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Diffstat (limited to 'drivers/staging/et131x/et1310_tx.h')
| -rw-r--r-- | drivers/staging/et131x/et1310_tx.h | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/drivers/staging/et131x/et1310_tx.h b/drivers/staging/et131x/et1310_tx.h deleted file mode 100644 index 82d06e9870de..000000000000 --- a/drivers/staging/et131x/et1310_tx.h +++ /dev/null @@ -1,150 +0,0 @@ -/* - * Agere Systems Inc. - * 10/100/1000 Base-T Ethernet Driver for the ET1301 and ET131x series MACs - * - * Copyright © 2005 Agere Systems Inc. - * All rights reserved. - * http://www.agere.com - * - *------------------------------------------------------------------------------ - * - * et1310_tx.h - Defines, structs, enums, prototypes, etc. pertaining to data - * transmission. - * - *------------------------------------------------------------------------------ - * - * SOFTWARE LICENSE - * - * This software is provided subject to the following terms and conditions, - * which you should read carefully before using the software. Using this - * software indicates your acceptance of these terms and conditions. If you do - * not agree with these terms and conditions, do not use the software. - * - * Copyright © 2005 Agere Systems Inc. - * All rights reserved. - * - * Redistribution and use in source or binary forms, with or without - * modifications, are permitted provided that the following conditions are met: - * - * . Redistributions of source code must retain the above copyright notice, this - * list of conditions and the following Disclaimer as comments in the code as - * well as in the documentation and/or other materials provided with the - * distribution. - * - * . Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following Disclaimer in the documentation - * and/or other materials provided with the distribution. - * - * . Neither the name of Agere Systems Inc. nor the names of the contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * Disclaimer - * - * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, INFRINGEMENT AND THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ANY - * USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE IS SOLELY AT THE USERS OWN - * RISK. IN NO EVENT SHALL AGERE SYSTEMS INC. OR CONTRIBUTORS BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, INCLUDING, BUT NOT LIMITED TO, CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH - * DAMAGE. - * - */ - -#ifndef __ET1310_TX_H__ -#define __ET1310_TX_H__ - - -/* Typedefs for Tx Descriptor Ring */ - -/* - * word 2 of the control bits in the Tx Descriptor ring for the ET-1310 - * - * 0-15: length of packet - * 16-27: VLAN tag - * 28: VLAN CFI - * 29-31: VLAN priority - * - * 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 - */ - -/* struct tx_desc represents each descriptor on the ring */ -struct tx_desc { - u32 addr_hi; - u32 addr_lo; - u32 len_vlan; /* control words how to xmit the */ - u32 flags; /* data (detailed above) */ -}; - -/* - * The status of the Tx DMA engine it sits in free memory, and is pointed to - * by 0x101c / 0x1020. This is a DMA10 type - */ - -/* TCB (Transmit Control Block: Host Side) */ -struct tcb { - struct tcb *next; /* Next entry in ring */ - u32 flags; /* Our flags for the packet */ - u32 count; /* Used to spot stuck/lost packets */ - u32 stale; /* Used to spot stuck/lost packets */ - struct sk_buff *skb; /* Network skb we are tied to */ - u32 index; /* Ring indexes */ - u32 index_start; -}; - -/* Structure representing our local reference(s) to the ring */ -struct tx_ring { - /* TCB (Transmit Control Block) memory and lists */ - struct tcb *tcb_ring; - - /* List of TCBs that are ready to be used */ - struct tcb *tcb_qhead; - struct tcb *tcb_qtail; - - /* list of TCBs that are currently being sent. NOTE that access to all - * three of these (including used) are controlled via the - * TCBSendQLock. This lock should be secured prior to incementing / - * decrementing used, or any queue manipulation on send_head / - * tail - */ - struct tcb *send_head; - struct tcb *send_tail; - int used; - - /* The actual descriptor ring */ - struct tx_desc *tx_desc_ring; - dma_addr_t tx_desc_ring_pa; - - /* send_idx indicates where we last wrote to in the descriptor ring. */ - u32 send_idx; - - /* The location of the write-back status block */ - u32 *tx_status; - dma_addr_t tx_status_pa; - - /* Packets since the last IRQ: used for interrupt coalescing */ - int since_irq; -}; - -#endif /* __ET1310_TX_H__ */ |