/* * include/net/devlink.h - Network physical device Netlink interface * Copyright (c) 2016 Mellanox Technologies. All rights reserved. * Copyright (c) 2016 Jiri Pirko * * 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. */ #ifndef _NET_DEVLINK_H_ #define _NET_DEVLINK_H_ #include #include #include #include #include #include #include struct devlink_ops; struct devlink { struct list_head list; struct list_head port_list; struct list_head sb_list; const struct devlink_ops *ops; struct device *dev; possible_net_t _net; char priv[0] __aligned(NETDEV_ALIGN); }; struct devlink_port { struct list_head list; struct devlink *devlink; unsigned index; bool registered; enum devlink_port_type type; enum devlink_port_type desired_type; void *type_dev; bool split; u32 split_group; }; struct devlink_sb_pool_info { enum devlink_sb_pool_type pool_type; u32 size; enum devlink_sb_threshold_type threshold_type; }; struct devlink_ops { int (*port_type_set)(struct devlink_port *devlink_port, enum devlink_port_type port_type); int (*port_split)(struct devlink *devlink, unsigned int port_index, unsigned int count); int (*port_unsplit)(struct devlink *devlink, unsigned int port_index); int (*sb_pool_get)(struct devlink *devlink, unsigned int sb_index, u16 pool_index, struct devlink_sb_pool_info *pool_info); int (*sb_pool_set)(struct devlink *devlink, unsigned int sb_index, u16 pool_index, u32 size, enum devlink_sb_threshold_type threshold_type); int (*sb_port_pool_get)(struct devlink_port *devlink_port, unsigned int sb_index, u16 pool_index, u32 *p_threshold); int (*sb_port_pool_set)(struct devlink_port *devlink_port, unsigned int sb_index, u16 pool_index, u32 threshold); int (*sb_tc_pool_bind_get)(struct devlink_port *devlink_port, unsigned int sb_index, u16 tc_index, enum devlink_sb_pool_type pool_type, u16 *p_pool_index, u32 *p_threshold); int (*sb_tc_pool_bind_set)(struct devlink_port *devlink_port, unsigned int sb_index, u16 tc_index, enum devlink_sb_pool_type pool_type, u16 pool_index, u32 threshold); int (*sb_occ_snapshot)(struct devlink *devlink, unsigned int sb_index); int (*sb_occ_max_clear)(struct devlink *devlink, unsigned int sb_index); int (*sb_occ_port_pool_get)(struct devlink_port *devlink_port, unsigned int sb_index, u16 pool_index, u32 *p_cur, u32 *p_max); int (*sb_occ_tc_port_bind_get)(struct devlink_port *devlink_port, unsigned int sb_index, u16 tc_index, enum devlink_sb_pool_type pool_type, u32 *p_cur, u32 *p_max); int (*eswitch_mode_get)(struct devlink *devlink, u16 *p_mode); int (*eswitch_mode_set)(struct devlink *devlink, u16 mode); int (*eswitch_inline_mode_get)(struct devlink *devlink, u8 *p_inline_mode); int (*eswitch_inline_mode_set)(struct devlink *devlink, u8 inline_mode); }; static inline void *devlink_priv(struct devlink *devlink) { BUG_ON(!devlink); return &devlink->priv; } static inline struct devlink *priv_to_devlink(void *priv) { BUG_ON(!priv); return container_of(priv, struct devlink, priv); } struct ib_device; #if IS_ENABLED(CONFIG_NET_DEVLINK) struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size); int devlink_register(struct devlink *devlink, struct device *dev); void devlink_unregister(struct devlink *devlink); void devlink_free(struct devlink *devlink); int devlink_port_register(struct devlink *devlink, struct devlink_port *devlink_port, unsigned int port_index); void devlink_port_unregister(struct devlink_port *devlink_port); void devlink_port_type_eth_set(struct devlink_port *devlink_port, struct net_device *netdev); void devlink_port_type_ib_set(struct devlink_port *devlink_port, struct ib_device *ibdev); void devlink_port_type_clear(struct devlink_port *devlink_port); void devlink_port_split_set(struct devlink_port *devlink_port, u32 split_group); int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, u32 size, u16 ingress_pools_count, u16 egress_pools_count, u16 ingress_tc_count, u16 egress_tc_count); void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index); #else static inline struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size) { return kzalloc(sizeof(struct devlink) + priv_size, GFP_KERNEL); } static inline int devlink_register(struct devlink *devlink, struct device *dev) { return 0; } static inline void devlink_unregister(struct devlink *devlink) { } static inline void devlink_free(struct devlink *devlink) { kfree(devlink); } static inline int devlink_port_register(struct devlink *devlink, struct devlink_port *devlink_port, unsigned int port_index) { return 0; } static inline void devlink_port_unregister(struct devlink_port *devlink_port) { } static inline void devlink_port_type_eth_set(struct devlink_port *devlink_port, struct net_device *netdev) { } static inline void devlink_port_type_ib_set(struct devlink_port *devlink_port, struct ib_device *ibdev) { } static inline void devlink_port_type_clear(struct devlink_port *devlink_port) { } static inline void devlink_port_split_set(struct devlink_port *devlink_port, u32 split_group) { } static inline int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, u32 size, u16 ingress_pools_count, u16 egress_pools_count, u16 ingress_tc_count, u16 egress_tc_count) { return 0; } static inline void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index) { } #endif #endif /* _NET_DEVLINK_H_ */ mmit-subject'>powerpc/mm: Fix spurrious segfaults on radix with autonuma
When autonuma (Automatic NUMA balancing) marks a PTE inaccessible it clears all the protection bits but leave the PTE valid. With the Radix MMU, an attempt at executing from such a PTE will take a fault with bit 35 of SRR1 set "SRR1_ISI_N_OR_G". It is thus incorrect to treat all such faults as errors. We should pass them to handle_mm_fault() for autonuma to deal with. The case of pages that are really not executable is handled by the existing test for VM_EXEC further down. That leaves us with catching the kernel attempts at executing user pages. We can catch that earlier, even before we do find_vma. It is never valid on powerpc for the kernel to take an exec fault to begin with. So fold that test with the existing test for the kernel faulting on kernel addresses to bail out early. Fixes: 1d18ad026844 ("powerpc/mm: Detect instruction fetch denied and report") Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'sound/pci/au88x0/au88x0_a3d.h')