From patchwork Wed Jun 22 11:48:38 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefano Stabellini X-Patchwork-Id: 9192543 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 7FEA060890 for ; Wed, 22 Jun 2016 11:50:41 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6ECA228364 for ; Wed, 22 Jun 2016 11:50:41 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 60D8926221; Wed, 22 Jun 2016 11:50:41 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id BFBA926221 for ; Wed, 22 Jun 2016 11:50:40 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bFgeJ-0000MK-Lf; Wed, 22 Jun 2016 11:48:51 +0000 Received: from mail6.bemta5.messagelabs.com ([195.245.231.135]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bFgeJ-0000M4-66 for xen-devel@lists.xen.org; Wed, 22 Jun 2016 11:48:51 +0000 Received: from [85.158.139.211] by server-15.bemta-5.messagelabs.com id 9C/B5-17282-22B7A675; Wed, 22 Jun 2016 11:48:50 +0000 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrNLMWRWlGSWpSXmKPExsVybKJsh65idVa 4wdLTxhZLPi5mcWD0OLr7N1MAYxRrZl5SfkUCa8bKWw3MBcudKs7M2MnUwLjFqIuRi0NIYCqj xLQjTxkhnF4miT93r7F3MXJysAkYSvx9sokNxBYRkJHovLQIrIhZoItRYsP7F6wgCWEBK4mFF +6B2SwCqhJT985hAbF5BdwkPl3dxwhiSwjISZw8NhmohoODU8Bb4tX8QJCwkICXxKF1y9khSj Ik5vXMYYWwvSQW3bgEZatJXD23iXkCI98CRoZVjBrFqUVlqUW6RsZ6SUWZ6RkluYmZObqGBqZ 6uanFxYnpqTmJScV6yfm5mxiBgVLPwMC4g3FHu98hRkkOJiVRXnnlrHAhvqT8lMqMxOKM+KLS nNTiQ4wyHBxKErw55UA5waLU9NSKtMwcYMjCpCU4eJREeM1A0rzFBYm5xZnpEKlTjIpS4rx9I AkBkERGaR5cGyxOLjHKSgnzMjIwMAjxFKQW5WaWoMq/YhTnYFQS5m0GmcKTmVcCN/0V0GImoM XL+tNBFpckIqSkGhjLPr82Xumo6cQucHCf62YTZUn5C8LtnS8mlIjLfXs2z2Txwtp3eXWm9Vq Pw9qv/Vj0727Z2nlzOaRlnMW1aut2VJw9v2LWq0ixq5vPL/rfUj0tMnhN6bQMkVnVTB0X2ze4 ac2Zupgt686iXkPWewxmNa0Fh2s5C3oZdv44dNRZtUlb9fetKy+UWIozEg21mIuKEwE+aWtCj gIAAA== X-Env-Sender: sstabellini@kernel.org X-Msg-Ref: server-12.tower-206.messagelabs.com!1466596128!9772955!1 X-Originating-IP: [198.145.29.136] X-SpamReason: No, hits=0.0 required=7.0 tests= X-StarScan-Received: X-StarScan-Version: 8.46; banners=-,-,- X-VirusChecked: Checked Received: (qmail 63877 invoked from network); 22 Jun 2016 11:48:49 -0000 Received: from mail.kernel.org (HELO mail.kernel.org) (198.145.29.136) by server-12.tower-206.messagelabs.com with DHE-RSA-AES256-GCM-SHA384 encrypted SMTP; 22 Jun 2016 11:48:49 -0000 Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3DE5C20145; Wed, 22 Jun 2016 11:48:47 +0000 (UTC) Received: from localhost.localdomain (60.99.208.46.dyn.plus.net [46.208.99.60]) (using TLSv1.2 with cipher AES128-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0E73620142; Wed, 22 Jun 2016 11:48:44 +0000 (UTC) From: Stefano Stabellini To: peter.maydell@linaro.org Date: Wed, 22 Jun 2016 12:48:38 +0100 Message-Id: <1466596120-28350-1-git-send-email-sstabellini@kernel.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: References: X-Virus-Scanned: ClamAV using ClamSMTP Cc: anthony.perard@citrix.com, Juergen Gross , sstabellini@kernel.org, qemu-devel@nongnu.org, xen-devel@lists.xen.org Subject: [Xen-devel] [PULL 1/3] xen: fix style of hw/block/xen_blkif.h X-BeenThere: xen-devel@lists.xen.