From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1921) id 98FA43858031; Mon, 11 Jul 2022 11:53:09 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 98FA43858031 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable From: Sebastian Huber To: newlib-cvs@sourceware.org Subject: [newlib-cygwin] Support hardware rate limiting (pacing) with TLS offload. X-Act-Checkin: newlib-cygwin X-Git-Author: John Baldwin X-Git-Refname: refs/heads/master X-Git-Oldrev: b8e36b9251f938a32958cdfb7adac59c04a4a5ee X-Git-Newrev: 5ea36d92e66fce3932c15a35c427653973efb115 Message-Id: <20220711115309.98FA43858031@sourceware.org> Date: Mon, 11 Jul 2022 11:53:09 +0000 (GMT) X-BeenThere: newlib-cvs@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Newlib GIT logs List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 11 Jul 2022 11:53:09 -0000 https://sourceware.org/git/gitweb.cgi?p=3Dnewlib-cygwin.git;h=3D5ea36d92e66= fce3932c15a35c427653973efb115 commit 5ea36d92e66fce3932c15a35c427653973efb115 Author: John Baldwin Date: Thu Oct 29 00:23:16 2020 +0000 Support hardware rate limiting (pacing) with TLS offload. =20 - Add a new send tag type for a send tag that supports both rate limiting (packet pacing) and TLS offload (mostly similar to D22669 but adds a separate structure when allocating the new tag type). =20 - When allocating a send tag for TLS offload, check to see if the connection already has a pacing rate. If so, allocate a tag that supports both rate limiting and TLS offload rather than a plain TLS offload tag. =20 - When setting an initial rate on an existing ifnet KTLS connection, set the rate in the TCP control block inp and then reset the TLS send tag (via ktls_output_eagain) to reallocate a TLS + ratelimit send tag. This allocates the TLS send tag asynchronously from a task queue, so the TLS rate limit tag alloc is always sleepable. =20 - When modifying a rate on a connection using KTLS, look for a TLS send tag. If the send tag is only a plain TLS send tag, assume we failed to allocate a TLS ratelimit tag (either during the TCP_TXTLS_ENABLE socket option, or during the send tag reset triggered by ktls_output_eagain) and ignore the new rate. If the send tag is a ratelimit TLS send tag, change the rate on the TLS tag and leave the inp tag alone. =20 - Lock the inp lock when setting sb_tls_info for a socket send buffer so that the routines in tcp_ratelimit can safely dereference the pointer without needing to grab the socket buffer lock. =20 - Add an IFCAP_TXTLS_RTLMT capability flag and associated administrative controls in ifconfig(8). TLS rate limit tags are only allocated if this capability is enabled. Note that TLS offload (whether unlimited or rate limited) always requires IFCAP_TXTLS[46]. =20 Reviewed by: gallatin, hselasky Relnotes: yes Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D26691 Diff: --- newlib/libc/sys/rtems/include/net/if.h | 1 + 1 file changed, 1 insertion(+) diff --git a/newlib/libc/sys/rtems/include/net/if.h b/newlib/libc/sys/rtems= /include/net/if.h index c9f07eca7..4147cd0f4 100644 --- a/newlib/libc/sys/rtems/include/net/if.h +++ b/newlib/libc/sys/rtems/include/net/if.h @@ -250,6 +250,7 @@ struct if_data { #define IFCAP_TXTLS6 0x10000000 /* can do TLS encryption and segmentation= for TCP6 */ #define IFCAP_VXLAN_HWCSUM 0x20000000 /* can do IFCAN_HWCSUM on VXLANs */ #define IFCAP_VXLAN_HWTSO 0x40000000 /* can do IFCAP_TSO on VXLANs */ +#define IFCAP_TXTLS_RTLMT 0x80000000 /* can do TLS with rate limiting */ =20 #define IFCAP_HWCSUM_IPV6 (IFCAP_RXCSUM_IPV6 | IFCAP_TXCSUM_IPV6)