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a25ce4270b
linux/include/rdma
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Kaike Wan a25ce4270b IB/rdmavt: Setting of QP timeout can overflow jiffies computation 
Current computation of qp->timeout_jiffies in rvt_modify_qp() will cause
overflow due to the fact that the input to the function usecs_to_jiffies
is only 32-bit ( unsigned int). Overflow will occur when attr->timeout is
equal to or greater than 30. The consequence is unnecessarily excessive
retry and thus degradation of the system performance.

This patch fixes the problem by limiting the input to 5-bit and calling
usecs_to_jiffies() before multiplying the scaling factor.

Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-07-20 11:20:50 -04:00
..
ib_addr.h net-next: treewide use is_vlan_dev() helper function. 2017-02-06 16:33:29 -05:00
ib_cache.h RDMA/core: export ib_get_cached_port_state 2017-01-12 23:00:00 -05:00
ib_cm.h IB/SA: Rename ib_sa_path_rec to sa_path_rec 2017-05-01 14:37:28 -04:00
ib_fmr_pool.h
ib_hdrs.h IB/hfi1: Use defines from common headers 2017-04-28 13:48:01 -04:00
ib_mad.h IB/core: Enforce security on management datagrams 2017-05-23 12:27:21 -04:00
ib_marshall.h IB/SA: Rename ib_sa_path_rec to sa_path_rec 2017-05-01 14:37:28 -04:00
ib_pack.h IB/hfi1: Add transmit fault injection feature 2017-04-05 14:45:09 -04:00
ib_pma.h IB/core: Display extended counter set if available 2015-12-23 15:58:30 -05:00
ib_sa.h RDMA/SA: Fix kernel panic in CMA request handler flow 2017-06-01 17:20:14 -04:00
ib_smi.h IB/core: Move SM class defines from ib_mad.h to ib_smi.h 2015-09-03 15:50:32 -04:00
ib_umem_odp.h IB/umem: Add support to huge ODP 2017-04-25 15:40:28 -04:00
ib_umem.h IB/umem: Add contiguous ODP support 2017-04-25 15:40:28 -04:00
ib_verbs.h IB/core: Remove NOIO QP create flag 2017-07-17 21:21:24 -04:00
ib.h new helper: uaccess_kernel() 2017-03-28 16:43:25 -04:00
iw_cm.h rdma_cm: add rdma_reject_msg() helper function 2016-12-14 11:38:28 -05:00
iw_portmap.h RDMA/core: Enable the iWarp Port Mapper to provide the actual address of the connecting peer to its clients 2015-05-05 09:18:01 -04:00
mr_pool.h IB/core: add a simple MR pool 2016-05-13 13:37:18 -04:00
opa_addr.h IB/SA: Add OPA addr header 2017-05-01 16:35:59 -04:00
opa_port_info.h IB/hfi1: Virtual Network Interface Controller (VNIC) HW support 2017-04-20 15:19:35 -04:00
opa_smi.h IB/mad: Eliminate redundant SM class version defines for OPA 2016-12-14 11:01:58 -05:00
opa_vnic.h IB/opa-vnic: Virtual Network Interface Controller (VNIC) interface 2017-04-20 12:01:38 -04:00
rdma_cm_ib.h IB/SA: Rename ib_sa_path_rec to sa_path_rec 2017-05-01 14:37:28 -04:00
rdma_cm.h IB/SA: Rename ib_sa_path_rec to sa_path_rec 2017-05-01 14:37:28 -04:00
rdma_netlink.h RDMA/netlink: Reduce exposure of RDMA netlink functions 2017-06-01 17:20:11 -04:00
rdma_vt.h IB/{rdmavt, qib, hfi1}: Remove gfp flags argument 2017-07-17 21:21:23 -04:00
rdmavt_cq.h IB/rdmavt: Add completion queue functions 2016-03-10 20:37:24 -05:00
rdmavt_mr.h IB/hfi1, rdmavt: Move SGE state helper routines into rdmavt 2017-02-19 09:18:41 -05:00
rdmavt_qp.h IB/rdmavt: Setting of QP timeout can overflow jiffies computation 2017-07-20 11:20:50 -04:00
rw.h IB/core: add RW API support for signature MRs 2016-05-13 13:37:20 -04:00
uverbs_std_types.h IB/core: Change completion channel to use the reworked objects schema 2017-04-05 13:28:04 -04:00
uverbs_types.h IB/core: Rename write flag to exclusive in rdma_core 2017-04-20 11:44:07 -04:00