mirror of
https://github.com/torvalds/linux
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fe6d3a4049
Reduced allocation size for rx skb buffers, from 2308 bytes to 1356 per buffer. Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp> Signed-off-by: Jeff Garzik <jeff@garzik.org>
231 lines
8.6 KiB
C
231 lines
8.6 KiB
C
/*
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* PS3 Platfom gelic network driver.
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*
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* Copyright (C) 2007 Sony Computer Entertainment Inc.
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* Copyright 2006, 2007 Sony Corporation.
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*
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* This file is based on: spider_net.h
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*
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* (C) Copyright IBM Corp. 2005
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*
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* Authors : Utz Bacher <utz.bacher@de.ibm.com>
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* Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef _GELIC_NET_H
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#define _GELIC_NET_H
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/* descriptors */
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#define GELIC_NET_RX_DESCRIPTORS 128 /* num of descriptors */
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#define GELIC_NET_TX_DESCRIPTORS 128 /* num of descriptors */
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#define GELIC_NET_MAX_MTU VLAN_ETH_FRAME_LEN
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#define GELIC_NET_MIN_MTU VLAN_ETH_ZLEN
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#define GELIC_NET_RXBUF_ALIGN 128
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#define GELIC_NET_RX_CSUM_DEFAULT 1 /* hw chksum */
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#define GELIC_NET_WATCHDOG_TIMEOUT 5*HZ
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#define GELIC_NET_NAPI_WEIGHT (GELIC_NET_RX_DESCRIPTORS)
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#define GELIC_NET_BROADCAST_ADDR 0xffffffffffffL
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#define GELIC_NET_VLAN_POS (VLAN_ETH_ALEN * 2)
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#define GELIC_NET_VLAN_MAX 4
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#define GELIC_NET_MC_COUNT_MAX 32 /* multicast address list */
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enum gelic_net_int0_status {
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GELIC_NET_GDTDCEINT = 24,
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GELIC_NET_GRFANMINT = 28,
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};
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/* GHIINT1STS bits */
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enum gelic_net_int1_status {
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GELIC_NET_GDADCEINT = 14,
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};
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/* interrupt mask */
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#define GELIC_NET_TXINT (1L << (GELIC_NET_GDTDCEINT + 32))
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#define GELIC_NET_RXINT0 (1L << (GELIC_NET_GRFANMINT + 32))
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#define GELIC_NET_RXINT1 (1L << GELIC_NET_GDADCEINT)
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#define GELIC_NET_RXINT (GELIC_NET_RXINT0 | GELIC_NET_RXINT1)
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/* RX descriptor data_status bits */
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#define GELIC_NET_RXDMADU 0x80000000 /* destination MAC addr unknown */
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#define GELIC_NET_RXLSTFBF 0x40000000 /* last frame buffer */
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#define GELIC_NET_RXIPCHK 0x20000000 /* IP checksum performed */
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#define GELIC_NET_RXTCPCHK 0x10000000 /* TCP/UDP checksup performed */
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#define GELIC_NET_RXIPSPKT 0x08000000 /* IPsec packet */
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#define GELIC_NET_RXIPSAHPRT 0x04000000 /* IPsec AH protocol performed */
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#define GELIC_NET_RXIPSESPPRT 0x02000000 /* IPsec ESP protocol performed */
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#define GELIC_NET_RXSESPAH 0x01000000 /*
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* IPsec ESP protocol auth
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* performed
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*/
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#define GELIC_NET_RXWTPKT 0x00C00000 /*
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* wakeup trigger packet
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* 01: Magic Packet (TM)
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* 10: ARP packet
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* 11: Multicast MAC addr
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*/
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#define GELIC_NET_RXVLNPKT 0x00200000 /* VLAN packet */
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/* bit 20..16 reserved */
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#define GELIC_NET_RXRRECNUM 0x0000ff00 /* reception receipt number */
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#define GELIC_NET_RXRRECNUM_SHIFT 8
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/* bit 7..0 reserved */
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#define GELIC_NET_TXDESC_TAIL 0
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#define GELIC_NET_DATA_STATUS_CHK_MASK (GELIC_NET_RXIPCHK | GELIC_NET_RXTCPCHK)
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/* RX descriptor data_error bits */
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/* bit 31 reserved */
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#define GELIC_NET_RXALNERR 0x40000000 /* alignement error 10/100M */
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#define GELIC_NET_RXOVERERR 0x20000000 /* oversize error */
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#define GELIC_NET_RXRNTERR 0x10000000 /* Runt error */
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#define GELIC_NET_RXIPCHKERR 0x08000000 /* IP checksum error */
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#define GELIC_NET_RXTCPCHKERR 0x04000000 /* TCP/UDP checksum error */
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#define GELIC_NET_RXUMCHSP 0x02000000 /* unmatched sp on sp */
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#define GELIC_NET_RXUMCHSPI 0x01000000 /* unmatched SPI on SAD */
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#define GELIC_NET_RXUMCHSAD 0x00800000 /* unmatched SAD */
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#define GELIC_NET_RXIPSAHERR 0x00400000 /* auth error on AH protocol
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* processing */
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#define GELIC_NET_RXIPSESPAHERR 0x00200000 /* auth error on ESP protocol
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* processing */
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#define GELIC_NET_RXDRPPKT 0x00100000 /* drop packet */
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#define GELIC_NET_RXIPFMTERR 0x00080000 /* IP packet format error */
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/* bit 18 reserved */
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#define GELIC_NET_RXDATAERR 0x00020000 /* IP packet format error */
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#define GELIC_NET_RXCALERR 0x00010000 /* cariier extension length
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* error */
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#define GELIC_NET_RXCREXERR 0x00008000 /* carrier extention error */
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#define GELIC_NET_RXMLTCST 0x00004000 /* multicast address frame */
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/* bit 13..0 reserved */
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#define GELIC_NET_DATA_ERROR_CHK_MASK \
