From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753465AbaBCTwZ (ORCPT ); Mon, 3 Feb 2014 14:52:25 -0500 Received: from p3plsmtps2ded04.prod.phx3.secureserver.net ([208.109.80.198]:45550 "EHLO p3plsmtps2ded04.prod.phx3.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752559AbaBCTwX (ORCPT ); Mon, 3 Feb 2014 14:52:23 -0500 x-originating-ip: 72.167.245.219 From: "K. Y. Srinivasan" To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, devel@linuxdriverproject.org, olaf@aepfle.de, apw@canonical.com, jasowang@redhat.com Cc: "K. Y. Srinivasan" Subject: [PATCH 1/1] Drivers: hv: vmbus: Support per-channel driver state Date: Mon, 3 Feb 2014 12:42:45 -0800 Message-Id: <1391460165-30094-1-git-send-email-kys@microsoft.com> X-Mailer: git-send-email 1.7.4.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org As we implement Virtual Receive Side Scaling on the networking side (the VRSS patches are currently under review), it will be useful to have per-channel state that vmbus drivers can manage. Add support for managing per-channel state. Signed-off-by: K. Y. Srinivasan --- include/linux/hyperv.h | 14 ++++++++++++++ 1 files changed, 14 insertions(+), 0 deletions(-) diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index 15da677..96fb70e 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -1043,6 +1043,10 @@ struct vmbus_channel { * This will be NULL for the primary channel. */ struct vmbus_channel *primary_channel; + /* + * Support per-channel state for use by vmbus drivers. + */ + void *per_channel_state; }; static inline void set_channel_read_state(struct vmbus_channel *c, bool state) @@ -1050,6 +1054,16 @@ static inline void set_channel_read_state(struct vmbus_channel *c, bool state) c->batched_reading = state; } +static inline void set_per_channel_state(struct vmbus_channel *c, void *s) +{ + c->per_channel_state = s; +} + +static inline void *get_per_channel_state(struct vmbus_channel *c) +{ + return c->per_channel_state; +} + void vmbus_onmessage(void *context); int vmbus_request_offers(void); -- 1.7.4.1