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netinet/tcp.h: add tcp zerocopy related changes from linux v5.11

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  linux commit 18fb76ed53865c1b5d5f0157b1b825704590beb5
  net-zerocopy: Copy straggler unaligned data for TCP Rx. zerocopy.

  linux commit 94ab9eb9b234ddf23af04a4bc7e8db68e67b8778
  net-zerocopy: Defer vm zap unless actually needed.
This commit is contained in:
Szabolcs Nagy 2021-03-07 21:39:24 +00:00 committed by Rich Felker
parent b54f481fbc
commit 30c8a1456a
1 changed files with 5 additions and 0 deletions
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5
include/netinet/tcp.h
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@ -281,12 +281,17 @@ struct tcp_repair_window {
uint32_t rcv_wup;
};
#define TCP_RECEIVE_ZEROCOPY_FLAG_TLB_CLEAN_HINT 0x1
struct tcp_zerocopy_receive {
uint64_t address;
uint32_t length;
uint32_t recv_skip_hint;
uint32_t inq;
int32_t err;
uint64_t copybuf_address;
int32_t copybuf_len;
uint32_t flags;
};
#endif