- 21 May, 2020 19 commits
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Jason Gunthorpe authored
Linux 5.7-rc6 Conflict in drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c resolved by deleting dr_cq_event, matching how netdev resolved it. Required for dependencies in the following patches. Signed-off-by:Jason Gunthorpe <jgg@mellanox.com>
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Piotr Stankiewicz authored
This patch hooks the transmit side of the datagram netdev with ipoib by setting the rdma_netdev_get_params function for the hfi1 ib_device_ops structue. It also enables the receiving side by adding the AIP capability into the default capabilities. Link: https://lore.kernel.org/r/20200511160712.173205.65700.stgit@awfm-01.aw.intel.comReviewed-by:
Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Piotr Stankiewicz <piotr.stankiewicz@intel.com> Signed-off-by:
Kaike Wan <kaike.wan@intel.com> Signed-off-by:
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Gary Leshner authored
This is the prerequisite modification to the ipoib ulp to allow a rdma netdev to obtain the default ndo ops for init/uninit/open/close. This is accomplished by setting the netdev ops field within the callback function passed to the netdev allocation routine which in turn was passed into the rdma netdev allocation routine. This allows the rdma netdev to call back into the ulp to create the resources required for connected mode operation. Additionally as the ulp is not re-entrant, when switching modes, the number of real tx queues is set to 1 for the connected mode. For datagram mode the number of real tx queues is set to the actual number of tx queues specified at the netdev's allocation. For the internal ulp netdev the number of tx queues defaults to 1. It is up to the rdma netdev to specify the actual number it can support. When the driver does not support a rdma netdev for acceleration, (-ENOTSUPPORTED return code or the verbs function for allocation is NULL) the ipoib ulp functions are unaffected by using the internal netdev allocated by the ipoib ulp. Link: https://lore.kernel.org/r/20200511160706.173205.19086.stgit@awfm-01.aw.intel.comReviewed-by:
Gary Leshner <Gary.S.Leshner@intel.com> Signed-off-by:
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Grzegorz Andrejczuk authored
Add a simple trace event taking context number and building simple histogram to print packets distribution between contexts. Link: https://lore.kernel.org/r/20200511160700.173205.84270.stgit@awfm-01.aw.intel.comReviewed-by:
Grzegorz Andrejczuk <grzegorz.andrejczuk@intel.com> Signed-off-by:
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Gary Leshner authored
When in connected mode ipoib sent broadcast pings which exceeded the mtu size for broadcast addresses. Add an mtu attribute to the rdma_netdev structure which ipoib sets to its mcast mtu size. The RDMA netdev uses this value to determine if the skb length is too long for the mtu specified and if it is, drops the packet and logs an error about the errant packet. Link: https://lore.kernel.org/r/20200511160655.173205.14546.stgit@awfm-01.aw.intel.comReviewed-by:
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Grzegorz Andrejczuk authored
As described in earlier patches, ipoib netdev will share receive contexts with existing VNIC netdev through a dummy netdev. The following changes are made to achieve that: - Set up netdev receive contexts after user contexts. A function is added to count the available netdev receive contexts. - Add functions to set/get receive map table free index. - Rename NUM_VNIC_MAP_ENTRIES as NUM_NETDEV_MAP_ENTRIES. - Let the dummy netdev own the receive contexts instead of VNIC. - Allocate the dummy netdev when the hfi1 device is added and free it when the device is removed. - Initialize AIP RSM rules when the IpoIb rxq is initialized and remove the rules when it is de-initialized. - Convert VNIC to use the dummy netdev. Link: https://lore.kernel.org/r/20200511160649.173205.4626.stgit@awfm-01.aw.intel.comReviewed-by:
Sadanand Warrier <sadanand.warrier@intel.com> Signed-off-by:
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Grzegorz Andrejczuk authored
This patch adds the rx functions for the dummy netdev: - Functions to allocate/free the dummy netdev. - Functions to allocate/free receiving contexts for the netdev. - Functions to initialize/de-initialize the receive queue. - Functions to enable/disable the receive queue. Link: https://lore.kernel.org/r/20200511160643.173205.75087.stgit@awfm-01.aw.intel.comReviewed-by:
