Commit Graph

4684 Commits

Author SHA1 Message Date
Guy Levi
9901abf583 IB/mlx4: Use optimal numbers of MTT entries
Optimize the device performance by assigning multiple physical pages,
which are contiguous, to a single MTT. As a result, the number of MTTs
is reduced and in turn save cache misses of MTTs.

Signed-off-by: Guy Levi <guyle@mellanox.com>
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-11-13 14:42:04 -05:00
Majd Dibbiny
2b621851ac IB/mlx5: Fix RoCE Address Path fields
When working over a RoCE network, the UDP source port should be set only
for statically connected QPs (RC, UC and XRC).

Fixes: 2811ba51b0 ("IB/mlx5: Add RoCE fields to Address Vector")
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-11-13 13:53:22 -05:00
Majd Dibbiny
31fde034a8 IB/mlx5: Assign send CQ and recv CQ of UMR QP
The UMR's QP is created by calling mlx5_ib_create_qp directly, and
therefore the send CQ and the recv CQ on the ibqp weren't assigned.

Assign them right after calling the mlx5_ib_create_qp to assure
that any access to those pointers will work as expected and won't
crash the system as might happen as part of reset flow.

Fixes: e126ba97db ("mlx5: Add driver for Mellanox Connect-IB adapters")
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-11-13 13:53:22 -05:00
Leon Romanovsky
9950acf945 RDMA/cxgb4: Protect from possible dereference
Smatch tool reports the following error:
  drivers/infiniband/hw/cxgb4/qp.c:1886
	c4iw_create_qp() error: we previously assumed 'ucontext'
	could be null (see line 1804)

Cc: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-11-13 13:53:22 -05:00
Leon Romanovsky
e32d2d7144 RDMA/bnxt_re: Remove unused vlan_tag variable
The Broadcom driver produces the following compilation warning

drivers/infiniband/hw/bnxt_re/ib_verbs.c:
	In function ‘bnxt_re_create_ah’:
drivers/infiniband/hw/bnxt_re/ib_verbs.c:668:6:
	warning: variable ‘vlan_tag’ set but not used [-Wunused-but-set-variable]
	u16 vlan_tag;

Let's remove it till vlan_tag will be implemented properly.

Cc: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-11-13 13:53:22 -05:00
Noa Osherovich
b1383aa641 IB/mlx5: Add PCI write end padding support
Add the PCI write end padding flag to device_cap_flags enum and set it
during mlx5_ib_query_device so it will be reported to user-space.

During WQ/QP creation, set that capability for WQ/QP if user requested
it and HW supports it.

PCI write end padding modification is not supported for now. There's no
such flag for a QP but for a WQ, create and modify use the same flag.
Return an error if PCI write end padding flag is set during modify_wq.

Signed-off-by: Noa Osherovich <noaos@mellanox.com>
Reviewed-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-11-10 13:50:27 -05:00
Leon Romanovsky
7d7d065a5e RDMA/cxgb4: Annotate r2 and stag as __be32
Chelsio cxgb4 HW is big-endian, hence there is need to properly
annotate r2 and stag fields as __be32 and not __u32 to fix the
following sparse warnings.

  drivers/infiniband/hw/cxgb4/qp.c:614:16:
    warning: incorrect type in assignment (different base types)
      expected unsigned int [unsigned] [usertype] r2
      got restricted __be32 [usertype] <noident>
  drivers/infiniband/hw/cxgb4/qp.c:615:18:
    warning: incorrect type in assignment (different base types)
      expected unsigned int [unsigned] [usertype] stag
      got restricted __be32 [usertype] <noident>

Cc: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-11-10 13:04:09 -05:00
Guy Levi
108809a057 IB/mlx4: Fix RSS's QPC attributes assignments
In the modify QP handler the base_qpn_udp field in the RSS QPC is
overwrite later by irrelevant value assignment. Hence, ingress packets
which gets to the RSS QP will be steered then to a garbage QPN.

The patch fixes this by skipping the above assignment when a RSS QP is
modified, also, the RSS context's attributes assignments are relocated
just before the context is posted to avoid future issues like this.

Additionally, this patch takes the opportunity to change the code to be
disciplined to the device's manual and assigns the RSS QP context just at
RESET to INIT transition.

