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2018-03-08mlx4_ib: zero out struct ib_pd when allocatingSteve Wise1-2/+1
Zero out the fields of the struct ib_pd for user mode pds so that users querying pds via nldev will not get garbage. For simplicity, use kzalloc() to allocate the mlx4_ib_pd struct. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-03-08RDMA/nldev: provide detailed MR informationSteve Wise7-13/+102
Implement the RDMA nldev netlink interface for dumping detailed MR information. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-03-08mlx4_ib: set user mr attributes in struct ib_mrSteve Wise1-0/+3
Setting iova, length, and page_size allows this information to be seen via NLDEV netlink queries, which can aid in user rdma debugging. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-03-08iw_cxgb4: initialize ib_mr fields for user mrsSteve Wise1-0/+3
Some of the struct ib_mr fields weren't getting initialized. This was benign, but will cause problems when dumping the mr resource via nldev/restrack. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-03-08RDMA/nldev: provide detailed CQ informationSteve Wise2-0/+60
Implement the RDMA nldev netlink interface for dumping detailed CQ information. Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-03-08RDMA/nldev: provide detailed CM_ID informationSteve Wise8-43/+205
Implement RDMA nldev netlink interface to get detailed CM_ID information. Because cm_id's are attached to rdma devices in various work queue contexts, the pid and task information at restrak_add() time is sometimes not useful. For example, an nvme/f host connection cm_id ends up being bound to a device in a work queue context and the resulting pid at attach time no longer exists after connection setup. So instead we mark all cm_id's created via the rdma_ucm as "user", and all others as "kernel". This required tweaking the restrack code a little. It also required wrapping some rdma_cm functions to allow passing the module name string. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-03-08RDMA/CM: move rdma_id_private to cma_priv.hSteve Wise2-40/+80
Move struct rdma_id_private to a new header cma_priv.h so the resource tracking services in core/nldev.c can read useful information about cm_ids. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-03-08RDMA/nldev: common resource dumpit functionSteve Wise1-18/+43
Create a common dumpit function that can be used by all common resource types. This reduces code replication and simplifies the code as we add more resource types. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-03-08RDMA/restrack: clean up res_to_dev()Steve Wise1-19/+5
Simplify res_to_dev() to make it easier to read/maintain. Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-03-07net/mlx5: Fix wrongly assigned CQ reference counterLeon Romanovsky1-2/+1
The kernel compiled with CONFIG_REFCOUNT_FULL produces the following error. The reason to it that initial value of refcount_t is supposed to be more than 0, change it. [ 3.106634] ------------[ cut here ]------------ [ 3.107756] refcount_t: increment on 0; use-after-free. [ 3.109130] WARNING: CPU: 0 PID: 1 at lib/refcount.c:153 refcount_inc+0x27/0x30 [ 3.110085] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.16.0-rc1-00028-gf683e04bdccc #137 [ 3.110085] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.7.5-0-ge51488c-20140602_164612-nilsson.home.kraxel.org 04/01/2014 [ 3.110085] RIP: 0010:refcount_inc+0x27/0x30 [ 3.110085] RSP: 0000:ffffaa620000fba0 EFLAGS: 00010286 [ 3.110085] RAX: 0000000000000000 RBX: ffff9a6d1a1821c8 RCX: ffffffff98a50f48 [ 3.110085] RDX: 0000000000000001 RSI: 0000000000000086 RDI: 0000000000000246 [ 3.110085] RBP: ffff9a6d1ac800a0 R08: 0000000000000289 R09: 000000000000000a [ 3.110085] R10: fffff03bc0682840 R11: ffffffff9949856d R12: ffff9a6d1b4a4000 [ 3.110085] R13: 0000000000000000 R14: ffff9a6d1a0a6c00 R15: ffffaa620000fc5c [ 3.110085] FS: 0000000000000000(0000) GS:ffff9a6d1fc00000(0000) knlGS:0000000000000000 [ 3.110085] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3.110085] CR2: 0000000000000000 CR3: 000000000ba0a000 CR4: 00000000000006b0 [ 3.110085] Call Trace: [ 3.110085] mlx5_core_create_cq+0xde/0x250 [ 3.110085] ? __kmalloc+0x1ce/0x1e0 [ 3.110085] mlx5e_create_cq+0x15c/0x1e0 [ 3.110085] mlx5e_open_drop_rq+0xea/0x190 [ 3.110085] mlx5e_attach_netdev+0x53/0x140 [ 3.110085] mlx5e_attach+0x3d/0x60 [ 3.110085] mlx5e_add+0x11d/0x2f0 [ 3.110085] mlx5_add_device+0x77/0x170 [ 