#ifndef _MPC_H_ #define _MPC_H_ #include #include #include #include #include #include "mpoa_caches.h" /* kernel -> mpc-daemon */ int msg_to_mpoad(struct k_message *msg, struct mpoa_client *mpc); struct mpoa_client { struct mpoa_client *next; struct net_device *dev; /* lec in question */ int dev_num; /* e.g. 2 for lec2 */ struct atm_vcc *mpoad_vcc; /* control channel to mpoad */ uint8_t mps_ctrl_addr[ATM_ESA_LEN]; /* MPS control ATM address */ uint8_t our_ctrl_addr[ATM_ESA_LEN]; /* MPC's control ATM address */ rwlock_t ingress_lock; const struct in_cache_ops *in_ops; /* ingress cache operations */ in_cache_entry *in_cache; /* the ingress cache of this MPC */ rwlock_t egress_lock; const struct eg_cache_ops *eg_ops; /* egress cache operations */ eg_cache_entry *eg_cache; /* the egress cache of this MPC */ uint8_t *mps_macs; /* array of MPS MAC addresses, >=1 */ int number_of_mps_macs; /* number of the above MAC addresses */ struct mpc_parameters parameters; /* parameters for this client */ const struct net_device_ops *old_ops; struct net_device_ops new_ops; }; struct atm_mpoa_qos { struct atm_mpoa_qos *next; __be32 ipaddr; struct atm_qos qos; }; /* MPOA QoS operations */ struct atm_mpoa_qos *atm_mpoa_add_qos(__be32 dst_ip, struct atm_qos *qos); struct atm_mpoa_qos *atm_mpoa_search_qos(__be32 dst_ip); int atm_mpoa_delete_qos(struct atm_mpoa_qos *qos); /* Display QoS entries. This is for the procfs */ struct seq_file; void atm_mpoa_disp_qos(struct seq_file *m); #ifdef CONFIG_PROC_FS int mpc_proc_init(void); void mpc_proc_clean(void); #else #define mpc_proc_init() (0) #define mpc_proc_clean() do { } while(0) #endif #endif /* _MPC_H_ */ 58bd1beb4e7b5c94eca944be9cd23dfc752'>treecommitdiff
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authorChristoph Hellwig <hch@lst.de>2017-01-30 13:15:41 +0100
committerBjorn Helgaas <bhelgaas@google.com>2017-02-02 10:35:46 -0600
commitdfef358bd1beb4e7b5c94eca944be9cd23dfc752 (patch)
treeb9a2afb38a4c2ac8ad31f49ec0d71fe9e5b1994c /net/hsr
parent030305d69fc6963c16003f50d7e8d74b02d0a143 (diff)
PCI/MSI: Don't apply affinity if there aren't enough vectors left
Bart reported a problem wіth an out of bounds access in the low-level IRQ affinity code, which we root caused to the qla2xxx driver assigning all its MSI-X vectors to the pre and post vectors, and not having any left for the actually spread IRQs. Fix this issue by not asking for affinity assignment when there are no vectors to assign left. Fixes: 402723ad5c62 ("PCI/MSI: Provide pci_alloc_irq_vectors_affinity()") Link: https://lkml.kernel.org/r/1485359225.3093.3.camel@sandisk.com Reported-by: Bart Van Assche <bart.vanassche@sandisk.com> Tested-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'net/hsr')