Fixes:3078f5f1bd8b ("IB/mlx4: Add support for RSS QP")
Signed-off-by: Guy Levi <guyle@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-11-10 13:04:09 -05:00
Guy Levi
09d208b258 IB/mlx4: Add report for RSS capabilities by vendor channel
The mlx4's RSS patches submission missed a report of RSS capabilities
which should be reported by the vendor channel in query_device.

Signed-off-by: Guy Levi <guyle@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-11-10 13:04:09 -05:00
oulijun
26beb85f41 RDMA/hns: Modify the usage of cmd_sn in hip08
The cmd_sn field of CQ doorbell inits for 0. It should be
increment on each first db rung after a completion Event.
if the cmd_sn of notify doorbell Adjacent two times is the
same, the hardware will distinguish it for the same notify
request and update its type according to the priority level
of next event and solicited event.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-11-10 12:32:43 -05:00
oulijun
0203b14c4f RDMA/hns: Unify the calculation for hem index in hip08
The calculation of hem index are different between hns_roce_table_get
and hns_roce_table_find. When the table chunk size of TRRL is not
divisible by object size, it will faile to find the trrl table.

This patch is to update the calculation of the hem index in the
hns_roce_table_find to the same as which in the hns_roce_table_get.

Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-11-10 12:32:18 -05:00
oulijun
e8d1853357 RDMA/hns: Set the owner field of SQWQE in hip08 RoCE
the owner need to be set when posting sqwqe in hip08 RoCE.
The owner be used according to the below algorithm:
The value of owner should be 1 in the first lap, it
should be 0 in the second lap and in turn.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-11-10 12:32:02 -05:00
oulijun
b5fddb7ce7 RDMA/hns: Add sq_invld_flg field in QP context
In hip08 RoCE, it need to add the sq_invld_flg field
in QP context for RoCE hardware.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-11-10 12:31:52 -05:00
oulijun
2872646134 RDMA/hns: Update the usage of ack timeout in hip08
The ack timeout's value in qp context shall be a 5-bit value
and be assgined by users. When at of qpc is set zero, the
timer is disabled.

When attr_mask set for IB_QP_TIMEOUT, The ack timeout field
is effective.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-11-10 12:31:34 -05:00
oulijun
befb63b43d RDMA/hns: Set sq_cur_sge_blk_addr field in QPC in hip08
If the extend sges exist, the sq_cur_sge_blk_addr field in QPC
(qp context) should be configured.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-11-10 12:31:25 -05:00
oulijun
a49d761fc1 RDMA/hns: Enable the cqe field of sqwqe of RC
When sig_type of qpc is non-selectable, all sq's wqes will produce
cqe and not depend on the cqe attribute of wqe. When sig_type of
qpc is selectable, The cqe attribute of wqe will decide whether to
produce the cqe.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-11-10 12:30:45 -05:00
oulijun
492b2bd026 RDMA/hns: Set se attribute of sqwqe in hip08
When send flags is IB_SEND_SOLICITED, the se(solicated event)
field of sqwqe will be set.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-11-10 12:30:35 -05:00
oulijun
651487c229 RDMA/hns: Configure fence attribute in hip08 RoCE
When post wr for mixed rdma operation, we need to use fence
mechanism to keep the correct execute order.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-11-10 12:30:10 -05:00
oulijun
e92f2c182b RDMA/hns: Configure TRRL field in hip08 RoCE device
The TRRL(Target RDMA Read/aTOMIC List) record the information
of receiving RDMA READ or ATOMIC operation in hip08. It will
be used the hardware. The driver need to assign a continuous
physical address for trrl_ba field of qp context.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-11-10 12:29:47 -05:00
oulijun
d551424617 RDMA/hns: Update calculation of irrl_ba field for hip08
The irrl(initiator RDMA Read/Atomic list) base address of qp
context is assigned for addr[63:6]. This patch mainly fixed
it.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-11-10 12:15:11 -05:00
Wei Hu(Xavier)
b5ff0f610b RDMA/hns: Configure sgid type for hip08 RoCE
The hardware vendors need to generate RoCEv1 or RoCEv2
packet according to the sgid type configured.