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Grzegorz Andrejczuk authored
This patch adds the interrupt handler function, the NAPI poll function, and its associated helper functions for receiving accelerated ipoib packets. While we are here, fix the formats of two error printouts. Link: https://lore.kernel.org/r/20200511160637.173205.64890.stgit@awfm-01.aw.intel.comReviewed-by:
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Kaike Wan authored
Ipoib netdev will share receive contexts with existing VNIC netdev. To achieve that, a dummy netdev is allocated with hfi1_devdata to own the receive contexts, and ipoib and VNIC netdevs will be put on top of it. Each receive context is associated with a single NAPI object. This patch adds the functions to receive incoming packets for accelerated ipoib. Link: https://lore.kernel.org/r/20200511160631.173205.54184.stgit@awfm-01.aw.intel.comReviewed-by:
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Grzegorz Andrejczuk authored
Rename num_vnic_contexts as num_ndetdev_contexts since VNIC and ipoib will share the same set of receive contexts. Link: https://lore.kernel.org/r/20200511160625.173205.53306.stgit@awfm-01.aw.intel.comReviewed-by:
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Kaike Wan authored
Currently the ipoib UD mtu is restricted to 4K bytes. Remove this limitation so that the IPOIB module can potentially use an MTU (in UD mode) that is bounded by the MTU of the underlying device. A field is added to the ib_port_attr structure to indicate the maximum physical MTU the underlying device supports. Link: https://lore.kernel.org/r/20200511160618.173205.23053.stgit@awfm-01.aw.intel.comReviewed-by:
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Grzegorz Andrejczuk authored
This is implementation of RSM rule for AIP packets. AIP rule will use rule RSM2 and will match standard Infiniband packet containg BTH (LNH==BTH) and having Dest QPN prefixed with value 0x81. Spread between receive contexts will be done using source QPN bits. VNIC and AIP will share receive contexts, so their rules will point to the same RMT entries and their shared code is moved to separate functions. If any of the rules is active RMT mapping will be skipped for latter. Changed function hfi1_vnic_is_rsm_full to be more general and moved it from main header to chip.c. Changed the order of RSM rules because AIP rule as more specific one is needed to be placed before more general QOS rule. Rules are occupying two last RSM registers. Link: https://lore.kernel.org/r/20200511160612.173205.73002.stgit@awfm-01.aw.intel.comReviewed-by:
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Gary Leshner authored
Adds capability to create a qpn to be recognized as an accelerated UD QP for ipoib. This is accomplished by reserving 0x81 in byte[0] of the qpn as the prefix for these qp types and reserving qpns between 0x810000 and 0x81ffff. The hfi1 capability mask already contained a flag for the VNIC netdev. This has been renamed and extended to include both VNIC and ipoib. The rvt code to allocate qps now recognizes this flag and sets 0x81 into byte[0] of the qpn. The code to allocate qpns is modified to reset the qpn numbering when it is detected that a value is located in byte[0] for a UD QP and it is a qpn being requested for net dev use. If it is a regular UD QP then it is allowable to have bits set in byte[0] of the qpn and provide the previously normal behavior. The code to free the qpn now checks for the AIP prefix value of 0x81 and removes it from the qpn before being freed so that the lower 16 bit number can be reused. This patch requires minor changes in the IB core and ipoib to facilitate the creation of accelerated UP QPs. Link: https://lore.kernel.org/r/20200511160607.173205.11757.stgit@awfm-01.aw.intel.comReviewed-by:
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Gary Leshner authored
The module parameter for KDETH qpns is being removed in favor of always using the default value of 0x80 as the qpn prefix. Defines have been added for various KDETH values including the prefix of 0x80. The reserved range now starts at the base value for KDETH qpns (0x80) and extends up to and including the last qpn for other reserved QP prefixed types. Adjust other QP prefixed define names to match KDETH defined names. Link: https://lore.kernel.org/r/20200511160600.173205.27508.stgit@awfm-01.aw.intel.comReviewed-by:
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Gary Leshner authored
This implements the transmit side of the multiple transmit queue RDMA netdev used to accelerate ipoib. The receive side remains the ipoib internal implementation. The init/unint/open/stop netdev operations are saved off and called by the versions within the hfi1 netdev in order to initialize the connected mode resources present in ipoib thus allowing us to switch modes between datagram and connected. The datagram queue pair instantiated by the ipoib ulp is used by this implementation for its queue pair number and to register with multicast. The above queue pair is not used on transmit other than its qpn as the verbs layer is skipped and packets are directly submitted to the sdma engines. Link: https://lore.kernel.org/r/20200511160554.173205.1369.stgit@awfm-01.aw.intel.comReviewed-by:
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Gary Leshner authored
This patch implements the mechanism to accelerate the transmit side of a multiple transmit queue RDMA netdev by submitting the packets to the SDMA engine directly instead of sending through the verbs layer. This patch also changes the UD/SEND_ONLY op to output the entropy value in byte 0 of deth[1]. UD/SEND_ONLY_WITH_IMMEDIATE uses the previous behavior with no entropy value being output. The code in the ipoib rdma netdev which submits tx requests upon successful submission will call trace_sdma_output_ibhdr to output the ibhdr to the trace buffer. Link: https://lore.kernel.org/r/20200511160548.173205.45616.stgit@awfm-01.aw.intel.comReviewed-by:
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Kaike Wan authored
The accelerated IP capability bit is added to allow users to control which feature is enabled and disabled. Link: https://lore.kernel.org/r/20200511160541.173205.96870.stgit@awfm-01.aw.intel.comReviewed-by:
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Gal Pressman authored
The host info feature allows the driver to infrom the EFA device firmware with system configuration for debugging and troubleshooting purposes. The host info buffer is passed as an admin command DMA mapped control buffer, and is unmapped and freed once the command CQE is consumed. Currently, the setting of host info is done for each device on its probe. Failing to set the host info for the device shall not disturb the probe flow, any errors will be discarded. Link: https://lore.kernel.org/r/20200512152204.93091-3-galpress@amazon.comReviewed-by:
Firas JahJah <firasj@amazon.com> Reviewed-by:
Guy Tzalik <gtzalik@amazon.com> Signed-off-by:
Gal Pressman <galpress@amazon.com> Signed-off-by:
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Gal Pressman authored
When using a control buffer the ctrl_data bit should be set in order to indicate the control buffer address is valid, not ctrl_data_indirect which is used when the control buffer itself is indirect. Fixes: e9c6c537 ("RDMA/efa: Add common command handlers") Link: https://lore.kernel.org/r/20200512152204.93091-2-galpress@amazon.comReviewed-by:
Yossi Leybovich <sleybo@amazon.com> Signed-off-by:
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- 20 May, 2020 1 commit
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Aharon Landau authored
Missing INIT2INIT entry in the list of modify commands caused DEVX applications to be unable to modify_qp for this transition state. Add the MLX5_CMD_OP_INIT2INIT_QP opcode to the list of allowed DEVX opcodes. Fixes: e662e14d ("IB/mlx5: Add DEVX support for modify and query commands") Link: https://lore.kernel.org/r/20200513095550.211345-1-leon@kernel.orgSigned-off-by:
Aharon Landau <aharonl@mellanox.com> Reviewed-by:
Maor Gottlieb <maorg@mellanox.com> Signed-off-by:
Leon Romanovsky <leonro@mellanox.com> Signed-off-by:
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- 19 May, 2020 15 commits
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Lijun Ou authored
When rq/srq sge length is smaller than sq sge length, it will produce a local length error and may cause the bus to hang. Therefore, for rq wqe and srq wqe, one reserved sge pointing to a reserved mr is used to avoid this error. Link: https://lore.kernel.org/r/1588931159-56875-10-git-send-email-liweihang@huawei.comSigned-off-by:
Lijun Ou <oulijun@huawei.com> Signed-off-by:
Weihang Li <liweihang@huawei.com> Signed-off-by:
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Xi Wang authored
