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| author | Zhu Yanjun <yanjun.zhu@oracle.com> | 2019-04-24 02:56:42 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-02 09:59:00 +0200 |
| commit | ed1866aa608a0020a1412ef6c6c589d6ea46a300 (patch) | |
| tree | d9a81cfd6827a43215fd16ed032d90bc7d76ef3d /net | |
| parent | 7da11d6a5d85ab3f4d28fa660d8c90566fdaa1e6 (diff) | |
| download | linux-rpi3-ed1866aa608a0020a1412ef6c6c589d6ea46a300.tar.gz linux-rpi3-ed1866aa608a0020a1412ef6c6c589d6ea46a300.tar.bz2 linux-rpi3-ed1866aa608a0020a1412ef6c6c589d6ea46a300.zip | |
net: rds: exchange of 8K and 1M pool
[ Upstream commit 4b9fc7146249a6e0e3175d0acc033fdcd2bfcb17 ]
Before the commit 490ea5967b0d ("RDS: IB: move FMR code to its own file"),
when the dirty_count is greater than 9/10 of max_items of 8K pool,
1M pool is used, Vice versa. After the commit 490ea5967b0d ("RDS: IB: move
FMR code to its own file"), the above is removed. When we make the
following tests.
Server:
rds-stress -r 1.1.1.16 -D 1M
Client:
rds-stress -r 1.1.1.14 -s 1.1.1.16 -D 1M
The following will appear.
"
connecting to 1.1.1.16:4000
negotiated options, tasks will start in 2 seconds
Starting up..header from 1.1.1.166:4001 to id 4001 bogus
..
tsks tx/s rx/s tx+rx K/s mbi K/s mbo K/s tx us/c rtt us
cpu %
1 0 0 0.00 0.00 0.00 0.00 0.00 -1.00
1 0 0 0.00 0.00 0.00 0.00 0.00 -1.00
1 0 0 0.00 0.00 0.00 0.00 0.00 -1.00
1 0 0 0.00 0.00 0.00 0.00 0.00 -1.00
1 0 0 0.00 0.00 0.00 0.00 0.00 -1.00
...
"
So this exchange between 8K and 1M pool is added back.
Fixes: commit 490ea5967b0d ("RDS: IB: move FMR code to its own file")
Signed-off-by: Zhu Yanjun <yanjun.zhu@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/rds/ib_fmr.c | 11 | ||||
| -rw-r--r-- | net/rds/ib_rdma.c | 3 |
2 files changed, 11 insertions, 3 deletions
diff --git a/net/rds/ib_fmr.c b/net/rds/ib_fmr.c index e0f70c4051b6..01e764f8f224 100644 --- a/net/rds/ib_fmr.c +++ b/net/rds/ib_fmr.c @@ -44,6 +44,17 @@ struct rds_ib_mr *rds_ib_alloc_fmr(struct rds_ib_device *rds_ibdev, int npages) else pool = rds_ibdev->mr_1m_pool; + if (atomic_read(&pool->dirty_count) >= pool->max_items / 10) + queue_delayed_work(rds_ib_mr_wq, &pool->flush_worker, 10); + + /* Switch pools if one of the pool is reaching upper limit */ + if (atomic_read(&pool->dirty_count) >= pool->max_items * 9 / 10) { + if (pool->pool_type == RDS_IB_MR_8K_POOL) + pool = rds_ibdev->mr_1m_pool; + else + pool = rds_ibdev->mr_8k_pool; + } + ibmr = rds_ib_try_reuse_ibmr(pool); if (ibmr) return ibmr; diff --git a/net/rds/ib_rdma.c b/net/rds/ib_rdma.c index 63c8d107adcf..d664e9ade74d 100644 --- a/net/rds/ib_rdma.c +++ b/net/rds/ib_rdma.c @@ -454,9 +454,6 @@ struct rds_ib_mr *rds_ib_try_reuse_ibmr(struct rds_ib_mr_pool *pool) struct rds_ib_mr *ibmr = NULL; int iter = 0; - if (atomic_read(&pool->dirty_count) >= pool->max_items_soft / 10) - queue_delayed_work(rds_ib_mr_wq, &pool->flush_worker, 10); - while (1) { ibmr = rds_ib_reuse_mr(pool); if (ibmr) |