Besides, update the gid table size for hip08 RoCE
device.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-11-10 12:14:27 -05:00
Wei Hu(Xavier)
023c1477b0 RDMA/hns: Generate gid type of RoCEv2
HNS_ROCE_CAP_FALG_ROCE_V1_V2 is added for selecting capability of
RoCE in hns driver. When HNS_ROCE_CAP_FALG_ROCE_V1_V2 is set,
driver will inform ib core that the related hns device can support
RoCEv2, and ib core can generate the gid of the related type.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-11-10 12:14:27 -05:00
Wei Hu(Xavier)
a2c80b7b41 RDMA/hns: Add rereg mr support for hip08
This patch adds rereg mr support for hip08.

Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-11-10 12:14:27 -05:00
Mike Marciniszyn
31acd18b61 IB/hfi1: Take advantage of kvzalloc_node in sdma initialization
The code that allocates the tx ring in the sdma code fails to take
advantage of kvzalloc variations.

Fix by converting to use kvzalloc_node.

Reported-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-30 14:51:36 -04:00
Kamenee Arumugam
45a041cce7 IB/hfi1: Don't modify num_user_contexts module parameter
The driver parameter num_user_contexts controls global behavior and
should not be modified by the driver.
This patch eliminates modification of num_user_contexts by using a
local variable to keep track of the value.

Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Kamenee Arumugam <kamenee.arumugam@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-30 14:51:36 -04:00
Mike Marciniszyn
2d9544aacf IB/hfi1: Insure int mask for in-kernel receive contexts is clear
The only use for the urg interrupt is for priority PSM packets.

There is no reason for this interrupt to be enabled for kernel
contexts.

Reviewed-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-30 14:51:36 -04:00
Mike Marciniszyn
1b311f8931 IB/hfi1: Add tx_opcode_stats like the opcode_stats
This patch adds tx_opcode_stats to parallel the
(rx)opcode_stats in the debugfs.

Reviewed-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-30 14:51:36 -04:00
Sebastian Sanchez
406310c66d IB/hfi1: Validate PKEY for incoming GSI MAD packets
These are the use-cases where the pkey needs to be tested to see
if a packet needs to be dropped.

a) Check if pkey is not FULL_MGMT_P_KEY or LIM_MGMT_P_KEY,
   drop the packet as it's not part of the management partition.
   Self-originated packets are an exception.

b) If pkey index points to FULL_MGMT_P_KEY and LIM_MGMT_P_KEY is
   in the table, the packet is coming from a management node,
   and the receiving node is also a management node, so it is safe
   for the packet to go through.

c) If pkey index points to FULL_MGMT_P_KEY and LIM_MGMT_P_KEY is
   NOT in the table, drop the packet as LIM_MGMT_P_KEY should
   always be in the pkey table. It could be a misconfiguration.

d) If pkey index points to LIM_MGMT_P_KEY and FULL_MGMT_P_KEY is
   NOT in the table, it is safe for the packet to go through
   since a non-management node is talking to another non-managment
   node.

e) If pkey index points to LIM_MGMT_P_KEY and FULL_MGMT_P_KEY is in
   the table, drop the packet because a non-management node is
   talking to a management node, and it could be an attack.

For the implementation, these rules can be simplied to only checking
for (a) and (e). There's no need to check for rule (b) as
the packet doesn't need to be dropped. Rule (c) is not possible in
the driver as LIM_MGMT_P_KEY is always in the pkey table.

Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-30 14:51:36 -04:00
Patel Jay P
00f9203119 Ib/hfi1: Return actual operational VLs in port info query
__subn_get_opa_portinfo stores value returned by hfi1_get_ib_cfg() as
operational vls. hfi1_get_ib_cfg() returns vls_operational field in
hfi1_pportdata. The problem with this is that the value is always equal
to vls_supported field in hfi1_pportdata.

The logic to calculate operational_vls is to set value passed by FM
(in  __subn_set_opa_portinfo routine). If no value is passed then
default value is stored in operational_vls.

Field actual_vls_operational is calculated on the basis of buffer
control table. Hence, modifying hfi1_get_ib_cfg() to return
actual_operational_vls when used with HFI1_IB_CFG_OP_VLS parameter

Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Patel Jay P <jay.p.patel@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-30 14:51:36 -04:00
Michael J. Ruhl
4061f3a4da IB/hfi1: Race condition between user notification and driver state
The handler for link init state (HLS_UP_INIT) notifies userspace
(update_statusp()) before enabling the device
(RCV_CTRL_RCV_PORT_ENABLE_SMASK) or setting the device state
(ppd->host_link_state).  This causes a race condition where the
userspace thinks the interface is in the INIT state before the driver
has set that state.

