From owner-svn-src-stable-10@freebsd.org Tue Oct 11 07:37:46 2016 Return-Path: Delivered-To: svn-src-stable-10@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id EB6FDC0DD55; Tue, 11 Oct 2016 07:37:46 +0000 (UTC) (envelope-from sephe@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id C6946873; Tue, 11 Oct 2016 07:37:46 +0000 (UTC) (envelope-from sephe@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u9B7bjkx011137; Tue, 11 Oct 2016 07:37:45 GMT (envelope-from sephe@FreeBSD.org) Received: (from sephe@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id u9B7bjWN011133; Tue, 11 Oct 2016 07:37:45 GMT (envelope-from sephe@FreeBSD.org) Message-Id: <201610110737.u9B7bjWN011133@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: sephe set sender to sephe@FreeBSD.org using -f From: Sepherosa Ziehau Date: Tue, 11 Oct 2016 07:37:45 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r307023 - in stable/10/sys/dev/hyperv: include vmbus X-SVN-Group: stable-10 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable-10@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SVN commit messages for only the 10-stable src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 11 Oct 2016 07:37:47 -0000 Author: sephe Date: Tue Oct 11 07:37:45 2016 New Revision: 307023 URL: https://svnweb.freebsd.org/changeset/base/307023 Log: MFC 302707-302709 302707 hyperv/vmbus: Nuke unused field from hv_vmbus_channel. Sponsored by: Microsoft OSTC Differential Revision: https://reviews.freebsd.org/D7036 302708 hyperv/bufring: Remove unused fields Sponsored by: Microsoft OSTC Differential Revision: https://reviews.freebsd.org/D7037 302709 hyperv/vmbus: Pack bool field into flags field Sponsored by: Microsoft OSTC Differential Revision: https://reviews.freebsd.org/D7038 Modified: stable/10/sys/dev/hyperv/include/hyperv.h stable/10/sys/dev/hyperv/vmbus/hv_channel.c stable/10/sys/dev/hyperv/vmbus/hv_channel_mgmt.c stable/10/sys/dev/hyperv/vmbus/hv_ring_buffer.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/dev/hyperv/include/hyperv.h ============================================================================== --- stable/10/sys/dev/hyperv/include/hyperv.h Tue Oct 11 07:30:59 2016 (r307022) +++ stable/10/sys/dev/hyperv/include/hyperv.h Tue Oct 11 07:37:45 2016 (r307023) @@ -471,7 +471,7 @@ typedef struct { uint8_t reserved[4084]; /* - * WARNING: Ring data starts here + ring_data_start_offset + * WARNING: Ring data starts here * !!! DO NOT place any fields below this !!! */ uint8_t buffer[0]; /* doubles as interrupt mask */ @@ -491,10 +491,8 @@ typedef struct { typedef struct { hv_vmbus_ring_buffer* ring_buffer; - uint32_t ring_size; /* Include the shared header */ struct mtx ring_lock; uint32_t ring_data_size; /* ring_size */ - uint32_t ring_data_start_offset; } hv_vmbus_ring_buffer_info; typedef void (*hv_vmbus_pfn_channel_callback)(void *context); @@ -553,19 +551,6 @@ typedef struct hv_vmbus_channel { hv_vmbus_pfn_channel_callback on_channel_callback; void* channel_callback_context; - /* - * If batched_reading is set to "true", mask the interrupt - * and read until the channel is empty. - * If batched_reading is set to "false", the channel is not - * going to perform batched reading. - * - * Batched reading is enabled by default; specific - * drivers that don't want this behavior can turn it off. - */ - boolean_t batched_reading; - - boolean_t is_dedicated_interrupt; - struct hypercall_sigevt_in *ch_sigevt; struct hyperv_dma ch_sigevt_dma; @@ -626,11 +611,23 @@ typedef struct hv_vmbus_channel { #define HV_VMBUS_CHAN_ISPRIMARY(chan) ((chan)->primary_channel == NULL) #define VMBUS_CHAN_FLAG_HASMNF 0x0001 +/* + * If this flag is set, this channel's interrupt will be masked in ISR, + * and the RX bufring will be drained before this channel's interrupt is + * unmasked. + * + * This flag is turned on by default. Drivers can turn it off according + * to their own requirement. + */ +#define