3.110085] mlx5_register_interface+0x74/0xc0 [ 3.110085] ? set_debug_rodata+0x11/0x11 [ 3.110085] init+0x67/0x72 [ 3.110085] ? mlx4_en_init_ptys2ethtool_map+0x346/0x346 [ 3.110085] do_one_initcall+0x98/0x147 [ 3.110085] ? set_debug_rodata+0x11/0x11 [ 3.110085] kernel_init_freeable+0x164/0x1e0 [ 3.110085] ? rest_init+0xb0/0xb0 [ 3.110085] kernel_init+0xa/0x100 [ 3.110085] ret_from_fork+0x35/0x40 [ 3.110085] Code: 00 00 00 00 e8 ab ff ff ff 84 c0 74 02 f3 c3 80 3d 3b c3 64 01 00 75 f5 48 c7 c7 68 0b 81 98 c6 05 2b c3 64 01 01 e8 79 d7 a3 ff <0f> ff c3 66 0f 1f 44 00 00 8b 06 83 f8 ff 74 39 31 c9 39 f8 89 [ 3.110085] ---[ end trace a0068e1c68438a74 ]--- Fixes: f105b45bf77c ("net/mlx5: CQ hold/put API") Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-07net/mlx5: IPSec, Add support for ESNAviad Yehezkel7-12/+189
Currently ESN is not supported with IPSec device offload. This patch adds ESN support to IPsec device offload. Implementing new xfrm device operation to synchronize offloading device ESN with xfrm received SN. New QP command to update SA state at the following: ESN 1 ESN 2 ESN 3 |-----------*-----------|-----------*-----------|-----------* ^ ^ ^ ^ ^ ^ ^ - marks where QP command invoked to update the SA ESN state machine. | - marks the start of the ESN scope (0-2^32-1). At this point move SA ESN overlap bit to zero and increment ESN. * - marks the middle of the ESN scope (2^31). At this point move SA ESN overlap bit to one. Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com> Signed-off-by: Yossef Efraim <yossefe@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-07net/mlx5e: Added common function for to_ipsec_sa_entryAviad Yehezkel1-10/+19
New function for getting driver internal sa entry from xfrm state. All checks are done in one function. Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-07net/mlx5: Add flow-steering commands for FPGA IPSec implementationAviad Yehezkel7-0/+770
In order to add a context to the FPGA, we need to get both the software transform context (which includes the keys, etc) and the source/destination IPs (which are included in the steering rule). Therefore, we register new set of firmware like commands for the FPGA. Each time a rule is added, the steering core infrastructure calls the FPGA command layer. If the rule is intended for the FPGA, it combines the IPs information with the software transformation context and creates the respective hardware transform. Afterwards, it calls the standard steering command layer. Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-07net/mlx5: Refactor accel IPSec codeAviad Yehezkel7-225/+668
The current code has one layer that executed FPGA commands and the Ethernet part directly used this code. Since downstream patches introduces support for IPSec in mlx5_ib, we need to provide some abstractions. This patch refactors the accel code into one layer that creates a software IPSec transformation and another one which creates the actual hardware context. The internal command implementation is now hidden in the FPGA core layer. The code also adds the ability to share FPGA hardware contexts. If two contexts are the same, only a reference count is taken. Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-07net/mlx5: Added required metadata capability for ipsecAviad Yehezkel2-2/+5
Currently our device requires additional metadata in packet to perform ipsec crypto offload. Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-07net/mlx5: Export ipsec capabilitiesAviad Yehezkel5-24/+73
We will need that for ipsec verbs. Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-07net/mlx5: IPSec, Add command V2 supportAviad Yehezkel6-44/+66
This patch adds V2 command support. New fpga devices support extended features (udp encap, esn etc...), this features require new hardware sadb format therefore we have a new version of commands to manipulate it. Signed-off-by: Yossef Efraim <yossefe@mellanox.com> Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-07net/mlx5e: IPSec, Add support for ESP trailer removal by hardwareYossi Kuperman6-2/+80
Current hardware decrypts and authenticates incoming ESP packets. Subsequently, the software extracts the nexthdr field, truncates the trailer and adjusts csum accordingly. With this patch and a capable device, the trailer is being removed by the hardware and the nexthdr field is conveyed via PET. This way we avoid both the need to access the trailer (cache miss) and to compute its relative checksum, which significantly improve the performance. Experiment shows that trailer removal improves the performance by 2Gbps, (netperf). Both forwarding and host-to-host configurations. Signed-off-by: Yossi Kuperman <yossiku@mellanox.com> Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-07net/mlx5: IPSec, Generalize sandbox QP commandsYossi Kuperman2-51/+81