Rename the PAGE_ADDR_SHIFT as HNS_HW_PAGE_SHIFT to make code more readable. Link: https://lore.kernel.org/r/1588931159-56875-9-git-send-email-liweihang@huawei.comSigned-off-by:
Xi Wang <wangxi11@huawei.com> Signed-off-by:
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Weihang Li authored
srq_context is a local variables and is only used to get some fields from buffer of mailbox. It's meaningless to copy mailbox's buffer's contents back to it. Link: https://lore.kernel.org/r/1588931159-56875-8-git-send-email-liweihang@huawei.comSigned-off-by:
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Lang Cheng authored
The length information should be stored in the struct ib_mr object, otherwise the length value of a valid mr object would always be 0. Link: https://lore.kernel.org/r/1588931159-56875-7-git-send-email-liweihang@huawei.comSigned-off-by:
Lang Cheng <chenglang@huawei.com> Signed-off-by:
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Weihang Li authored
For ilog2(x), if x is 0 and not a constant variable, it will return -1. And there will be an error as below: hns3 0000:7d:00.0 hns_0: Local work queue 0x8 catast error, sub_event type is: 2 So modify to_hr_hem_entries_shift() to return 0 if conut is 0. Fixes: 54d66387 ("RDMA/hns: Optimize WQE buffer size calculating process") Link: https://lore.kernel.org/r/1588931159-56875-6-git-send-email-liweihang@huawei.comSigned-off-by:
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Weihang Li authored
srq's attribute max_wr should be 1 less than the total count of wqe. Fixes: ffb1308b ("RDMA/hns: Move SRQ code to the reasonable place") Link: https://lore.kernel.org/r/1588931159-56875-5-git-send-email-liweihang@huawei.comSigned-off-by:
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Wenpeng Liang authored
When allocating eq buffer, the size of base address page should be defined by eqe_ba_pg_sz instead of srqwqe_ba_pg_sz. Fixes: 477a0a38 ("RDMA/hns: Optimize 0 hop addressing for EQE buffer") Link: https://lore.kernel.org/r/1588931159-56875-4-git-send-email-liweihang@huawei.comSigned-off-by:
Wenpeng Liang <liangwenpeng@huawei.com> Signed-off-by:
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Lang Cheng authored
The firmware has reduced the number of descriptions of command HNS_ROCE_OPC_QUERY_PF_TIMER_RES to 1. The driver needs to adapt, otherwise the hardware will report error 4(CMD_NEXT_ERR). Fixes: 0e40dc2f ("RDMA/hns: Add timer allocation support for hip08") Link: https://lore.kernel.org/r/1588931159-56875-3-git-send-email-liweihang@huawei.comSigned-off-by:
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Lijun Ou authored
The qkey queried through the query ud qp verb is a fixed value and it should be read from qp context. Fixes: 926a01dc ("RDMA/hns: Add QP operations support for hip08 SoC") Link: https://lore.kernel.org/r/1588931159-56875-2-git-send-email-liweihang@huawei.comSigned-off-by:
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Gustavo A. R. Silva authored
The current codebase makes use of one-element arrays in the following form: struct something { int length; u8 data[1]; }; struct something *instance; instance = kmalloc(sizeof(*instance) + size, GFP_KERNEL); instance->length = size; memcpy(instance->data, source, size); but the preferred mechanism to declare variable-length types such as these ones is a flexible array member[1][2], introduced in C99: struct foo { int stuff; struct boo array[]; }; By making use of the mechanism above, we will get a compiler warning in case the flexible array does not occur last in the structure, which will help us prevent some kind of undefined behavior bugs from being inadvertently introduced[3] to the codebase from now on. So, replace the one-element array with a flexible-array member. Also, make use of the new struct_size() helper to properly calculate the size of struct siw_pbl. This issue was found with the help of Coccinelle and, audited and fixed _manually_. [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html [2] https://github.com/KSPP/linux/issues/21 [3] commit 76497732 ("cxgb3/l2t: Fix undefined behaviour") Link: https://lore.kernel.org/r/20200519233018.GA6105@embeddedorSigned-off-by:Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by:
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Danil Kipnis authored
