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2018-12-11Merge tag 'v4.20-rc6' into rdma.git for-nextJason Gunthorpe1-68/+60
For dependencies in following patches.
2018-12-11RDMA/hns: Bugfix for RoCE loopback testLijun Ou2-0/+55
This patch implements a cmdq to enable the loopback of ssu module according to the modified hardware desgin. The ssu consists of ingress unit, packet buffer and programmable packet process unit. if the loopback bit of ssu is not enabled, the roce packet with loopback bit will fail. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-12-11RDMA/hns: Update posting & querying mailboxLijun Ou3-41/+59
This patch updates the implementation of the mailbox command interface by using command queue instead of operating registers. With this update, the software can be well decoupled with the hardware. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Yixian Liu <liuyixian@huawei.com> Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-12-11RDMA/hns: Fix the bug while use multi-hop of pblLijun Ou1-2/+2
It will prevent multiply overflow when defines the pbl for u64 type. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-12-11RDMA/hns: Encapsulate and simplify qp state transitionLijun Ou1-15/+16
This patch move the codes of qp state transition into the new function as well as simplify the logic for other qp states transition. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-12-11RDMA/hns: Init qp context when modify qp from reset to initLijun Ou1-0/+1
It needs to clear qp context previous when init qp context. Otherwise, the newly created qp context residue has the contents of the qp context before the uninstall, and the qp context content is disordered, causing the task to fail. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-12-05RDMA/hns: Add SRQ asynchronous event supportLijun Ou3-1/+36
This patch implements the process flow of SRQ asynchronous event. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-12-05RDMA/hns: Add SRQ support for hip08 kernel modeLijun Ou9-52/+1092
This patch implements the SRQ(Share Receive Queue) verbs and update the poll cq verbs to deal with SRQ complentions. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-12-05RDMA/hns: Init SRQ table for hip08Lijun Ou9-1/+140
This patch inits hem resource for SRQ table, includes SRQWQE and SRQWQE index resource. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-12-05RDMA/hns: Eanble SRQ capacity for hip08Lijun Ou4-1/+18
This patch configures the flags for enabling the SRQ(Share Receive Queue) capacity as well as update the verb of querying device for setting srq specifications. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-11-23RDMA/hns: Bugfix pbl configuration for rereg mrYixian Liu1-68/+60
Current hns driver assigned the first two PBL page addresses from previous registered MR to the hardware when reregister MR changing the memory locations occurred. This will lead to PBL addressing error as the PBL has already been released. This patch fixes this wrong assignment by using the page address from new allocated PBL. Fixes: a2c80b7b4119 ("RDMA/hns: Add rereg mr support for hip08") Signed-off-by: Yixian Liu <liuyixian@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-11-06RDMA/hns: prefer dma_zalloc_coherent to dma_alloc_coherent/memseAllen Pais1-6/+3
This is a mechanical transformation, no change in logic. Signed-off-by: Allen Pais <allen.lkml@gmail.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-10-16RDMA/hns: Add FRMR support for hip08Yixian Liu5-10/+218
This patch adds fast register physical memory region (FRMR) support for hip08. Signed-off-by: Yixian Liu <liuyixian@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-10-03RDMA/hns: Bugfix for atomic operationLijun Ou1-10/+21
The atomic operation not supported inline. Besides, the standard atomic operation only support a sge and the sge is placed in the wqe. Fix: 384f881("RDMA/hns: Add atomic support") Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-10-03RDMA/hns: Add vlan enable bit for hip08Lijun Ou2-0/+13
In order to extend vlan device range, the design add two field of qp context for checking vlan packet in sender and in recevicer. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-10-03RDMA/hns: Support local invalidate for hip08 in kernel spaceLijun Ou1-1/+5
This patch adds local invalidate Memory Region (MR) support in the kernel space driver. Signed-off-by: Yangyang Li <liyangyang20@huawei.com> Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-10-03RDMA/hns: Update some fields of qp contextLijun Ou2-66/+45
The hip08 hardware has two version. the version id are 0x20 and 0x21 according to the pci revision. It needs to adjust some fields for extending new features. The specific updates include: 1. Add some fields for supporting new features by enabling some reserved fields in 0x20 version. 2. remove some fields which the user is not visiable in order to support the extend features. 3. Init some fields with zero. These updates is compatible with 0x20 version. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-10-03RDMA/hns: Limit extend sq sge numLijun Ou1-1/+7
According to hip08 limit, the buffer size of extend sge needs to be an integer wqe_sge_buf_page size. For example, the value of sge_shift field of qp context is greater or equal to eight when buffer page size is 4K size. The value of sge_shift field of qp context assigned by hr_qp->sge.sge_cnt. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-10-03RDMA/hns: Update some attributes of the RoCE deviceLijun Ou4-3/+36