The current code assume only SA QP commands. Refactor in order to pave the way for new QP commands: 1. Generic cmd response format. 2. SA cmd checks are in dedicated functions. 3. Aligned debug prints. Signed-off-by: Yossi Kuperman <yossiku@mellanox.com> Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-07net/mlx5: Use MLX5_IPSEC_DEV macro for ipsec capsSaeed Mahameed1-2/+1
Fix build break of mlx5_accel_ipsec_device_caps is not defined when MLX5_ACCEL is not selected, use MLX5_IPSEC_DEV instead which handles such case. Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Reported-by: Doug Ledford <dledford@redhat.com>
2018-03-07IB/mlx4: Move mlx4_uverbs_ex_query_device_resp to include/uapi/Yishai Hadas2-14/+14
This struct is involved in the user API for mlx4 and should not be hidden inside a driver header file. Fixes: 09d208b258a2 ("IB/mlx4: Add report for RSS capabilities by vendor channel") Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-03-07IB/rxe: change the function rxe_init_device_param typeZhu Yanjun1-3/+1
The function rxe_init_device_param always return 0. So the function type is changed to void. CC: Srinivas Eeda <srinivas.eeda@oracle.com> CC: Junxiao Bi <junxiao.bi@oracle.com> Signed-off-by: Zhu Yanjun <yanjun.zhu@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-03-07IB/rxe: remove unnecessary rxe in rxe_sendZhu Yanjun2-4/+3
In the function rxe_send, the variable rxe is not used in it. So it should be removed. CC: Srinivas Eeda <srinivas.eeda@oracle.com> CC: Junxiao Bi <junxiao.bi@oracle.com> Signed-off-by: Zhu Yanjun <yanjun.zhu@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-03-07IB/rxe: remove unnecessary skb_cloneZhu Yanjun1-12/+3
In send_atomic_ack function, it is not necessary to make a skb_clone. To gain better performance (high throughput and low latency), this skb_clone is removed. The following tests are made. server client --------- --------- |1.1.1.1|<----rxe-channel--->|1.1.1.2| --------- --------- On server: rping -s -a 1.1.1.1 -v -C 1000 -S 512 On client: rping -c -a 1.1.1.1 -v -C 1000 -S 512 The kernel config CONFIG_DEBUG_KMEMLEAK is enabled on both server and client. This test runs for several hours. There is no memory leak and the whole system can work well. Based on the above network, the following tests are made. Server: ibv_rc_pingpong -d rxe0 -g 1 Client: ibv_rc_pingpong -d rxe0 -g 1 1.1.1.1 The test results on Server(10 tests are made). Before: Throughput is 137.07 Mbit/sec Latency is 517.76 usec/iter After: Throughput is 148.85 Mbit/sec Latency is 476.64 usec/iter The throughput is enhanced and the latency is reduced. CC: Srinivas Eeda <srinivas.eeda@oracle.com> CC: Junxiao Bi <junxiao.bi@oracle.com> Signed-off-by: Zhu Yanjun <yanjun.zhu@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-03-07IB/srpt: Add RDMA/CM supportBart Van Assche2-63/+325
Add a parameter for configuring the port on which the ib_srpt driver listens for incoming RDMA/CM connections, namely /sys/kernel/config/target/srpt/discovery_auth/rdma_cm_port. The default value for this parameter is 0 which means "do not listen for incoming RDMA/CM connections". Add RDMA/CM support to all code that handles connection state changes. Modify srpt_init_nodeacl() such that ACLs can be configured for IPv4 and IPv6 addresses. Note: incoming connection requests are only accepted for ports that have been enabled. See also the "if (!sport->enabled)" code in the connection request handler. See also the following configfs attribute: /sys/kernel/config/target/srpt/$port/$port/enable. Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-03-07RDMA/ucma: Check that user doesn't overflow QP stateLeon Romanovsky1-0/+3
The QP state is limited and declared in enum ib_qp_state, but ucma user was able to supply any possible (u32) value. Reported-by: syzbot+0df1ab766f8924b1edba@syzkaller.appspotmail.com Fixes: 75216638572f ("RDMA/cma: Export rdma cm interface to userspace") Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-03-07RDMA/mlx5: Fix integer overflow while resizing CQLeon Romanovsky1-1/+6
