From 766ea8cce007e699679109df4fa469b870ba4860 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 7 Aug 2006 15:49:53 -0700 Subject: [NET]: Fix alloc_skb comment typo Signed-off-by: Christoph Hellwig Signed-off-by: David S. Miller --- include/linux/skbuff.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 19c96d498e20..3573ba9a2555 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -1081,7 +1081,7 @@ static inline void __skb_queue_purge(struct sk_buff_head *list) * the headroom they think they need without accounting for the * built in space. The built in space is used for optimisations. * - * %NULL is returned in there is no free memory. + * %NULL is returned if there is no free memory. */ static inline struct sk_buff *__dev_alloc_skb(unsigned int length, gfp_t gfp_mask) @@ -1101,7 +1101,7 @@ static inline struct sk_buff *__dev_alloc_skb(unsigned int length, * the headroom they think they need without accounting for the * built in space. The built in space is used for optimisations. * - * %NULL is returned in there is no free memory. Although this function + * %NULL is returned if there is no free memory. Although this function * allocates memory it can be called from an interrupt. */ static inline struct sk_buff *dev_alloc_skb(unsigned int length) -- cgit v1.2.3 From 1cc6daf2349ea07830906e05164256ab36d82697 Mon Sep 17 00:00:00 2001 From: Pavel Machek Date: Tue, 8 Aug 2006 01:37:15 +0200 Subject: pr_debug() should not be used in drivers pr_debug() should not be used from drivers, add comment saying that. Signed-off-by: Pavel Machek Signed-off-by: Greg Kroah-Hartman --- include/linux/kernel.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 181c69cad4e3..851aa1bcfc1a 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -210,6 +210,7 @@ extern enum system_states { extern void dump_stack(void); #ifdef DEBUG +/* If you are writing a driver, please use dev_dbg instead */ #define pr_debug(fmt,arg...) \ printk(KERN_DEBUG fmt,##arg) #else -- cgit v1.2.3 From e9fa4f7bd291c29a785666e2fa5a9cf3241ee6c3 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Sun, 13 Aug 2006 20:12:58 -0700 Subject: [INET]: Use pskb_trim_unique when trimming paged unique skbs The IPv4/IPv6 datagram output path was using skb_trim to trim paged packets because they know that the packet has not been cloned yet (since the packet hasn't been given to anything else in the system). This broke because skb_trim no longer allows paged packets to be trimmed. Paged packets must be given to one of the pskb_trim functions instead. This patch adds a new pskb_trim_unique function to cover the IPv4/IPv6 datagram output path scenario and replaces the corresponding skb_trim calls with it. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- include/linux/skbuff.h | 15 +++++++++++++++ net/ipv4/ip_output.c | 4 ++-- net/ipv6/ip6_output.c | 2 +- 3 files changed, 18 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 3573ba9a2555..755e9cddac47 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -1039,6 +1039,21 @@ static inline int pskb_trim(struct sk_buff *skb, unsigned int len) return (len < skb->len) ? __pskb_trim(skb, len) : 0; } +/** + * pskb_trim_unique - remove end from a paged unique (not cloned) buffer + * @skb: buffer to alter + * @len: new length + * + * This is identical to pskb_trim except that the caller knows that + * the skb is not cloned so we should never get an error due to out- + * of-memory. + */ +static inline void pskb_trim_unique(struct sk_buff *skb, unsigned int len) +{ + int err = pskb_trim(skb, len); + BUG_ON(err); +} + /** * skb_orphan - orphan a buffer * @skb: buffer to orphan diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index 9bf307a29783..4c20f5546893 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -947,7 +947,7 @@ alloc_new_skb: skb_prev->csum = csum_sub(skb_prev->csum, skb->csum); data += fraggap; - skb_trim(skb_prev, maxfraglen); + pskb_trim_unique(skb_prev, maxfraglen); } copy = datalen - transhdrlen - fraggap; @@ -1142,7 +1142,7 @@ ssize_t ip_append_page(struct sock *sk, struct page *page, data, fraggap, 0); skb_prev->csum = csum_sub(skb_prev->csum, skb->csum); - skb_trim(skb_prev, maxfraglen); + pskb_trim_unique(skb_prev, maxfraglen); } /* diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 69451af6abe7..4fb47a252913 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -1095,7 +1095,7 @@ alloc_new_skb: skb_prev->csum = csum_sub(skb_prev->csum, skb->csum); data += fraggap; - skb_trim(skb_prev, maxfraglen); + pskb_trim_unique(skb_prev, maxfraglen); } copy = datalen - transhdrlen - fraggap; if (copy < 0) { -- cgit v1.2.3 From 2b25742556b1a351ce4821f6feddcba23bdd930b Mon Sep 17 00:00:00 2001 From: Michal Januszewski Date: Sun, 13 Aug 2006 23:24:26 -0700 Subject: [PATCH] fbdev: include backlight.h only when __KERNEL__ is defined linux/backlight.h pulls in header files (eg. ioport.h) that break compilation of userspace programs. To solve the problem, only include backlight.h in fb.h if compiling kernel stuff. Signed-off-by: Michal Januszewski Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- include/linux/fb.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/fb.h b/include/linux/fb.h index 4ad0673b1995..2f335e966011 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -1,7 +1,6 @@ #ifndef _LINUX_FB_H #define _LINUX_FB_H -#include #include /* Definitions of frame buffers */ @@ -381,6 +380,7 @@ struct fb_cursor { #include #include #include +#include #include struct vm_area_struct; -- cgit v1.2.3 From 1d7ea7324ae7a59f8e17e4ba76a2707c1e6f24d2 Mon Sep 17 00:00:00 2001 From: Alexander Zarochentsev Date: Sun, 13 Aug 2006 23:24:27 -0700 Subject: [PATCH] fuse: fix error case in fuse_readpages Don't let fuse_readpages leave the @pages list not empty when exiting on error. [akpm@osdl.org: kernel-doc fixes] Signed-off-by: Alexander Zarochentsev Signed-off-by: Miklos Szeredi Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- fs/fuse/file.c | 10 ++++++++-- include/linux/mm.h | 1 + mm/swap.c | 20 ++++++++++++++++++++ 3 files changed, 29 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 63614ed16336..5c4fcd1dbf59 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -395,14 +395,16 @@ static int fuse_readpages(struct file *file, struct address_space *mapping, struct fuse_readpages_data data; int err; + err = -EIO; if (is_bad_inode(inode)) - return -EIO; + goto clean_pages_up; data.file = file; data.inode = inode; data.req = fuse_get_req(fc); + err = PTR_ERR(data.req); if (IS_ERR(data.req)) - return PTR_ERR(data.req); + goto clean_pages_up; err = read_cache_pages(mapping, pages, fuse_readpages_fill, &data); if (!err) { @@ -412,6 +414,10 @@ static int fuse_readpages(struct file *file, struct address_space *mapping, fuse_put_request(fc, data.req); } return err; + +clean_pages_up: + put_pages_list(pages); + return err; } static size_t fuse_send_write(struct fuse_req *req, struct file *file, diff --git a/include/linux/mm.h b/include/linux/mm.h index 990957e0929f..f0b135cd86da 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -336,6 +336,7 @@ static inline void init_page_count(struct page *page) } void put_page(struct page *page); +void put_pages_list(struct list_head *pages); void split_page(struct page *page, unsigned int order); diff --git a/mm/swap.c b/mm/swap.c index 8fd095c4ae51..687686a61f7c 100644 --- a/mm/swap.c +++ b/mm/swap.c @@ -54,6 +54,26 @@ void put_page(struct page *page) } EXPORT_SYMBOL(put_page); +/** + * put_pages_list(): release a list of pages + * + * Release a list of pages which are strung together on page.lru. Currently + * used by read_cache_pages() and related error recovery code. + * + * @pages: list of pages threaded on page->lru + */ +void put_pages_list(struct list_head *pages) +{ + while (!list_empty(pages)) { + struct page *victim; + + victim = list_entry(pages->prev, struct page, lru); + list_del(&victim->lru); + page_cache_release(victim); + } +} +EXPORT_SYMBOL(put_pages_list); + /* * Writeback is about to end against a page which has been marked for immediate * reclaim. If it still appears to be reclaimable, move it to the tail of the -- cgit v1.2.3 From 7ea49ed73c8d0d0bdf7c11fc18c61572d2d22176 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 14 Aug 2006 17:08:36 -0700 Subject: [VLAN]: Make sure bonding packet drop checks get done in hwaccel RX path. Since __vlan_hwaccel_rx() is essentially bypassing the netif_receive_skb() call that would have occurred if we did the VLAN decapsulation in software, we are missing the skb_bond() call and the assosciated checks it does. Export those checks via an inline function, skb_bond_should_drop(), and use this in __vlan_hwaccel_rx(). Signed-off-by: David S. Miller --- include/linux/if_vlan.h | 5 +++++ include/linux/netdevice.h | 24 ++++++++++++++++++++++++ net/core/dev.c | 18 +----------------- 3 files changed, 30 insertions(+), 17 deletions(-) (limited to 'include/linux') diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h index 383627ad328f..ab2740832742 100644 --- a/include/linux/if_vlan.h +++ b/include/linux/if_vlan.h @@ -155,6 +155,11 @@ static inline int __vlan_hwaccel_rx(struct sk_buff *skb, { struct net_device_stats *stats; + if (skb_bond_should_drop(skb)) { + dev_kfree_skb_any(skb); + return NET_RX_DROP; + } + skb->dev = grp->vlan_devices[vlan_tag & VLAN_VID_MASK]; if (skb->dev == NULL) { dev_kfree_skb_any(skb); diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 75f02d8c6ed3..c0c2b46face1 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1012,6 +1012,30 @@ static inline int netif_needs_gso(struct net_device *dev, struct sk_buff *skb) unlikely(skb->ip_summed != CHECKSUM_HW)); } +/* On bonding slaves other than the currently active slave, suppress + * duplicates except for 802.3ad ETH_P_SLOW and alb non-mcast/bcast. + */ +static inline int skb_bond_should_drop(struct sk_buff *skb) +{ + struct net_device *dev = skb->dev; + struct net_device *master = dev->master; + + if (master && + (dev->priv_flags & IFF_SLAVE_INACTIVE)) { + if (master->priv_flags & IFF_MASTER_ALB) { + if (skb->pkt_type != PACKET_BROADCAST && + skb->pkt_type != PACKET_MULTICAST) + return 0; + } + if (master->priv_flags & IFF_MASTER_8023AD && + skb->protocol == __constant_htons(ETH_P_SLOW)) + return 0; + + return 1; + } + return 0; +} + #endif /* __KERNEL__ */ #endif /* _LINUX_DEV_H */ diff --git a/net/core/dev.c b/net/core/dev.c index d95e2626d944..9fe96cde3e19 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1619,26 +1619,10 @@ static inline struct net_device *skb_bond(struct sk_buff *skb) struct net_device *dev = skb->dev; if (dev->master) { - /* - * On bonding slaves other than the currently active - * slave, suppress duplicates except for 802.3ad - * ETH_P_SLOW and alb non-mcast/bcast. - */ - if (dev->priv_flags & IFF_SLAVE_INACTIVE) { - if (dev->master->priv_flags & IFF_MASTER_ALB) { - if (skb->pkt_type != PACKET_BROADCAST && - skb->pkt_type != PACKET_MULTICAST) - goto keep; - } - - if (dev->master->priv_flags & IFF_MASTER_8023AD && - skb->protocol == __constant_htons(ETH_P_SLOW)) - goto keep; - + if (skb_bond_should_drop(skb)) { kfree_skb(skb); return NULL; } -keep: skb->dev = dev->master; } -- cgit v1.2.3 From 78eb887733ec8ff5d6e6c69e3c32a187a9303622 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Thu, 17 Aug 2006 18:22:32 -0700 Subject: [BRIDGE]: Disable SG/GSO if TX checksum is off When the bridge recomputes features, it does not maintain the constraint that SG/GSO must be off if TX checksum is off. This patch adds that constraint. On a completely unrelated note, I've also added TSO6 and TSO_ECN feature bits if GSO is enabled on the underlying device through the new NETIF_F_GSO_SOFTWARE macro. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- include/linux/netdevice.h | 3 +++ net/bridge/br_if.c | 7 ++++++- 2 files changed, 9 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index c0c2b46face1..50a4719512ed 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -320,6 +320,9 @@ struct net_device #define NETIF_F_TSO_ECN (SKB_GSO_TCP_ECN << NETIF_F_GSO_SHIFT) #define NETIF_F_TSO6 (SKB_GSO_TCPV6 << NETIF_F_GSO_SHIFT) + /* List of features with software fallbacks. */ +#define NETIF_F_GSO_SOFTWARE (NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6) + #define NETIF_F_GEN_CSUM (NETIF_F_NO_CSUM | NETIF_F_HW_CSUM) #define NETIF_F_ALL_CSUM (NETIF_F_IP_CSUM | NETIF_F_GEN_CSUM) diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c index f55ef682ef84..b1211d5342f6 100644 --- a/net/bridge/br_if.c +++ b/net/bridge/br_if.c @@ -386,12 +386,17 @@ void br_features_recompute(struct net_bridge *br) checksum = 0; if (feature & NETIF_F_GSO) - feature |= NETIF_F_TSO; + feature |= NETIF_F_GSO_SOFTWARE; feature |= NETIF_F_GSO; features &= feature; } + if (!(checksum & NETIF_F_ALL_CSUM)) + features &= ~NETIF_F_SG; + if (!(features & NETIF_F_SG)) + features &= ~NETIF_F_GSO_MASK; + br->dev->features = features | checksum | NETIF_F_LLTX | NETIF_F_GSO_ROBUST; } -- cgit v1.2.3 From 11b0bacd717c285c94dbb56505a28434b34f0639 Mon Sep 17 00:00:00 2001 From: Vitaly Bordug Date: Mon, 14 Aug 2006 23:00:29 -0700 Subject: [PATCH] PAL: Support of the fixed PHY This makes it possible for HW PHY-less boards to utilize PAL goodies. Generic routines to connect to fixed PHY are provided, as well as ability to specify software callback that fills up link, speed, etc. information into PHY descriptor (the latter feature not tested so far). Signed-off-by: Vitaly Bordug Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/phy/Kconfig | 17 ++ drivers/net/phy/Makefile | 1 + drivers/net/phy/fixed.c | 358 +++++++++++++++++++++++++++++++++++++++++++ drivers/net/phy/mdio_bus.c | 1 + drivers/net/phy/phy_device.c | 51 +++--- include/linux/phy.h | 1 + 6 files changed, 408 insertions(+), 21 deletions(-) create mode 100644 drivers/net/phy/fixed.c (limited to 'include/linux') diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig index 2ba6d3a40e2e..b79ec0d7480f 100644 --- a/drivers/net/phy/Kconfig +++ b/drivers/net/phy/Kconfig @@ -56,5 +56,22 @@ config SMSC_PHY ---help--- Currently supports the LAN83C185 PHY +config FIXED_PHY + tristate "Drivers for PHY emulation on fixed speed/link" + depends on PHYLIB + ---help--- + Adds the driver to PHY layer to cover the boards that do not have any PHY bound, + but with the ability to manipulate with speed/link in software. The relavant MII + speed/duplex parameters could be effectively handled in user-specified fuction. + Currently tested with mpc866ads. + +config FIXED_MII_10_FDX + bool "Emulation for 10M Fdx fixed PHY behavior" + depends on FIXED_PHY + +config FIXED_MII_100_FDX + bool "Emulation for 100M Fdx fixed PHY behavior" + depends on FIXED_PHY + endmenu diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile index a00e61942525..320f8323123f 100644 --- a/drivers/net/phy/Makefile +++ b/drivers/net/phy/Makefile @@ -10,3 +10,4 @@ obj-$(CONFIG_LXT_PHY) += lxt.o obj-$(CONFIG_QSEMI_PHY) += qsemi.o obj-$(CONFIG_SMSC_PHY) += smsc.o obj-$(CONFIG_VITESSE_PHY) += vitesse.o +obj-$(CONFIG_FIXED_PHY) += fixed.o diff --git a/drivers/net/phy/fixed.c b/drivers/net/phy/fixed.c new file mode 100644 index 000000000000..341036df4710 --- /dev/null +++ b/drivers/net/phy/fixed.c @@ -0,0 +1,358 @@ +/* + * drivers/net/phy/fixed.c + * + * Driver for fixed PHYs, when transceiver is able to operate in one fixed mode. + * + * Author: Vitaly Bordug + * + * Copyright (c) 2006 MontaVista Software, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#define MII_REGS_NUM 7 + +/* + The idea is to emulate normal phy behavior by responding with + pre-defined values to mii BMCR read, so that read_status hook could + take all the needed info. +*/ + +struct fixed_phy_status { + u8 link; + u16 speed; + u8 duplex; +}; + +/*----------------------------------------------------------------------------- + * Private information hoder for mii_bus + *-----------------------------------------------------------------------------*/ +struct fixed_info { + u16 *regs; + u8 regs_num; + struct fixed_phy_status phy_status; + struct phy_device *phydev; /* pointer to the container */ + /* link & speed cb */ + int(*link_update)(struct net_device*, struct fixed_phy_status*); + +}; + +/*----------------------------------------------------------------------------- + * If something weird is required to be done with link/speed, + * network driver is able to assign a function to implement this. + * May be useful for PHY's that need to be software-driven. + *-----------------------------------------------------------------------------*/ +int fixed_mdio_set_link_update(struct phy_device* phydev, + int(*link_update)(struct net_device*, struct fixed_phy_status*)) +{ + struct fixed_info *fixed; + + if(link_update == NULL) + return -EINVAL; + + if(phydev) { + if(phydev->bus) { + fixed = phydev->bus->priv; + fixed->link_update = link_update; + return 0; + } + } + return -EINVAL; +} +EXPORT_SYMBOL(fixed_mdio_set_link_update); + +/*----------------------------------------------------------------------------- + * This is used for updating internal mii regs from the status + *-----------------------------------------------------------------------------*/ +static int fixed_mdio_update_regs(struct fixed_info *fixed) +{ + u16 *regs = fixed->regs; + u16 bmsr = 0; + u16 bmcr = 0; + + if(!regs) { + printk(KERN_ERR "%s: regs not set up", __FUNCTION__); + return -EINVAL; + } + + if(fixed->phy_status.link) + bmsr |= BMSR_LSTATUS; + + if(fixed->phy_status.duplex) { + bmcr |= BMCR_FULLDPLX; + + switch ( fixed->phy_status.speed ) { + case 100: + bmsr |= BMSR_100FULL; + bmcr |= BMCR_SPEED100; + break; + + case 10: + bmsr |= BMSR_10FULL; + break; + } + } else { + switch ( fixed->phy_status.speed ) { + case 100: + bmsr |= BMSR_100HALF; + bmcr |= BMCR_SPEED100; + break; + + case 10: + bmsr |= BMSR_100HALF; + break; + } + } + + regs[MII_BMCR] = bmcr; + regs[MII_BMSR] = bmsr | 0x800; /*we are always capable of 10 hdx*/ + + return 0; +} + +static int fixed_mii_read(struct mii_bus *bus, int phy_id, int location) +{ + struct fixed_info *fixed = bus->priv; + + /* if user has registered link update callback, use it */ + if(fixed->phydev) + if(fixed->phydev->attached_dev) { + if(fixed->link_update) { + fixed->link_update(fixed->phydev->attached_dev, + &fixed->phy_status); + fixed_mdio_update_regs(fixed); + } + } + + if ((unsigned int)location >= fixed->regs_num) + return -1; + return fixed->regs[location]; +} + +static int fixed_mii_write(struct mii_bus *bus, int phy_id, int location, u16 val) +{ + /* do nothing for now*/ + return 0; +} + +static int fixed_mii_reset(struct mii_bus *bus) +{ + /*nothing here - no way/need to reset it*/ + return 0; +} + +static int fixed_config_aneg(struct phy_device *phydev) +{ + /* :TODO:03/13/2006 09:45:37 PM:: + The full autoneg funcionality can be emulated, + but no need to have anything here for now + */ + return 0; +} + +/*----------------------------------------------------------------------------- + * the manual bind will do the magic - with phy_id_mask == 0 + * match will never return true... + *-----------------------------------------------------------------------------*/ +static struct phy_driver fixed_mdio_driver = { + .name = "Fixed PHY", + .features = PHY_BASIC_FEATURES, + .config_aneg = fixed_config_aneg, + .read_status = genphy_read_status, + .driver = { .owner = THIS_MODULE,}, +}; + +/*----------------------------------------------------------------------------- + * This func is used to create all the necessary stuff, bind + * the fixed phy driver and register all it on the mdio_bus_type. + * speed is either 10 or 100, duplex is boolean. + * number is used to create multiple fixed PHYs, so that several devices can + * utilize them simultaneously. + *-----------------------------------------------------------------------------*/ +static int fixed_mdio_register_device(int number, int speed, int duplex) +{ + struct mii_bus *new_bus; + struct fixed_info *fixed; + struct phy_device *phydev; + int err = 0; + + struct device* dev = kzalloc(sizeof(struct device), GFP_KERNEL); + + if (NULL == dev) + return -ENOMEM; + + new_bus = kzalloc(sizeof(struct mii_bus), GFP_KERNEL); + + if (NULL == new_bus) { + kfree(dev); + return -ENOMEM; + } + fixed = kzalloc(sizeof(struct fixed_info), GFP_KERNEL); + + if (NULL == fixed) { + kfree(dev); + kfree(new_bus); + return -ENOMEM; + } + + fixed->regs = kzalloc(MII_REGS_NUM*sizeof(int), GFP_KERNEL); + fixed->regs_num = MII_REGS_NUM; + fixed->phy_status.speed = speed; + fixed->phy_status.duplex = duplex; + fixed->phy_status.link = 1; + + new_bus->name = "Fixed MII Bus", + new_bus->read = &fixed_mii_read, + new_bus->write = &fixed_mii_write, + new_bus->reset = &fixed_mii_reset, + + /*set up workspace*/ + fixed_mdio_update_regs(fixed); + new_bus->priv = fixed; + + new_bus->dev = dev; + dev_set_drvdata(dev, new_bus); + + /* create phy_device and register it on the mdio bus */ + phydev = phy_device_create(new_bus, 0, 0); + + /* + Put the phydev pointer into the fixed pack so that bus read/write code could + be able to access for instance attached netdev. Well it doesn't have to do + so, only in case of utilizing user-specified link-update... + */ + fixed->phydev = phydev; + + if(NULL == phydev) { + err = -ENOMEM; + goto device_create_fail; + } + + phydev->irq = -1; + phydev->dev.bus = &mdio_bus_type; + + if(number) + snprintf(phydev->dev.bus_id, BUS_ID_SIZE, + "fixed_%d@%d:%d", number, speed, duplex); + else + snprintf(phydev->dev.bus_id, BUS_ID_SIZE, + "fixed@%d:%d", speed, duplex); + phydev->bus = new_bus; + + err = device_register(&phydev->dev); + if(err) { + printk(KERN_ERR "Phy %s failed to register\n", + phydev->dev.bus_id); + goto bus_register_fail; + } + + /* + the mdio bus has phy_id match... In order not to do it + artificially, we are binding the driver here by hand; + it will be the same for all the fixed phys anyway. + */ + down_write(&phydev->dev.bus->subsys.rwsem); + + phydev->dev.driver = &fixed_mdio_driver.driver; + + err = phydev->dev.driver->probe(&phydev->dev); + if(err < 0) { + printk(KERN_ERR "Phy %s: problems with fixed driver\n",phydev->dev.bus_id); + up_write(&phydev->dev.bus->subsys.rwsem); + goto probe_fail; + } + + device_bind_driver(&phydev->dev); + up_write(&phydev->dev.bus->subsys.rwsem); + + return 0; + +probe_fail: + device_unregister(&phydev->dev); +bus_register_fail: + kfree(phydev); +device_create_fail: + kfree(dev); + kfree(new_bus); + kfree(fixed); + + return err; +} + + +MODULE_DESCRIPTION("Fixed PHY device & driver for PAL"); +MODULE_AUTHOR("Vitaly Bordug"); +MODULE_LICENSE("GPL"); + +static int __init fixed_init(void) +{ + int ret; + int duplex = 0; + + /* register on the bus... Not expected to be matched with anything there... */ + phy_driver_register(&fixed_mdio_driver); + + /* So let the fun begin... + We will create several mdio devices here, and will bound the upper + driver to them. + + Then the external software can lookup the phy bus by searching + fixed@speed:duplex, e.g. fixed@100:1, to be connected to the + virtual 100M Fdx phy. + + In case several virtual PHYs required, the bus_id will be in form + fixed_@:, which make it able even to define + driver-specific link control callback, if for instance PHY is completely + SW-driven. + + */ + +#ifdef CONFIG_FIXED_MII_DUPLEX + duplex = 1; +#endif + +#ifdef CONFIG_FIXED_MII_100_FDX + fixed_mdio_register_device(0, 100, 1); +#endif + +#ifdef CONFIX_FIXED_MII_10_FDX + fixed_mdio_register_device(0, 10, 1); +#endif + return 0; +} + +static void __exit fixed_exit(void) +{ + phy_driver_unregister(&fixed_mdio_driver); + /* :WARNING:02/18/2006 04:32:40 AM:: Cleanup all the created stuff */ +} + +module_init(fixed_init); +module_exit(fixed_exit); diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c index 1dde390c164d..cf6660c93ffa 100644 --- a/drivers/net/phy/mdio_bus.c +++ b/drivers/net/phy/mdio_bus.c @@ -159,6 +159,7 @@ struct bus_type mdio_bus_type = { .suspend = mdio_bus_suspend, .resume = mdio_bus_resume, }; +EXPORT_SYMBOL(mdio_bus_type); int __init mdio_bus_init(void) { diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 1bc1e032c5d6..2d1ecfdc80db 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -45,6 +45,35 @@ static struct phy_driver genphy_driver; extern int mdio_bus_init(void); extern void mdio_bus_exit(void); +struct phy_device* phy_device_create(struct mii_bus *bus, int addr, int phy_id) +{ + struct phy_device *dev; + /* We allocate the device, and initialize the + * default values */ + dev = kcalloc(1, sizeof(*dev), GFP_KERNEL); + + if (NULL == dev) + return (struct phy_device*) PTR_ERR((void*)-ENOMEM); + + dev->speed = 0; + dev->duplex = -1; + dev->pause = dev->asym_pause = 0; + dev->link = 1; + + dev->autoneg = AUTONEG_ENABLE; + + dev->addr = addr; + dev->phy_id = phy_id; + dev->bus = bus; + + dev->state = PHY_DOWN; + + spin_lock_init(&dev->lock); + + return dev; +} +EXPORT_SYMBOL(phy_device_create); + /* get_phy_device * * description: Reads the ID registers of the PHY at addr on the @@ -78,27 +107,7 @@ struct phy_device * get_phy_device(struct mii_bus *bus, int addr) if (0xffffffff == phy_id) return NULL; - /* Otherwise, we allocate the device, and initialize the - * default values */ - dev = kcalloc(1, sizeof(*dev), GFP_KERNEL); - - if (NULL == dev) - return ERR_PTR(-ENOMEM); - - dev->speed = 0; - dev->duplex = -1; - dev->pause = dev->asym_pause = 0; - dev->link = 1; - - dev->autoneg = AUTONEG_ENABLE; - - dev->addr = addr; - dev->phy_id = phy_id; - dev->bus = bus; - - dev->state = PHY_DOWN; - - spin_lock_init(&dev->lock); + dev = phy_device_create(bus, addr, phy_id); return dev; } diff --git a/include/linux/phy.h b/include/linux/phy.h index 331521a10a2d..9447a57ee8a9 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -378,6 +378,7 @@ int phy_mii_ioctl(struct phy_device *phydev, struct mii_ioctl_data *mii_data, int cmd); int phy_start_interrupts(struct phy_device *phydev); void phy_print_status(struct phy_device *phydev); +struct phy_device* phy_device_create(struct mii_bus *bus, int addr, int phy_id); extern struct bus_type mdio_bus_type; #endif /* __PHY_H */ -- cgit v1.2.3 From 2ca2d5e84c19ddbc0126087af6288533a05f1799 Mon Sep 17 00:00:00 2001 From: Vitaly Bordug Date: Mon, 14 Aug 2006 23:00:31 -0700 Subject: [PATCH] ppc32: board-specific part of fs_enet update This contains board-specific portion to respect driver changes (for 8272ads , 885ads and 866ads). Altered platform_data structures as well as initial setup routines relevant to fs_enet. Changes to the mpc8560ads ppc/ code are also introduced, but mainly as reference, since the entire board support is going to appear in arch/powerpc. Signed-off-by: Vitaly Bordug Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- arch/ppc/platforms/85xx/mpc8560_ads.c | 89 +++++++++++++ arch/ppc/platforms/85xx/mpc85xx_ads_common.h | 19 +++ arch/ppc/platforms/mpc8272ads_setup.c | 154 +++++++++++---------- arch/ppc/platforms/mpc866ads_setup.c | 192 +++++++++++++-------------- arch/ppc/platforms/mpc885ads_setup.c | 175 +++++++++--------------- arch/ppc/platforms/pq2ads_pd.h | 82 ------------ arch/ppc/syslib/mpc85xx_devices.c | 89 ++++++++++++- arch/ppc/syslib/mpc8xx_devices.c | 8 ++ arch/ppc/syslib/mpc8xx_sys.c | 6 +- arch/ppc/syslib/pq2_devices.c | 5 + arch/ppc/syslib/pq2_sys.c | 3 +- include/asm-ppc/cpm2.h | 95 +++++++++++++ include/asm-ppc/mpc8260.h | 1 + include/asm-ppc/mpc8xx.h | 1 + include/linux/fs_enet_pd.h | 50 +++---- 15 files changed, 578 insertions(+), 391 deletions(-) (limited to 'include/linux') diff --git a/arch/ppc/platforms/85xx/mpc8560_ads.c b/arch/ppc/platforms/85xx/mpc8560_ads.c index d90cd24d018e..94badafe4ef1 100644 --- a/arch/ppc/platforms/85xx/mpc8560_ads.c +++ b/arch/ppc/platforms/85xx/mpc8560_ads.c @@ -29,6 +29,7 @@ #include #include #include +#include #include #include @@ -58,6 +59,71 @@ * Setup the architecture * */ +static void init_fcc_ioports(void) +{ + struct immap *immap; + struct io_port *io; + u32 tempval; + + immap = cpm2_immr; + + io = &immap->im_ioport; + /* FCC2/3 are on the ports B/C. */ + tempval = in_be32(&io->iop_pdirb); + tempval &= ~PB2_DIRB0; + tempval |= PB2_DIRB1; + out_be32(&io->iop_pdirb, tempval); + + tempval = in_be32(&io->iop_psorb); + tempval &= ~PB2_PSORB0; + tempval |= PB2_PSORB1; + out_be32(&io->iop_psorb, tempval); + + tempval = in_be32(&io->iop_pparb); + tempval |= (PB2_DIRB0 | PB2_DIRB1); + out_be32(&io->iop_pparb, tempval); + + tempval = in_be32(&io->iop_pdirb); + tempval &= ~PB3_DIRB0; + tempval |= PB3_DIRB1; + out_be32(&io->iop_pdirb, tempval); + + tempval = in_be32(&io->iop_psorb); + tempval &= ~PB3_PSORB0; + tempval |= PB3_PSORB1; + out_be32(&io->iop_psorb, tempval); + + tempval = in_be32(&io->iop_pparb); + tempval |= (PB3_DIRB0 | PB3_DIRB1); + out_be32(&io->iop_pparb, tempval); + + tempval = in_be32(&io->iop_pdirc); + tempval |= PC3_DIRC1; + out_be32(&io->iop_pdirc, tempval); + + tempval = in_be32(&io->iop_pparc); + tempval |= PC3_DIRC1; + out_be32(&io->iop_pparc, tempval); + + /* Port C has clocks...... */ + tempval = in_be32(&io->iop_psorc); + tempval &= ~(CLK_TRX); + out_be32(&io->iop_psorc, tempval); + + tempval = in_be32(&io->iop_pdirc); + tempval &= ~(CLK_TRX); + out_be32(&io->iop_pdirc, tempval); + tempval = in_be32(&io->iop_pparc); + tempval |= (CLK_TRX); + out_be32(&io->iop_pparc, tempval); + + /* Configure Serial Interface clock routing. + * First, clear all FCC bits to zero, + * then set the ones we want. + */ + immap->im_cpmux.cmx_fcr &= ~(CPMUX_CLK_MASK); + immap->im_cpmux.cmx_fcr |= CPMUX_CLK_ROUTE; +} static void __init mpc8560ads_setup_arch(void) @@ -66,6 +132,7 @@ mpc8560ads_setup_arch(void) unsigned int freq; struct gianfar_platform_data *pdata; struct gianfar_mdio_data *mdata; + struct fs_platform_info *fpi; cpm2_reset(); @@ -110,6 +177,28 @@ mpc8560ads_setup_arch(void) memcpy(pdata->mac_addr, binfo->bi_enet1addr, 6); } + init_fcc_ioports(); + ppc_sys_device_remove(MPC85xx_CPM_FCC1); + + fpi = (struct fs_platform_info *) ppc_sys_get_pdata(MPC85xx_CPM_FCC2); + if (fpi) { + memcpy(fpi->macaddr, binfo->bi_enet2addr, 6); + fpi->bus_id = "0:02"; + fpi->phy_addr = 2; + fpi->dpram_offset = (u32)cpm2_immr->im_dprambase; + fpi->fcc_regs_c = (u32)&cpm2_immr->im_fcc_c[1]; + } + + fpi = (struct fs_platform_info *) ppc_sys_get_pdata(MPC85xx_CPM_FCC3); + if (fpi) { + memcpy(fpi->macaddr, binfo->bi_enet2addr, 6); + fpi->macaddr[5] += 1; + fpi->bus_id = "0:03"; + fpi->phy_addr = 3; + fpi->dpram_offset = (u32)cpm2_immr->im_dprambase; + fpi->fcc_regs_c = (u32)&cpm2_immr->im_fcc_c[2]; + } + #ifdef CONFIG_BLK_DEV_INITRD if (initrd_start) ROOT_DEV = Root_RAM0; diff --git a/arch/ppc/platforms/85xx/mpc85xx_ads_common.h b/arch/ppc/platforms/85xx/mpc85xx_ads_common.h index abf32281655d..c8c322fe3680 100644 --- a/arch/ppc/platforms/85xx/mpc85xx_ads_common.h +++ b/arch/ppc/platforms/85xx/mpc85xx_ads_common.h @@ -45,4 +45,23 @@ extern void mpc85xx_ads_map_io(void) __init; #define MPC85XX_PCI1_IO_SIZE 0x01000000 +/* FCC1 Clock Source Configuration. These can be + * redefined in the board specific file. + * Can only choose from CLK9-12 */ +#define F1_RXCLK 12 +#define F1_TXCLK 11 + +/* FCC2 Clock Source Configuration. These can be + * redefined in the board specific file. + * Can only choose from CLK13-16 */ +#define F2_RXCLK 13 +#define F2_TXCLK 14 + +/* FCC3 Clock Source Configuration. These can be + * redefined in the board specific file. + * Can only choose from CLK13-16 */ +#define F3_RXCLK 15 +#define F3_TXCLK 16 + + #endif /* __MACH_MPC85XX_ADS_H__ */ diff --git a/arch/ppc/platforms/mpc8272ads_setup.c b/arch/ppc/platforms/mpc8272ads_setup.c index abb7154de2c7..2a35fe2b9b96 100644 --- a/arch/ppc/platforms/mpc8272ads_setup.c +++ b/arch/ppc/platforms/mpc8272ads_setup.c @@ -56,64 +56,51 @@ static struct fs_uart_platform_info mpc8272_uart_pdata[] = { }, }; -static struct fs_mii_bus_info mii_bus_info = { - .method = fsmii_bitbang, - .id = 0, - .i.bitbang = { - .mdio_port = fsiop_portc, - .mdio_bit = 18, - .mdc_port = fsiop_portc, - .mdc_bit = 19, - .delay = 1, - }, -}; - -static struct fs_platform_info mpc82xx_fcc1_pdata = { - .fs_no = fsid_fcc1, - .cp_page = CPM_CR_FCC1_PAGE, - .cp_block = CPM_CR_FCC1_SBLOCK, - .clk_trx = (PC_F1RXCLK | PC_F1TXCLK), - .clk_route = CMX1_CLK_ROUTE, - .clk_mask = CMX1_CLK_MASK, - .init_ioports = init_fcc1_ioports, - - .phy_addr = 0, -#ifdef PHY_INTERRUPT - .phy_irq = PHY_INTERRUPT, -#else - .phy_irq = -1; -#endif - .mem_offset = FCC1_MEM_OFFSET, - .bus_info = &mii_bus_info, - .rx_ring = 32, - .tx_ring = 32, - .rx_copybreak = 240, - .use_napi = 0, - .napi_weight = 17, +static struct fs_mii_bb_platform_info m82xx_mii_bb_pdata = { + .mdio_dat.bit = 18, + .mdio_dir.bit = 18, + .mdc_dat.bit = 19, + .delay = 1, }; -static struct fs_platform_info mpc82xx_fcc2_pdata = { - .fs_no = fsid_fcc2, - .cp_page = CPM_CR_FCC2_PAGE, - .cp_block = CPM_CR_FCC2_SBLOCK, - .clk_trx = (PC_F2RXCLK | PC_F2TXCLK), - .clk_route = CMX2_CLK_ROUTE, - .clk_mask = CMX2_CLK_MASK, - .init_ioports = init_fcc2_ioports, - - .phy_addr = 3, -#ifdef PHY_INTERRUPT - .phy_irq = PHY_INTERRUPT, -#else - .phy_irq = -1; -#endif - .mem_offset = FCC2_MEM_OFFSET, - .bus_info = &mii_bus_info, - .rx_ring = 32, - .tx_ring = 32, - .rx_copybreak = 240, - .use_napi = 0, - .napi_weight = 17, +static struct fs_platform_info mpc82xx_enet_pdata[] = { + [fsid_fcc1] = { + .fs_no = fsid_fcc1, + .cp_page = CPM_CR_FCC1_PAGE, + .cp_block = CPM_CR_FCC1_SBLOCK, + + .clk_trx = (PC_F1RXCLK | PC_F1TXCLK), + .clk_route = CMX1_CLK_ROUTE, + .clk_mask = CMX1_CLK_MASK, + .init_ioports = init_fcc1_ioports, + + .mem_offset = FCC1_MEM_OFFSET, + + .rx_ring = 32, + .tx_ring = 32, + .rx_copybreak = 240, + .use_napi = 0, + .napi_weight = 17, + .bus_id = "0:00", + }, + [fsid_fcc2] = { + .fs_no = fsid_fcc2, + .cp_page = CPM_CR_FCC2_PAGE, + .cp_block = CPM_CR_FCC2_SBLOCK, + .clk_trx = (PC_F2RXCLK | PC_F2TXCLK), + .clk_route = CMX2_CLK_ROUTE, + .clk_mask = CMX2_CLK_MASK, + .init_ioports = init_fcc2_ioports, + + .mem_offset = FCC2_MEM_OFFSET, + + .rx_ring = 32, + .tx_ring = 32, + .rx_copybreak = 240, + .use_napi = 0, + .napi_weight = 17, + .bus_id = "0:03", + }, }; static void init_fcc1_ioports(void) @@ -209,20 +196,21 @@ static void __init mpc8272ads_fixup_enet_pdata(struct platform_device *pdev, bd_t* bi = (void*)__res; int fs_no = fsid_fcc1+pdev->id-1; - mpc82xx_fcc1_pdata.dpram_offset = mpc82xx_fcc2_pdata.dpram_offset = (u32)cpm2_immr->im_dprambase; - mpc82xx_fcc1_pdata.fcc_regs_c = mpc82xx_fcc2_pdata.fcc_regs_c = (u32)cpm2_immr->im_fcc_c; - - switch(fs_no) { - case fsid_fcc1: - memcpy(&mpc82xx_fcc1_pdata.macaddr,bi->bi_enetaddr,6); - pdev->dev.platform_data = &mpc82xx_fcc1_pdata; - break; - case fsid_fcc2: - memcpy(&mpc82xx_fcc2_pdata.macaddr,bi->bi_enetaddr,6); - mpc82xx_fcc2_pdata.macaddr[5] ^= 1; - pdev->dev.platform_data = &mpc82xx_fcc2_pdata; - break; + if(fs_no > ARRAY_SIZE(mpc82xx_enet_pdata)) { + return; } + + mpc82xx_enet_pdata[fs_no].dpram_offset= + (u32)cpm2_immr->im_dprambase; + mpc82xx_enet_pdata[fs_no].fcc_regs_c = + (u32)cpm2_immr->im_fcc_c; + memcpy(&mpc82xx_enet_pdata[fs_no].macaddr,bi->bi_enetaddr,6); + + /* prevent dup mac */ + if(fs_no == fsid_fcc2) + mpc82xx_enet_pdata[fs_no].macaddr[5] ^= 1; + + pdev->dev.platform_data = &mpc82xx_enet_pdata[fs_no]; } static void mpc8272ads_fixup_uart_pdata(struct platform_device *pdev, @@ -274,6 +262,29 @@ static void init_scc4_uart_ioports(void) iounmap(immap); } +static void __init mpc8272ads_fixup_mdio_pdata(struct platform_device *pdev, + int idx) +{ + m82xx_mii_bb_pdata.irq[0] = PHY_INTERRUPT; + m82xx_mii_bb_pdata.irq[1] = -1; + m82xx_mii_bb_pdata.irq[2] = -1; + m82xx_mii_bb_pdata.irq[3] = PHY_INTERRUPT; + m82xx_mii_bb_pdata.irq[31] = -1; + + + m82xx_mii_bb_pdata.mdio_dat.offset = + (u32)&cpm2_immr->im_ioport.iop_pdatc; + + m82xx_mii_bb_pdata.mdio_dir.offset = + (u32)&cpm2_immr->im_ioport.iop_pdirc; + + m82xx_mii_bb_pdata.mdc_dat.offset = + (u32)&cpm2_immr->im_ioport.iop_pdatc; + + + pdev->dev.platform_data = &m82xx_mii_bb_pdata; +} + static int mpc8272ads_platform_notify(struct device *dev) { static const struct platform_notify_dev_map dev_map[] = { @@ -285,6 +296,10 @@ static int mpc8272ads_platform_notify(struct device *dev) .bus_id = "fsl-cpm-scc:uart", .rtn = mpc8272ads_fixup_uart_pdata, }, + { + .bus_id = "fsl-bb-mdio", + .rtn = mpc8272ads_fixup_mdio_pdata, + }, { .bus_id = NULL } @@ -319,6 +334,7 @@ int __init mpc8272ads_init(void) ppc_sys_device_enable(MPC82xx_CPM_SCC4); #endif + ppc_sys_device_enable(MPC82xx_MDIO_BB); return 0; } diff --git a/arch/ppc/platforms/mpc866ads_setup.c b/arch/ppc/platforms/mpc866ads_setup.c index f19b6167c770..e12cece4c9fd 100644 --- a/arch/ppc/platforms/mpc866ads_setup.c +++ b/arch/ppc/platforms/mpc866ads_setup.c @@ -1,10 +1,10 @@ -/*arch/ppc/platforms/mpc885ads-setup.c +/*arch/ppc/platforms/mpc866ads-setup.c * - * Platform setup for the Freescale mpc885ads board + * Platform setup for the Freescale mpc866ads board * * Vitaly Bordug * - * Copyright 2005 MontaVista Software Inc. + * Copyright 2005-2006 MontaVista Software Inc. * * This file is licensed under the terms of the GNU General Public License * version 2. This program is licensed "as is" without any warranty of any @@ -42,49 +42,36 @@ static void setup_scc1_ioports(void); static void setup_smc1_ioports(void); static void setup_smc2_ioports(void); -static struct fs_mii_bus_info fec_mii_bus_info = { - .method = fsmii_fec, - .id = 0, -}; - -static struct fs_mii_bus_info scc_mii_bus_info = { - .method = fsmii_fixed, - .id = 0, - .i.fixed.speed = 10, - .i.fixed.duplex = 0, -}; +static struct fs_mii_fec_platform_info mpc8xx_mdio_fec_pdata; -static struct fs_platform_info mpc8xx_fec_pdata[] = { - { - .rx_ring = 128, - .tx_ring = 16, - .rx_copybreak = 240, +static struct fs_mii_fec_platform_info mpc8xx_mdio_fec_pdata; - .use_napi = 1, - .napi_weight = 17, +static struct fs_platform_info mpc8xx_enet_pdata[] = { + [fsid_fec1] = { + .rx_ring = 128, + .tx_ring = 16, + .rx_copybreak = 240, - .phy_addr = 15, - .phy_irq = -1, + .use_napi = 1, + .napi_weight = 17, - .use_rmii = 0, + .init_ioports = setup_fec1_ioports, - .bus_info = &fec_mii_bus_info, - } -}; + .bus_id = "0:0f", + .has_phy = 1, + }, + [fsid_scc1] = { + .rx_ring = 64, + .tx_ring = 8, + .rx_copybreak = 240, + .use_napi = 1, + .napi_weight = 17, -static struct fs_platform_info mpc8xx_scc_pdata = { - .rx_ring = 64, - .tx_ring = 8, - .rx_copybreak = 240, - .use_napi = 1, - .napi_weight = 17, - - .phy_addr = -1, - .phy_irq = -1, - - .bus_info = &scc_mii_bus_info, + .init_ioports = setup_scc1_ioports, + .bus_id = "fixed@100:1", + }, }; static struct fs_uart_platform_info mpc866_uart_pdata[] = { @@ -207,63 +194,6 @@ static void setup_scc1_ioports(void) } -static void mpc866ads_fixup_enet_pdata(struct platform_device *pdev, int fs_no) -{ - struct fs_platform_info *fpi = pdev->dev.platform_data; - - volatile cpm8xx_t *cp; - bd_t *bd = (bd_t *) __res; - char *e; - int i; - - /* Get pointer to Communication Processor */ - cp = cpmp; - switch (fs_no) { - case fsid_fec1: - fpi = &mpc8xx_fec_pdata[0]; - fpi->init_ioports = &setup_fec1_ioports; - - break; - case fsid_scc1: - fpi = &mpc8xx_scc_pdata; - fpi->init_ioports = &setup_scc1_ioports; - - break; - default: - printk(KERN_WARNING"Device %s is not supported!\n", pdev->name); - return; - } - - pdev->dev.platform_data = fpi; - fpi->fs_no = fs_no; - - e = (unsigned char *)&bd->bi_enetaddr; - for (i = 0; i < 6; i++) - fpi->macaddr[i] = *e++; - - fpi->macaddr[5 - pdev->id]++; - -} - -static void mpc866ads_fixup_fec_enet_pdata(struct platform_device *pdev, - int idx) -{ - /* This is for FEC devices only */ - if (!pdev || !pdev->name || (!strstr(pdev->name, "fsl-cpm-fec"))) - return; - mpc866ads_fixup_enet_pdata(pdev, fsid_fec1 + pdev->id - 1); -} - -static void mpc866ads_fixup_scc_enet_pdata(struct platform_device *pdev, - int idx) -{ - /* This is for SCC devices only */ - if (!pdev || !pdev->name || (!strstr(pdev->name, "fsl-cpm-scc"))) - return; - - mpc866ads_fixup_enet_pdata(pdev, fsid_scc1 + pdev->id - 1); -} - static void setup_smc1_ioports(void) { immap_t *immap = (immap_t *) IMAP_ADDR; @@ -315,6 +245,56 @@ static void setup_smc2_ioports(void) } +static int ma_count = 0; + +static void mpc866ads_fixup_enet_pdata(struct platform_device *pdev, int fs_no) +{ + struct fs_platform_info *fpi; + + volatile cpm8xx_t *cp; + bd_t *bd = (bd_t *) __res; + char *e; + int i; + + /* Get pointer to Communication Processor */ + cp = cpmp; + + if(fs_no > ARRAY_SIZE(mpc8xx_enet_pdata)) { + printk(KERN_ERR"No network-suitable #%d device on bus", fs_no); + return; + } + + + fpi = &mpc8xx_enet_pdata[fs_no]; + fpi->fs_no = fs_no; + pdev->dev.platform_data = fpi; + + e = (unsigned char *)&bd->bi_enetaddr; + for (i = 0; i < 6; i++) + fpi->macaddr[i] = *e++; + + fpi->macaddr[5] += ma_count++; +} + +static void mpc866ads_fixup_fec_enet_pdata(struct platform_device *pdev, + int idx) +{ + /* This is for FEC devices only */ + if (!pdev || !pdev->name || (!strstr(pdev->name, "fsl-cpm-fec"))) + return; + mpc866ads_fixup_enet_pdata(pdev, fsid_fec1 + pdev->id - 1); +} + +static void mpc866ads_fixup_scc_enet_pdata(struct platform_device *pdev, + int idx) +{ + /* This is for SCC devices only */ + if (!pdev || !pdev->name || (!strstr(pdev->name, "fsl-cpm-scc"))) + return; + + mpc866ads_fixup_enet_pdata(pdev, fsid_scc1 + pdev->id - 1); +} + static void __init mpc866ads_fixup_uart_pdata(struct platform_device *pdev, int idx) { @@ -359,6 +339,9 @@ static int mpc866ads_platform_notify(struct device *dev) int __init mpc866ads_init(void) { + bd_t *bd = (bd_t *) __res; + struct fs_mii_fec_platform_info* fmpi; + printk(KERN_NOTICE "mpc866ads: Init\n"); platform_notify = mpc866ads_platform_notify; @@ -366,11 +349,20 @@ int __init mpc866ads_init(void) ppc_sys_device_initfunc(); ppc_sys_device_disable_all(); -#ifdef MPC8xx_SECOND_ETH_SCC1 +#ifdef CONFIG_MPC8xx_SECOND_ETH_SCC1 ppc_sys_device_enable(MPC8xx_CPM_SCC1); #endif ppc_sys_device_enable(MPC8xx_CPM_FEC1); + ppc_sys_device_enable(MPC8xx_MDIO_FEC); + + fmpi = ppc_sys_platform_devices[MPC8xx_MDIO_FEC].dev.platform_data = + &mpc8xx_mdio_fec_pdata; + + fmpi->mii_speed = ((((bd->bi_intfreq + 4999999) / 2500000) / 2) & 0x3F) << 1; + /* No PHY interrupt line here */ + fmpi->irq[0xf] = -1; + /* Since either of the uarts could be used as console, they need to ready */ #ifdef CONFIG_SERIAL_CPM_SMC1 ppc_sys_device_enable(MPC8xx_CPM_SMC1); @@ -381,6 +373,14 @@ int __init mpc866ads_init(void) ppc_sys_device_enable(MPC8xx_CPM_SMC2); ppc_sys_device_setfunc(MPC8xx_CPM_SMC2, PPC_SYS_FUNC_UART); #endif + ppc_sys_device_enable(MPC8xx_MDIO_FEC); + + fmpi = ppc_sys_platform_devices[MPC8xx_MDIO_FEC].dev.platform_data = + &mpc8xx_mdio_fec_pdata; + + fmpi->mii_speed = ((((bd->bi_intfreq + 4999999) / 2500000) / 2) & 0x3F) << 1; + /* No PHY interrupt line here */ + fmpi->irq[0xf] = -1; return 0; } diff --git a/arch/ppc/platforms/mpc885ads_setup.c b/arch/ppc/platforms/mpc885ads_setup.c index c1fc4a16fea9..5dfa4e6c2af0 100644 --- a/arch/ppc/platforms/mpc885ads_setup.c +++ b/arch/ppc/platforms/mpc885ads_setup.c @@ -38,7 +38,10 @@ extern unsigned char __res[]; static void setup_smc1_ioports(void); static void setup_smc2_ioports(void); -static void __init mpc885ads_scc_phy_init(char); +static struct fs_mii_fec_platform_info mpc8xx_mdio_fec_pdata; +static void setup_fec1_ioports(void); +static void setup_fec2_ioports(void); +static void setup_scc3_ioports(void); static struct fs_uart_platform_info mpc885_uart_pdata[] = { [fsid_smc1_uart] = { @@ -61,23 +64,8 @@ static struct fs_uart_platform_info mpc885_uart_pdata[] = { }, }; -static struct fs_mii_bus_info fec_mii_bus_info = { - .method = fsmii_fec, - .id = 0, -}; - -static struct fs_mii_bus_info scc_mii_bus_info = { -#ifdef CONFIG_SCC_ENET_8xx_FIXED - .method = fsmii_fixed, -#else - .method = fsmii_fec, -#endif - - .id = 0, -}; - -static struct fs_platform_info mpc8xx_fec_pdata[] = { - { +static struct fs_platform_info mpc8xx_enet_pdata[] = { + [fsid_fec1] = { .rx_ring = 128, .tx_ring = 16, .rx_copybreak = 240, @@ -85,11 +73,12 @@ static struct fs_platform_info mpc8xx_fec_pdata[] = { .use_napi = 1, .napi_weight = 17, - .phy_addr = 0, - .phy_irq = SIU_IRQ7, + .init_ioports = setup_fec1_ioports, - .bus_info = &fec_mii_bus_info, - }, { + .bus_id = "0:00", + .has_phy = 1, + }, + [fsid_fec2] = { .rx_ring = 128, .tx_ring = 16, .rx_copybreak = 240, @@ -97,35 +86,32 @@ static struct fs_platform_info mpc8xx_fec_pdata[] = { .use_napi = 1, .napi_weight = 17, - .phy_addr = 1, - .phy_irq = SIU_IRQ7, - - .bus_info = &fec_mii_bus_info, - } -}; + .init_ioports = setup_fec2_ioports, -static struct fs_platform_info mpc8xx_scc_pdata = { - .rx_ring = 64, - .tx_ring = 8, - .rx_copybreak = 240, + .bus_id = "0:01", + .has_phy = 1, + }, + [fsid_scc3] = { + .rx_ring = 64, + .tx_ring = 8, + .rx_copybreak = 240, - .use_napi = 1, - .napi_weight = 17, + .use_napi = 1, + .napi_weight = 17, - .phy_addr = 2, -#ifdef CONFIG_MPC8xx_SCC_ENET_FIXED - .phy_irq = -1, + .init_ioports = setup_scc3_ioports, +#ifdef CONFIG_FIXED_MII_10_FDX + .bus_id = "fixed@100:1", #else - .phy_irq = SIU_IRQ7, -#endif - - .bus_info = &scc_mii_bus_info, + .bus_id = "0:02", + #endif + }, }; void __init board_init(void) { - volatile cpm8xx_t *cp = cpmp; - unsigned int *bcsr_io; + cpm8xx_t *cp = cpmp; + unsigned int *bcsr_io; #ifdef CONFIG_FS_ENET immap_t *immap = (immap_t *) IMAP_ADDR; @@ -164,6 +150,14 @@ void __init board_init(void) /* use MDC for MII (common) */ setbits16(&immap->im_ioport.iop_pdpar, 0x0080); clrbits16(&immap->im_ioport.iop_pddir, 0x0080); + bcsr_io = ioremap(BCSR5, sizeof(unsigned long)); + clrbits32(bcsr_io,BCSR5_MII1_EN); + clrbits32(bcsr_io,BCSR5_MII1_RST); +#ifdef CONFIG_MPC8xx_SECOND_ETH_FEC2 + clrbits32(bcsr_io,BCSR5_MII2_EN); + clrbits32(bcsr_io,BCSR5_MII2_RST); +#endif + iounmap(bcsr_io); #endif } @@ -194,8 +188,8 @@ static void setup_fec2_ioports(void) /* configure FEC2 pins */ setbits32(&immap->im_cpm.cp_pepar, 0x0003fffc); setbits32(&immap->im_cpm.cp_pedir, 0x0003fffc); - setbits32(&immap->im_cpm.cp_peso, 0x00037800); clrbits32(&immap->im_cpm.cp_peso, 0x000087fc); + setbits32(&immap->im_cpm.cp_peso, 0x00037800); clrbits32(&immap->im_cpm.cp_cptr, 0x00000080); } @@ -213,6 +207,8 @@ static void setup_scc3_ioports(void) /* Enable the PHY. */ + clrbits32(bcsr_io+4, BCSR4_ETH10_RST); + udelay(1000); setbits32(bcsr_io+4, BCSR4_ETH10_RST); /* Configure port A pins for Txd and Rxd. */ @@ -254,37 +250,38 @@ static void setup_scc3_ioports(void) clrbits32(&immap->im_cpm.cp_pedir, PE_ENET_TENA); setbits32(&immap->im_cpm.cp_peso, PE_ENET_TENA); - setbits32(bcsr_io+1, BCSR1_ETHEN); + setbits32(bcsr_io+4, BCSR1_ETHEN); iounmap(bcsr_io); } +static int mac_count = 0; + static void mpc885ads_fixup_enet_pdata(struct platform_device *pdev, int fs_no) { - struct fs_platform_info *fpi = pdev->dev.platform_data; - - volatile cpm8xx_t *cp; + struct fs_platform_info *fpi; bd_t *bd = (bd_t *) __res; char *e; int i; - /* Get pointer to Communication Processor */ - cp = cpmp; + if(fs_no > ARRAY_SIZE(mpc8xx_enet_pdata)) { + printk(KERN_ERR"No network-suitable #%d device on bus", fs_no); + return; + } + + fpi = &mpc8xx_enet_pdata[fs_no]; + switch (fs_no) { case fsid_fec1: - fpi = &mpc8xx_fec_pdata[0]; fpi->init_ioports = &setup_fec1_ioports; break; case fsid_fec2: - fpi = &mpc8xx_fec_pdata[1]; fpi->init_ioports = &setup_fec2_ioports; break; case fsid_scc3: - fpi = &mpc8xx_scc_pdata; fpi->init_ioports = &setup_scc3_ioports; - mpc885ads_scc_phy_init(fpi->phy_addr); break; default: - printk(KERN_WARNING"Device %s is not supported!\n", pdev->name); + printk(KERN_WARNING "Device %s is not supported!