Rework the code path to eliminate the race.

Delay setting the init state until after a HW settling period.

Reviewed-by: Sebastian Sanchez <sebastian.sanchez@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-30 14:51:36 -04:00
Somnath Kotur
5455e73a76 bnxt_re: Implement the shutdown hook of the L2-RoCE driver interface
When host is shutting down, it invokes the shutdown hook of the
L2 driver where it would attempt to free the MSI-X vectors, but would fail
because some vectors are held by the RoCE driver.
Implement the new hook in the L2 -> RoCE interface which will be invoked so that
the RoCE driver can unregister the device and free up the MSI-X vectors it had
claimed so that L2 can proceed with it's shutdown without failure.

Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-25 15:25:08 -04:00
Leon Romanovsky
35fb2a88ed RDMA/cxgb4: Declare stag as __be32
The scqe.stag is actually __b32, fix it.

  drivers/infiniband/hw/cxgb4/cq.c:754:52: warning: cast to restricted __be32

Cc: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-25 15:25:00 -04:00
Maor Gottlieb
309fa3470f IB/mlx5: Add support for RSS on the inner packet
Some user space application would like to do RSS on the inner
packet fields instead on the outer.
When MLX5_RX_HASH_INNER is set with one or more of the other
hash fields, then the RSS will be done using the inner packet.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-25 14:19:32 -04:00
Maor Gottlieb
f95ef6cbae IB/mlx5: Add tunneling offloads support
The device can support receive Stateless Offloads for the inner
packet's fields only when the packet is processed by TIR which is
enabled to support tunneling. Otherwise, the device treats the
packet as an ordinary non-tunneling packet and receive offloads
can be done only for the outer packet's field.
In order to enable receive Stateless Offloading support for incoming
tunneling traffic the TIR should be created with tunneled_offload_en.
Tunneling offloads is supported only be raw ethernet QP.

This patch includes:
* New QP creation flag for tunneling offloads.
* Reports device capabilities.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-25 14:19:31 -04:00
Guy Levi
7a0c8f4244 IB/mlx5: Support padded 128B CQE feature
In some benchmarks and some CPU architectures, writing the CQE on a full
cache line size improves performance by saving memory access operations
(read-modify-write) relative to partial cache line change. This patch
lets the user to configure the device to pad the CQE up to 128B in case
its content is less than 128B. Currently the driver supports only padding
for a CQE size of 128B.

Signed-off-by: Guy Levi <guyle@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-25 14:17:06 -04:00
Guy Levi
de57f2ad06 IB/mlx5: Support 128B CQE compression feature
In commit 1cbe6fc86c ("IB/mlx5: Add support for CQE compressing") the
concept of CQE compression was introduced and added a support for 64B
CQE size. This change update the code to support 128B CQE size as well.

Signed-off-by: Guy Levi <guyle@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-25 14:17:06 -04:00
Noa Osherovich
ccc8708790 IB/mlx5: Allow creation of a multi-packet RQ
Allow creation of a multi-packet receive queue.

In order to create a multi-packet RQ, the following fields in
the mlx5_ib_rwq should be set:
- log_num_strides: Log of number of strides per WQE
- single_stride_log_num_of_bytes: Log of a single stride size
- two_byte_shift_en: When enabled, hardware pads 2 bytes of zeros
  before writing the message to memory (e.g. for the IP alignment).

Signed-off-by: Noa Osherovich <noaos@mellanox.com>
Reviewed-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-25 14:03:44 -04:00
Noa Osherovich
b4f34597a5 IB/mlx5: Expose multi-packet RQ capabilities
This patch reports the device's striding RQ capabilities to
the user-space:
- min/max_single_stride_log_num_of_bytes: Log of min/max number of
  bytes in a single stride.
- min/max_single_wqe_log_num_of_strides: Log of min/max number of
  strides in a single WQE.
- supported_qpts: A bit mask to know which QP types support multi-
  packet RQ, for now only Raw Packet QPs.

Signed-off-by: Noa Osherovich <noaos@mellanox.com>
Reviewed-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-25 14:03:44 -04:00
oulijun
b156269d88 RDMA/hns: Add modify CQ support for hip08
It is needed to call modify cq API for modifying cq
context fields for controlling event generation
moderations. This patch mainly adds it.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-25 13:37:07 -04:00
Wei Hu(Xavier)
3180236cce RDMA/hns: Update the PD&CQE&MTT specification in hip08
This patch updates the PD specification to 16M for hip08. And it
updates the numbers of mtt and cqe segments for the buddy.

