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drivers: hv: vmbus: Replace page definition with Hyper-V specific one

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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 <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Michael Kelley <[email protected]>
Reviewed-by: Vitaly Kuznetsov <[email protected]>
Acked-by: Sasha Levin <[email protected]>
Link: https://lkml.kernel.org/r/0d9e80ecabcc950dc279fdd2e39bea4060123ba4.1562916939.git.m.maya.nakamura@gmail.com
This commit is contained in:
Maya Nakamura 2019-07-12 08:25:18 +00:00 • committed by Thomas Gleixner
commit 83527ef7ab
1 changed files with 4 additions and 4 deletions
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8
drivers/hv/hyperv_vmbus.h
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@ -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 */