mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-06 00:39:48 +00:00
Code Issues Releases Wiki Activity

chelsio: Support MSG_SPLICE_PAGES

Browse source 
Make Chelsio's TLS offload sendmsg() support MSG_SPLICE_PAGES, splicing in
pages from the source iterator if possible and copying the data in
otherwise.

This allows ->sendpage() to be replaced by something that can handle
multiple multipage folios in a single transaction.

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
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
David Howells 2023-05-31 12:00:07 +01:00 committed by Paolo Abeni
parent 735c9ee9a3
commit 116f7b361e
1 changed files with 11 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c
View file

@ -1092,7 +1092,17 @@ int chtls_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
if (copy > size)
copy = size;
if (skb_tailroom(skb) > 0) {
if (msg->msg_flags & MSG_SPLICE_PAGES) {
err = skb_splice_from_iter(skb, &msg->msg_iter, copy,
sk->sk_allocation);
if (err < 0) {
if (err == -EMSGSIZE)
goto new_buf;
goto do_fault;
}
copy = err;
sk_wmem_queued_add(sk, copy);
} else if (skb_tailroom(skb) > 0) {
copy = min(copy, skb_tailroom(skb));
if (is_tls_tx(csk))
copy = min_t(int, copy, csk->tlshws.txleft);