diff options
32 files changed, 1073 insertions, 1572 deletions
diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c index 3c10b9a1ddf..ab642a4f08d 100644 --- a/arch/alpha/kernel/pci.c +++ b/arch/alpha/kernel/pci.c @@ -575,3 +575,7 @@ void pci_iounmap(struct pci_dev *dev, void __iomem * addr) EXPORT_SYMBOL(pci_iomap); EXPORT_SYMBOL(pci_iounmap); + +/* FIXME: Some boxes have multiple ISA bridges! */ +struct pci_dev *isa_bridge; +EXPORT_SYMBOL(isa_bridge); diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c index 6a3875f81a0..5592fa6e1fa 100644 --- a/arch/i386/kernel/io_apic.c +++ b/arch/i386/kernel/io_apic.c @@ -2606,25 +2606,32 @@ static struct irq_chip msi_chip = { .retrigger = ioapic_retrigger_irq, }; -int arch_setup_msi_irq(unsigned int irq, struct pci_dev *dev) +int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc) { struct msi_msg msg; - int ret; + int irq, ret; + irq = create_irq(); + if (irq < 0) + return irq; + + set_irq_msi(irq, desc); ret = msi_compose_msg(dev, irq, &msg); - if (ret < 0) + if (ret < 0) { + destroy_irq(irq); return ret; + } write_msi_msg(irq, &msg); set_irq_chip_and_handler_name(irq, &msi_chip, handle_edge_irq, "edge"); - return 0; + return irq; } void arch_teardown_msi_irq(unsigned int irq) { - return; + destroy_irq(irq); } #endif /* CONFIG_PCI_MSI */ diff --git a/arch/ia64/kernel/msi_ia64.c b/arch/ia64/kernel/msi_ia64.c index 822e59a1b82..0d05450c91c 100644 --- a/arch/ia64/kernel/msi_ia64.c +++ b/arch/ia64/kernel/msi_ia64.c @@ -64,12 +64,17 @@ static void ia64_set_msi_irq_affinity(unsigned int irq, cpumask_t cpu_mask) } #endif /* CONFIG_SMP */ -int ia64_setup_msi_irq(unsigned int irq, struct pci_dev *pdev) +int ia64_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc) { struct msi_msg msg; unsigned long dest_phys_id; - unsigned int vector; + unsigned int irq, vector; + irq = create_irq(); + if (irq < 0) + return irq; + + set_irq_msi(irq, desc); dest_phys_id = cpu_physical_id(first_cpu(cpu_online_map)); vector = irq; @@ -89,12 +94,12 @@ int ia64_setup_msi_irq(unsigned int irq, struct pci_dev *pdev) write_msi_msg(irq, &msg); set_irq_chip_and_handler(irq, &ia64_msi_chip, handle_edge_irq); - return 0; + return irq; } void ia64_teardown_msi_irq(unsigned int irq) { - return; /* no-op */ + destroy_irq(irq); } static void ia64_ack_msi_irq(unsigned int irq) @@ -126,12 +131,12 @@ static struct irq_chip ia64_msi_chip = { }; -int arch_setup_msi_irq(unsigned int irq, struct pci_dev *pdev) +int arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc) { if (platform_setup_msi_irq) - return platform_setup_msi_irq(irq, pdev); + return platform_setup_msi_irq(pdev, desc); - return ia64_setup_msi_irq(irq, pdev); + return ia64_setup_msi_irq(pdev, desc); } void arch_teardown_msi_irq(unsigned int irq) diff --git a/arch/ia64/sn/kernel/msi_sn.c b/arch/ia64/sn/kernel/msi_sn.c index b3a435fd70f..ea3dc38d73f 100644 --- a/arch/ia64/sn/kernel/msi_sn.c +++ b/arch/ia64/sn/kernel/msi_sn.c @@ -59,13 +59,12 @@ void sn_teardown_msi_irq(unsigned int irq) sn_intr_free(nasid, widget, sn_irq_info); sn_msi_info[irq].sn_irq_info = NULL; - return; + destroy_irq(irq); } -int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev) +int sn_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *entry) { struct msi_msg msg; - struct msi_desc *entry; int widget; int status; nasid_t nasid; @@ -73,8 +72,8 @@ int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev) struct sn_irq_info *sn_irq_info; struct pcibus_bussoft *bussoft = SN_PCIDEV_BUSSOFT(pdev); struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev); + int