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authorLinus Torvalds <torvalds@linux-foundation.org>2019-09-17 05:39:00 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2019-09-17 05:39:00 +0300
commite2bddc20b562ee23046ad541cf29314e4aebd934 (patch)
tree608da9a4721ec3b9b19f342f580793de6babef4e /drivers/hv
parent6f24671485d0d0eaeaccd910fa8148db72aac089 (diff)
parent83527ef7abf7c02c33a90b00f0954db35415adbd (diff)
downloadlinux-e2bddc20b562ee23046ad541cf29314e4aebd934.tar.xz
Merge branch 'x86-hyperv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 hyperv updates from Ingo Molnar: "Misc updates related to page size abstractions within the HyperV code, in preparation for future features" * 'x86-hyperv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: drivers: hv: vmbus: Replace page definition with Hyper-V specific one x86/hyperv: Add functions to allocate/deallocate page for Hyper-V x86/hyperv: Create and use Hyper-V page definitions
Diffstat (limited to 'drivers/hv')
-rw-r--r--drivers/hv/hyperv_vmbus.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index fb16a622e8ab..50eaa1fd6e45 100644
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -190,11 +190,11 @@ 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 */