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Juergen Gross Fix hw/block/xen_blkif.h to match qemu coding style. Signed-off-by: Juergen Gross Acked-by: Stefano Stabellini Signed-off-by: Stefano Stabellini --- hw/block/xen_blkif.h | 151 +++++++++++++++++++++++++++------------------------ 1 file changed, 81 insertions(+), 70 deletions(-) diff --git a/hw/block/xen_blkif.h b/hw/block/xen_blkif.h index e3b133b..7ccf92e 100644 --- a/hw/block/xen_blkif.h +++ b/hw/block/xen_blkif.h @@ -5,31 +5,33 @@ #include #include -/* Not a real protocol. Used to generate ring structs which contain +/* + * Not a real protocol. Used to generate ring structs which contain * the elements common to all protocols only. This way we get a * compiler-checkable way to use common struct elements, so we can - * avoid using switch(protocol) in a number of places. */ + * avoid using switch(protocol) in a number of places. + */ struct blkif_common_request { - char dummy; + char dummy; }; struct blkif_common_response { - char dummy; + char dummy; }; /* i386 protocol version */ #pragma pack(push, 4) struct blkif_x86_32_request { - uint8_t operation; /* BLKIF_OP_??? */ - uint8_t nr_segments; /* number of segments */ - blkif_vdev_t handle; /* only for read/write requests */ - uint64_t id; /* private guest value, echoed in resp */ - blkif_sector_t sector_number;/* start sector idx on disk (r/w only) */ - struct blkif_request_segment seg[BLKIF_MAX_SEGMENTS_PER_REQUEST]; + uint8_t operation; /* BLKIF_OP_??? */ + uint8_t nr_segments; /* number of segments */ + blkif_vdev_t handle; /* only for read/write requests */ + uint64_t id; /* private guest value, echoed in resp */ + blkif_sector_t sector_number; /* start sector idx on disk (r/w only) */ + struct blkif_request_segment seg[BLKIF_MAX_SEGMENTS_PER_REQUEST]; }; struct blkif_x86_32_response { - uint64_t id; /* copied from request */ - uint8_t operation; /* copied from request */ - int16_t status; /* BLKIF_RSP_??? */ + uint64_t id; /* copied from request */ + uint8_t operation; /* copied from request */ + int16_t status; /* BLKIF_RSP_??? */ }; typedef struct blkif_x86_32_request blkif_x86_32_request_t; typedef struct blkif_x86_32_response blkif_x86_32_response_t; @@ -37,83 +39,92 @@ typedef struct blkif_x86_32_response blkif_x86_32_response_t; /* x86_64 protocol version */ struct blkif_x86_64_request { - uint8_t operation; /* BLKIF_OP_??? */ - uint8_t nr_segments; /* number of segments */ - blkif_vdev_t handle; /* only for read/write requests */ - uint64_t __attribute__((__aligned__(8))) id; - blkif_sector_t sector_number;/* start sector idx on disk (r/w only) */ - struct blkif_request_segment seg[BLKIF_MAX_SEGMENTS_PER_REQUEST]; + uint8_t operation; /* BLKIF_OP_??? */ + uint8_t nr_segments; /* number of segments */ + blkif_vdev_t handle; /* only for read/write requests */ + uint64_t __attribute__((__aligned__(8))) id; + blkif_sector_t sector_number; /* start sector idx on disk (r/w only) */ + struct blkif_request_segment seg[BLKIF_MAX_SEGMENTS_PER_REQUEST]; }; struct blkif_x86_64_response { - uint64_t __attribute__((__aligned__(8))) id; - uint8_t operation; /* copied from request */ - int16_t status; /* BLKIF_RSP_??? */ + uint64_t __attribute__((__aligned__(8))) id; + uint8_t operation; /* copied from request */ + int16_t status; /* BLKIF_RSP_??? */ }; typedef struct blkif_x86_64_request blkif_x86_64_request_t; typedef struct blkif_x86_64_response blkif_x86_64_response_t; -DEFINE_RING_TYPES(blkif_common, struct blkif_common_request, struct blkif_common_response); -DEFINE_RING_TYPES(blkif_x86_32, struct blkif_x86_32_request, struct blkif_x86_32_response); -DEFINE_RING_TYPES(blkif_x86_64, struct blkif_x86_64_request, struct blkif_x86_64_response); +DEFINE_RING_TYPES(blkif_common, struct blkif_common_request, + struct blkif_common_response); +DEFINE_RING_TYPES(blkif_x86_32, struct