\n", pdev->name); return; } @@ -295,7 +292,7 @@ static void mpc885ads_fixup_enet_pdata(struct platform_device *pdev, int fs_no) for (i = 0; i < 6; i++) fpi->macaddr[i] = *e++; - fpi->macaddr[5 - pdev->id]++; + fpi->macaddr[5] += mac_count++; } @@ -318,58 +315,6 @@ static void __init mpc885ads_fixup_scc_enet_pdata(struct platform_device *pdev, mpc885ads_fixup_enet_pdata(pdev, fsid_scc1 + pdev->id - 1); } -/* SCC ethernet controller does not have MII management channel. FEC1 MII - * channel is used to communicate with the 10Mbit PHY. - */ - -#define MII_ECNTRL_PINMUX 0x4 -#define FEC_ECNTRL_PINMUX 0x00000004 -#define FEC_RCNTRL_MII_MODE 0x00000004 - -/* Make MII read/write commands. - */ -#define mk_mii_write(REG, VAL, PHY_ADDR) (0x50020000 | (((REG) & 0x1f) << 18) | \ - ((VAL) & 0xffff) | ((PHY_ADDR) << 23)) - -static void mpc885ads_scc_phy_init(char phy_addr) -{ - volatile immap_t *immap; - volatile fec_t *fecp; - bd_t *bd; - - bd = (bd_t *) __res; - immap = (immap_t *) IMAP_ADDR; /* pointer to internal registers */ - fecp = &(immap->im_cpm.cp_fec); - - /* Enable MII pins of the FEC1 - */ - setbits16(&immap->im_ioport.iop_pdpar, 0x0080); - clrbits16(&immap->im_ioport.iop_pddir, 0x0080); - /* Set MII speed to 2.5 MHz - */ - out_be32(&fecp->fec_mii_speed, - ((((bd->bi_intfreq + 4999999) / 2500000) / 2) & 0x3F) << 1); - - /* Enable FEC pin MUX - */ - setbits32(&fecp->fec_ecntrl, MII_ECNTRL_PINMUX); - setbits32(&fecp->fec_r_cntrl, FEC_RCNTRL_MII_MODE); - - out_be32(&fecp->fec_mii_data, - mk_mii_write(MII_BMCR, BMCR_ISOLATE, phy_addr)); - udelay(100); - out_be32(&fecp->fec_mii_data, - mk_mii_write(MII_ADVERTISE, - ADVERTISE_10HALF | ADVERTISE_CSMA, phy_addr)); - udelay(100); - - /* Disable FEC MII settings - */ - clrbits32(&fecp->fec_ecntrl, MII_ECNTRL_PINMUX); - clrbits32(&fecp->fec_r_cntrl, FEC_RCNTRL_MII_MODE); - out_be32(&fecp->fec_mii_speed, 0); -} - static void setup_smc1_ioports(void) { immap_t *immap = (immap_t *) IMAP_ADDR; @@ -462,6 +407,9 @@ static int mpc885ads_platform_notify(struct device *dev) int __init mpc885ads_init(void) { + struct fs_mii_fec_platform_info* fmpi; + bd_t *bd = (bd_t *) __res; + printk(KERN_NOTICE "mpc885ads: Init\n"); platform_notify = mpc885ads_platform_notify; @@ -471,8 +419,17 @@ int __init mpc885ads_init(void) ppc_sys_device_enable(MPC8xx_CPM_FEC1); + ppc_sys_device_enable(MPC8xx_MDIO_FEC); + fmpi = ppc_sys_platform_devices[MPC8xx_MDIO_FEC].dev.platform_data = + &mpc8xx_mdio_fec_pdata; + + fmpi->mii_speed = ((((bd->bi_intfreq + 4999999) / 2500000) / 2) & 0x3F) << 1; + + /* No PHY interrupt line here */ + fmpi->irq[0xf] = SIU_IRQ7; + #ifdef CONFIG_MPC8xx_SECOND_ETH_SCC3 - ppc_sys_device_enable(MPC8xx_CPM_SCC1); + ppc_sys_device_enable(MPC8xx_CPM_SCC3); #endif #ifdef CONFIG_MPC8xx_SECOND_ETH_FEC2 diff --git a/arch/ppc/platforms/pq2ads_pd.h b/arch/ppc/platforms/pq2ads_pd.h index 8f14a43eafec..672483df8079 100644 --- a/arch/ppc/platforms/pq2ads_pd.h +++ b/arch/ppc/platforms/pq2ads_pd.h @@ -29,86 +29,4 @@ #define F3_RXCLK 13 #define F3_TXCLK 14 -/* Automatically generates register configurations */ -#define PC_CLK(x) ((uint)(1<<(x-1))) /* FCC CLK I/O ports */ - -#define CMXFCR_RF1CS(x) ((uint)((x-5)<<27)) /* FCC1 Receive Clock Source */ -#define CMXFCR_TF1CS(x) ((uint)((x-5)<<24)) /* FCC1 Transmit Clock Source */ -#define CMXFCR_RF2CS(x) ((uint)((x-9)<<19)) /* FCC2 Receive Clock Source */ -#define CMXFCR_TF2CS(x) ((uint)((x-9)<<16)) /* FCC2 Transmit Clock Source */ -#define CMXFCR_RF3CS(x) ((uint)((x-9)<<11)) /* FCC3 Receive Clock Source */ -#define CMXFCR_TF3CS(x) ((uint)((x-9)<<8)) /* FCC3 Transmit Clock Source */ - -#define PC_F1RXCLK PC_CLK(F1_RXCLK) -#define PC_F1TXCLK PC_CLK(F1_TXCLK) -#define CMX1_CLK_ROUTE (CMXFCR_RF1CS(F1_RXCLK) | CMXFCR_TF1CS(F1_TXCLK)) -#define CMX1_CLK_MASK ((uint)0xff000000) - -#define PC_F2RXCLK PC_CLK(F2_RXCLK) -#define PC_F2TXCLK PC_CLK(F2_TXCLK) -#define CMX2_CLK_ROUTE (CMXFCR_RF2CS(F2_RXCLK) | CMXFCR_TF2CS(F2_TXCLK)) -#define CMX2_CLK_MASK ((uint)0x00ff0000) - -#define PC_F3RXCLK PC_CLK(F3_RXCLK) -#define PC_F3TXCLK PC_CLK(F3_TXCLK) -#define CMX3_CLK_ROUTE (CMXFCR_RF3CS(F3_RXCLK) | CMXFCR_TF3CS(F3_TXCLK)) -#define CMX3_CLK_MASK ((uint)0x0000ff00) - -/* I/O Pin assignment for FCC1. I don't yet know the best way to do this, - * but there is little variation among the choices. - */ -#define PA1_COL 0x00000001U -#define PA1_CRS 0x00000002U -#define PA1_TXER 0x00000004U -#define PA1_TXEN 0x00000008U -#define PA1_RXDV 0x00000010U -#define PA1_RXER 0x00000020U -#define PA1_TXDAT 0x00003c00U -#define PA1_RXDAT 0x0003c000U -#define PA1_PSORA0 (PA1_RXDAT | PA1_TXDAT) -#define PA1_PSORA1 (PA1_COL | PA1_CRS | PA1_TXER | PA1_TXEN | \ - PA1_RXDV | PA1_RXER) -#define PA1_DIRA0 (PA1_RXDAT | PA1_CRS | PA1_COL | PA1_RXER | PA1_RXDV) -#define PA1_DIRA1 (PA1_TXDAT | PA1_TXEN | PA1_TXER) - - -/* I/O Pin assignment for FCC2. I don't yet know the best way to do this, - * but there is little variation among the choices. - */ -#define PB2_TXER 0x00000001U -#define PB2_RXDV 0x00000002U -#define PB2_TXEN 0x00000004U -#define PB2_RXER 0x00000008U -#define PB2_COL 0x00000010U -#define PB2_CRS 0x00000020U -#define PB2_TXDAT 0x000003c0U -#define PB2_RXDAT 0x00003c00U -#define PB2_PSORB0 (PB2_RXDAT | PB2_TXDAT | PB2_CRS | PB2_COL | \ - PB2_RXER | PB2_RXDV | PB2_TXER) -#define PB2_PSORB1 (PB2_TXEN) -#define PB2_DIRB0 (PB2_RXDAT | PB2_CRS | PB2_COL | PB2_RXER | PB2_RXDV) -#define PB2_DIRB1 (PB2_TXDAT | PB2_TXEN | PB2_TXER) - - -/* I/O Pin assignment for FCC3. I don't yet know the best way to do this, - * but there is little variation among the choices. - */ -#define PB3_RXDV 0x00004000U -#define PB3_RXER 0x00008000U -#define PB3_TXER 0x00010000U -#define PB3_TXEN 0x00020000U -#define PB3_COL 0x00040000U -#define PB3_CRS 0x00080000U -#define PB3_TXDAT 0x0f000000U -#define PB3_RXDAT 0x00f00000U -#define PB3_PSORB0 (PB3_RXDAT | PB3_TXDAT | PB3_CRS | PB3_COL | \ - PB3_RXER | PB3_RXDV | PB3_TXER | PB3_TXEN) -#define PB3_PSORB1 0 -#define PB3_DIRB0 (PB3_RXDAT | PB3_CRS | PB3_COL | PB3_RXER | PB3_RXDV) -#define PB3_DIRB1 (PB3_TXDAT | PB3_TXEN | PB3_TXER) - -#define FCC_MEM_OFFSET(x) (CPM_FCC_SPECIAL_BASE + (x*128)) -#define FCC1_MEM_OFFSET FCC_MEM_OFFSET(0) -#define FCC2_MEM_OFFSET FCC_MEM_OFFSET(1) - #endif diff --git a/arch/ppc/syslib/mpc85xx_devices.c b/arch/ppc/syslib/mpc85xx_devices.c index 7735336f5b8f..325136e5aee0 100644 --- a/arch/ppc/syslib/mpc85xx_devices.c +++ b/arch/ppc/syslib/mpc85xx_devices.c @@ -16,9 +16,11 @@ #include #include #include +#include #include #include #include +#include /* We use offsets for IORESOURCE_MEM since we do not know at compile time * what CCSRBAR is, will get fixed up by mach_mpc85xx_fixup @@ -82,6 +84,60 @@ static struct fsl_i2c_platform_data mpc85xx_fsl_i2c2_pdata = { .device_flags = FSL_I2C_DEV_SEPARATE_DFSRR, }; +static struct fs_platform_info mpc85xx_fcc1_pdata = { + .fs_no = fsid_fcc1, + .cp_page = CPM_CR_FCC1_PAGE, + .cp_block = CPM_CR_FCC1_SBLOCK, + + .rx_ring = 32, + .tx_ring = 32, + .rx_copybreak = 240, + .use_napi = 0, + .napi_weight = 17, + + .clk_mask = CMX1_CLK_MASK, + .clk_route = CMX1_CLK_ROUTE, + .clk_trx = (PC_F1RXCLK | PC_F1TXCLK), + + .mem_offset = FCC1_MEM_OFFSET, +}; + +static struct fs_platform_info mpc85xx_fcc2_pdata = { + .fs_no = fsid_fcc2, + .cp_page = CPM_CR_FCC2_PAGE, + .cp_block = CPM_CR_FCC2_SBLOCK, + + .rx_ring = 32, + .tx_ring = 32, + .rx_copybreak = 240, + .use_napi = 0, + .napi_weight = 17, + + .clk_mask = CMX2_CLK_MASK, + .clk_route = CMX2_CLK_ROUTE, + .clk_trx = (PC_F2RXCLK | PC_F2TXCLK), + + .mem_offset = FCC2_MEM_OFFSET, +}; + +static struct fs_platform_info mpc85xx_fcc3_pdata = { + .fs_no = fsid_fcc3, + .cp_page = CPM_CR_FCC3_PAGE, + .cp_block = CPM_CR_FCC3_SBLOCK, + + .rx_ring = 32, + .tx_ring = 32, + .rx_copybreak = 240, + .use_napi = 0, + .napi_weight = 17, + + .clk_mask = CMX3_CLK_MASK, + .clk_route = CMX3_CLK_ROUTE, + .clk_trx = (PC_F3RXCLK | PC_F3TXCLK), + + .mem_offset = FCC3_MEM_OFFSET, +}; + static struct plat_serial8250_port serial_platform_data[] = { [0] = { .mapbase = 0x4500, @@ -318,18 +374,27 @@ struct platform_device ppc_sys_platform_devices[] = { [MPC85xx_CPM_FCC1] = { .name = "fsl-cpm-fcc", .id = 1, - .num_resources = 3, + .num_resources = 4, + .dev.platform_data = &mpc85xx_fcc1_pdata, .resource = (struct resource[]) { { + .name = "fcc_regs", .start = 0x91300, .end = 0x9131F, .flags = IORESOURCE_MEM, }, { + .name = "fcc_regs_c", .start = 0x91380, .end = 0x9139F, .flags = IORESOURCE_MEM, }, + { + .name = "fcc_pram", + .start = 0x88400, + .end = 0x884ff, + .flags = IORESOURCE_MEM, + }, { .start = SIU_INT_FCC1, .end = SIU_INT_FCC1, @@ -340,18 +405,27 @@ struct platform_device ppc_sys_platform_devices[] = { [MPC85xx_CPM_FCC2] = { .name = "fsl-cpm-fcc", .id = 2, - .num_resources = 3, + .num_resources = 4, + .dev.platform_data = &mpc85xx_fcc2_pdata, .resource = (struct resource[]) { { + .name = "fcc_regs", .start = 0x91320, .end = 0x9133F, .flags = IORESOURCE_MEM, }, { + .name = "fcc_regs_c", .start = 0x913A0, .end = 0x913CF, .flags = IORESOURCE_MEM, }, + { + .name = "fcc_pram", + .start = 0x88500, + .end = 0x885ff, + .flags = IORESOURCE_MEM, + }, { .start = SIU_INT_FCC2, .end = SIU_INT_FCC2, @@ -362,18 +436,27 @@ struct platform_device ppc_sys_platform_devices[] = { [MPC85xx_CPM_FCC3] = { .name = "fsl-cpm-fcc", .id = 3, - .num_resources = 3, + .num_resources = 4, + .dev.platform_data = &mpc85xx_fcc3_pdata, .resource = (struct resource[]) { { + .name = "fcc_regs", .start = 0x91340, .end = 0x9135F, .flags = IORESOURCE_MEM, }, { + .name = "fcc_regs_c", .start = 0x913D0, .end = 0x913FF, .flags = IORESOURCE_MEM, }, + { + .name = "fcc_pram", + .start = 0x88600, + .end = 0x886ff, + .flags = IORESOURCE_MEM, + }, { .start = SIU_INT_FCC3, .end = SIU_INT_FCC3, diff --git a/arch/ppc/syslib/mpc8xx_devices.c b/arch/ppc/syslib/mpc8xx_devices.c index 6f536383866e..cf5ab47487a7 100644 --- a/arch/ppc/syslib/mpc8xx_devices.c +++ b/arch/ppc/syslib/mpc8xx_devices.c @@ -218,6 +218,14 @@ struct platform_device ppc_sys_platform_devices[] = { }, }, }, + + [MPC8xx_MDIO_FEC] = { + .name = "fsl-cpm-fec-mdio", + .id = 0, + .num_resources = 0, + + }, + }; static int __init mach_mpc8xx_fixup(struct platform_device *pdev) diff --git a/arch/ppc/syslib/mpc8xx_sys.c b/arch/ppc/syslib/mpc8xx_sys.c index eee213284855..18ba1d7ff9f1 100644 --- a/arch/ppc/syslib/mpc8xx_sys.c +++ b/arch/ppc/syslib/mpc8xx_sys.c @@ -22,7 +22,7 @@ struct ppc_sys_spec ppc_sys_specs[] = { .ppc_sys_name = "MPC86X", .mask = 0xFFFFFFFF, .value = 0x00000000, - .num_devices = 7, + .num_devices = 8, .device_list = (enum ppc_sys_devices[]) { MPC8xx_CPM_FEC1, @@ -32,13 +32,14 @@ struct ppc_sys_spec ppc_sys_specs[] = { MPC8xx_CPM_SCC4, MPC8xx_CPM_SMC1, MPC8xx_CPM_SMC2, + MPC8xx_MDIO_FEC, }, }, { .ppc_sys_name = "MPC885", .mask = 0xFFFFFFFF, .value = 0x00000000, - .num_devices = 8, + .num_devices = 9, .device_list = (enum ppc_sys_devices[]) { MPC8xx_CPM_FEC1, @@ -49,6 +50,7 @@ struct ppc_sys_spec ppc_sys_specs[] = { MPC8xx_CPM_SCC4, MPC8xx_CPM_SMC1, MPC8xx_CPM_SMC2, + MPC8xx_MDIO_FEC, }, }, { /* default match */ diff --git a/arch/ppc/syslib/pq2_devices.c b/arch/ppc/syslib/pq2_devices.c index 8692d00c08c4..fefbc217a56d 100644 --- a/arch/ppc/syslib/pq2_devices.c +++ b/arch/ppc/syslib/pq2_devices.c @@ -369,6 +369,11 @@ struct platform_device ppc_sys_platform_devices[] = { }, }, }, + [MPC82xx_MDIO_BB] = { + .name = "fsl-bb-mdio", + .id = 0, + .num_resources = 0, + }, }; static int __init mach_mpc82xx_fixup(struct platform_device *pdev) diff --git a/arch/ppc/syslib/pq2_sys.c b/arch/ppc/syslib/pq2_sys.c index fee8948162b9..f52600c0db20 100644 --- a/arch/ppc/syslib/pq2_sys.c +++ b/arch/ppc/syslib/pq2_sys.c @@ -139,13 +139,14 @@ struct ppc_sys_spec ppc_sys_specs[] = { .ppc_sys_name = "8272", .mask = 0x0000ff00, .value = 0x00000c00, - .num_devices = 12, + .num_devices = 13, .device_list = (enum ppc_sys_devices[]) { MPC82xx_CPM_FCC1, MPC82xx_CPM_FCC2, MPC82xx_CPM_SCC1, MPC82xx_CPM_SCC2, MPC82xx_CPM_SCC3, MPC82xx_CPM_SCC4, MPC82xx_CPM_SMC1, MPC82xx_CPM_SMC2, MPC82xx_CPM_SPI, MPC82xx_CPM_I2C, MPC82xx_CPM_USB, MPC82xx_SEC1, + MPC82xx_MDIO_BB, }, }, /* below is a list of the 8280 family of processors */ diff --git a/include/asm-ppc/cpm2.h b/include/asm-ppc/cpm2.h index c70344b91049..f6a7ff04ffe5 100644 --- a/include/asm-ppc/cpm2.h +++ b/include/asm-ppc/cpm2.h @@ -1093,5 +1093,100 @@ typedef struct im_idma { #define FCC_PSMR_RMII ((uint)0x00020000) /* Use RMII interface */ +/* FCC iop & clock configuration. BSP code is responsible to define Fx_RXCLK & Fx_TXCLK + * in order to use clock-computing stuff below for the FCC x + */ + +/* Automatically generates register configurations */ +#define PC_CLK(x) ((uint)(1<<(x-1))) /* FCC CLK I/O ports */ + +#define CMXFCR_RF1CS(x) ((uint)((x-5)<<27)) /* FCC1 Receive Clock Source */ +#define CMXFCR_TF1CS(x) ((uint)((x-5)<<24)) /* FCC1 Transmit Clock Source */ +#define CMXFCR_RF2CS(x) ((uint)((x-9)<<19)) /* FCC2 Receive Clock Source */ +#define CMXFCR_TF2CS(x) ((uint)((x-9)<<16)) /* FCC2 Transmit Clock Source */ +#define CMXFCR_RF3CS(x) ((uint)((x-9)<<11)) /* FCC3 Receive Clock Source */ +#define CMXFCR_TF3CS(x) ((uint)((x-9)<<8)) /* FCC3 Transmit Clock Source */ + +#define PC_F1RXCLK PC_CLK(F1_RXCLK) +#define PC_F1TXCLK PC_CLK(F1_TXCLK) +#define CMX1_CLK_ROUTE (CMXFCR_RF1CS(F1_RXCLK) | CMXFCR_TF1CS(F1_TXCLK)) +#define CMX1_CLK_MASK ((uint)0xff000000) + +#define PC_F2RXCLK PC_CLK(F2_RXCLK) +#define PC_F2TXCLK PC_CLK(F2_TXCLK) +#define CMX2_CLK_ROUTE (CMXFCR_RF2CS(F2_RXCLK) | CMXFCR_TF2CS(F2_TXCLK)) +#define CMX2_CLK_MASK ((uint)0x00ff0000) + +#define PC_F3RXCLK PC_CLK(F3_RXCLK) +#define PC_F3TXCLK PC_CLK(F3_TXCLK) +#define CMX3_CLK_ROUTE (CMXFCR_RF3CS(F3_RXCLK) | CMXFCR_TF3CS(F3_TXCLK)) +#define CMX3_CLK_MASK ((uint)0x0000ff00) + +#define CPMUX_CLK_MASK (CMX3_CLK_MASK | CMX2_CLK_MASK) +#define CPMUX_CLK_ROUTE (CMX3_CLK_ROUTE | CMX2_CLK_ROUTE) + +#define CLK_TRX (PC_F3TXCLK | PC_F3RXCLK | PC_F2TXCLK | PC_F2RXCLK) + +/* I/O Pin assignment for FCC1. I don't yet know the best way to do this, + * but there is little variation among the choices. + */ +#define PA1_COL 0x00000001U +#define PA1_CRS 0x00000002U +#define PA1_TXER 0x00000004U +#define PA1_TXEN 0x00000008U +#define PA1_RXDV 0x00000010U +#define PA1_RXER 0x00000020U +#define PA1_TXDAT 0x00003c00U +#define PA1_RXDAT 0x0003c000U +#define PA1_PSORA0 (PA1_RXDAT | PA1_TXDAT) +#define PA1_PSORA1 (PA1_COL | PA1_CRS | PA1_TXER | PA1_TXEN | \ + PA1_RXDV | PA1_RXER) +#define PA1_DIRA0 (PA1_RXDAT | PA1_CRS | PA1_COL | PA1_RXER | PA1_RXDV) +#define PA1_DIRA1 (PA1_TXDAT | PA1_TXEN | PA1_TXER) + + +/* I/O Pin assignment for FCC2. I don't yet know the best way to do this, + * but there is little variation among the choices. + */ +#define PB2_TXER 0x00000001U +#define PB2_RXDV 0x00000002U +#define PB2_TXEN 0x00000004U +#define PB2_RXER 0x00000008U +#define PB2_COL 0x00000010U +#define PB2_CRS 0x00000020U +#define PB2_TXDAT 0x000003c0U +#define PB2_RXDAT 0x00003c00U +#define PB2_PSORB0 (PB2_RXDAT | PB2_TXDAT | PB2_CRS | PB2_COL | \ + PB2_RXER | PB2_RXDV | PB2_TXER) +#define PB2_PSORB1 (PB2_TXEN) +#define PB2_DIRB0 (PB2_RXDAT | PB2_CRS | PB2_COL | PB2_RXER | PB2_RXDV) +#define PB2_DIRB1 (PB2_TXDAT | PB2_TXEN | PB2_TXER) + + +/* I/O Pin assignment for FCC3. I don't yet know the best way to do this, + * but there is little variation among the choices. + */ +#define PB3_RXDV 0x00004000U +#define PB3_RXER 0x00008000U +#define PB3_TXER 0x00010000U +#define PB3_TXEN 0x00020000U +#define PB3_COL 0x00040000U +#define PB3_CRS 0x00080000U +#define PB3_TXDAT 0x0f000000U +#define PC3_TXDAT 0x00000010U +#define PB3_RXDAT 0x00f00000U +#define PB3_PSORB0 (PB3_RXDAT | PB3_TXDAT | PB3_CRS | PB3_COL | \ + PB3_RXER | PB3_RXDV | PB3_TXER | PB3_TXEN) +#define PB3_PSORB1 0 +#define PB3_DIRB0 (PB3_RXDAT | PB3_CRS | PB3_COL | PB3_RXER | PB3_RXDV) +#define PB3_DIRB1 (PB3_TXDAT | PB3_TXEN | PB3_TXER) +#define PC3_DIRC1 (PC3_TXDAT) + +/* Handy macro to specify mem for FCCs*/ +#define FCC_MEM_OFFSET(x) (CPM_FCC_SPECIAL_BASE + (x*128)) +#define FCC1_MEM_OFFSET FCC_MEM_OFFSET(0) +#define FCC2_MEM_OFFSET FCC_MEM_OFFSET(1) +#define FCC2_MEM_OFFSET FCC_MEM_OFFSET(2) + #endif /* __CPM2__ */ #endif /* __KERNEL__ */ diff --git a/include/asm-ppc/mpc8260.h b/include/asm-ppc/mpc8260.h index 4b93481e7679..23579d4afae7 100644 --- a/include/asm-ppc/mpc8260.h +++ b/include/asm-ppc/mpc8260.h @@ -82,6 +82,7 @@ enum ppc_sys_devices { MPC82xx_CPM_SMC2, MPC82xx_CPM_USB, MPC82xx_SEC1, + MPC82xx_MDIO_BB, NUM_PPC_SYS_DEVS, }; diff --git a/include/asm-ppc/mpc8xx.h b/include/asm-ppc/mpc8xx.h index adcce33f20ae..d3a2f2fe230c 100644 --- a/include/asm-ppc/mpc8xx.h +++ b/include/asm-ppc/mpc8xx.h @@ -110,6 +110,7 @@ enum ppc_sys_devices { MPC8xx_CPM_SMC1, MPC8xx_CPM_SMC2, MPC8xx_CPM_USB, + MPC8xx_MDIO_FEC, NUM_PPC_SYS_DEVS, }; diff --git a/include/linux/fs_enet_pd.h b/include/linux/fs_enet_pd.h index 783c476b8674..74ed35a00a94 100644 --- a/include/linux/fs_enet_pd.h +++ b/include/linux/fs_enet_pd.h @@ -69,34 +69,21 @@ enum fs_ioport { fsiop_porte, }; -struct fs_mii_bus_info { - int method; /* mii method */ - int id; /* the id of the mii_bus */ - int disable_aneg; /* if the controller needs to negothiate speed & duplex */ - int lpa; /* the default board-specific vallues will be applied otherwise */ - - union { - struct { - int duplex; - int speed; - } fixed; - - struct { - /* nothing */ - } fec; - - struct { - /* nothing */ - } scc; - - struct { - int mdio_port; /* port & bit for MDIO */ - int mdio_bit; - int mdc_port; /* port & bit for MDC */ - int mdc_bit; - int delay; /* delay in us */ - } bitbang; - } i; +struct fs_mii_bit { + u32 offset; + u8 bit; + u8 polarity; +}; +struct fs_mii_bb_platform_info { + struct fs_mii_bit mdio_dir; + struct fs_mii_bit mdio_dat; + struct fs_mii_bit mdc_dat; + int mdio_port; /* port & bit for MDIO */ + int mdio_bit; + int mdc_port; /* port & bit for MDC */ + int mdc_bit; + int delay; /* delay in us */ + int irq[32]; /* irqs per phy's */ }; struct fs_platform_info { @@ -119,6 +106,7 @@ struct fs_platform_info { u32 device_flags; int phy_addr; /* the phy address (-1 no phy) */ + const char* bus_id; int phy_irq; /* the phy irq (if it exists) */ const struct fs_mii_bus_info *bus_info; @@ -130,6 +118,10 @@ struct fs_platform_info { int napi_weight; /* NAPI weight */ int use_rmii; /* use RMII mode */ + int has_phy; /* if the network is phy container as well...*/ +}; +struct fs_mii_fec_platform_info { + u32 irq[32]; + u32 mii_speed; }; - #endif -- cgit v1.2.3 From e014ff8d4285b81f0de0719d8eee72bc50bfd4be Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Mon, 21 Aug 2006 10:02:50 +0200 Subject: [PATCH] uninline ioprio_best() Saves 376 bytes (5 callers) for me. Signed-off-by: Oleg Nesterov Signed-off-by: Jens Axboe --- fs/ioprio.c | 23 +++++++++++++++++++++++ include/linux/ioprio.h | 23 +---------------------- 2 files changed, 24 insertions(+), 22 deletions(-) (limited to 'include/linux') diff --git a/fs/ioprio.c b/fs/ioprio.c index 06578311c63f..78b1deae3fa2 100644 --- a/fs/ioprio.c +++ b/fs/ioprio.c @@ -140,6 +140,29 @@ out: return ret; } +int ioprio_best(unsigned short aprio, unsigned short bprio) +{ + unsigned short aclass = IOPRIO_PRIO_CLASS(aprio); + unsigned short bclass = IOPRIO_PRIO_CLASS(bprio); + + if (!ioprio_valid(aprio)) + return bprio; + if (!ioprio_valid(bprio)) + return aprio; + + if (aclass == IOPRIO_CLASS_NONE) + aclass = IOPRIO_CLASS_BE; + if (bclass == IOPRIO_CLASS_NONE) + bclass = IOPRIO_CLASS_BE; + + if (aclass == bclass) + return min(aprio, bprio); + if (aclass > bclass) + return bprio; + else + return aprio; +} + asmlinkage long sys_ioprio_get(int which, int who) { struct task_struct *g, *p; diff --git a/include/linux/ioprio.h b/include/linux/ioprio.h index 88d5961f7a3f..8e2042b9d471 100644 --- a/include/linux/ioprio.h +++ b/include/linux/ioprio.h @@ -59,27 +59,6 @@ static inline int task_nice_ioprio(struct task_struct *task) /* * For inheritance, return the highest of the two given priorities */ -static inline int ioprio_best(unsigned short aprio, unsigned short bprio) -{ - unsigned short aclass = IOPRIO_PRIO_CLASS(aprio); - unsigned short bclass = IOPRIO_PRIO_CLASS(bprio); - - if (!ioprio_valid(aprio)) - return bprio; - if (!ioprio_valid(bprio)) - return aprio; - - if (aclass == IOPRIO_CLASS_NONE) - aclass = IOPRIO_CLASS_BE; - if (bclass == IOPRIO_CLASS_NONE) - bclass = IOPRIO_CLASS_BE; - - if (aclass == bclass) - return min(aprio, bprio); - if (aclass > bclass) - return bprio; - else - return aprio; -} +extern int ioprio_best(unsigned short aprio, unsigned short bprio); #endif -- cgit v1.2.3 From 5d67476fff2df6ff12f60b540fd0e74cf2a668f9 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Mon, 31 Jul 2006 14:11:48 -0700 Subject: SUNRPC: make rpc_unlink() take a dentry argument instead of a path Signe-off-by: Trond Myklebust (cherry picked from 88bf6d811b01a4be7fd507d18bf5f1c527989089 commit) --- fs/nfs/idmap.c | 3 +-- include/linux/sunrpc/rpc_pipe_fs.h | 2 +- net/sunrpc/auth_gss/auth_gss.c | 2 +- net/sunrpc/rpc_pipe.c | 20 ++++++-------------- 4 files changed, 9 insertions(+), 18 deletions(-) (limited to 'include/linux') diff --git a/fs/nfs/idmap.c b/fs/nfs/idmap.c index b81e7ed3c902..df0be1214358 100644 --- a/fs/nfs/idmap.c +++ b/fs/nfs/idmap.c @@ -130,9 +130,8 @@ nfs_idmap_delete(struct nfs4_client *clp) if (!idmap) return; + rpc_unlink(idmap->idmap_dentry); dput(idmap->idmap_dentry); - idmap->idmap_dentry = NULL; - rpc_unlink(idmap->idmap_path); clp->cl_idmap = NULL; kfree(idmap); } diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h index 2c2189cb30aa..04d2767d5ef7 100644 --- a/include/linux/sunrpc/rpc_pipe_fs.h +++ b/include/linux/sunrpc/rpc_pipe_fs.h @@ -44,7 +44,7 @@ extern int rpc_queue_upcall(struct inode *, struct rpc_pipe_msg *); extern struct dentry *rpc_mkdir(char *, struct rpc_clnt *); extern int rpc_rmdir(char *); extern struct dentry *rpc_mkpipe(char *, void *, struct rpc_pipe_ops *, int flags); -extern int rpc_unlink(char *); +extern int rpc_unlink(struct dentry *); extern struct vfsmount *rpc_get_mount(void); extern void rpc_put_mount(void); diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c index 4a9aa9393b97..beaa7b848246 100644 --- a/net/sunrpc/auth_gss/auth_gss.c +++ b/net/sunrpc/auth_gss/auth_gss.c @@ -718,7 +718,7 @@ gss_destroy(struct rpc_auth *auth) auth, auth->au_flavor); gss_auth = container_of(auth, struct gss_auth, rpc_auth); - rpc_unlink(gss_auth->path); + rpc_unlink(gss_auth->dentry); dput(gss_auth->dentry); gss_auth->dentry = NULL; gss_mech_put(gss_auth->mech); diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c index a3bd2db2e024..9144f2767b66 100644 --- a/net/sunrpc/rpc_pipe.c +++ b/net/sunrpc/rpc_pipe.c @@ -746,22 +746,15 @@ err_dput: } int -rpc_unlink(char *path) +rpc_unlink(struct dentry *dentry) { - struct nameidata nd; - struct dentry *dentry; + struct dentry *parent; struct inode *dir; - int error; + int error = 0; - if ((error = rpc_lookup_parent(path, &nd)) != 0) - return error; - dir = nd.dentry->d_inode; + parent = dget_parent(dentry); + dir = parent->d_inode; mutex_lock_nested(&dir->i_mutex, I_MUTEX_PARENT); - dentry = lookup_one_len(nd.last.name, nd.dentry, nd.last.len); - if (IS_ERR(dentry)) { - error = PTR_ERR(dentry); - goto out_release; - } d_drop(dentry); if (dentry->d_inode) { rpc_close_pipes(dentry->d_inode); @@ -769,9 +762,8 @@ rpc_unlink(char *path) } dput(dentry); inode_dir_notify(dir, DN_DELETE); -out_release: mutex_unlock(&dir->i_mutex); - rpc_release_path(&nd); + dput(parent); return error; } -- cgit v1.2.3 From dff02cc1a34fcb60904a2c57cb351857cc11219e Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Mon, 31 Jul 2006 14:17:18 -0700 Subject: NFS: clean up rpc_rmdir Make it take a dentry argument instead of a path Signed-off-by: Trond Myklebust (cherry picked from 648d4116eb2509f010f7f34704a650150309b3e7 commit) --- include/linux/sunrpc/rpc_pipe_fs.h | 2 +- net/sunrpc/clnt.c | 6 +++--- net/sunrpc/rpc_pipe.c | 18 +++++------------- 3 files changed, 9 insertions(+), 17 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h index 04d2767d5ef7..a481472c9484 100644 --- a/include/linux/sunrpc/rpc_pipe_fs.h +++ b/include/linux/sunrpc/rpc_pipe_fs.h @@ -42,7 +42,7 @@ RPC_I(struct inode *inode) extern int rpc_queue_upcall(struct inode *, struct rpc_pipe_msg *); extern struct dentry *rpc_mkdir(char *, struct rpc_clnt *); -extern int rpc_rmdir(char *); +extern int rpc_rmdir(struct dentry *); extern struct dentry *rpc_mkpipe(char *, void *, struct rpc_pipe_ops *, int flags); extern int rpc_unlink(struct dentry *); extern struct vfsmount *rpc_get_mount(void); diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index d6409e757219..d307556872db 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -183,7 +183,7 @@ rpc_new_client(struct rpc_xprt *xprt, char *servname, out_no_auth: if (!IS_ERR(clnt->cl_dentry)) { - rpc_rmdir(clnt->cl_pathname); + rpc_rmdir(clnt->cl_dentry); dput(clnt->cl_dentry); rpc_put_mount(); } @@ -320,8 +320,8 @@ rpc_destroy_client(struct rpc_clnt *clnt) rpc_destroy_client(clnt->cl_parent); goto out_free; } - if (clnt->cl_pathname[0]) - rpc_rmdir(clnt->cl_pathname); + if (!IS_ERR(clnt->cl_dentry)) + rpc_rmdir(clnt->cl_dentry); if (clnt->cl_xprt) { xprt_destroy(clnt->cl_xprt); clnt->cl_xprt = NULL; diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c index 9144f2767b66..9c355e1ae61a 100644 --- a/net/sunrpc/rpc_pipe.c +++ b/net/sunrpc/rpc_pipe.c @@ -684,28 +684,20 @@ err_dput: } int -rpc_rmdir(char *path) +rpc_rmdir(struct dentry *dentry) { - struct nameidata nd; - struct dentry *dentry; + struct dentry *parent; struct inode *dir; int error; - if ((error = rpc_lookup_parent(path, &nd)) != 0) - return error; - dir = nd.dentry->d_inode; + parent = dget_parent(dentry); + dir = parent->d_inode; mutex_lock_nested(&dir->i_mutex, I_MUTEX_PARENT); - dentry = lookup_one_len(nd.last.name, nd.dentry, nd.last.len); - if (IS_ERR(dentry)) { - error = PTR_ERR(dentry); - goto out_release; - } rpc_depopulate(dentry); error = __rpc_rmdir(dir, dentry); dput(dentry); -out_release: mutex_unlock(&dir->i_mutex); - rpc_release_path(&nd); + dput(parent); return error; } -- cgit v1.2.3 From 8e037094c414172481c5ce903efdab50ce932343 Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Tue, 22 Aug 2006 20:06:15 -0400 Subject: SUNRPC: avoid choosing an IPMI port for RPC traffic Some hardware uses port 664 for its hardware-based IPMI listener. Teach the RPC client to avoid using that port by raising the default minimum port number to 665. Test plan: Find a mainboard known to use port 664 for IPMI; enable IPMI; mount NFS servers in a tight loop. Signed-off-by: Chuck Lever Signed-off-by: Trond Myklebust (cherry picked from 58e8cb3a035d22fc386e1c53a5d98c3f219530fb commit) --- include/linux/sunrpc/xprt.