The user can provide very large cqe_size which will cause to integer overflow as it can be seen in the following UBSAN warning: Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-03-07RDMA/ucma: Limit possible option sizeLeon Romanovsky1-0/+3
Users of ucma are supposed to provide size of option level, in most paths it is supposed to be equal to u8 or u16, but it is not the case for the IB path record, where it can be multiple of struct ib_path_rec_data. This patch takes simplest possible approach and prevents providing values more than possible to allocate. Reported-by: syzbot+a38b0e9f694c379ca7ce@syzkaller.appspotmail.com Fixes: 7ce86409adcd ("RDMA/ucma: Allow user space to set service type") Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-03-07IB/core: Fix possible crash to access NULL netdevParav Pandit1-4/+3
resolved_dev returned might be NULL as ifindex is transient number. Ignoring NULL check of resolved_dev might crash the kernel. Therefore perform NULL check before accessing resolved_dev. Additionally rdma_resolve_ip_route() invokes addr_resolve() which performs check and address translation for loopback ifindex. Therefore, checking it again in rdma_resolve_ip_route() is not helpful. Therefore, the code is simplified to avoid IFF_LOOPBACK check. Fixes: 200298326b27 ("IB/core: Validate route when we init ah") Reviewed-by: Daniel Jurgens <danielj@mellanox.com> Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-03-06net/mlx5: Flow steering cmd interface should get the fte when deletingAviad Yehezkel3-5/+5
Previously, deleting a flow steering entry only got the index. Since the FPGA implementation of FTE's deletion might need to dig inside the FTE itself, we would like to get the FTE's context. Changing the interface to pass the FTE context. Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com> Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-06{net,IB}/mlx5: Add flow steering helpersBoris Pismenny3-6/+143
Add helper functions that check if a protocol is part of a flow steering match criteria. Signed-off-by: Boris Pismenny <borisp@mellanox.com> Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-06net/mlx5: Embed mlx5_flow_act into fs_fteMatan Barak4-25/+21
fte objects contain the match value and action. Currently, extending the actions require in adding them both to the API and fs_fte. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-06net/mlx5: Add empty egress namespace to flow steering coreAviad Yehezkel6-0/+36
Currently, we don't support egress flow steering namespace in mlx5 flow steering core implementation. However, when we want to encrypt a packet, we model it as a flow steering rule in the egress path. To overcome this, we add an empty egress namespace to flow steering. This namespace is initialized only when ipsec support exists. In the future, this will grow to a full blown full steering implementation, resembling the ingress path. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-06net/mlx5: Add shim layer between fs and cmdMatan Barak4-100/+248
The shim layer allows each namespace to define possibly different functionality for add/delete/update commands. The shim layer introduced here, will be used to support flow steering with the FPGA. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com> Signed-off-by: Boris Pismenny <borisp@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-06{net,IB}/mlx5: Add has_tag to mlx5_flow_actMatan Barak4-2/+5
The has_tag member will indicate whether a tag action was specified in flow specification. A flow tag 0 = MLX5_FS_DEFAULT_FLOW_TAG is assumed a valid flow tag that is currently used by mlx5 RDMA driver, whereas in HW flow_tag = 0 means that the user doesn't care about flow_tag. HW always provide a flow_tag = 0 if all flow tags requested on a specific flow are 0. So we need a way (in the driver) to differentiate between a user really requesting flow_tag = 0 and a user who does not care, in order to be able to report conflicting flow tags on a specific flow. Signed-off-by: Matan Barak <matanb@mellanox.com> Reviewed-by: Aviad Yehezkel <aviadye@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-06IB/mlx5: Pass mlx5_flow_act struct instead of multiple argumentsBoris Pismenny1-12/+8
Group and pass all function arguments of parse_flow_attr call in one common struct mlx5_flow_act. This patch passes all the action arguments of parse_flow_attr in one common struct mlx5_flow_act. It allows us to scale the number of actions without adding new arguments to the function. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Boris Pismenny <borisp@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Acked-by: Jason Gunthorpe <jgg@mellanox.com>