According to the IB protocol definition, the driver needs to show the correct device information and the information will be queryed by device attribute. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-10-03RDMA/hns: Configure ecn field of ip headerLijun Ou1-2/+9
In order to compatible with the third party RoCE device, The hardware modify the set method for the ecn field of ip header in new hip08 version. The high 6bit of tclass be assigned for dscp field of packet. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-10-03RDMA/hns: Limit the size of extend sge of sqLijun Ou4-0/+22
The hip08 split two hardware version. The version id are 0x20 and 0x21 according to the PCI revison. The max size of extend sge of sq is limited to 2M for 0x20 version and 8M for 0x21 version. It may be exceeded to 2M according to the algorithm that compute the product of wqe count and extend sge number of every wqe. But the product always less than 8M. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-10-03RDMA/hns: Bugfix for CM testLijun Ou1-0/+1
It will print the warning when the MSB bit of SLID is not zero running cm_req_handler function that test CM. It needs to fixed zero when test RoCE device. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-10-03RDMA/hns: Submit bad wr when post send wr exceptionLijun Ou1-0/+1
When user issues a RDMA read and enables sq inline, it needs to report a bad wr to user. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-10-03RDMA/hns: Bugfix for reserved qp numberLijun Ou4-2/+11
It needs to include two special qps for every port. The hip08 have four ports and the all reserved qp numbers are eight. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-10-03RDMA: Remove unused parameter from ib_modify_qp_is_ok()Kamal Heib1-2/+2
The ll parameter is not used in ib_modify_qp_is_ok(), so remove it. Signed-off-by: Kamal Heib <kamalheib1@gmail.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-09-30RDMA/hns: remove set but not used variable 'dseg'YueHaibing1-7/+0
Fixes gcc '-Wunused-but-set-variable' warning: drivers/infiniband/hw/hns/hns_roce_hw_v2.c: In function 'hns_roce_v2_post_send': drivers/infiniband/hw/hns/hns_roce_hw_v2.c:194:35: warning: variable 'dseg' set but not used [-Wunused-but-set-variable] Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-09-27RDMA/hns: fix spelling mistake "reseved" -> "reserved"Colin Ian King1-2/+2
Trivial fix to spelling mistake in dev_err error message Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-09-26RDMA/hns: Add MW support for hip08Yixian Liu5-0/+205
This patch adds memory window (mw) support in the kernel space. Signed-off-by: Yixian Liu <liuyixian@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-09-26RDMA/hns: Add enable judgement for UD vlanLijun Ou4-1/+11
According to the hardware modification, the vlan of the UD packet is based on the ud_vlan_en field of the UD wqe to determine whether to add a vlan header to the UD packet. The ud_vlan_en field is filled by the driver according to the net device. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-09-26RDMA/hns: Add CM of vlan device supportLijun Ou2-1/+13
This patch mainly sets the vlan_id field in the WC for rdma_listen() to work over vlan. This is required by ib_init_ah_attr_from_wc() which is called by the CM REQ handler. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-09-26RDMA/hns: Add atomic supportLijun Ou4-3/+45
This patch adds atomic operations for hip08, includes fetchadd and cmpswap operation. In order to enable atomic, the driver needs to do the following steps: 1. Enable the atomic caps for RoCE device 2. Post the wqe context of atomic type 3. Configure the atomic type of mtpt Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-09-26RDMA/hns: Refactor the codes for setting transport opodeLijun Ou1-48/+18
Currently the transport opcodes which come from users configuration is set by similar code. This patch simplifies it. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-09-26RDMA: Fully setup the device name in ib_register_deviceJason Gunthorpe1-2/+1
The current code has two copies of the device name, ibdev->dev and dev_name(&ibdev->dev), and they are setup at different times, which is very confusing. Set them both up at the same time and make dev_name() the lead name, which is the proper use of the driver core APIs. To make it very clear that the name is not valid until registration pass it in to the ib_register_device() call rather than messing with ibdev->name directly. Also the reorganization now checks that dev_name is unique even if it does not contain a %. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Acked-by: Adit Ranadive <aditr@vmware.com> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Acked-by: Devesh Sharma <devesh.sharma@broadcom.com> Reviewed-by: Shiraz Saleem <shiraz.saleem@intel.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
2018-09-26RDMA: Fix dependencies for rdma_user_mmap_ioArnd Bergmann1-0/+1
The mlx4 driver produces a link error when it is configured as built-in while CONFIG_INFINIBAND_USER_ACCESS is set to =m: drivers/infiniband/hw/mlx4/main.o: In function `mlx4_ib_mmap': main.c:(.text+0x1af4): undefined reference to `rdma_user_mmap_io' The same function is called from mlx5, which already has a dependency to ensure we can call it, and from hns, which appears to suffer from the same problem. This adds the same dependency that mlx5 uses to the other two. Fixes: 6745d356ab39 ("RDMA/hns: Use rdma_user_mmap_io") Fixes: c282da4109e4 ("RDMA/mlx4: Use rdma_user_mmap_io") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-09-20RDMA/hns: Use rdma_user_mmap_ioJason Gunthorpe2-88/+21
