diff mbox series

[net-next,v6,08/14] chelsio/chtls: Use splice_eof() to flush

Message ID 20230607181920.2294972-9-dhowells@redhat.com (mailing list archive)
State Accepted
Commit c289a1601abd7313ef08ec13184df385cfb4d388
Delegated to: Netdev Maintainers
Headers show
Series splice, net: Rewrite splice-to-socket, fix SPLICE_F_MORE and handle MSG_SPLICE_PAGES in AF_TLS | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next, async
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 9 this patch: 9
netdev/cc_maintainers warning 6 maintainers not CCed: gregkh@linuxfoundation.org wsa+renesas@sang-engineering.com thomas.lendacky@amd.com Jason@zx2c4.com leon@kernel.org djwong@kernel.org
netdev/build_clang success Errors and warnings before: 8 this patch: 8
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 9 this patch: 9
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 29 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

David Howells June 7, 2023, 6:19 p.m. UTC
Allow splice to end a Chelsio TLS record after prematurely ending a
splice/sendfile due to getting an EOF condition (->splice_read() returned
0) after splice had called sendmsg() with MSG_MORE set when the user didn't
set MSG_MORE.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/CAHk-=wh=V579PDYvkpnTobCLGczbgxpMgGmmhqiTyE34Cpi5Gg@mail.gmail.com/
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Ayush Sawal <ayush.sawal@chelsio.com>
cc: "David S. Miller" <davem@davemloft.net>
cc: Eric Dumazet <edumazet@google.com>
cc: Jakub Kicinski <kuba@kernel.org>
cc: Paolo Abeni <pabeni@redhat.com>
cc: Jens Axboe <axboe@kernel.dk>
cc: Matthew Wilcox <willy@infradead.org>
cc: netdev@vger.kernel.org
---
 drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls.h | 1 +
 .../net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c  | 9 +++++++++
 .../ethernet/chelsio/inline_crypto/chtls/chtls_main.c    | 1 +
 3 files changed, 11 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls.h b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls.h
index 41714203ace8..da4818d2c856 100644
--- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls.h
+++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls.h
@@ -568,6 +568,7 @@  void chtls_destroy_sock(struct sock *sk);
 int chtls_sendmsg(struct sock *sk, struct msghdr *msg, size_t size);
 int chtls_recvmsg(struct sock *sk, struct msghdr *msg,
 		  size_t len, int flags, int *addr_len);
+void chtls_splice_eof(struct socket *sock);
 int chtls_sendpage(struct sock *sk, struct page *page,
 		   int offset, size_t size, int flags);
 int send_tx_flowc_wr(struct sock *sk, int compl,
diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c
index 5724bbbb6ee0..e08ac960c967 100644
--- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c
+++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c
@@ -1237,6 +1237,15 @@  int chtls_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
 	goto done;
 }
 
+void chtls_splice_eof(struct socket *sock)
+{
+	struct sock *sk = sock->sk;
+
+	lock_sock(sk);
+	chtls_tcp_push(sk, 0);
+	release_sock(sk);
+}
+
 int chtls_sendpage(struct sock *sk, struct page *page,
 		   int offset, size_t size, int flags)
 {
diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_main.c b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_main.c
index 1e55b12fee51..6b6787eafd2f 100644
--- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_main.c
+++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_main.c
@@ -606,6 +606,7 @@  static void __init chtls_init_ulp_ops(void)
 	chtls_cpl_prot.destroy		= chtls_destroy_sock;
 	chtls_cpl_prot.shutdown		= chtls_shutdown;
 	chtls_cpl_prot.sendmsg		= chtls_sendmsg;
+	chtls_cpl_prot.splice_eof	= chtls_splice_eof;
 	chtls_cpl_prot.sendpage		= chtls_sendpage;
 	chtls_cpl_prot.recvmsg		= chtls_recvmsg;
 	chtls_cpl_prot.setsockopt	= chtls_setsockopt;