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author | Alan Cox <alan@linux.intel.com> | 2009-10-06 15:48:16 +0100 |
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committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-12-11 12:23:06 -0800 |
commit | b44207ab43e052aa26b47ea829d46d3a8520d2d2 (patch) | |
tree | 13f30aa12d3b474b0393f43fecfb608da45f30bb /drivers/staging/et131x/et1310_tx.h | |
parent | 10643efffaef252da174bb0cf2e78b201ea1856d (diff) | |
download | op-kernel-dev-b44207ab43e052aa26b47ea829d46d3a8520d2d2.zip op-kernel-dev-b44207ab43e052aa26b47ea829d46d3a8520d2d2.tar.gz |
Staging: et131x: clean up word 3 definition
This is basically not really used so turn it into a u32 and comment the
format for reference
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/et131x/et1310_tx.h')
-rw-r--r-- | drivers/staging/et131x/et1310_tx.h | 62 |
1 files changed, 19 insertions, 43 deletions
diff --git a/drivers/staging/et131x/et1310_tx.h b/drivers/staging/et131x/et1310_tx.h index ad03721..142b6ea 100644 --- a/drivers/staging/et131x/et1310_tx.h +++ b/drivers/staging/et131x/et1310_tx.h @@ -84,56 +84,32 @@ typedef union _txdesc_word2_t { } TXDESC_WORD2_t, *PTXDESC_WORD2_t; /* - * TXDESC_WORD3_t structure holds part of the control bits in the Tx Descriptor - * ring for the ET-1310 + * word 3 of the control bits in the Tx Descriptor ring for the + * ET-1310 + * + * 0: last packet in the sequence + * 1: first packet in the sequence + * 2: interrupt the processor when this pkt sent + * 3: Control word - no packet data + * 4: Issue half-duplex backpressure : XON/XOFF + * 5: send pause frame + * 6: Tx frame has error + * 7: append CRC + * 8: MAC override + * 9: pad packet + * 10: Packet is a Huge packet + * 11: append VLAN tag + * 12: IP checksum assist + * 13: TCP checksum assist + * 14: UDP checksum assist */ -typedef union _txdesc_word3_t { - u32 value; - struct { -#ifdef _BIT_FIELDS_HTOL - u32 unused:17; /* bits 15-31 */ - u32 udpa:1; /* bit 14(UDP checksum assist) */ - u32 tcpa:1; /* bit 13(TCP checksum assist) */ - u32 ipa:1; /* bit 12(IP checksum assist) */ - u32 vlan:1; /* bit 11(append VLAN tag) */ - u32 hp:1; /* bit 10(Packet is a Huge packet) */ - u32 pp:1; /* bit 9(pad packet) */ - u32 mac:1; /* bit 8(MAC override) */ - u32 crc:1; /* bit 7(append CRC) */ - u32 e:1; /* bit 6(Tx frame has error) */ - u32 pf:1; /* bit 5(send pause frame) */ - u32 bp:1; /* bit 4(Issue half-duplex backpressure (XON/XOFF) */ - u32 cw:1; /* bit 3(Control word - no packet data) */ - u32 ir:1; /* bit 2(interrupt the processor when this pkt sent) */ - u32 f:1; /* bit 1(first packet in the sequence) */ - u32 l:1; /* bit 0(last packet in the sequence) */ -#else - u32 l:1; /* bit 0(last packet in the sequence) */ - u32 f:1; /* bit 1(first packet in the sequence) */ - u32 ir:1; /* bit 2(interrupt the processor when this pkt sent) */ - u32 cw:1; /* bit 3(Control word - no packet data) */ - u32 bp:1; /* bit 4(Issue half-duplex backpressure (XON/XOFF) */ - u32 pf:1; /* bit 5(send pause frame) */ - u32 e:1; /* bit 6(Tx frame has error) */ - u32 crc:1; /* bit 7(append CRC) */ - u32 mac:1; /* bit 8(MAC override) */ - u32 pp:1; /* bit 9(pad packet) */ - u32 hp:1; /* bit 10(Packet is a Huge packet) */ - u32 vlan:1; /* bit 11(append VLAN tag) */ - u32 ipa:1; /* bit 12(IP checksum assist) */ - u32 tcpa:1; /* bit 13(TCP checksum assist) */ - u32 udpa:1; /* bit 14(UDP checksum assist) */ - u32 unused:17; /* bits 15-31 */ -#endif /* _BIT_FIELDS_HTOL */ - } bits; -} TXDESC_WORD3_t, *PTXDESC_WORD3_t; /* TX_DESC_ENTRY_t is sructure representing each descriptor on the ring */ typedef struct _tx_desc_entry_t { u32 DataBufferPtrHigh; u32 DataBufferPtrLow; TXDESC_WORD2_t word2; /* control words how to xmit the */ - TXDESC_WORD3_t word3; /* data (detailed above) */ + u32 word3; /* data (detailed above) */ } TX_DESC_ENTRY_t, *PTX_DESC_ENTRY_t; |