2018-03-06net/mlx5: FPGA and IPSec initialization to be before flow steeringMatan Barak1-19/+20
Some flow steering namespace initialization (i.e. egress namespace) might depend on FPGA capabilities. Changing the initialization order such that the FPGA will be initialized before flow steering. Flow steering fs cmds initialization might depend on IPSec capabilities. Changing the initialization order such that the IPSec will be initialized before flow steering as well. Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com> Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-06net/mlx5e: Removed not need synchronize_rcuAviad Yehezkel1-2/+2
This is already done by xfrm layer between state_dev_del callback to state_dev_free callback. Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-06net/mlx5e: Fixed sleeping inside atomic contextAviad Yehezkel1-9/+4
We can't allocate with GFP_KERNEL inside spinlock. Actually ida_simple doesn't require spinlock so remove it. Fixes: 547eede070eb ("net/mlx5e: IPSec, Innova IPSec offload infrastructure") Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-06net/mlx5e: Wait for FPGA command responses with a timeoutAviad Yehezkel1-3/+6
Generally, FPGA IPSec commands must always complete. We want to wait for one minute for them to complete gracefully also when killing a process. Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-06net/mlx5: Fixed compilation issue when CONFIG_MLX5_ACCEL is disabledAviad Yehezkel1-2/+2
IPSec init and cleanup functions also depends on linux/mlx5/driver.h. Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-06IB/mlx5: Removed not used parametersAviad Yehezkel2-5/+0
Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Acked-by: Jason Gunthorpe <jgg@mellanox.com>
2018-03-06RDMA/bnxt_re: Avoid Hard lockup during error CQE processingSelvin Xavier6-90/+55
Hitting the following hardlockup due to a race condition in error CQE processing. [26146.879798] bnxt_en 0000:04:00.0: QPLIB: FP: CQ Processed Req [26146.886346] bnxt_en 0000:04:00.0: QPLIB: wr_id[1251] = 0x0 with status 0xa [26156.350935] NMI watchdog: Watchdog detected hard LOCKUP on cpu 4 [26156.357470] Modules linked in: nfsd auth_rpcgss nfs_acl lockd grace [26156.447957] CPU: 4 PID: 3413 Comm: kworker/4:1H Kdump: loaded [26156.457994] Hardware name: Dell Inc. PowerEdge R430/0CN7X8, [26156.466390] Workqueue: ib-comp-wq ib_cq_poll_work [ib_core] [26156.472639] Call Trace: [26156.475379] <NMI> [<ffffffff98d0d722>] dump_stack+0x19/0x1b [26156.481833] [<ffffffff9873f775>] watchdog_overflow_callback+0x135/0x140 [26156.489341] [<ffffffff9877f237>] __perf_event_overflow+0x57/0x100 [26156.496256] [<ffffffff98787c24>] perf_event_overflow+0x14/0x20 [26156.502887] [<ffffffff9860a580>] intel_pmu_handle_irq+0x220/0x510 [26156.509813] [<ffffffff98d16031>] perf_event_nmi_handler+0x31/0x50 [26156.516738] [<ffffffff98d1790c>] nmi_handle.isra.0+0x8c/0x150 [26156.523273] [<ffffffff98d17be8>] do_nmi+0x218/0x460 [26156.528834] [<ffffffff98d16d79>] end_repeat_nmi+0x1e/0x7e [26156.534980] [<ffffffff987089c0>] ? native_queued_spin_lock_slowpath+0x1d0/0x200 [26156.543268] [<ffffffff987089c0>] ? native_queued_spin_lock_slowpath+0x1d0/0x200 [26156.551556] [<ffffffff987089c0>] ? native_queued_spin_lock_slowpath+0x1d0/0x200 [26156.559842] <EOE> [<ffffffff98d083e4>] queued_spin_lock_slowpath+0xb/0xf [26156.567555] [<ffffffff98d15690>] _raw_spin_lock+0x20/0x30 [26156.573696] [<ffffffffc08381a1>] bnxt_qplib_lock_buddy_cq+0x31/0x40 [bnxt_re] [26156.581789] [<ffffffffc083bbaa>] bnxt_qplib_poll_cq+0x43a/0xf10 [bnxt_re] [26156.589493] [<ffffffffc083239b>] bnxt_re_poll_cq+0x9b/0x760 [bnxt_re] The issue happens if RQ poll_cq or SQ poll_cq or Async error event tries to put the error QP in flush list. Since SQ and RQ of each error qp are added to two different flush list, we need to protect it using locks of corresponding CQs. Difference in order of acquiring the lock in SQ poll_cq and RQ poll_cq can cause a hard lockup. Revisits the locking strategy and removes the usage of qplib_cq.hwq.lock. Instead of this lock, introduces qplib_cq.flush_lock to handle addition/deletion of QPs in flush list. Also, always invoke the flush_lock in order (SQ CQ lock first and then RQ CQ lock) to avoid any potential deadlock. Other than the poll_cq context, the movement of QP to/from flush list can be done in modify_qp context or from an async error event from HW. Synchronize these operations using the bnxt_re verbs layer CQ locks. To achieve this, adds a call back to the HW abstraction layer(qplib) to bnxt_re ib_verbs layer in case of async error event. Also, removes the buddy cq functions as it is no longer required. Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com> Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com> Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com> Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-03-06RDMA/core: Reduce poll batch for direct cq pollingMax Gurtovoy1-10/+11