blkif_x86_32_request, + struct blkif_x86_32_response); +DEFINE_RING_TYPES(blkif_x86_64, struct blkif_x86_64_request, + struct blkif_x86_64_response); union blkif_back_rings { - blkif_back_ring_t native; - blkif_common_back_ring_t common; - blkif_x86_32_back_ring_t x86_32_part; - blkif_x86_64_back_ring_t x86_64_part; + blkif_back_ring_t native; + blkif_common_back_ring_t common; + blkif_x86_32_back_ring_t x86_32_part; + blkif_x86_64_back_ring_t x86_64_part; }; typedef union blkif_back_rings blkif_back_rings_t; enum blkif_protocol { - BLKIF_PROTOCOL_NATIVE = 1, - BLKIF_PROTOCOL_X86_32 = 2, - BLKIF_PROTOCOL_X86_64 = 3, + BLKIF_PROTOCOL_NATIVE = 1, + BLKIF_PROTOCOL_X86_32 = 2, + BLKIF_PROTOCOL_X86_64 = 3, }; -static inline void blkif_get_x86_32_req(blkif_request_t *dst, blkif_x86_32_request_t *src) +static inline void blkif_get_x86_32_req(blkif_request_t *dst, + blkif_x86_32_request_t *src) { - int i, n = BLKIF_MAX_SEGMENTS_PER_REQUEST; + int i, n = BLKIF_MAX_SEGMENTS_PER_REQUEST; - dst->operation = src->operation; - dst->nr_segments = src->nr_segments; - dst->handle = src->handle; - dst->id = src->id; - dst->sector_number = src->sector_number; - /* Prevent the compiler from using src->... instead. */ - barrier(); - if (dst->operation == BLKIF_OP_DISCARD) { - struct blkif_request_discard *s = (void *)src; - struct blkif_request_discard *d = (void *)dst; - d->nr_sectors = s->nr_sectors; - return; - } - if (n > dst->nr_segments) - n = dst->nr_segments; - for (i = 0; i < n; i++) - dst->seg[i] = src->seg[i]; + dst->operation = src->operation; + dst->nr_segments = src->nr_segments; + dst->handle = src->handle; + dst->id = src->id; + dst->sector_number = src->sector_number; + /* Prevent the compiler from using src->... instead. */ + barrier(); + if (dst->operation == BLKIF_OP_DISCARD) { + struct blkif_request_discard *s = (void *)src; + struct blkif_request_discard *d = (void *)dst; + d->nr_sectors = s->nr_sectors; + return; + } + if (n > dst->nr_segments) { + n = dst->nr_segments; + } + for (i = 0; i < n; i++) { + dst->seg[i] = src->seg[i]; + } } -static inline void blkif_get_x86_64_req(blkif_request_t *dst, blkif_x86_64_request_t *src) +static inline void blkif_get_x86_64_req(blkif_request_t *dst, + blkif_x86_64_request_t *src) { - int i, n = BLKIF_MAX_SEGMENTS_PER_REQUEST; + int i, n = BLKIF_MAX_SEGMENTS_PER_REQUEST; - dst->operation = src->operation; - dst->nr_segments = src->nr_segments; - dst->handle = src->handle; - dst->id = src->id; - dst->sector_number = src->sector_number; - /* Prevent the compiler from using src->... instead. */ - barrier(); - if (dst->operation == BLKIF_OP_DISCARD) { - struct blkif_request_discard *s = (void *)src; - struct blkif_request_discard *d = (void *)dst; - d->nr_sectors = s->nr_sectors; - return; - } - if (n > dst->nr_segments) - n = dst->nr_segments; - for (i = 0; i < n; i++) - dst->seg[i] = src->seg[i]; + dst->operation = src->operation; + dst->nr_segments = src->nr_segments; + dst->handle = src->handle; + dst->id = src->id; + dst->sector_number = src->sector_number; + /* Prevent the compiler from using src->... instead. */ + barrier(); + if (dst->operation == BLKIF_OP_DISCARD) { + struct blkif_request_discard *s = (void *)src; + struct blkif_request_discard *d = (void *)dst; + d->nr_sectors = s->nr_sectors; + return; + } + if (n > dst->nr_segments) { + n = dst->nr_segments; + } + for (i = 0; i < n; i++) { + dst->seg[i] = src->seg[i]; + } } #endif /* __XEN_BLKIF_H__ */