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| author | Linux Build Service Account <lnxbuild@localhost> | 2019-08-20 14:48:42 -0700 |
|---|---|---|
| committer | Linux Build Service Account <lnxbuild@localhost> | 2019-08-20 14:48:42 -0700 |
| commit | a7e8a977f049e7dbf96dc58523c31c5731e1dfc5 (patch) | |
| tree | 5d017fab1762ef00cefb4284de5e74ef59320679 /include/linux | |
| parent | 04d749a9dbd5bd3d50c28d691f34c42954e769d4 (diff) | |
| parent | 2a61e30d4462de293371173af5c153e0ea195f0e (diff) | |
Merge 2a61e30d4462de293371173af5c153e0ea195f0e on remote branch
Change-Id: Ia7621e339841d10bbad7aba0fc2a8e096e00c314
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/vmw_vmci_defs.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/include/linux/vmw_vmci_defs.h b/include/linux/vmw_vmci_defs.h index 65ac54c61c18..7023432013e8 100644 --- a/include/linux/vmw_vmci_defs.h +++ b/include/linux/vmw_vmci_defs.h @@ -75,9 +75,18 @@ enum { /* * A single VMCI device has an upper limit of 128MB on the amount of - * memory that can be used for queue pairs. + * memory that can be used for queue pairs. Since each queue pair + * consists of at least two pages, the memory limit also dictates the + * number of queue pairs a guest can create. */ #define VMCI_MAX_GUEST_QP_MEMORY (128 * 1024 * 1024) +#define VMCI_MAX_GUEST_QP_COUNT (VMCI_MAX_GUEST_QP_MEMORY / PAGE_SIZE / 2) + +/* + * There can be at most PAGE_SIZE doorbells since there is one doorbell + * per byte in the doorbell bitmap page. + */ +#define VMCI_MAX_GUEST_DOORBELL_COUNT PAGE_SIZE /* * Queues with pre-mapped data pages must be small, so that we don't pin |