From: tip-bot for Maya Nakamura <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: m.maya.nakamura@gmail.com, mikelley@microsoft.com,
linux-kernel@vger.kernel.org, tglx@linutronix.de, hpa@zytor.com,
sashal@kernel.org, vkuznets@redhat.com, mingo@kernel.org
Subject: [tip:x86/hyperv] drivers: hv: vmbus: Replace page definition with Hyper-V specific one
Date: Mon, 22 Jul 2019 02:11:36 -0700 [thread overview]
Message-ID: <tip-83527ef7abf7c02c33a90b00f0954db35415adbd@git.kernel.org> (raw)
In-Reply-To: <0d9e80ecabcc950dc279fdd2e39bea4060123ba4.1562916939.git.m.maya.nakamura@gmail.com>
Commit-ID: 83527ef7abf7c02c33a90b00f0954db35415adbd
Gitweb: https://git.kernel.org/tip/83527ef7abf7c02c33a90b00f0954db35415adbd
Author: Maya Nakamura <m.maya.nakamura@gmail.com>
AuthorDate: Fri, 12 Jul 2019 08:25:18 +0000
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitDate: Mon, 22 Jul 2019 11:06:45 +0200
drivers: hv: vmbus: Replace page definition with Hyper-V specific one
Replace PAGE_SIZE with HV_HYP_PAGE_SIZE because the guest page size may not
be 4096 on all architectures and Hyper-V always runs with a page size of
4096.
Signed-off-by: Maya Nakamura <m.maya.nakamura@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Acked-by: Sasha Levin <sashal@kernel.org>
Link: https://lkml.kernel.org/r/0d9e80ecabcc950dc279fdd2e39bea4060123ba4.1562916939.git.m.maya.nakamura@gmail.com
---
drivers/hv/hyperv_vmbus.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index 362e70e9d145..6bf64cb6e31a 100644
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -192,11 +192,11 @@ int hv_ringbuffer_read(struct vmbus_channel *channel,
u64 *requestid, bool raw);
/*
- * Maximum channels is determined by the size of the interrupt page
- * which is PAGE_SIZE. 1/2 of PAGE_SIZE is for send endpoint interrupt
- * and the other is receive endpoint interrupt
+ * The Maximum number of channels (16348) is determined by the size of the
+ * interrupt page, which is HV_HYP_PAGE_SIZE. 1/2 of HV_HYP_PAGE_SIZE is to
+ * send endpoint interrupts, and the other is to receive endpoint interrupts.
*/
-#define MAX_NUM_CHANNELS ((PAGE_SIZE >> 1) << 3) /* 16348 channels */
+#define MAX_NUM_CHANNELS ((HV_HYP_PAGE_SIZE >> 1) << 3)
/* The value here must be in multiple of 32 */
/* TODO: Need to make this configurable */
next prev parent reply other threads:[~2019-07-22 9:11 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-12 8:11 [PATCH v4 0/5] hv: Remove dependencies on guest page size Maya Nakamura
2019-07-12 8:14 ` [PATCH v4 1/5] x86: hv: hyperv-tlfs.h: Create and use Hyper-V page definitions Maya Nakamura
2019-07-22 9:10 ` [tip:x86/hyperv] x86/hyperv: " tip-bot for Maya Nakamura
2019-07-12 8:21 ` [PATCH v4 2/5] x86: hv: Add functions to allocate/deallocate page for Hyper-V Maya Nakamura
2019-07-22 9:10 ` [tip:x86/hyperv] x86/hyperv: " tip-bot for Maya Nakamura
2019-07-12 8:25 ` [PATCH v4 3/5] hv: vmbus: Replace page definition with Hyper-V specific one Maya Nakamura
2019-07-18 2:22 ` Sasha Levin
2019-07-22 9:08 ` Thomas Gleixner
2019-07-22 9:11 ` tip-bot for Maya Nakamura [this message]
2019-07-12 8:27 ` [PATCH v4 4/5] HID: hv: Remove dependencies on PAGE_SIZE for ring buffer Maya Nakamura
[not found] ` <DM5PR21MB013708BF1876B7282C049B76D7BC0@DM5PR21MB0137.namprd21.prod.outlook.com>
2019-09-02 11:30 ` Jiri Kosina
2019-09-03 0:26 ` Sasha Levin
2019-07-12 8:30 ` [PATCH v4 5/5] Input: " Maya Nakamura
2019-07-14 23:28 ` Dmitry Torokhov
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