When Block Device Layer is disabled, BLK_MAX_SEGMENT_SIZE is undefined. The rtrs is a transport library and should compile independently of the block layer. The desired max segment size should be passed down by the user. Introduce max_segment_size parameter for the rtrs_clt_open() call. Fixes: f7a7a5c2 ("block/rnbd: client: main functionality") Fixes: 6a98d71d ("RDMA/rtrs: client: main functionality") Fixes: cb80329c ("RDMA/rtrs: client: private header with client structs and functions") Fixes: b5c27cdb ("RDMA/rtrs: public interface header to establish RDMA connections") Link: https://lore.kernel.org/r/20200519111419.924170-1-danil.kipnis@cloud.ionos.comSigned-off-by:
Danil Kipnis <danil.kipnis@cloud.ionos.com> Reported-by:
Randy Dunlap <rdunlap@infradead.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested Signed-off-by:
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Wei Yongjun authored
Fix to return negative error code -ENOMEM from the some error handling cases instead of 0, as done elsewhere in this function. Fixes: 9cb83748 ("RDMA/rtrs: server: main functionality") Fixes: 91b11610 ("RDMA/rtrs: server: sysfs interface functions") Link: https://lore.kernel.org/r/20200519091912.134358-1-weiyongjun1@huawei.comReported-by:
Hulk Robot <hulkci@huawei.com> Signed-off-by:
Wei Yongjun <weiyongjun1@huawei.com> Reviewed-by:
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Gustavo A. R. Silva authored
Remove the if-statement and return the value contained in _err_, unconditionally. Link: https://lore.kernel.org/r/20200519163612.GA6043@embeddedor Addresses-Coverity-ID: 1493753 ("Identical code for different branches") Fixes: 6a98d71d ("RDMA/rtrs: client: main functionality") Signed-off-by:
Bart Van Assche <bvanassche@acm.org> Signed-off-by:
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Dan Carpenter authored
These > comparisons should be >= to prevent accessing one element beyond the end of the buffer. Fixes: 9cb83748 ("RDMA/rtrs: server: main functionality") Link: https://lore.kernel.org/r/20200519154525.GA66801@mwandaSigned-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
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Dan Carpenter authored
The problem is that "req->sg_cnt" is an unsigned int so if "nr" is negative, it gets type promoted to a high positive value and the condition is false. This patch fixes it by handling negatives separately. Fixes: 6a98d71d ("RDMA/rtrs: client: main functionality") Link: https://lore.kernel.org/r/20200519133223.GN2078@kadamSigned-off-by:
Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by:
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- 17 May, 2020 5 commits
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Linus Torvalds authored
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Kamal Heib authored
Avoid disabling device management for devices that don't support Management datagrams (MADs) by checking if the "mad_agent" pointer is initialized before calling ib_modify_port, also fix the error flow in srpt_refresh_port() to disable device management if ib_register_mad_agent() fail. Fixes: 09f8a148 ("RDMA/srpt: Fix handling of SR-IOV and iWARP ports") Link: https://lore.kernel.org/r/20200514114720.141139-1-kamalheib1@gmail.comSigned-off-by:
Kamal Heib <kamalheib1@gmail.com> Reviewed-by:
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Shay Drory authored
Current description doesn't include new devices, change it by updating to have more generic description and remove DRIVER_NAME and DRIVER_VERSION defines. Link: https://lore.kernel.org/r/20200513095304.210240-1-leon@kernel.orgSigned-off-by:
Shay Drory <shayd@mellanox.com> Signed-off-by:
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Xiongfeng Wang authored
When I cat module parameter 'srpt_service_guid', it displays as follows. It is better to add a newline for easy reading. [root@hulk-202 ~]# cat /sys/module/ib_srpt/parameters/srpt_service_guid 0x0205cdfffe8346b9[root@hulk-202 ~]# Link: https://lore.kernel.org/r/1589182629-27743-1-git-send-email-wangxiongfeng2@huawei.comSigned-off-by:
Xiongfeng Wang <wangxiongfeng2@huawei.com> Signed-off-by:
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Jason Gunthorpe authored
The uverbs layer largely duplicate the code in ib_create_srq(), with the slight difference that it passes in a udata. Move all the code together into ib_create_srq_user() and provide an inline for kernel users, similar to other create calls. Link: https://lore.kernel.org/r/20200506082444.14502-6-leon@kernel.orgSigned-off-by:
Yishai Hadas <yishaih@mellanox.com> Signed-off-by:
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