As the CQE supports hop num 1 addressing, the CQE specification is
64k. This patch updates to set the CQE specification to 64k.

Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-25 13:37:07 -04:00
Wei Hu(Xavier)
29a1fe5d70 RDMA/hns: Update the IRRL table chunk size in hip08
As the increase of the IRRL specification in hip08, the IRRL table
chunk size needs to be updated.
This patch updates the IRRL table chunk size to 256k for hip08.

Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-25 13:37:07 -04:00
Wei Hu(Xavier)
9a8982dc89 RDMA/hns: Support WQE/CQE/PBL page size configurable feature in hip08
This patch updates to support WQE, CQE and PBL page size configurable
feature, which includes base address page size and buffer page size.

Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-25 13:37:07 -04:00
Bob Sharp
d2782739c1 i40iw: Move cqp_cmd_head init to CQP initialization
Control QP (CQP) command backlog list is initialized at
device initialization time.  It is not reinitialized in
the reset flow.  Move the initialization to CQP creation
time so the list can be initialized correctly for reset as well.

Fixes: 86dbcd0f12 ("i40iw: add file to handle cqp calls")
Signed-off-by: Bob Sharp <Robert.O.Sharp@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-18 13:28:46 -04:00
Ivan Barrera
f535b56c39 i40iw: Remove UDA QP from QoS list if creation fails
If User-space Direct Access (UDA) QP creation fails,
the QP entry is not removed from QoS list. Fix this
by removing QP from QoS list if create QP fails.

Fixes: 0fc2dc5889 ("i40iw: Add Quality of Service support")
Signed-off-by: Ivan Barrera <ivan.d.barrera@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-18 13:28:46 -04:00
Christopher Bednarz
56b2f52310 i40iw: Clear CQP Head/Tail during initialization
Clear Control Queue Pair (CQP) Head/Tail on CQP
initialization as during an adapter reset, these
values are not reinitialized. Tail is cleared by
writing 0 to CQP's tail register. Head is cleared
by writing 0 to CQP's doorbell register.

Fixes: 86dbcd0f12 ("i40iw: add file to handle cqp calls")
Signed-off-by: Christopher Bednarz <christopher.n.bednarz@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-18 13:28:46 -04:00
Shiraz Saleem
1196923838 i40iw: Refactor queue depth calculation
Queue depth calculations use a mix of work requests
and actual number of bytes. Consolidate all calculations
using minimum WQE size to avoid confusion.

Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-18 13:28:46 -04:00
Shiraz Saleem
5b4a1a8b87 i40iw: Reinitialize IEQ on MTU change
On a netdev MTU change event, the iWARP
Exception Queue (IEQ) buffers may not be
sized properly to handle the new MTU.

Reinitialize the IEQ with new MTU size on MTU
change event.

Also, add define for the max ethernet frame size
field in IEQ QP context instead of the snd_mss
define which is for iWARP QPs' MSS field.

Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-18 13:28:46 -04:00
Shiraz Saleem
9381699eed i40iw: Move ceq_valid to i40iw_sc_dev structure
Completion Event Queues are created and destroyed on
a per device basis as opposed to per User-space Direct
Access resource.

Move ceq_valid to the correct place in i40iw_sc_dev
from i40iw_puda_rsrc.

Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-18 13:28:46 -04:00
Shiraz Saleem
343d86bd45 i40iw: Account for IPv6 header when setting MSS
The IPv6 header size is not subtracted from MTU when MSS is
set for QPs.

Save MTU opposed to MSS in the vsi struct during
initialization and calculate the MSS based on IPv4 vs
IPv6 connection.

Fixes: f27b4746f3 ("i40iw: add connection management code")
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-18 13:28:46 -04:00
Mustafa Ismail
b0d4f70369 i40iw: Remove unused structures
Some structures for post SQ operation are not used.
Remove the following:

i40iw_post_send_w_inv
i40iw_post_inline_send_w_inv
send_w_sol
send_w_inv
send_w_sol_inv
inline_send_w_sol
inline_send_w_inv
inline_send_w_sol_inv

Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-18 13:28:46 -04:00