/* * netsniff-ng - the packet sniffing beast * Copyright (C) 2012 Christoph Jaeger * Subject to the GPL, version 2. */ #ifndef PKT_BUFF_H #define PKT_BUFF_H #include "hash.h" #include "built_in.h" #include "proto.h" #include "xmalloc.h" struct pkt_buff { /* invariant: head <= data <= tail */ uint8_t *head; uint8_t *data; uint8_t *tail; unsigned int size; struct protocol *proto; }; static inline struct pkt_buff *pkt_alloc(uint8_t *packet, unsigned int len) { struct pkt_buff *pkt = xmalloc(sizeof(*pkt)); pkt->head = packet; pkt->data = packet; pkt->tail = packet + len; pkt->size = len; pkt->proto = NULL; return pkt; } static inline void pkt_free(struct pkt_buff *pkt) { xfree(pkt); } static inline unsigned int pkt_len(struct pkt_buff *pkt) { bug_on(!pkt || pkt->data > pkt->tail); return pkt->tail - pkt->data; } static inline uint8_t *pkt_pull(struct pkt_buff *pkt, unsigned int len) { uint8_t *data = NULL; bug_on(!pkt || pkt->head > pkt->data || pkt->data > pkt->tail); if (len <= pkt_len(pkt)) { data = pkt->data; pkt->data += len; } bug_on(!pkt || pkt->head > pkt->data || pkt->data > pkt->tail); return data; } static inline uint8_t *pkt_peek(struct pkt_buff *pkt) { bug_on(!pkt || pkt->head > pkt->data || pkt->data > pkt->tail); return pkt->data; } static inline unsigned int pkt_trim(struct pkt_buff *pkt, unsigned int len) { unsigned int ret = 0; bug_on(!pkt || pkt->head > pkt->data || pkt->data > pkt->tail); if (len <= pkt_len(pkt)) ret = len; pkt->tail -= ret; bug_on(!pkt || pkt->head > pkt->data || pkt->data > pkt->tail); return ret; } static inline uint8_t *pkt_pull_tail(struct pkt_buff *pkt, unsigned int len) { uint8_t *tail = NULL; bug_on(!pkt || pkt->head > pkt->data || pkt->data > pkt->tail); if (len <= pkt_len(pkt)) { tail = pkt->tail; pkt->tail -= len; } return tail; } static inline void pkt_set_proto(struct pkt_buff *pkt, struct hash_table *table, unsigned int key) { bug_on(!pkt || !table); pkt->proto = (struct protocol *) lookup_hash(key, table); while (pkt->proto && key != pkt->proto->key) pkt->proto = pkt->proto->next; } #endif /* PKT_BUFF_H */ g msg

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author	Ben Skeggs <bskeggs@redhat.com>	2016-07-09 10:41:01 +1000
committer	Ben Skeggs <bskeggs@redhat.com>	2016-07-14 11:53:25 +1000
commit	4eeb039b3b51c53fe053f49bd2baccecac808f7d (patch)
tree	b90dbd27c7044b22de32740aba5c447f69fda485
parent	45aa4d0774a2537e9e5c35bfc876c57c93d3003c (diff)

drm/nouveau/tmr/gp100: initial support

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Diffstat

-rw-r--r--

drivers/gpu/drm/nouveau/nvkm/engine/device/base.c

1 files changed, 1 insertions, 0 deletions


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