irq; - entry = get_irq_data(irq); if (!entry->msi_attrib.is_64) return -EINVAL; @@ -84,6 +83,11 @@ int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev) if (provider == NULL || provider->dma_map_consistent == NULL) return -EINVAL; + irq = create_irq(); + if (irq < 0) + return irq; + + set_irq_msi(irq, entry); /* * Set up the vector plumbing. Let the prom (via sn_intr_alloc) * decide which cpu to direct this msi at by default. @@ -95,12 +99,15 @@ int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev) SWIN_WIDGETNUM(bussoft->bs_base); sn_irq_info = kzalloc(sizeof(struct sn_irq_info), GFP_KERNEL); - if (! sn_irq_info) + if (! sn_irq_info) { + destroy_irq(irq); return -ENOMEM; + } status = sn_intr_alloc(nasid, widget, sn_irq_info, irq, -1, -1); if (status) { kfree(sn_irq_info); + destroy_irq(irq); return -ENOMEM; } @@ -121,6 +128,7 @@ int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev) if (! bus_addr) { sn_intr_free(nasid, widget, sn_irq_info); kfree(sn_irq_info); + destroy_irq(irq); return -ENOMEM; } @@ -139,7 +147,7 @@ int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev) write_msi_msg(irq, &msg); set_irq_chip_and_handler(irq, &sn_msi_chip, handle_edge_irq); - return 0; + return irq; } #ifdef CONFIG_SMP diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index 01f18c68340..2b52b087aaa 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -381,8 +381,6 @@ struct pci_dev *of_create_pci_dev(struct device_node *node, pci_device_add(dev, bus); - /* XXX pci_scan_msi_device(dev); */ - return dev; } EXPORT_SYMBOL(of_create_pci_dev); diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c index d7bad90a5ad..6be6730acb5 100644 --- a/arch/x86_64/kernel/io_apic.c +++ b/arch/x86_64/kernel/io_apic.c @@ -1956,24 +1956,31 @@ static struct irq_chip msi_chip = { .retrigger = ioapic_retrigger_irq, }; -int arch_setup_msi_irq(unsigned int irq, struct pci_dev *dev) +int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc) { struct msi_msg msg; - int ret; + int irq, ret; + irq = create_irq(); + if (irq < 0) + return irq; + + set_irq_msi(irq, desc); ret = msi_compose_msg(dev, irq, &msg); - if (ret < 0) + if (ret < 0) { + destroy_irq(irq); return ret; + } write_msi_msg(irq, &msg); set_irq_chip_and_handler_name(irq, &msi_chip, handle_edge_irq, "edge"); - return 0; + return irq; } void arch_teardown_msi_irq(unsigned int irq) { - return; + destroy_irq(irq); } #endif /* CONFIG_PCI_MSI */ diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c index c416c18007d..5a96d7611af 100644 --- a/drivers/net/bnx2.c +++ b/drivers/net/bnx2.c @@ -5947,8 +5947,7 @@ bnx2_init_board(struct pci_dev *pdev, struct net_device *dev) * responding after a while. * * AMD believes this incompatibility is unique to the 5706, and - * prefers to locally disable MSI rather than globally disabling it - * using pci_msi_quirk. + * prefers to locally disable MSI rather than globally disabling it. */ if (CHIP_NUM(bp) == CHIP_NUM_5706 && disable_msi == 0) { struct pci_dev *amd_8132 = NULL; diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index 222fcd2d10d..619c89218b4 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -3584,7 +3584,7 @@ e1000_update_stats(struct e1000_adapter *adapter) */ if (adapter->link_speed == 0) return; - if (pdev->error_state && pdev->error_state != pci_channel_io_normal) + if (pci_channel_offline(pdev)) return; spin_lock_irqsave(&adapter->stats_lock, flags); diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c index 51bd7e8ff0d..0c368288934 100644 --- a/drivers/net/ixgb/ixgb_main.c +++ b/drivers/net/ixgb/ixgb_main.c @@ -1605,7 +1605,7 @@ ixgb_update_stats(struct ixgb_adapter *adapter) struct pci_dev *pdev = adapter->pdev; /* Prevent stats update while adapter is being reset */ - if (pdev->error_state && pdev->error_state != pci_channel_io_normal) + if (pci_channel_offline(pdev)) return; if((netdev->flags & IFF_PROMISC) || (netdev->flags & IFF_ALLMULTI) || diff --git a/drivers/pci/hotplug/Kconfig b/drivers/pci/hotplug/Kconfig index adce4204d87..be92695a783 100644 --- a/drivers/pci/hotplug/Kconfig +++ b/drivers/pci/hotplug/Kconfig @@ -145,15 +145,6 @@ config HOTPLUG_PCI_SHPC When in doubt, say N. -config HOTPLUG_PCI_SHPC_POLL_EVENT_MODE - bool "Use polling mechanism for hot-plug events (for testing purpose)" - depends on HOTPLUG_PCI_SHPC - help - Say Y here if you want to use the polling mechanism for hot-plug - events for early platform testing. - - When in doubt, say N. - config HOTPLUG_PCI_RPA tristate "RPA PCI Hotplug driver" depends on HOTPLUG_PCI && PPC_PSERIES && PPC64 && !HOTPLUG_PCI_FAKE diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h index 4fb12fcda56..d19fcae8a7c 100644 --- a/drivers/pci/hotplug/pciehp.h +++ b/drivers/pci/hotplug/pciehp.h @@ -44,15 +44,20 @@ extern int pciehp_poll_time; extern int pciehp_debug; extern int pciehp_force; -/*#define dbg(format, arg...) do { if (pciehp_debug) printk(KERN_DEBUG "%s: " format, MY_NAME , ## arg); } while (0)*/ -#define dbg(format, arg...) do { if (pciehp_debug) printk("%s: " format, MY_NAME , ## arg); } while (0) -#define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME , ## arg) -#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg) -#define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg) - +#define dbg(format, arg...) \ + do { \ + if (pciehp_debug) \ + printk("%s: " format, MY_NAME , ## arg); \ + } while (0) +#define err(format, arg...) \ + printk(KERN_ERR "%s: " format, MY_NAME , ## arg) +#define info(format, arg...) \ + printk(KERN_INFO "%s: " format, MY_NAME , ## arg) +#define warn(format, arg...) \ + printk(KERN_WARNING "%s: " format, MY_NAME , ## arg) +#define SLOT_NAME_SIZE 10 struct slot { - struct slot *next; u8 bus; u8 device; u32 number; @@ -63,6 +68,8 @@ struct slot { struct hpc_ops *hpc_ops; struct hotplug_slot *hotplug_slot; struct list_head slot_list; + char name[SLOT_NAME_SIZE]; + unsigned long last_emi_toggle; }; struct event_info { @@ -70,34 +77,15 @@ struct event_info { u8 hp_slot; }; -typedef u8(*php_intr_callback_t) (u8 hp_slot, void *instance_id); - -struct php_ctlr_state_s { - struct php_ctlr_state_s *pnext; - struct pci_dev *pci_dev; - unsigned int irq; - unsigned long flags; /* spinlock's */ - u32 slot_device_offset; - u32 num_slots; - struct timer_list int_poll_timer; /* Added for poll event */ - php_intr_callback_t attention_button_callback; - php_intr_callback_t switch_change_callback; - php_intr_callback_t presence_change_callback; - php_intr_callback_t power_fault_callback; - void *callback_instance_id; - struct ctrl_reg *creg; /* Ptr to controller register space */ -}; - #define MAX_EVENTS 10 struct controller { struct controller *next; struct mutex crit_sect; /* critical section mutex */ struct mutex ctrl_lock; /* controller lock */ - struct php_ctlr_state_s *hpc_ctlr_handle; /* HPC controller handle */ int num_slots; /* Number of slots on ctlr */ int slot_num_inc; /* 1 or -1 */ struct pci_dev *pci_dev; - struct pci_bus *pci_bus; + struct list_head slot_list; struct event_info event_queue[MAX_EVENTS]; struct slot *slot; struct hpc_ops *hpc_ops; @@ -112,6 +100,8 @@ struct controller { u8 ctrlcap; u16 vendor_id; u8 