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From: Tom Talpey <tom@talpey.com>
To: smfrench@gmail.com, linux-cifs@vger.kernel.org
Cc: linkinjeon@kernel.org, senozhatsky@chromium.org,
bmt@zurich.ibm.com, Tom Talpey <tom@talpey.com>
Subject: [PATCH 2/6] Decrease the number of SMB3 smbdirect server SGEs
Date: Tue, 13 Sep 2022 22:19:33 +0000
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|
| Series |
Reduce SMBDirect RDMA SGE counts and sizes
|
expand
|
diff --git a/fs/ksmbd/transport_rdma.c b/fs/ksmbd/transport_rdma.c index 35b55ee94fe5..494b8e5af4b3 100644 --- a/fs/ksmbd/transport_rdma.c +++ b/fs/ksmbd/transport_rdma.c @@ -32,7 +32,7 @@ /* SMB_DIRECT negotiation timeout in seconds */ #define SMB_DIRECT_NEGOTIATE_TIMEOUT 120 -#define SMB_DIRECT_MAX_SEND_SGES 8 +#define SMB_DIRECT_MAX_SEND_SGES 6 #define SMB_DIRECT_MAX_RECV_SGES 1 /*
The server-side SMBDirect layer requires no more than 6 send SGEs The previous default of 8 causes ksmbd to fail on the SoftiWARP (siw) provider, and possibly others. Additionally, large numbers of SGEs reduces performance significantly on adapter implementations. Signed-off-by: Tom Talpey <tom@talpey.com> --- fs/ksmbd/transport_rdma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)