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(GELIC_NET_RXIPCHKERR | GELIC_NET_RXTCPCHKERR)
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/* tx descriptor command and status */
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#define GELIC_NET_DMAC_CMDSTAT_NOCS 0xa0080000 /* middle of frame */
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#define GELIC_NET_DMAC_CMDSTAT_TCPCS 0xa00a0000
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#define GELIC_NET_DMAC_CMDSTAT_UDPCS 0xa00b0000
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#define GELIC_NET_DMAC_CMDSTAT_END_FRAME 0x00040000 /* end of frame */
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#define GELIC_NET_DMAC_CMDSTAT_RXDCEIS 0x00000002 /* descriptor chain end
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* interrupt status */
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#define GELIC_NET_DMAC_CMDSTAT_CHAIN_END 0x00000002 /* RXDCEIS:DMA stopped */
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#define GELIC_NET_DESCR_IND_PROC_SHIFT 28
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#define GELIC_NET_DESCR_IND_PROC_MASKO 0x0fffffff
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enum gelic_net_descr_status {
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GELIC_NET_DESCR_COMPLETE = 0x00, /* used in tx */
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GELIC_NET_DESCR_BUFFER_FULL = 0x00, /* used in rx */
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GELIC_NET_DESCR_RESPONSE_ERROR = 0x01, /* used in rx and tx */
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GELIC_NET_DESCR_PROTECTION_ERROR = 0x02, /* used in rx and tx */
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GELIC_NET_DESCR_FRAME_END = 0x04, /* used in rx */
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GELIC_NET_DESCR_FORCE_END = 0x05, /* used in rx and tx */
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GELIC_NET_DESCR_CARDOWNED = 0x0a, /* used in rx and tx */
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GELIC_NET_DESCR_NOT_IN_USE = 0x0b /* any other value */
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};
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/* for lv1_net_control */
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#define GELIC_NET_GET_MAC_ADDRESS 0x0000000000000001
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#define GELIC_NET_GET_ETH_PORT_STATUS 0x0000000000000002
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#define GELIC_NET_SET_NEGOTIATION_MODE 0x0000000000000003
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#define GELIC_NET_GET_VLAN_ID 0x0000000000000004
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#define GELIC_NET_LINK_UP 0x0000000000000001
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#define GELIC_NET_FULL_DUPLEX 0x0000000000000002
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#define GELIC_NET_AUTO_NEG 0x0000000000000004
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#define GELIC_NET_SPEED_10 0x0000000000000010
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#define GELIC_NET_SPEED_100 0x0000000000000020
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#define GELIC_NET_SPEED_1000 0x0000000000000040
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#define GELIC_NET_VLAN_ALL 0x0000000000000001
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#define GELIC_NET_VLAN_WIRED 0x0000000000000002
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#define GELIC_NET_VLAN_WIRELESS 0x0000000000000003
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#define GELIC_NET_VLAN_PSP 0x0000000000000004
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#define GELIC_NET_VLAN_PORT0 0x0000000000000010
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#define GELIC_NET_VLAN_PORT1 0x0000000000000011
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#define GELIC_NET_VLAN_PORT2 0x0000000000000012
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#define GELIC_NET_VLAN_DAEMON_CLIENT_BSS 0x0000000000000013
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#define GELIC_NET_VLAN_LIBERO_CLIENT_BSS 0x0000000000000014
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#define GELIC_NET_VLAN_NO_ENTRY -6
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#define GELIC_NET_PORT 2 /* for port status */
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/* size of hardware part of gelic descriptor */
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#define GELIC_NET_DESCR_SIZE (32)
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struct gelic_net_descr {
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/* as defined by the hardware */
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u32 buf_addr;
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u32 buf_size;
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u32 next_descr_addr;
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u32 dmac_cmd_status;
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u32 result_size;
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u32 valid_size; /* all zeroes for tx */
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u32 data_status;
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u32 data_error; /* all zeroes for tx */
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/* used in the driver */
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struct sk_buff *skb;
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dma_addr_t bus_addr;
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struct gelic_net_descr *next;
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struct gelic_net_descr *prev;
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struct vlan_ethhdr vlan;
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} __attribute__((aligned(32)));
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struct gelic_net_descr_chain {
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/* we walk from tail to head */
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struct gelic_net_descr *head;
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struct gelic_net_descr *tail;
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};
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struct gelic_net_card {
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struct net_device *netdev;
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/*
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* hypervisor requires irq_status should be
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* 8 bytes aligned, but u64 member is
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* always disposed in that manner
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*/
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u64 irq_status;
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u64 ghiintmask;
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struct ps3_system_bus_device *dev;
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u32 vlan_id[GELIC_NET_VLAN_MAX];
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int vlan_index;
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struct gelic_net_descr_chain tx_chain;
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struct gelic_net_descr_chain rx_chain;
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int rx_dma_restart_required;
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/* gurad dmac descriptor chain*/
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spinlock_t chain_lock;
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int rx_csum;
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/* guard tx_dma_progress */
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spinlock_t tx_dma_lock;
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int tx_dma_progress;
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struct work_struct tx_timeout_task;
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atomic_t tx_timeout_task_counter;
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wait_queue_head_t waitq;
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struct gelic_net_descr *tx_top, *rx_top;
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struct gelic_net_descr descr[0];
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};
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extern unsigned long p_to_lp(long pa);
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#endif /* _GELIC_NET_H */
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