cap_base; + struct timer_list poll_timer; + volatile int cmd_busy; }; #define INT_BUTTON_IGNORE 0 @@ -131,8 +121,6 @@ struct controller { #define POWERON_STATE 3 #define POWEROFF_STATE 4 -#define PCI_TO_PCI_BRIDGE_CLASS 0x00060400 - /* Error messages */ #define INTERLOCK_OPEN 0x00000002 #define ADD_NOT_SUPPORTED 0x00000003 @@ -144,10 +132,6 @@ struct controller { #define WRONG_BUS_FREQUENCY 0x0000000D #define POWER_FAILURE 0x0000000E -#define REMOVE_NOT_SUPPORTED 0x00000003 - -#define DISABLE_CARD 1 - /* Field definitions in Slot Capabilities Register */ #define ATTN_BUTTN_PRSN 0x00000001 #define PWR_CTRL_PRSN 0x00000002 @@ -155,6 +139,7 @@ struct controller { #define ATTN_LED_PRSN 0x00000008 #define PWR_LED_PRSN 0x00000010 #define HP_SUPR_RM_SUP 0x00000020 +#define EMI_PRSN 0x00020000 #define ATTN_BUTTN(cap) (cap & ATTN_BUTTN_PRSN) #define POWER_CTRL(cap) (cap & PWR_CTRL_PRSN) @@ -162,130 +147,65 @@ struct controller { #define ATTN_LED(cap) (cap & ATTN_LED_PRSN) #define PWR_LED(cap) (cap & PWR_LED_PRSN) #define HP_SUPR_RM(cap) (cap & HP_SUPR_RM_SUP) - -/* - * error Messages - */ -#define msg_initialization_err "Initialization failure, error=%d\n" -#define msg_button_on "PCI slot #%s - powering on due to button press.\n" -#define msg_button_off "PCI slot #%s - powering off due to button press.\n" -#define msg_button_cancel "PCI slot #%s - action canceled due to button press.\n" -#define msg_button_ignore "PCI slot #%s - button press ignored. (action in progress...)\n" - -/* controller functions */ -extern int pciehp_event_start_thread (void); -extern void pciehp_event_stop_thread (void); -extern int pciehp_enable_slot (struct slot *slot); -extern int pciehp_disable_slot (struct slot *slot); - -extern u8 pciehp_handle_attention_button (u8 hp_slot, void *inst_id); -extern u8 pciehp_handle_switch_change (u8 hp_slot, void *inst_id); -extern u8 pciehp_handle_presence_change (u8 hp_slot, void *inst_id); -extern u8 pciehp_handle_power_fault (u8 hp_slot, void *inst_id); -/* extern void long_delay (int delay); */ - -/* pci functions */ -extern int pciehp_configure_device (struct slot *p_slot); -extern int pciehp_unconfigure_device (struct slot *p_slot); - - +#define EMI(cap) (cap & EMI_PRSN) + +extern int pciehp_event_start_thread(void); +extern void pciehp_event_stop_thread(void); +extern int pciehp_enable_slot(struct slot *slot); +extern int pciehp_disable_slot(struct slot *slot); +extern u8 pciehp_handle_attention_button(u8 hp_slot, struct controller *ctrl); +extern u8 pciehp_handle_switch_change(u8 hp_slot, struct controller *ctrl); +extern u8 pciehp_handle_presence_change(u8 hp_slot, struct controller *ctrl); +extern u8 pciehp_handle_power_fault(u8 hp_slot, struct controller *ctrl); +extern int pciehp_configure_device(struct slot *p_slot); +extern int pciehp_unconfigure_device(struct slot *p_slot); +int pcie_init(struct controller *ctrl, struct pcie_device *dev); /* Global variables */ extern struct controller *pciehp_ctrl_list; -/* Inline functions */ - static inline struct slot *pciehp_find_slot(struct controller *ctrl, u8 device) { - struct slot *p_slot, *tmp_slot = NULL; - - p_slot = ctrl->slot; + struct slot *slot; - while (p_slot && (p_slot->device != device)) { - tmp_slot = p_slot; - p_slot = p_slot->next; + list_for_each_entry(slot, &ctrl->slot_list, slot_list) { + if (slot->device == device) + return slot; } - if (p_slot == NULL) { - err("ERROR: pciehp_find_slot device=0x%x\n", device); - p_slot = tmp_slot; - } - - return p_slot; -} - -static inline int wait_for_ctrl_irq(struct controller *ctrl) -{ - int retval = 0; - - DECLARE_WAITQUEUE(wait, current); - - add_wait_queue(&ctrl->queue, &wait); - if (!pciehp_poll_mode) - /* Sleep for up to 1 second */ - msleep_interruptible(1000); - else - msleep_interruptible(2500); - - remove_wait_queue(&ctrl->queue, &wait); - if (signal_pending(current)) - retval = -EINTR; - - return retval; -} - -#define SLOT_NAME_SIZE 10 -static inline void make_slot_name(char *buffer, int buffer_size, struct slot *slot) -{ - snprintf(buffer, buffer_size, "%04d_%04d", slot->bus, slot->number); + err("%s: slot (device=0x%x) not found\n", __FUNCTION__, device); + return NULL; } -enum php_ctlr_type { - PCI, - ISA, - ACPI -}; - -int pcie_init(struct controller *ctrl, struct pcie_device *dev); - -/* This has no meaning for PCI Express, as there is only 1 slot per port */ -int pcie_get_ctlr_slot_config(struct controller *ctrl, - int *num_ctlr_slots, - int *first_device_num, - int *physical_slot_num, - u8 *ctrlcap); - struct hpc_ops { - int (*power_on_slot) (struct slot *slot); - int (*power_off_slot) (struct slot *slot); - int (*get_power_status) (struct slot *slot, u8 *status); - int (*get_attention_status) (struct slot *slot, u8 *status); - int (*set_attention_status) (struct slot *slot, u8 status); - int (*get_latch_status) (struct slot *slot, u8 *status); - int (*get_adapter_status) (struct slot *slot, u8 *status); - - int (*get_max_bus_speed) (struct slot *slot, enum pci_bus_speed *speed); - int (*get_cur_bus_speed) (struct slot *slot, enum pci_bus_speed *speed); - - int (*get_max_lnk_width) (struct slot *slot, enum pcie_link_width *value); - int (*get_cur_lnk_width) (struct slot *slot, enum pcie_link_width *value); - - int (*query_power_fault) (struct slot *slot); - void (*green_led_on) (struct slot *slot); - void (*green_led_off) (struct slot *slot); - void (*green_led_blink) (struct slot *slot); - void (*release_ctlr) (struct controller *ctrl); - int (*check_lnk_status) (struct controller *ctrl); + int (*power_on_slot)(struct slot *slot); + int (*power_off_slot)(struct slot *slot); + int (*get_power_status)(struct slot *slot, u8 *status); + int (*get_attention_status)(struct slot *slot, u8 *status); + int (*set_attention_status)(struct slot *slot, u8 status); + int (*get_latch_status)(struct slot *slot, u8 *status); + int (*get_adapter_status)(struct slot *slot, u8 *status); + int (*get_emi_status)(struct slot *slot, u8 *status); + int (*toggle_emi)(struct slot *slot); + int (*get_max_bus_speed)(struct slot *slot, enum pci_bus_speed *speed); + int (*get_cur_bus_speed)(struct slot *slot, enum pci_bus_speed *speed); + int (*get_max_lnk_width)(struct slot *slot, enum pcie_link_width *val); + int (*get_cur_lnk_width)(struct slot *slot, enum pcie_link_width *val); + int (*query_power_fault)(struct slot *slot); + void (*green_led_on)(struct slot *slot); + void (*green_led_off)(struct slot *slot); + void (*green_led_blink)(struct slot *slot); + void (*release_ctlr)(struct controller *ctrl); + int (*check_lnk_status)(struct controller *ctrl); }; - #ifdef CONFIG_ACPI #include <acpi/acpi.h> #include <acpi/acpi_bus.h> #include <acpi/actypes.h> #include <linux/pci-acpi.h> -#define pciehp_get_hp_hw_control_from_firmware(dev) \ +#define pciehp_get_hp_hw_control_from_firmware(dev) \ pciehp_acpi_get_hp_hw_control_from_firmware(dev) static inline int pciehp_get_hp_params_from_firmware(struct pci_dev *dev, struct hotplug_params *hpp) diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c index f13f31323e8..a92eda6e02f 100644 --- a/drivers/pci/hotplug/pciehp_core.c +++ b/drivers/pci/hotplug/pciehp_core.c @@ -34,6 +34,7 @@ #include <linux/pci.h> #include "pciehp.h" #include <linux/interrupt.h> +#include <linux/time.h> /* Global variables */ int pciehp_debug; @@ -87,6 +88,95 @@ static struct hotplug_slot_ops pciehp_hotplug_slot_ops = { .get_cur_bus_speed = get_cur_bus_speed, }; +/* + * Check the status of the Electro Mechanical Interlock (EMI) + */ +static int get_lock_status(struct hotplug_slot *hotplug_slot, u8 *value) +{ + struct slot *slot = hotplug_slot->private; + return (slot->hpc_ops->get_emi_status(slot, value)); +} + +/* + * sysfs interface for the Electro Mechanical Interlock (EMI) + * 1 == locked, 0 == unlocked + */ +static ssize_t lock_read_file(struct hotplug_slot *slot, char *buf) +{ + int retval; + u8 value; + + retval = get_lock_status(slot, &value); + if (retval) + goto lock_read_exit; + retval = sprintf (buf, "%d\n", value); + +lock_read_exit: + return retval; +} + +/* + * Change the status of the Electro Mechanical Interlock (EMI) + * This is a toggle - in addition there must be at least 1 second + * in between toggles. + */ +static int set_lock_status(struct hotplug_slot *hotplug_slot, u8 status) +{ + struct slot *slot = hotplug_slot->private; + int retval; + u8 value; + + mutex_lock(&slot->ctrl->crit_sect); + + /* has it been >1 sec since our last toggle? */ + if ((get_seconds() - slot->last_emi_toggle) < 1) + return -EINVAL; + + /* see what our current state is */ + retval = get_lock_status(hotplug_slot, &value); + if (retval || (value == status)) + goto set_lock_exit; + + slot->hpc_ops->toggle_emi(slot); +set_lock_exit: + mutex_unlock(&slot->ctrl->crit_sect); + return 0; +} + +/* + * sysfs interface which allows the user to toggle the Electro Mechanical + * Interlock. Valid values are either 0 or 1. 0 == unlock, 1 == lock + */ +static ssize_t lock_write_file(struct hotplug_slot *slot, const char *buf, + size_t count) +{ + unsigned long llock; + u8 lock; + int retval = 0; + + llock = simple_strtoul(buf, NULL, 10); + lock = (u8)(llock & 0xff); + + switch (lock) { + case 0: + case 1: + retval = set_lock_status(slot, lock); + break; + default: + err ("%d is an invalid lock value\n", lock); + retval = -EINVAL; + } + if (retval) + return retval; + return count; +} + +static struct hotplug_slot_attribute hotplug_slot_attr_lock = { + .attr = {.name = "lock", .mode = S_IFREG | S_IRUGO | S_IWUSR}, + .show = lock_read_file, + .store = lock_write_file +}; + /** * release_slot - free up the memory used by a slot * @hotplug_slot: slot to free @@ -98,148 +188,108 @@ static void release_slot(struct hotplug_slot *hotplug_slot) dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); kfree(slot->hotplug_slot->info); - kfree(slot->hotplug_slot->name); kfree(slot->hotplug_slot); kfree(slot); } +static void make_slot_name(struct slot *slot) +{ + snprintf(slot->hotplug_slot->name, SLOT_NAME_SIZE, "%04d_%04d", + slot->bus, slot->number); +} + static int init_slots(struct controller *ctrl) { struct slot *slot; - struct hpc_ops *hpc_ops; struct hotplug_slot *hotplug_slot; - struct hotplug_slot_info *hotplug_slot_info; - u8 number_of_slots; - u8 slot_device; - u32 slot_number; - int result = -ENOMEM; + struct hotplug_slot_info *info; + int retval = -ENOMEM; + int i; - number_of_slots = ctrl->num_slots; - slot_device = ctrl->slot_device_offset; - slot_number = ctrl->first_slot; - - while (number_of_slots) { + for (i = 0; i < ctrl->num_slots; i++) { slot = kzalloc(sizeof(*slot), GFP_KERNEL); if (!slot) goto error; - slot->hotplug_slot = - kzalloc(sizeof(*(slot->hotplug_slot)), - GFP_KERNEL); - if (!slot->hotplug_slot) + hotplug_slot = kzalloc(sizeof(*hotplug_slot), GFP_KERNEL); + if (!hotplug_slot) goto error_slot; - hotplug_slot = slot->hotplug_slot; + slot->hotplug_slot = hotplug_slot; - hotplug_slot->info = - kzalloc(sizeof(*(hotplug_slot->info)), - GFP_KERNEL); - if (!hotplug_slot->info) + info = kzalloc(sizeof(*info), GFP_KERNEL); + if (!info) goto error_hpslot; - hotplug_slot_info = hotplug_slot->info; - hotplug_slot->name = kmalloc(SLOT_NAME_SIZE, GFP_KERNEL); - if (!hotplug_slot->name) - goto error_info; + hotplug_slot->info = info; - slot->ctrl = ctrl; - slot->bus = ctrl->slot_bus; - slot->device = slot_device; - slot->hpc_ops = hpc_ops = ctrl->hpc_ops; + hotplug_slot->name = slot->name; + slot->hp_slot = i; + slot->ctrl = ctrl; + slot->bus = ctrl->pci_dev->subordinate->number; + slot->device = ctrl->slot_device_offset + i; + slot->hpc_ops = ctrl->hpc_ops; slot->number = ctrl->first_slot; - slot->hp_slot = slot_device - ctrl->slot_device_offset; /* register this slot with the hotplug pci core */ hotplug_slot->private = slot; hotplug_slot->release = &release_slot; - make_slot_name(hotplug_slot->name, SLOT_NAME_SIZE, slot); + make_slot_name(slot); hotplug_slot->ops = &pciehp_hotplug_slot_ops; - hpc_ops->get_power_status(slot, - &(hotplug_slot_info->power_status)); - hpc_ops->get_attention_status(slot, - &(hotplug_slot_info->attention_status)); - hpc_ops->get_latch_status(slot, - &(hotplug_slot_info->latch_status)); - hpc_ops->get_adapter_status(slot, - &(hotplug_slot_info->adapter_status)); + get_power_status(hotplug_slot, &info->power_status); + get_attention_status(hotplug_slot, &info->attention_status); + get_latch_status(hotplug_slot, &info->latch_status); + get_adapter_status(hotplug_slot, &info->adapter_status); dbg("Registering bus=%x dev=%x hp_slot=%x sun=%x " - "slot_device_offset=%x\n", - slot->bus, slot->device, slot->hp_slot, slot->number, - ctrl->slot_device_offset); - result = pci_hp_register(hotplug_slot); - if (result) { - err ("pci_hp_register failed with error %d\n", result); - goto error_name; + "slot_device_offset=%x\n", slot->bus, slot->device, + slot->hp_slot, slot->number, ctrl->slot_device_offset); + retval = pci_hp_register(hotplug_slot); + if (retval) { + err ("pci_hp_register failed with error %d\n", retval); + goto error_info; + } + /* create additional sysfs entries */ + if (EMI(ctrl->ctrlcap)) { + retval = sysfs_create_file(&hotplug_slot->kobj, + &hotplug_slot_attr_lock.attr); + if (retval) { + pci_hp_deregister(hotplug_slot); + err("cannot create additional sysfs entries\n"); + goto error_info; + } } - slot->next = ctrl->slot; - ctrl->slot = slot; - - number_of_slots--; - slot_device++; - slot_number += ctrl->slot_num_inc; + list_add(&slot->slot_list, &ctrl->slot_list); } return 0; - -error_name: - kfree(hotplug_slot->name); error_info: - kfree(hotplug_slot_info); + kfree(info); error_hpslot: kfree(hotplug_slot); error_slot: kfree(slot); error: - return result; -} - - -static int cleanup_slots (struct controller * ctrl) -{ - struct slot *old_slot, *next_slot; - - old_slot = ctrl->slot; - ctrl->slot = NULL; - - while (old_slot) { - next_slot = old_slot->next; - pci_hp_deregister (old_slot->hotplug_slot); - old_slot = next_slot; - } - - - return(0); + return retval; } -static int get_ctlr_slot_config(struct controller *ctrl) +static void cleanup_slots(struct controller *ctrl) { - int num_ctlr_slots; /* Not needed; PCI Express has 1 slot per port*/ - int first_device_num; /* Not needed */ - int physical_slot_num; - u8 ctrlcap; - int rc; + struct list_head *tmp; + struct list_head *next; + struct slot *slot; |