In old code, It only added the interface for querying non-specific
QP. This patch mainly adds an interface for querying QP1.
Signed-off-by: NLijun Ou <oulijun@huawei.com>
Reviewed-by: NWei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: NSalil Mehta  <salil.mehta@huawei.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

This patch removes the redundant code lines present in the
functions get_send_wqe() and get_recv_wqe(). This also fixes
the error in calculating the SQ WQE.
Signed-off-by: NLijun Ou <oulijun@huawei.com>
Reviewed-by: NWei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

It doesn't need to assign for the filed of qp state in qpc separately
when qp happen to migrate state which supported in RoCE engine v1.
Signed-off-by: NLijun Ou <oulijun@huawei.com>
Reviewed-by: NWei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

The rq head in qpc was zero will miss the rq wqes which
have be sent, so here we should take the real value.
Signed-off-by: NLijun Ou <oulijun@huawei.com>
Reviewed-by: NWei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Some items of qpc need to take user param when modified qp
state.
Signed-off-by: NLijun Ou <oulijun@huawei.com>
Signed-off-by: NDongdong Huang(Donald) <hdd.huang@huawei.com>
Reviewed-by: NWei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

The Ack timeout of qpc need a lower limit value,otherwise
the read performance will be very lower.
Signed-off-by: NLijun Ou <oulijun@huawei.com>
Signed-off-by: NDongdong Huang(Donald) <hdd.huang@huawei.com>
Reviewed-by: NWei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

While post failed, hns roce should return the wr failed to user.
We omitted this while qp type is wrong and fixed it.
Signed-off-by: NLijun Ou <oulijun@huawei.com>
Signed-off-by: NDongdong Huang(Donald) <hdd.huang@huawei.com>
Reviewed-by: NWei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

This patch deleted the sqp_start from the structure hns_roce_caps, and
modified the calculation of the qp number.
Signed-off-by: NWei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

In hip06, there's no interface to release hem memory. So, hardware can't
identify whether hem memory released or not.
If all context in a hem memory released, the related hem memory will be
released by driver and reused by others. But, hardware don't know that
this memory can't be used already.

In order to fix this bug, hns roce driver reserved 128K memory for each
type of hem(QPC/CQC/MTPT). While unmap hem memory, hns roce driver will
write base address of reserved memory according to hem type.
Signed-off-by: NWei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: NDongdong Huang(Donald) <hdd.huang@huawei.com>
Signed-off-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

The parameter named collapsed unused in hns_roce_cq_alloc.
Also, parameter named doorbell_lock unsed in
hns_roce_v1_cq_set_ci. This patch optimize these parameters.
Signed-off-by: NLijun Ou <oulijun@huawei.com>
Reviewed-by: NWei Hu <xavier.huwei@huawei.com>
Signed-off-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

This patch mainly modify the value of HNS_ROCE_SL_SHIFT
and delete the lines for assigning for the field of
local_enable_e2e_credit in QP1C.
Signed-off-by: NLijun Ou <oulijun@huawei.com>
Reviewed-by: NWei Hu <xavier.huwei@huawei.com>
Signed-off-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Fix bug of modify qp from init to init on user mode. Otherwise,
it will oops when rmda cm established.
Signed-off-by: NLijun Ou <oulijun@huawei.com>
Reviewed-by: NWei Hu <xavier.huwei@huawei.com>
Signed-off-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

This patch mainly adds phy_port to HNS RoCE QP. This shall be
used in calculating the GSI QPN for the port.
Initally when RDMA is being established, all IB ports share a
QPN which later needs to be re-assigned to a particular GSI/QPN
and which is per-port.
This also fixes a bug in base driver where iboe port was being
used instead of phy_port at some places. This values might not
be same always.
Signed-off-by: NLijun Ou <oulijun@huawei.com>
Reviewed-by: NWei Hu <xavier.huwei@huawei.com>
Signed-off-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Fix the length of wqe that maybe lead to an error and
write the end bytes of QP1C into the register.
Signed-off-by: NLijun Ou <oulijun@huawei.com>
Reviewed-by: NWei Hu <xavier.huwei@huawei.com>
Signed-off-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

This patch is meant to add support of ACPI to the Hisilicon RoCE
driver.

Changes done are primarily meant to detect the type and then either
use DT specific or ACPI spcific functions. Where ever possible,
this patch tries to make use of Unified Device Property Interface
APIs to support both DT and ACPI through single interface.

This patch depends upon HNS ethernet driver to Reset RoCE. This
function within HNS ethernet driver has also been enhanced to
support ACPI and is part of other accompanying patch with this
patch-set.

NOTE: The changes in this patch are done over below branch,
https://github.com/dledford/linux/tree/hns-roceSigned-off-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

These are the various new source code files for the Hisilicon
RoCE driver for ARM architecture.
Signed-off-by: NWei Hu <xavier.huwei@huawei.com>
Signed-off-by: NNenglong Zhao <zhaonenglong@hisilicon.com>
Signed-off-by: NLijun Ou <oulijun@huawei.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>