From patchwork Thu Nov 7 06:45:34 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geliang Tang X-Patchwork-Id: 13865897 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1099E82C60 for ; Thu, 7 Nov 2024 06:45:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730961951; cv=none; b=G+o7UkkOEgMi9RJqA8YKotjN+FWC4FNQxNYLPfxQfzUEY+P0/T52GrRKpaSyFkBBXlUI4bg3BDQb9sPJvtlZm89+eixP0mbRbXDvpF5mjnVCiRk1OXoDUZJTT4ZTmwjKxSdYP/n72ihLomgZ+ibUgxiuDkKc/7Q7+KQkTJ2MVyM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730961951; c=relaxed/simple; bh=0AoqE8ex8khhASB7cJ4lr1RDhG8xYTfqiWe65RUgHHk=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=sA3KU9cCsGUppnIk/spYRqE+/5BohxR2ittdIJVBsL0BdNYFnmrD2xwqUVsI1Hcvo8jPwSwF1oOZl3qVA1AtferCviiUr1R4Bth9g943LMJe/L6LKz86+Kzi0wxGzSgpRqcMQ+34w2JywrI8iN92pir8cNmNkvdH90wyhhfMHFY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=OSy48SrI; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="OSy48SrI" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7FF96C4CECC; Thu, 7 Nov 2024 06:45:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1730961950; bh=0AoqE8ex8khhASB7cJ4lr1RDhG8xYTfqiWe65RUgHHk=; h=From:To:Cc:Subject:Date:From; b=OSy48SrIFOLDUAO3OKNkxZ0tMEmkrqnoM+bf2HqFb1mpOnRUdNYULGXiJG6iRIl/m 87XRbjyd5bsvsNQbACBzL+5QfJTU5Jv8D0Lbk0hDRnDgV3+zANbuaRRS0t26MyUcRH vMVI/TM8VQQ2zRfUGKhwzqzeyKTMgMjhp0ZKpx9pKTTgHJnie7Cfrgcv+K3WEcG/93 qpwQ8g6hMrVC+tRX+2Qad0fI0juzhU0RLdK7bieUU1U5MUTwB6lZxc7qTDq8F8f7QC SfxCJjudCOgCko3wHiHDDSOWDU4cCo/xqW1MyIQ/BcHdMfnkqrS+huhKU73Lkwyz3B Cp5fXCi7Lwzuw== From: Geliang Tang To: mptcp@lists.linux.dev Cc: Geliang Tang Subject: [PATCH mptcp-next v3 0/9] BPF path manager, part 1 Date: Thu, 7 Nov 2024 14:45:34 +0800 Message-ID: X-Mailer: git-send-email 2.45.2 Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Geliang Tang v3: - address Matt's comments in v2 (thanks) - only include cleanups and refactoring patches in this set. v2: - add BPF-related code in this set (32-36). In order to implement BPF userspace path manager, it is necessary to unify the interfaces of the path manager. This set contains some cleanups and refactoring to unify the interfaces in kernel space. Finally, define a struct mptcp_pm_ops for a userspace path manager like this: struct mptcp_pm_ops { int (*address_announce)(struct mptcp_sock *msk, struct mptcp_pm_addr_entry *local); int (*address_remove)(struct mptcp_sock *msk, u8 id); int (*subflow_create)(struct mptcp_sock *msk, struct mptcp_pm_addr_entry *local, struct mptcp_addr_info *remote); int (*subflow_destroy)(struct mptcp_sock *msk, struct mptcp_pm_addr_entry *local, struct mptcp_addr_info *remote); int (*get_local_id)(struct mptcp_sock *msk, struct mptcp_pm_addr_entry *local); u8 (*get_flags)(struct mptcp_sock *msk, struct mptcp_addr_info *skc); struct mptcp_pm_addr_entry *(*get_addr)(struct mptcp_sock *msk, u8 id); int (*dump_addr)(struct mptcp_sock *msk, mptcp_pm_addr_id_bitmap_t *bitmap); int (*set_flags)(struct mptcp_sock *msk, struct mptcp_pm_addr_entry *local, struct mptcp_addr_info *remote); u8 type; struct module *owner; struct list_head list; void (*init)(struct mptcp_sock *msk); void (*release)(struct mptcp_sock *msk); } ____cacheline_aligned_in_smp; Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/74 Geliang Tang (9): mptcp: add mptcp_userspace_pm_lookup_addr helper mptcp: add mptcp_for_each_userspace_pm_addr macro mptcp: add mptcp_userspace_pm_get_sock helper mptcp: move mptcp_pm_remove_addrs into pm_userspace mptcp: drop free_list for deleting entries mptcp: use mptcp_pm_local in pm_netlink only mptcp: drop struct mptcp_pm_add_entry mptcp: change local addr type of subflow_destroy mptcp: drop useless "err = 0" in subflow_destroy net/mptcp/pm_netlink.c | 97 +++++-------- net/mptcp/pm_userspace.c | 306 +++++++++++++++++---------------------- net/mptcp/protocol.h | 35 +++-- net/mptcp/subflow.c | 2 +- 4 files changed, 198 insertions(+), 242 deletions(-)