Do we need it for vz9 as well? -- Best regards,
Konstantin Khorenko, Virtuozzo Linux Kernel Team On 17.08.2023 17:45, Kui Liu wrote:
In RoCE network, packet loss and dealy due to congestion can happen quite often. We need to tolerate such event. So increase retry_count and rnr_retry_count to 7 to allow NIC to retry operations when an error happens, instead of returning the error directly which causes the connection to be aborted. Signed-off-by: Liu Kui <kui....@acronis.com> --- fs/fuse/kio/pcs/pcs_rdma_conn.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/fuse/kio/pcs/pcs_rdma_conn.c b/fs/fuse/kio/pcs/pcs_rdma_conn.c index 4db903151de0..7339b1466d3a 100644 --- a/fs/fuse/kio/pcs/pcs_rdma_conn.c +++ b/fs/fuse/kio/pcs/pcs_rdma_conn.c @@ -44,8 +44,8 @@ conn_param_init(struct rdma_conn_param *cp, struct pcs_rdmaio_conn_req *cr, cp->initiator_depth = min_t(int, U8_MAX, cmid->device->attrs.max_qp_init_rd_atom); cp->flow_control = 1; /* does not matter */ - cp->retry_count = 0; /* # retransmissions when no ACK received */ - cp->rnr_retry_count = 0; /* # RNR retransmissions */ + cp->retry_count = 7; /* # retransmissions when no ACK received */ + cp->rnr_retry_count = 7; /* # RNR retransmissions */ } static int pcs_rdma_cm_event_handler(struct rdma_cm_id *cmid, -- 2.32.0 (Apple Git-132)
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