Rely on the new core code helper to map BAR memory from the driver. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-09-19RDMA/hns: Move all prints out of irq handleliuyixian2-132/+97
It will trigger unnecessary interrupts caused by time out if prints inside aeq handle under some configurations. Thus, move all prints out of aeq handle to work queue. Signed-off-by: liuyixian <liuyixian@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-09-11RDMA/hns: Fix an error code in hns_roce_v2_init_eq_table()Dan Carpenter1-0/+1
The error code isn't set on this path. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-08-16Merge branch 'linus/master' into rdma.git for-nextJason Gunthorpe1-6/+4
rdma.git merge resolution for the 4.19 merge window Conflicts: drivers/infiniband/core/rdma_core.c - Use the rdma code and revise with the new spelling for atomic_fetch_add_unless drivers/nvme/host/rdma.c - Replace max_sge with max_send_sge in new blk code drivers/nvme/target/rdma.c - Use the blk code and revise to use NULL for ib_post_recv when appropriate - Replace max_sge with max_recv_sge in new blk code net/rds/ib_send.c - Use the net code and revise to use NULL for ib_post_recv when appropriate Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-08-15RDMA/hns: Fix usage of bitmap allocation functions return valuesGal Pressman2-2/+5
hns bitmap allocation functions return 0 on success and -1 on failure. Callers of these functions wrongly used their return value as an errno, fix that by making a proper conversion. Fixes: a598c6f4c5a8 ("IB/hns: Simplify function of pd alloc and qp alloc") Signed-off-by: Gal Pressman <pressmangal@gmail.com> Acked-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-08-02RDMA/hns: Support flush cqe for hip08 in kernel spaceYixian Liu4-20/+240
According to IB protocol, there are some cases that work requests must return the flush error completion status through the completion queue. Due to hardware limitation, the driver needs to assist the flush process. This patch adds the support of flush cqe for hip08 in the cases that needed, such as poll cqe, post send, post recv and aeqe handle. The patch also considered the compatibility between kernel and user space. Signed-off-by: Yixian Liu <liuyixian@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-30RDMA/hns: Program the tclass and flow label into the hardwareLijun Ou4-10/+13
This was missed in a few places, and was just using 0. Also correct the spelling of HNS_ROCE_FLOW_LABEL_MASK Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-30RDMA/hns: Use macro instead of magic numberLijun Ou2-2/+5
This patch mainly uses CMD_CSQ_DESC_NUM instead of magic number in order to improve readability. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-30RDMA/hns: Modify qp will return errno when qp type is illegalLijun Ou1-0/+1
Set for ret was missing in the error path here, resulting in incorrect error code for modify_qp. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-30RDMA/hns: Assign the value for vlan field of qp contextLijun Ou2-6/+13
This patch mainly fills the correct value into the vlan id field of qp context as well as update the vlan field name according to the latest hardware user manual. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-30RDMA/hns: Only assgin the fields of the av if IB_QP_AV bit is setLijun Ou1-31/+80
Only when the IB_QP_AV flag of attr_mask is set is it valid to assign the related fields of the av into the qp context. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-30RDMA, core and ULPs: Declare ib_post_send() and ib_post_recv() arguments constBart Van Assche3-14/+19
Since neither ib_post_send() nor ib_post_recv() modify the data structure their second argument points at, declare that argument const. This change makes it necessary to declare the 'bad_wr' argument const too and also to modify all ULPs that call ib_post_send(), ib_post_recv() or ib_post_srq_recv(). This patch does not change any functionality but makes it possible for the compiler to verify whether the ib_post_(send|recv|srq_recv) really do not modify the posted work request. To make this possible, only one cast had to be introduce that casts away constness, namely in rpcrdma_post_recvs(). The only way I can think of to avoid that cast is to introduce an additional loop in that function or to change the data type of bad_wr from struct ib_recv_wr ** into int (an index that refers to an element in the work request list). However, both approaches would require even more extensive changes than this patch. Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-30RDMA: Constify the argument of the work request conversion functionsBart Van Assche2-3/+3
When posting a send work request, the work request that is posted is not modified by any of the RDMA drivers. Make this explicit by constifying most ib_send_wr pointers in RDMA transport drivers. Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-26RDMA/hns: Enable modify_cq for uverbs.Lijun Ou1-0/+3
The driver implements the modify_cq callback, but did not set the bit to expose it to userspace. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-26RDMA/hns: Update the data type of immediate dataLijun Ou2-7/+11
Because the data structure of hip08 is little endian, it needs to fix the immediate field of wqe and cqe into __le32. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-26RDMA/hns: Use delay instead of usleepLijun Ou1-2/+2
In order to avoid using usleep function in lock function, we use delay function instead of it. Besides, it also use brackets for standardized the computed order. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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