VMBUS_CHAN_FLAG_BATCHREAD 0x0002 static inline void -hv_set_channel_read_state(hv_vmbus_channel* channel, boolean_t state) +hv_set_channel_read_state(hv_vmbus_channel* channel, boolean_t on) { - channel->batched_reading = state; + if (!on) + channel->ch_flags &= ~VMBUS_CHAN_FLAG_BATCHREAD; + else + channel->ch_flags |= VMBUS_CHAN_FLAG_BATCHREAD; } int hv_vmbus_channel_recv_packet( Modified: stable/10/sys/dev/hyperv/vmbus/hv_channel.c ============================================================================== --- stable/10/sys/dev/hyperv/vmbus/hv_channel.c Tue Oct 11 07:30:59 2016 (r307022) +++ stable/10/sys/dev/hyperv/vmbus/hv_channel.c Tue Oct 11 07:37:45 2016 (r307023) @@ -856,11 +856,13 @@ VmbusProcessChannelEvent(void* context, void* arg; uint32_t bytes_to_read; hv_vmbus_channel* channel = (hv_vmbus_channel*)context; - boolean_t is_batched_reading; + bool is_batched_reading = false; + + if (channel->ch_flags & VMBUS_CHAN_FLAG_BATCHREAD) + is_batched_reading = true; if (channel->on_channel_callback != NULL) { arg = channel->channel_callback_context; - is_batched_reading = channel->batched_reading; /* * Optimize host to guest signaling by ensuring: * 1. While reading the channel, we disable interrupts from @@ -917,7 +919,7 @@ vmbus_event_flags_proc(struct vmbus_soft if (channel == NULL || channel->rxq == NULL) continue; - if (channel->batched_reading) + if (channel->ch_flags & VMBUS_CHAN_FLAG_BATCHREAD) hv_ring_buffer_read_begin(&channel->inbound); taskqueue_enqueue(channel->rxq, &channel->channel_task); } Modified: stable/10/sys/dev/hyperv/vmbus/hv_channel_mgmt.c ============================================================================== --- stable/10/sys/dev/hyperv/vmbus/hv_channel_mgmt.c Tue Oct 11 07:30:59 2016 (r307022) +++ stable/10/sys/dev/hyperv/vmbus/hv_channel_mgmt.c Tue Oct 11 07:37:45 2016 (r307023) @@ -285,21 +285,19 @@ vmbus_channel_on_offer_internal(struct v { hv_vmbus_channel* new_channel; - /* Allocate the channel object and save this offer */ + /* + * Allocate the channel object and save this offer + */ new_channel = hv_vmbus_allocate_channel(sc); new_channel->ch_id = offer->child_rel_id; new_channel->ch_subidx = offer->offer.sub_channel_index; - if (offer->monitor_allocated) - new_channel->ch_flags |= VMBUS_CHAN_FLAG_HASMNF; new_channel->ch_guid_type = offer->offer.interface_type; new_channel->ch_guid_inst = offer->offer.interface_instance; - /* - * By default we setup state to enable batched - * reading. A specific service can choose to - * disable this prior to opening the channel. - */ - new_channel->batched_reading = TRUE; + /* Batch reading is on by default */ + new_channel->ch_flags |= VMBUS_CHAN_FLAG_BATCHREAD; + if (offer->monitor_allocated) + new_channel->ch_flags |= VMBUS_CHAN_FLAG_HASMNF; new_channel->ch_sigevt = hyperv_dmamem_alloc( bus_get_dma_tag(sc->vmbus_dev), @@ -313,12 +311,8 @@ vmbus_channel_on_offer_internal(struct v return; } new_channel->ch_sigevt->hc_connid = VMBUS_CONNID_EVENT; - - if (sc->vmbus_version != VMBUS_VERSION_WS2008) { - new_channel->is_dedicated_interrupt = - (offer->is_dedicated_interrupt != 0); + if (sc->vmbus_version != VMBUS_VERSION_WS2008) new_channel->ch_sigevt->hc_connid = offer->connection_id; - } new_channel->monitor_group = (uint8_t) offer->monitor_id / 32; new_channel->monitor_bit = (uint8_t) offer->monitor_id % 32; Modified: stable/10/sys/dev/hyperv/vmbus/hv_ring_buffer.c ============================================================================== --- stable/10/sys/dev/hyperv/vmbus/hv_ring_buffer.c Tue Oct 11 07:30:59 2016 (r307022) +++ stable/10/sys/dev/hyperv/vmbus/hv_ring_buffer.c Tue Oct 11 07:37:45 2016 (r307023) @@ -288,7 +288,6 @@ hv_vmbus_ring_buffer_init( ring_info->ring_buffer->read_index = ring_info->ring_buffer->write_index = 0; - ring_info->ring_size = buffer_len; ring_info->ring_data_size = buffer_len - sizeof(hv_vmbus_ring_buffer); mtx_init(&ring_info->ring_lock, "vmbus ring buffer", NULL, MTX_SPIN);