(__BIG_ENDIAN)
struct eth_rx_desc {
@ -277,6 +226,31 @@ struct eth_tx_desc {
#error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined
#endif
/* RX & TX descriptor command */
#define ETH_BUFFER_OWNED_BY_DMA 0x80000000
/* RX & TX descriptor status */
#define ETH_ERROR_SUMMARY 0x00000001
/* RX descriptor status */
#define ETH_LAYER_4_CHECKSUM_OK 0x40000000
#define ETH_RX_ENABLE_INTERRUPT 0x20000000
#define ETH_RX_FIRST_DESC 0x08000000
#define ETH_RX_LAST_DESC 0x04000000
/* TX descriptor command */
#define ETH_TX_ENABLE_INTERRUPT 0x00800000
#define ETH_GEN_CRC 0x00400000
#define ETH_TX_FIRST_DESC 0x00200000
#define ETH_TX_LAST_DESC 0x00100000
#define ETH_ZERO_PADDING 0x00080000
#define ETH_GEN_IP_V4_CHECKSUM 0x00040000
#define ETH_GEN_TCP_UDP_CHECKSUM 0x00020000
#define ETH_UDP_FRAME 0x00010000
#define ETH_TX_IHL_SHIFT 11
/* Unified struct for Rx and Tx operations. The user is not required to */
/* be familier with neither Tx nor Rx descriptors. */
struct pkt_info {
@ -905,7 +879,7 @@ static void eth_tx_submit_descs_for_skb(struct mv643xx_private *mp,
BUG_ON(skb->protocol != htons(ETH_P_IP));
cmd_sts |= ETH_GEN_TCP_UDP_CHECKSUM |
ETH_GEN_IP_V_4_CHECKSUM |
ETH_GEN_IP_V4_CHECKSUM |
ip_hdr(skb)->ihl << ETH_TX_IHL_SHIFT;
switch (ip_hdr(skb)->protocol) {