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h index 840e47a4ccc5..3a0cca255b76 100644 --- a/include/linux/sunrpc/xprt.h +++ b/include/linux/sunrpc/xprt.h @@ -37,7 +37,7 @@ extern unsigned int xprt_max_resvport; #define RPC_MIN_RESVPORT (1U) #define RPC_MAX_RESVPORT (65535U) -#define RPC_DEF_MIN_RESVPORT (650U) +#define RPC_DEF_MIN_RESVPORT (665U) #define RPC_DEF_MAX_RESVPORT (1023U) /* -- cgit v1.2.3 From 3cedf13af9f7e61aca0dbbd11b601ac93bf93a9f Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Thu, 24 Aug 2006 15:44:12 -0400 Subject: NFSv4: increase client-provided nfs4 clientid size Neil Brown observed that the current limit of 32 bytes isn't enough to hold two ip addresses and the rest of the stuff we're putting in it, so it's often truncated to the point where it's unlikely to be unique. This can cause spurious CLID_INUSE's from the server. Signed-off-by: J. Bruce Fields Signed-off-by: Trond Myklebust (cherry picked from fc8c17ec251e984ab3df9182ed097aa5b577c915 commit) --- include/linux/nfs_xdr.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 2d3fb6416d91..db9cbf68e12b 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -659,7 +659,7 @@ struct nfs4_rename_res { struct nfs4_setclientid { const nfs4_verifier * sc_verifier; /* request */ unsigned int sc_name_len; - char sc_name[32]; /* request */ + char sc_name[48]; /* request */ u32 sc_prog; /* request */ unsigned int sc_netid_len; char sc_netid[4]; /* request */ -- cgit v1.2.3 From 3a13813e6effcfad5910d47b15b724621b50b878 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Sat, 26 Aug 2006 20:28:30 -0700 Subject: [BRIDGE] netfilter: memory corruption fix The bridge-netfilter code will overwrite memory if there is not headroom in the skb to save the header. This first showed up when using Xen with sky2 driver that doesn't allocate the extra space. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- include/linux/netfilter_bridge.h | 14 ++++++++++++-- net/bridge/br_forward.c | 10 +++++++--- 2 files changed, 19 insertions(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netfilter_bridge.h b/include/linux/netfilter_bridge.h index 10c13dc4665b..427c67ff89e9 100644 --- a/include/linux/netfilter_bridge.h +++ b/include/linux/netfilter_bridge.h @@ -48,15 +48,25 @@ enum nf_br_hook_priorities { /* Only used in br_forward.c */ static inline -void nf_bridge_maybe_copy_header(struct sk_buff *skb) +int nf_bridge_maybe_copy_header(struct sk_buff *skb) { + int err; + if (skb->nf_bridge) { if (skb->protocol == __constant_htons(ETH_P_8021Q)) { + err = skb_cow(skb, 18); + if (err) + return err; memcpy(skb->data - 18, skb->nf_bridge->data, 18); skb_push(skb, 4); - } else + } else { + err = skb_cow(skb, 16); + if (err) + return err; memcpy(skb->data - 16, skb->nf_bridge->data, 16); + } } + return 0; } /* This is called by the IP fragmenting code and it ensures there is diff --git a/net/bridge/br_forward.c b/net/bridge/br_forward.c index 6ccd32b30809..864fbbc7b24d 100644 --- a/net/bridge/br_forward.c +++ b/net/bridge/br_forward.c @@ -40,11 +40,15 @@ int br_dev_queue_push_xmit(struct sk_buff *skb) else { #ifdef CONFIG_BRIDGE_NETFILTER /* ip_refrag calls ip_fragment, doesn't copy the MAC header. */ - nf_bridge_maybe_copy_header(skb); + if (nf_bridge_maybe_copy_header(skb)) + kfree_skb(skb); + else #endif - skb_push(skb, ETH_HLEN); + { + skb_push(skb, ETH_HLEN); - dev_queue_xmit(skb); + dev_queue_xmit(skb); + } } return 0; -- cgit v1.2.3 From 737c17561fb2c6a72810cca7d7c0b8bdc29bb120 Mon Sep 17 00:00:00 2001 From: Peter Horton Date: Sat, 26 Aug 2006 09:07:36 +0100 Subject: [SERIAL] Support for Intashield 2 port PCI serial card Here is a patch that adds support for the Instashield IS-200 2 port PCI serial card. Signed-off-by: Peter Horton Signed-off-by: Russell King --- drivers/serial/8250_pci.c | 14 ++++++++++++++ include/linux/pci_ids.h | 3 +++ 2 files changed, 17 insertions(+) (limited to 'include/linux') diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c index a1d322f8a16c..cd1979daf2b8 100644 --- a/drivers/serial/8250_pci.c +++ b/drivers/serial/8250_pci.c @@ -936,6 +936,7 @@ enum pci_board_num_t { pbn_b1_8_1382400, pbn_b2_1_115200, + pbn_b2_2_115200, pbn_b2_8_115200, pbn_b2_1_460800, @@ -1243,6 +1244,12 @@ static struct pciserial_board pci_boards[] __devinitdata = { .base_baud = 115200, .uart_offset = 8, }, + [pbn_b2_2_115200] = { + .flags = FL_BASE2, + .num_ports = 2, + .base_baud = 115200, + .uart_offset = 8, + }, [pbn_b2_8_115200] = { .flags = FL_BASE2, .num_ports = 8, @@ -2339,6 +2346,13 @@ static struct pci_device_id serial_pci_tbl[] = { PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_b0_1_115200 }, + /* + * IntaShield IS-200 + */ + { PCI_VENDOR_ID_INTASHIELD, PCI_DEVICE_ID_INTASHIELD_IS200, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, /* 135a.0811 */ + pbn_b2_2_115200 }, + /* * These entries match devices with class COMMUNICATION_SERIAL, * COMMUNICATION_MODEM or COMMUNICATION_MULTISERIAL diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 4eae06b08cf2..4c2839eab7f4 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -1726,6 +1726,9 @@ #define PCI_VENDOR_ID_DOMEX 0x134a #define PCI_DEVICE_ID_DOMEX_DMX3191D 0x0001 +#define PCI_VENDOR_ID_INTASHIELD 0x135a +#define PCI_DEVICE_ID_INTASHIELD_IS200 0x0d80 + #define PCI_VENDOR_ID_QUATECH 0x135C #define PCI_DEVICE_ID_QUATECH_QSC100 0x0010 #define PCI_DEVICE_ID_QUATECH_DSC100 0x0020 -- cgit v1.2.3 From 533475d3d48eb839be2b57f6b020150abae91063 Mon Sep 17 00:00:00 2001 From: Samuel Thibault Date: Sun, 27 Aug 2006 01:23:39 -0700 Subject: [PATCH] vcsa attribute bits -> ioctl(VT_GETHIFONTMASK) When reading /dev/vcsa while a font with more than 256 characters is loaded, one of the attribute bits records the 9th bit of the character. But depending on the console driver (vgacon or fbcon for instance), that's bit 3 or bit 0. And there is no way for userland to know that, thus no way for userland to safely grab the screen content. So here is a (tested) patch: Add a VT_GETHIFONTMASK ioctl for knowing which bit is the 9th bit for VC text (vc_hi_font_mask field of the vc_data structure). Signed-off-by: Samuel Thibault Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/vt_ioctl.c | 2 ++ include/linux/compat_ioctl.h | 1 + include/linux/vt.h | 1 + 3 files changed, 4 insertions(+) (limited to 'include/linux') diff --git a/drivers/char/vt_ioctl.c b/drivers/char/vt_ioctl.c index eccffaf26faa..a5628a8b6620 100644 --- a/drivers/char/vt_ioctl.c +++ b/drivers/char/vt_ioctl.c @@ -1011,6 +1011,8 @@ int vt_ioctl(struct tty_struct *tty, struct file * file, return -EPERM; vt_dont_switch = 0; return 0; + case VT_GETHIFONTMASK: + return put_user(vc->vc_hi_font_mask, (unsigned short __user *)arg); default: return -ENOIOCTLCMD; } diff --git a/include/linux/compat_ioctl.h b/include/linux/compat_ioctl.h index 269d000bb2a3..bea0255196c4 100644 --- a/include/linux/compat_ioctl.h +++ b/include/linux/compat_ioctl.h @@ -216,6 +216,7 @@ COMPATIBLE_IOCTL(VT_RESIZE) COMPATIBLE_IOCTL(VT_RESIZEX) COMPATIBLE_IOCTL(VT_LOCKSWITCH) COMPATIBLE_IOCTL(VT_UNLOCKSWITCH) +COMPATIBLE_IOCTL(VT_GETHIFONTMASK) /* Little p (/dev/rtc, /dev/envctrl, etc.) */ COMPATIBLE_IOCTL(RTC_AIE_ON) COMPATIBLE_IOCTL(RTC_AIE_OFF) diff --git a/include/linux/vt.h b/include/linux/vt.h index 8ab334a48222..ba806e8711be 100644 --- a/include/linux/vt.h +++ b/include/linux/vt.h @@ -60,5 +60,6 @@ struct vt_consize { #define VT_RESIZEX 0x560A /* set kernel's idea of screensize + more */ #define VT_LOCKSWITCH 0x560B /* disallow vt switching */ #define VT_UNLOCKSWITCH 0x560C /* allow vt switching */ +#define VT_GETHIFONTMASK 0x560D /* return hi font mask */ #endif /* _LINUX_VT_H */ -- cgit v1.2.3 From ea817398e68dfa25612229fda7fc74580cf915fb Mon Sep 17 00:00:00 2001 From: Badari Pulavarty Date: Sun, 27 Aug 2006 01:23:52 -0700 Subject: [PATCH] Manage jbd allocations from its own slabs JBD currently allocates commit and frozen buffers from slabs. With CONFIG_SLAB_DEBUG, its possible for an allocation to cross the page boundary causing IO problems. https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=200127 So, instead of allocating these from regular slabs - manage allocation from its own slabs and disable slab debug for these slabs. [akpm@osdl.org: cleanups] Signed-off-by: Badari Pulavarty Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/jbd/commit.c | 6 ++-- fs/jbd/journal.c | 92 ++++++++++++++++++++++++++++++++++++++++++++++++---- fs/jbd/transaction.c | 9 ++--- include/linux/jbd.h | 3 ++ 4 files changed, 97 insertions(+), 13 deletions(-) (limited to 'include/linux') diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c index 0971814c38b8..42da60784311 100644 --- a/fs/jbd/commit.c +++ b/fs/jbd/commit.c @@ -261,7 +261,7 @@ void journal_commit_transaction(journal_t *journal) struct buffer_head *bh = jh2bh(jh); jbd_lock_bh_state(bh); - kfree(jh->b_committed_data); + jbd_slab_free(jh->b_committed_data, bh->b_size); jh->b_committed_data = NULL; jbd_unlock_bh_state(bh); } @@ -745,14 +745,14 @@ restart_loop: * Otherwise, we can just throw away the frozen data now. */ if (jh->b_committed_data) { - kfree(jh->b_committed_data); + jbd_slab_free(jh->b_committed_data, bh->b_size); jh->b_committed_data = NULL; if (jh->b_frozen_data) { jh->b_committed_data = jh->b_frozen_data; jh->b_frozen_data = NULL; } } else if (jh->b_frozen_data) { - kfree(jh->b_frozen_data); + jbd_slab_free(jh->b_frozen_data, bh->b_size); jh->b_frozen_data = NULL; } diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c index 8c9b28dff119..f66724ce443a 100644 --- a/fs/jbd/journal.c +++ b/fs/jbd/journal.c @@ -84,6 +84,7 @@ EXPORT_SYMBOL(journal_force_commit); static int journal_convert_superblock_v1(journal_t *, journal_superblock_t *); static void __journal_abort_soft (journal_t *journal, int errno); +static int journal_create_jbd_slab(size_t slab_size); /* * Helper function used to manage commit timeouts @@ -328,10 +329,10 @@ repeat: char *tmp; jbd_unlock_bh_state(bh_in); - tmp = jbd_rep_kmalloc(bh_in->b_size, GFP_NOFS); + tmp = jbd_slab_alloc(bh_in->b_size, GFP_NOFS); jbd_lock_bh_state(bh_in); if (jh_in->b_frozen_data) { - kfree(tmp); + jbd_slab_free(tmp, bh_in->b_size); goto repeat; } @@ -1069,17 +1070,17 @@ static int load_superblock(journal_t *journal) int journal_load(journal_t *journal) { int err; + journal_superblock_t *sb; err = load_superblock(journal); if (err) return err; + sb = journal->j_superblock; /* If this is a V2 superblock, then we have to check the * features flags on it. */ if (journal->j_format_version >= 2) { - journal_superblock_t *sb = journal->j_superblock; - if ((sb->s_feature_ro_compat & ~cpu_to_be32(JFS_KNOWN_ROCOMPAT_FEATURES)) || (sb->s_feature_incompat & @@ -1090,6 +1091,13 @@ int journal_load(journal_t *journal) } } + /* + * Create a slab for this blocksize + */ + err = journal_create_jbd_slab(cpu_to_be32(sb->s_blocksize)); + if (err) + return err; + /* Let the recovery code check whether it needs to recover any * data from the journal. */ if (journal_recover(journal)) @@ -1611,6 +1619,77 @@ void * __jbd_kmalloc (const char *where, size_t size, gfp_t flags, int retry) return