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From: Stefano Stabellini <sstabellini@kernel.org>
To: groug@kaod.org
Cc: sstabellini@kernel.org, paul@xen.org, qemu_oss@crudebyte.com,
	qemu-devel@nongnu.org, anthony.perard@citrix.com,
	Stefano Stabellini <stefano.stabellini@xilinx.com>
Subject: [PATCH v2 3/3] xen/9pfs: increase max ring order to 9
Date: Thu, 21 May 2020 12:26:27 -0700	[thread overview]
Message-ID: <20200521192627.15259-3-sstabellini@kernel.org> (raw)
In-Reply-To: <alpine.DEB.2.21.2005211225030.27502@sstabellini-ThinkPad-T480s>

From: Stefano Stabellini <stefano.stabellini@xilinx.com>

The max order allowed by the protocol is 9. Increase the max order
supported by QEMU to 9 to increase performance.

Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com>
---
Changes in v2:
- patch added
---
 hw/9pfs/xen-9p-backend.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/9pfs/xen-9p-backend.c b/hw/9pfs/xen-9p-backend.c
index 3c84c86ab8..a969fcc54c 100644
--- a/hw/9pfs/xen-9p-backend.c
+++ b/hw/9pfs/xen-9p-backend.c
@@ -21,7 +21,7 @@
 
 #define VERSIONS "1"
 #define MAX_RINGS 8
-#define MAX_RING_ORDER 8
+#define MAX_RING_ORDER 9
 
 typedef struct Xen9pfsRing {
     struct Xen9pfsDev *priv;
-- 
2.17.1



  parent reply	other threads:[~2020-05-21 19:39 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-21 19:26 [PATCH v2 0/3] revert 9pfs reply truncation, wait for free room to reply Stefano Stabellini
2020-05-21 19:26 ` [PATCH v2 1/3] Revert "9p: init_in_iov_from_pdu can truncate the size" Stefano Stabellini
2020-05-22 12:34   ` Christian Schoenebeck
2020-05-21 19:26 ` [PATCH v2 2/3] xen/9pfs: yield when there isn't enough room on the ring Stefano Stabellini
2020-05-21 19:26 ` Stefano Stabellini [this message]
2020-05-22 12:35   ` [PATCH v2 3/3] xen/9pfs: increase max ring order to 9 Christian Schoenebeck
2020-05-25 13:48 ` [PATCH v2 0/3] revert 9pfs reply truncation, wait for free room to reply Greg Kurz

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