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[01/18] lnet: restore an maximal fragments count

Message ID 1593648298-10571-2-git-send-email-jsimmons@infradead.org (mailing list archive)
State New, archived
Headers show
Series Port of OpenSFS landing as of July 1, 2020 | expand

Commit Message

James Simmons July 2, 2020, 12:04 a.m. UTC 
From: Alexey Lyashkov <c17817@cray.com>

Lowering a number of fragments blocks a connection from older clients
who wants to use 256 fragments to transfer. Let's restore this number
to the original value.

Fixes: ab7e089b8eda ("lustre: lnet: make LNET_MAX_IOV dependent on page size")

Cray-bug-id: LUS-8139
WC-bug-id: https://jira.whamcloud.com/browse/LU-10157
Lustre-commit: 4072d863c240f ("LU-10157 lnet: restore an maximal fragments count")
Signed-off-by: Alexey Lyashkov <c17817@cray.com>
Reviewed-on: https://review.whamcloud.com/37385
Reviewed-by: Serguei Smirnov <ssmirnov@whamcloud.com>
Reviewed-by: Shaun Tancheff <shaun.tancheff@hpe.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
---
 include/linux/lnet/lib-types.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/include/linux/lnet/lib-types.h b/include/linux/lnet/lib-types.h
index 6aa691e..1c016fd 100644
--- a/include/linux/lnet/lib-types.h
+++ b/include/linux/lnet/lib-types.h
@@ -51,7 +51,7 @@ 
 /* Max payload size */
 #define LNET_MAX_PAYLOAD	LNET_MTU
 
-#define LNET_MAX_IOV		(LNET_MAX_PAYLOAD >> PAGE_SHIFT)
+#define LNET_MAX_IOV		256
 
 /*
  * This is the maximum health value.