kmalloc(size, flags | (retry ? __GFP_NOFAIL : 0)); } +/* + * jbd slab management: create 1k, 2k, 4k, 8k slabs as needed + * and allocate frozen and commit buffers from these slabs. + * + * Reason for doing this is to avoid, SLAB_DEBUG - since it could + * cause bh to cross page boundary. + */ + +#define JBD_MAX_SLABS 5 +#define JBD_SLAB_INDEX(size) (size >> 11) + +static kmem_cache_t *jbd_slab[JBD_MAX_SLABS]; +static const char *jbd_slab_names[JBD_MAX_SLABS] = { + "jbd_1k", "jbd_2k", "jbd_4k", NULL, "jbd_8k" +}; + +static void journal_destroy_jbd_slabs(void) +{ + int i; + + for (i = 0; i < JBD_MAX_SLABS; i++) { + if (jbd_slab[i]) + kmem_cache_destroy(jbd_slab[i]); + jbd_slab[i] = NULL; + } +} + +static int journal_create_jbd_slab(size_t slab_size) +{ + int i = JBD_SLAB_INDEX(slab_size); + + BUG_ON(i >= JBD_MAX_SLABS); + + /* + * Check if we already have a slab created for this size + */ + if (jbd_slab[i]) + return 0; + + /* + * Create a slab and force alignment to be same as slabsize - + * this will make sure that allocations won't cross the page + * boundary. + */ + jbd_slab[i] = kmem_cache_create(jbd_slab_names[i], + slab_size, slab_size, 0, NULL, NULL); + if (!jbd_slab[i]) { + printk(KERN_EMERG "JBD: no memory for jbd_slab cache\n"); + return -ENOMEM; + } + return 0; +} + +void * jbd_slab_alloc(size_t size, gfp_t flags) +{ + int idx; + + idx = JBD_SLAB_INDEX(size); + BUG_ON(jbd_slab[idx] == NULL); + return kmem_cache_alloc(jbd_slab[idx], flags | __GFP_NOFAIL); +} + +void jbd_slab_free(void *ptr, size_t size) +{ + int idx; + + idx = JBD_SLAB_INDEX(size); + BUG_ON(jbd_slab[idx] == NULL); + kmem_cache_free(jbd_slab[idx], ptr); +} + /* * Journal_head storage management */ @@ -1799,13 +1878,13 @@ static void __journal_remove_journal_head(struct buffer_head *bh) printk(KERN_WARNING "%s: freeing " "b_frozen_data\n", __FUNCTION__); - kfree(jh->b_frozen_data); + jbd_slab_free(jh->b_frozen_data, bh->b_size); } if (jh->b_committed_data) { printk(KERN_WARNING "%s: freeing " "b_committed_data\n", __FUNCTION__); - kfree(jh->b_committed_data); + jbd_slab_free(jh->b_committed_data, bh->b_size); } bh->b_private = NULL; jh->b_bh = NULL; /* debug, really */ @@ -1961,6 +2040,7 @@ static void journal_destroy_caches(void) journal_destroy_revoke_caches(); journal_destroy_journal_head_cache(); journal_destroy_handle_cache(); + journal_destroy_jbd_slabs(); } static int __init journal_init(void) diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c index 508b2ea91f43..de2e4cbbf79a 100644 --- a/fs/jbd/transaction.c +++ b/fs/jbd/transaction.c @@ -666,8 +666,9 @@ repeat: if (!frozen_buffer) { JBUFFER_TRACE(jh, "allocate memory for buffer"); jbd_unlock_bh_state(bh); - frozen_buffer = jbd_kmalloc(jh2bh(jh)->b_size, - GFP_NOFS); + frozen_buffer = + jbd_slab_alloc(jh2bh(jh)->b_size, + GFP_NOFS); if (!frozen_buffer) { printk(KERN_EMERG "%s: OOM for frozen_buffer\n", @@ -879,7 +880,7 @@ int journal_get_undo_access(handle_t *handle, struct buffer_head *bh) repeat: if (!jh->b_committed_data) { - committed_data = jbd_kmalloc(jh2bh(jh)->b_size, GFP_NOFS); + committed_data = jbd_slab_alloc(jh2bh(jh)->b_size, GFP_NOFS); if (!committed_data) { printk(KERN_EMERG "%s: No memory for committed data\n", __FUNCTION__); @@ -906,7 +907,7 @@ repeat: out: journal_put_journal_head(jh); if (unlikely(committed_data)) - kfree(committed_data); + jbd_slab_free(committed_data, bh->b_size); return err; } diff --git a/include/linux/jbd.h b/include/linux/jbd.h index 20eb34403d0c..a04c154c5207 100644 --- a/include/linux/jbd.h +++ b/include/linux/jbd.h @@ -72,6 +72,9 @@ extern int journal_enable_debug; #endif extern void * __jbd_kmalloc (const char *where, size_t size, gfp_t flags, int retry); +extern void * jbd_slab_alloc(size_t size, gfp_t flags); +extern void jbd_slab_free(void *ptr, size_t size); + #define jbd_kmalloc(size, flags) \ __jbd_kmalloc(__FUNCTION__, (size), (flags), journal_oom_retry) #define jbd_rep_kmalloc(size, flags) \ -- cgit v1.2.3 From 36920e069a87c6fccffbc0ec5e74985d94d3bcc4 Mon Sep 17 00:00:00 2001 From: KAMEZAWA Hiroyuki Date: Sun, 27 Aug 2006 01:23:52 -0700 Subject: [PATCH] register_one_node() compile fix register_one_node()'s should be defined under CONFIG_NUMA=n. fixes following bug. CC init/version.o LD init/built-in.o LD .tmp_vmlinux1 mm/built-in.o: In function `add_memory': undefined reference to `register_one_node' Signed-off-by: KAMEZAWA Hiroyuki Acked-by: Yasunori Goto Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/node.h | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/node.h b/include/linux/node.h index 81dcec84cd8f..bc001bc225c3 100644 --- a/include/linux/node.h +++ b/include/linux/node.h @@ -30,12 +30,20 @@ extern struct node node_devices[]; extern int register_node(struct node *, int, struct node *); extern void unregister_node(struct node *node); +#ifdef CONFIG_NUMA extern int register_one_node(int nid); extern void unregister_one_node(int nid); -#ifdef CONFIG_NUMA extern int register_cpu_under_node(unsigned int cpu, unsigned int nid); extern int unregister_cpu_under_node(unsigned int cpu, unsigned int nid); #else +static inline int register_one_node(int nid) +{ + return 0; +} +static inline int unregister_one_node(int nid) +{ + return 0; +} static inline int register_cpu_under_node(unsigned int cpu, unsigned int nid) { return 0; -- cgit v1.2.3 From 4df46240a1312161e3c794f6ace50ef7eb5ff3d7 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Sun, 27 Aug 2006 01:23:56 -0700 Subject: [PATCH] lockdep: annotate reiserfs reiserfs seems to have another locking level layer for the i_mutex due to the xattrs-are-a-directory thing. Signed-off-by: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/reiserfs/xattr.c | 2 +- include/linux/fs.h | 3 ++- 2 files changed, 3 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c index 39fedaa88a0c..d935fb9394e3 100644 --- a/fs/reiserfs/xattr.c +++ b/fs/reiserfs/xattr.c @@ -424,7 +424,7 @@ int xattr_readdir(struct file *file, filldir_t filler, void *buf) int res = -ENOTDIR; if (!file->f_op || !file->f_op->readdir) goto out; - mutex_lock(&inode->i_mutex); + mutex_lock_nested(&inode->i_mutex, I_MUTEX_XATTR); // down(&inode->i_zombie); res = -ENOENT; if (!IS_DEADDIR(inode)) { diff --git a/include/linux/fs.h b/include/linux/fs.h index 25610205c90d..555bc195c420 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -570,13 +570,14 @@ struct inode { * 3: quota file * * The locking order between these classes is - * parent -> child -> normal -> quota + * parent -> child -> normal -> xattr -> quota */ enum inode_i_mutex_lock_class { I_MUTEX_NORMAL, I_MUTEX_PARENT, I_MUTEX_CHILD, + I_MUTEX_XATTR, I_MUTEX_QUOTA }; -- cgit v1.2.3 From 01da5fd83d6b2c5e36b77539f6cbdd8f49849225 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Sun, 27 Aug 2006 01:24:02 -0700 Subject: [PATCH] Fix tty layer DoS and comment relevant code Unlike the other tty comment patch this one has code changes. Specifically it limits the queue size for a tty to 64K characters (128Kbytes) worst case even if the tty is ignoring tty->throttle. This is because certain drivers don't honour the throttle value correctly, although it is a useful safeguard anyway. Signed-off-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/tty_io.c | 89 +++++++++++++++++++++++++++++++++++++++++++++------ include/linux/tty.h | 1 + 2 files changed, 80 insertions(+), 10 deletions(-) (limited to 'include/linux') diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c index 2cef982585f0..bb0d9199e994 100644 --- a/drivers/char/tty_io.c +++ b/drivers/char/tty_io.c @@ -265,6 +265,17 @@ static int check_tty_count(struct tty_struct *tty, const char *routine) */ +/** + * tty_buffer_free_all - free buffers used by a tty + * @tty: tty to free from + * + * Remove all the buffers pending on a tty whether queued with data + * or in the free ring. Must be called when the tty is no longer in use + * + * Locking: none + */ + + /** * tty_buffer_free_all - free buffers used by a tty * @tty: tty to free from @@ -287,19 +298,47 @@ static void tty_buffer_free_all(struct tty_struct *tty) kfree(thead); } tty->buf.tail = NULL; + tty->buf.memory_used = 0; } +/** + * tty_buffer_init - prepare a tty buffer structure + * @tty: tty to initialise + * + * Set up the initial state of the buffer management for a tty device. + * Must be called before the other tty buffer functions are used. + * + * Locking: none + */ + static void tty_buffer_init(struct tty_struct *tty) { spin_lock_init(&tty->buf.lock); tty->buf.head = NULL; tty->buf.tail = NULL; tty->buf.free = NULL; + tty->buf.memory_used = 0; } -static struct tty_buffer *tty_buffer_alloc(size_t size) +/** + * tty_buffer_alloc - allocate a tty buffer + * @tty: tty device + * @size: desired size (characters) + * + * Allocate a new tty buffer to hold the desired number of characters. + * Return NULL if out of memory or the allocation would exceed the + * per device queue + * + * Locking: Caller must hold tty->buf.lock + */ + +static struct tty_buffer *tty_buffer_alloc(struct tty_struct *tty, size_t size) { - struct tty_buffer *p = kmalloc(sizeof(struct tty_buffer) + 2 * size, GFP_ATOMIC); + struct tty_buffer *p; + + if (tty->buf.memory_used + size > 65536) + return NULL; + p = kmalloc(sizeof(struct tty_buffer) + 2 * size, GFP_ATOMIC); if(p == NULL) return NULL; p->used = 0; @@ -309,17 +348,27 @@ static struct tty_buffer *tty_buffer_alloc(size_t size) p->read = 0; p->char_buf_ptr = (char *)(p->data); p->flag_buf_ptr = (unsigned char *)p->char_buf_ptr + size; -/* printk("Flip create %p\n", p); */ + tty->buf.memory_used += size; return p; } -/* Must be called with the tty_read lock held. This needs to acquire strategy - code to decide if we should kfree or relink a given expired buffer */ +/** + * tty_buffer_free - free a tty buffer + * @tty: tty owning the buffer + * @b: the buffer to free + * + * Free a tty buffer, or add it to the free list according to our + * internal strategy + * + * Locking: Caller must hold tty->buf.lock + */ static void tty_buffer_free(struct tty_struct *tty, struct tty_buffer *b) { /* Dumb strategy for now - should keep some stats */ -/* printk("Flip dispose %p\n", b); */ + tty->buf.memory_used -= b->size; + WARN_ON(tty->buf.memory_used < 0); + if(b->size >= 512) kfree(b); else { @@ -328,6 +377,18 @@ static void tty_buffer_free(struct tty_struct *tty, struct tty_buffer *b) } } +/** + * tty_buffer_find - find a free tty buffer + * @tty: tty owning the buffer + * @size: characters wanted + * + * Locate an existing suitable tty buffer or if we are lacking one then + * allocate a new one. We round our buffers off in 256 character chunks + * to get better allocation behaviour. + * + * Locking: Caller must hold tty->buf.lock + */ + static struct tty_buffer *tty_buffer_find(struct tty_struct *tty, size_t size) { struct tty_buffer **tbh = &tty->buf.free; @@ -339,20 +400,28 @@ static struct tty_buffer *tty_buffer_find(struct tty_struct *tty, size_t size) t->used = 0; t->commit = 0; t->read = 0; - /* DEBUG ONLY */ -/* memset(t->data, '*', size); */ -/* printk("Flip recycle %p\n", t); */ + tty->buf.memory_used += t->size; return t; } tbh = &((*tbh)->next); } /* Round the buffer size out */ size = (size + 0xFF) & ~ 0xFF; - return tty_buffer_alloc(size); + return tty_buffer_alloc(tty, size); /* Should possibly check if this fails for the largest buffer we have queued and recycle that ? */ } +/** + * tty_buffer_request_room - grow tty buffer if needed + * @tty: tty structure + * @size: size desired + * + * Make at least size bytes of linear space available for the tty + * buffer. If we fail return the size we managed to find. + * + * Locking: Takes tty->buf.lock + */ int tty_buffer_request_room(struct tty_struct *tty, size_t size) { struct tty_buffer *b, *n; diff --git a/include/linux/tty.h b/include/linux/tty.h index e421d5e34818..04827ca65781 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -59,6 +59,7 @@ struct tty_bufhead { struct tty_buffer *head; /* Queue head */ struct tty_buffer *tail; /* Active buffer */ struct tty_buffer *free; /* Free queue head */ + int memory_used; /* Buffer space used excluding free queue */ }; /* * The pty uses char_buf and flag_buf as a contiguous buffer -- cgit v1.2.3