Fix warning limit for kernel stack consumption: drivers/infiniband/core/cq.c: In function 'ib_process_cq_direct': drivers/infiniband/core/cq.c:78:1: error: the frame size of 1032 bytes is larger than 1024 bytes [-Werror=frame-larger-than=] Using smaller ib_wc array on the stack brings us comfortably below that limit again. Fixes: 246d8b184c10 ("IB/cq: Don't force IB_POLL_DIRECT poll context for ib_process_cq_direct") Reported-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Sergey Gorenko <sergeygo@mellanox.com> Signed-off-by: Max Gurtovoy <maxg@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-03-06IB/mlx5: Fix an error code in __mlx5_ib_modify_qp()Dan Carpenter1-1/+3
"err" is either zero or possibly uninitialized here. It should be -EINVAL. Fixes: 427c1e7bcd7e ("{IB, net}/mlx5: Move the modify QP operation table to mlx5_ib") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-03-06IB/mlx5: When not in dual port RoCE mode, use provided port as nativeMark Bloch1-3/+7
The series that introduced dual port RoCE mode assumed that we don't have a dual port HCA that use the mlx5 driver, this is not the case for Connect-IB HCAs. This reasoning led to assigning 1 as the native port index which causes issue when the second port is used. For example query_pkey() when called on the second port will return values of the first port. Make sure that we assign the right port index as the native port index. Fixes: 32f69e4be269 ("{net, IB}/mlx5: Manage port association for multiport RoCE") Reviewed-by: Daniel Jurgens <danielj@mellanox.com> Signed-off-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-03-06IB/mlx4: Include GID type when deleting GIDs from HW table under RoCEJack M1-2/+7
The commit cited below added a gid_type field (RoCEv1 or RoCEv2) to GID properties. When adding GIDs, this gid_type field was copied over to the hardware gid table. However, when deleting GIDs, the gid_type field was not copied over to the hardware gid table. As a result, when running RoCEv2, all RoCEv2 gids in the hardware gid table were set to type RoCEv1 when any gid was deleted. This problem would persist until the next gid was added (which would again restore the gid_type field for all the gids in the hardware gid table). Fix this by copying over the gid_type field to the hardware gid table when deleting gids, so that the gid_type of all remaining gids is preserved when a gid is deleted. Fixes: b699a859d17b ("IB/mlx4: Add gid_type to GID properties") Reviewed-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-03-06IB/mlx4: Fix corruption of RoCEv2 IPv4 GIDsJack Morgenstein1-2/+0
When using IPv4 addresses in RoCEv2, the GID format for the mapped IPv4 address should be: ::ffff:<4-byte IPv4 address>. In the cited commit, IPv4 mapped IPV6 addresses had the 3 upper dwords zeroed out by memset, which resulted in deleting the ffff field. However, since procedure ipv6_addr_v4mapped() already verifies that the gid has format ::ffff:<ipv4 address>, no change is needed for the gid, and the memset can simply be removed. Fixes: 7e57b85c444c ("IB/mlx4: Add support for setting RoCEv2 gids in hardware") Reviewed-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-03-06RDMA/qedr: Fix iWARP write and send with immediateKalderon, Michal1-0/+10
iWARP does not support RDMA WRITE or SEND with immediate data. Driver should check this before submitting to FW and return an immediate error Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-03-06RDMA/qedr: Fix kernel panic when running fio over NFSoRDMAKalderon, Michal1-1/+2
Race in qedr_poll_cq, lastest_cqe wasn't protected by lock, leading to a case where two context's accessing poll_cq at the same time lead to one of them having a pointer to an old latest_cqe and reading an invalid cqe element Signed-off-by: Amit Radzi <Amit.Radzi@cavium.com> Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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